Threaded sleeve screwing machine suitable for reinforcing steel bars with different diameters

Abstract

The utility model relates to the technical field of electric tools, and discloses a threaded sleeve screwing machine suitable for reinforcing steel bars with different diameters, which comprises a rear shell, an upper shell and a lower shell are respectively arranged on the left side of the rear shell, a driving mechanism is arranged in the lower shell, a clamping mechanism is arranged in the upper shell, and the clamping mechanism comprises a wear-resistant ring. The inner side of the wear-resistant ring is movably connected with a rotating wheel, the top of the rotating wheel is provided with a spline shaft, the outer wall of the spline shaft is fixedly connected with an outer spline, the bottom of the rotating wheel is fixedly connected with a fixed shaft, the outer wall of the fixed shaft is fixedly connected with a tension spring, and the end, away from the fixed shaft, of the tension spring is provided with a cam control panel. According to the threaded sleeve screwing machine suitable for the steel bars with the different diameters, three-point-position clamping, automatic centering and self-adaption to workpieces with the different diameters are achieved, a clamping mechanism does not need to be replaced and adjusted, clamping is convenient and reliable, three-point simultaneous clamping is firm, all parts are arranged in the shell, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a thread sleeve threading machine suitable for steel bars with different diameters. Background Art

[0002] Currently, when people need to make threaded connections between steel bars and tubular sleeves, most of them use manual tools such as steel bar wrenches or pipe pliers. These tools have many defects: slow tightening speed, low efficiency, insufficient torsional torque, and connection strength that does not meet national standards. Neither progress efficiency nor quality meet modern requirements.

[0003] Existing electric wrenches have defects in the clamping and holding structure during connection, clamping, and twisting, resulting in insufficient clamping force, insufficient torque, slippage, etc. In addition, other clamping devices are exposed, creating entanglement and unsafe risks. Utility Model Content

[0004] The purpose of the utility model is to provide a thread sleeve threading machine suitable for steel bars of different diameters, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a threaded sleeve threading machine adapted to steel bars of different diameters, comprising a rear housing, an upper housing and a lower housing being respectively provided on the left side of the rear housing, a driving mechanism being provided inside the lower housing, and a clamping mechanism being provided inside the upper housing;

[0006] The clamping mechanism includes a wear-resistant ring, which is arranged inside the upper shell body, and a rotating wheel is movably connected to the inner side of the wear-resistant ring, a spline shaft is provided on the top of the rotating wheel, an external spline is fixedly connected to the outer wall of the spline shaft, and the bottom of the rotating wheel is fixedly connected to the fixed shaft, and a tension spring is fixedly connected to the outer wall of the fixed shaft, and a cam control plate is provided at the end of the tension spring away from the fixed shaft, a clamping wheel is provided on the outer wall of the spline shaft, a fixed block is fixedly connected to the inner wall of the lower shell body, a spring is fixedly connected to one side of the fixed block, a stopper is rotatably connected to the inside of the lower shell body, and a push block is fixedly connected to the bottom of the cam control plate.

[0007] Preferably, the left side of the stop block is arranged as an inclined surface, and the right side of the stop block is arranged as a flat surface, so that the push block can be limited.

[0008] Preferably, one side of the stop block contacts one side of the spring sheet, and the outer wall of the external spline engages with the inside of the cam control plate, so that the external spline can rotate under the action of the cam control plate.

[0009] Preferably, an eccentric hole is provided inside the clamping wheel, and the spline shaft is meshedly connected to the inner wall of the eccentric hole, so that the clamping wheel can drive the clamping wheel to change its angle, thereby clamping the steel bar.

[0010] Preferably, the driving mechanism includes a motor, which is fixedly connected to the inner wall of the upper shell, and the output end of the motor is fixedly connected to an output shaft, the front end of the output shaft is fixedly connected to a small bevel gear, the outer ring of the small bevel gear is engaged with a large bevel gear, the inner ring of the large bevel gear is fixedly connected to support shaft one, the outer wall of support shaft one is fixedly connected to small gear one, the outer ring of small gear one is engaged with a large gear, the inner ring of large gear is fixedly connected to support shaft two, the outer ring of large gear is engaged with small gear two, and the inner ring of small gear two is fixedly connected to support shaft three, so as to achieve the purpose of stable driving.

[0011] Preferably, the support shaft three is rotatably connected to the top of the inner wall of the upper shell, and the outer ring of the pinion gear two is engaged with the outer ring of the rotating wheel, so that the pinion gear two can drive the rotating wheel to rotate.

[0012] Preferably, the support shaft 1 is rotatably connected to the bottom of the inner wall of the upper shell, and the top end of the support shaft 2 is rotatably connected to the bottom of the inner wall of the upper shell, thereby stably supporting the support shaft 1 and the support shaft 2.

[0013] Compared with the prior art, the present invention provides a thread sleeve threading machine that is suitable for steel bars of different diameters and has the following beneficial effects:

[0014] This threaded sleeve threading machine is suitable for steel bars of different diameters. It has three-point clamping, automatic centering, and can adapt to workpieces of different diameters without the need to replace or adjust the clamping mechanism.

[0015] The thread sleeve threading machine is suitable for steel bars of different diameters, has convenient and reliable clamping, and can clamp three points firmly at the same time.

[0016] The thread sleeve threading machine is suitable for steel bars with different diameters, and all parts are arranged in a shell, which is safe and reliable.

[0017] The threaded sleeve threading machine, which is suitable for steel bars of different diameters, adopts an eccentric clamping wheel. The three eccentric wheels work together to clamp firmly and have a large drag torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in 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 those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0019] Figure 1 This is a front view of the structure of the utility model;

[0020] Figure 2 This is a bottom view of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure after the upper shell is disassembled;

[0022] Figure 4 This is a schematic diagram of the structure after the lower shell is disassembled;

[0023] Figure 5 It is a structural diagram of the rotating wheel;

[0024] Figure 6 It is a structural diagram of the clamping wheel;

[0025] Figure 7 It is a bottom view of the lower shell.

[0026] In the figure: 1. rear housing; 2. upper housing; 3. lower housing; 4. clamping mechanism; 41. rotating wheel; 42. spline shaft; 43. clamping wheel; 44. external spline; 45. cam control plate; 46. fixed shaft; 47. tension spring; 48. wear-resistant ring; 49. fixed block; 401. spring; 402. stop block; 403. push block; 5. driving mechanism; 51. motor; 52. output shaft; 53. small bevel gear; 54. large bevel gear; 55. support shaft one; 56. small gear one; 57. large gear; 58. support shaft two; 59. small gear two; 501. support shaft three. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in 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.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The utility model provides the following technical solutions:

[0030] Example 1, combined with Figures 1 to 7A threaded sleeve threading machine adapted to steel bars of different diameters comprises a rear housing 1, an upper housing 2 and a lower housing 3 are respectively provided on the left side of the rear housing 1, a driving mechanism 5 is provided inside the lower housing 3, and a clamping mechanism 4 is provided inside the upper housing 2;

[0031] The clamping mechanism 4 includes a wear-resistant ring 48, which is arranged inside the upper shell 2. A rotating wheel 41 is movably connected to the inner side of the wear-resistant ring 48. A spline shaft 42 is provided on the top of the rotating wheel 41. The outer wall of the spline shaft 42 is fixedly connected to an external spline 44. The bottom of the rotating wheel 41 is fixedly connected to a fixed shaft 46. A tension spring 47 is fixedly connected to the outer wall of the fixed shaft 46. A cam control plate 45 is provided on the end of the tension spring 47 away from the fixed shaft 46. A clamping wheel 43 is provided on the outer wall of the spline shaft 42. A fixed block 49 is fixedly connected to the inner wall of the lower shell 3. A spring 401 is fixedly connected to one side of the fixed block 49. A stopper 402 is rotatably connected to the inside of the lower shell 3. A push block 403 is fixedly connected to the bottom of the cam control plate 45.

[0032] Furthermore, three clamping wheels 43 are provided, and the three clamping wheels 43 are distributed at a 120-degree angle.

[0033] Furthermore, the left side of the stopper 402 is arranged as an inclined surface, and the right side of the stopper 402 is arranged as a flat surface, so that the push block 403 can be limited.

[0034] Furthermore, one side of the stopper 402 contacts one side of the spring plate 401 , and the outer wall of the external spline 44 engages with the inside of the cam control plate 45 , so that the external spline 44 can rotate under the action of the cam control plate 45 .

[0035] Furthermore, an eccentric hole is provided inside the clamping wheel 43, and the spline shaft 42 is meshedly connected to the inner wall of the eccentric hole, so that the clamping wheel 43 can drive the clamping wheel 43 to change its angle, thereby clamping the steel bar.

[0036] Example 2, see Figures 1 to 7 On the basis of the first embodiment, the driving mechanism 5 is further obtained to include a motor 51, the motor 51 is fixedly connected to the inner wall of the upper shell 2, the output end of the motor 51 is fixedly connected to the output shaft 52, the front end of the output shaft 52 is fixedly connected to a small bevel gear 53, the outer ring of the small bevel gear 53 is engaged with a large bevel gear 54, the inner ring of the large bevel gear 54 is fixedly connected to a support shaft 1 55, the outer wall of the support shaft 1 55 is fixedly connected to a small gear 1 56, the outer ring of the small gear 1 56 is engaged with a large gear 57, the inner ring of the large gear 57 is fixedly connected to a support shaft 2 58, the outer ring of the large gear 57 is engaged with a small gear 2 59, and the inner ring of the small gear 2 59 is fixedly connected to the support shaft 3 501, thereby achieving the purpose of stable driving.

[0037] Furthermore, the support shaft 3 501 is rotatably connected to the top of the inner wall of the upper shell 2 , and the outer ring of the pinion 2 59 is engaged with the outer ring of the rotating wheel 41 , so that the pinion 2 59 can drive the rotating wheel 41 to rotate.

[0038] Furthermore, support shaft one 55 is rotatably connected to the bottom of the inner wall of the upper shell 2 , and the top end of support shaft two 58 is rotatably connected to the bottom of the inner wall of the upper shell 2 , thereby providing stable support for support shaft one 55 and support shaft two 58 .

[0039] During actual operation, when this device is used, the motor 51 can be started first, so that the output end of the motor 51 can drive the output shaft 52 to rotate, and the output shaft 52 can drive the small bevel gear 53, the large bevel gear 54, the support shaft 1 55, the small gear 1 56, the large gear 57 and the small gear 2 59 to rotate in turn, thereby achieving the purpose of stable driving.

[0040] When the pinion 2 59 rotates, it will also drive the meshing rotating wheel 41 to rotate clockwise. At this time, the push block 403 will press against the side of the stop block 402 that is not the inclined surface, and the stop block 402 will be limited by the fixed block 49, so that the push block 403 can be limited. The cam control plate 45 will not rotate with the rotation of the rotating wheel 41. At the same time, when the rotating wheel 41 rotates, the external spline 44, the spline shaft 42, and the clamping wheel 43 are driven to rotate through the spline connection. Because the clamping wheel 43 is an eccentric wheel setting, the simultaneous rotation of the three clamping wheels 43 can define a circle at three points, and the size of the circle can change with the rotation angle, and under the action of the tension spring 47, the rotating wheel 41 can be reset.

[0041] When the positioning of the steel bars is completed, the motor 51 can be started to reverse, and the rotating wheel 41 will achieve the purpose of counterclockwise rotation through transmission. When the rotating wheel 41 rotates counterclockwise, it will drive the cam control plate 45 to rotate counterclockwise. At this time, since the contact surface of the push block 403 and the stop block 402 is an inclined surface, the push block 403 can push the stop block 402 to move under the action of the inclined surface. At the same time, the stop block 402 can press the spring piece 401, so that the stop block 402 can be reset. While clamping the steel bar, the steel bar can also be rotated, achieving the purpose of threading the sleeve, and facilitating the further development of the steel bar processing work.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A threaded sleeve threading machine adapted to steel bars of different diameters, comprising a rear housing (1), characterized in that: An upper shell (2) and a lower shell (3) are respectively provided on the left side of the rear shell (1); a driving mechanism (5) is provided inside the lower shell (3); and a clamping mechanism (4) is provided inside the upper shell (2); The clamping mechanism (4) includes a wear-resistant ring (48), which is arranged inside the upper shell (2). The wear-resistant ring (48) is movably connected to a rotating wheel (41) on the inside. A spline shaft (42) is provided on the top of the rotating wheel (41). The outer wall of the spline shaft (42) is fixedly connected to an external spline (44). The bottom of the rotating wheel (41) is fixedly connected to a fixed shaft (46). The outer wall of the fixed shaft (46) is fixedly connected to a tension spring (47). A cam control plate (45) is provided at one end of the tension spring (47) away from the fixed shaft (46). A clamping wheel (43) is provided on the outer wall of the spline shaft (42). A fixed block (49) is fixedly connected to the inner wall of the lower shell (3). A spring (401) is fixedly connected to one side of the fixed block (49). A stopper (402) is rotatably connected to the inside of the lower shell (3). The bottom of the cam control plate (45) is fixedly connected to a push block (403).

2. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 1, characterized in that: The left side of the stopper (402) is arranged in an inclined surface, and the right side of the stopper (402) is arranged in a flat surface.

3. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 1, characterized in that: One side of the stopper (402) contacts one side of the spring (401), and the outer wall of the external spline (44) engages with the inside of the cam control plate (45).

4. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 1, characterized in that: An eccentric hole is provided inside the clamping wheel (43), and the spline shaft (42) is meshedly connected to the inner wall of the eccentric hole.

5. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 1, characterized in that: The driving mechanism (5) comprises a motor (51), wherein the motor (51) is fixedly connected to the inner wall of the upper housing (2), an output end of the motor (51) is fixedly connected to an output shaft (52), a front end of the output shaft (52) is fixedly connected to a small bevel gear (53), an outer ring of the small bevel gear (53) is meshed with a large bevel gear (54), an inner ring of the large bevel gear (54) is fixedly connected to a support shaft 1 (55), an outer wall of the support shaft 1 (55) is fixedly connected to a small gear 1 (56), an outer ring of the small gear 1 (56) is meshed with a large gear (57), an inner ring of the large gear (57) is fixedly connected to a support shaft 2 (58), an outer ring of the large gear (57) is meshed with a small gear 2 (59), and an inner ring of the small gear 2 (59) is fixedly connected to a support shaft 3 (501).

6. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 5, characterized in that: The support shaft three (501) is rotatably connected to the top of the inner wall of the upper shell (2), and the outer ring of the pinion two (59) is meshed with the outer ring of the rotating wheel (41).

7. The thread sleeve threading machine adapted to steel bars of different diameters according to claim 5, characterized in that: The support shaft 1 (55) is rotatably connected to the bottom of the inner wall of the upper shell (2), and the top end of the support shaft 2 (58) is rotatably connected to the bottom of the inner wall of the upper shell (2).

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