Half-round head self-tapping screw thread rolling machine with high reliability

Abstract

The utility model relates to the technical field of screws, in particular to a high-reliability half-round head self-tapping screw thread rolling machine which comprises a machine frame, a thread rolling groove is obliquely formed in the machine frame, a driving thread rolling plate is arranged on one side of the thread rolling groove in a sliding mode, a fixed thread rolling plate is arranged on the other side of the thread rolling groove, and a feeding device communicated with the thread rolling groove is arranged on one side of the fixed thread rolling plate. Thread rolling surfaces and cleaning mechanisms are arranged on the driving thread rolling plate and the fixed thread rolling plate; the cleaning mechanism comprises a plurality of sets of cleaning channel units which are perpendicular to the thread rolling face, extend inwards and are distributed in the length direction of the thread rolling groove in an array mode, and rotating shafts which correspond to the cleaning channel units and are arranged in a rotatable mode. The containing cavity is formed in the other side, opposite to the multiple sets of cleaning channel units, of the multiple sets of rotating shafts, the power assembly is used for driving the multiple sets of rotating shafts to rotate at the same time, the rotating shafts control connection and disconnection of the cleaning channel units and the containing cavity, and the cleaning channel units communicate with the containing groove to clean the thread rolling face. And the thread rolling quality and the thread rolling efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a high-reliability semicircular head self-tapping screw thread rolling machine. Background Art

[0002] The thread rolling machine uses two identical thread rolling plates with the same thread shape and helix angle as the bolt thread. When the thread rolling plates move against each other, the bolt blank between the two thread rolling plates is threaded. One bolt thread is processed once the thread rolling plates move back and forth, and the speed is quite high.

[0003] The utility model of Chinese patent application No. 202320694079.7 discloses an automatic thread rolling machine, including a box, a first motor is fixedly installed on the left side of the box and near the top thereof, a gear is fixedly installed on the output end of the first motor, a tooth plate is movably meshed on the top of the gear, a movable rubbing plate is fixedly connected to the top of the tooth plate passing through the box, a second motor is fixedly installed on the top of the inner wall of the box, a threaded rod is fixedly installed on the output end of the second motor, a threaded block is connected to the external thread of the threaded rod, a connecting rod is fixedly installed on the top of the threaded block, a fixed rubbing plate is provided at the other end of the connecting rod, a screen is provided inside the box, and a vibrator is fixedly installed on the bottom of the screen and near both sides thereof. The utility model realizes the adjustment of the distance between the thread rolling plates through the cooperation of the above structures, so that screws of different sizes can be rolled, thereby improving the scope of application of the thread rolling machine.

[0004] However, after the equipment completes the tooth rolling, waste chips are likely to remain on the tooth rolling board, thereby affecting the tooth rolling effect in subsequent production. Utility Model Content

[0005] In view of the above problems, the utility model provides a high-reliability semi-circular head self-tapping screw thread rolling machine, by arranging a plurality of cleaning channels on the thread rolling surfaces of the active thread rolling plate and the fixed thread rolling plate, and a rotating shaft is arranged between the cleaning channel and the accommodating chamber. After the active thread rolling plate moves to complete the thread rolling, the active thread rolling plate continues to move. After the contact plate a contacts the contact plate b, the rack will drive the plurality of gear groups to rotate and then drive the rotating shaft to rotate. Under the action of the transition channel, the cleaning channel and the accommodating chamber are connected, so that compressed air and lubricating oil are sprayed out from the thread rolling surface, thereby cleaning the thread rolling surface and improving the thread rolling quality and efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-reliability semi-circular head self-tapping screw thread rolling machine comprises a frame, a thread rolling groove is obliquely arranged on the frame, an active thread rolling plate is slidably arranged on one side of the thread rolling groove, and a fixed thread rolling plate arranged opposite to the active thread rolling plate is arranged on the other side, a feeding device connected to the thread rolling groove is arranged on one side of the fixed thread rolling plate, a thread rolling surface and a cleaning mechanism are arranged on both the active thread rolling plate and the fixed thread rolling plate, the cleaning mechanism comprises a plurality of groups of cleaning channel units extending inwardly perpendicular to the thread rolling surface and distributed in an array along the length direction of the thread rolling groove, a rotating shaft arranged corresponding to the cleaning channel units and rotatably arranged, an accommodating cavity arranged on the other side of the plurality of groups of the rotating shafts relative to the plurality of groups of the cleaning channel units, and a power component for driving the plurality of groups of the rotating shafts to rotate simultaneously, the rotating shaft controlling the opening and closing of the cleaning channel units and the accommodating cavity.

[0008] As an improvement, the cleaning channel unit includes a plurality of groups of cleaning channels distributed in an array along the length direction of the thread rolling groove.

[0009] As an improvement, the rotating shaft is arranged along the width direction of the thread rolling groove, and a transition channel connecting the cleaning channel and the accommodating cavity is opened on the rotating shaft along its radial direction, and several groups of the transition channels are evenly distributed along the length direction of the rotating shaft.

[0010] As an improvement, the accommodating cavity includes an air inlet and an oil inlet located on the side of the air inlet.

[0011] As an improvement, the power assembly includes a gear coaxially fixedly mounted on the rotating shaft, which is elastically slidably arranged and meshed with several groups of the gears, a contact plate a fixedly mounted on one group of the racks, and a contact plate b fixedly mounted on another group of the racks and arranged to contact the contact plate a.

[0012] As an improvement, the elastic force of the rack on the active thread rolling plate is greater than the elastic force of the rack on the fixed thread rolling plate.

[0013] The beneficial effects of the utility model are:

[0014] (1) After the active thread rolling plate moves upward to complete the thread rolling of the screw, the active thread rolling plate will continue to move so that the contact plate a and the contact plate b are in contact, thereby causing the two sets of racks to rotate successively, and the transition channel connects the accommodating chamber with the cleaning channel, so that compressed air and lubricating oil can clean the thread rolling surface, thereby ensuring the quality of thread rolling and improving the service life of the thread rolling plate;

[0015] (2) In the utility model, the compressed air can make the lubricating oil leave the thread rolling surface through the cleaning channel and enter the thread rolling groove, so that the thread rolling groove can be filled with lubricating oil mist, thereby improving the lubrication effect of the screw;

[0016] (3) In the present invention, the lubricating oil mist enters the thread rolling groove only after the active thread rolling plate completes one thread rolling. The lubricating oil mist will not enter the thread rolling groove during the resetting process of the active thread rolling plate and the thread rolling process, thereby reducing unnecessary waste and saving costs.

[0017] In summary, the utility model has the advantages of simple structure, good cleaning effect of thread rolling surface and high thread rolling quality, and is particularly suitable for the field of screw technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 Enlarged image of the channel unit for cleaning;

[0021] Figure 4 State diagram for cleaning institutions Figure 1 ;

[0022] Figure 5 State diagram for cleaning institutions Figure 2 . DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] Example:

[0027] like Figure 1 and Figure 2 As shown, a high-reliability semi-circular head self-tapping screw thread rolling machine comprises a frame 1, on which a thread rolling groove 2 is obliquely arranged, an active thread rolling plate 3 is slidably arranged on one side of the thread rolling groove 2, and a fixed thread rolling plate 4 arranged opposite to the active thread rolling plate 3 is arranged on the other side, a feeding device 5 connected to the thread rolling groove 2 is arranged on one side of the fixed thread rolling plate 4, a thread rolling surface 6 and a cleaning mechanism 7 are arranged on both the active thread rolling plate 3 and the fixed thread rolling plate 4, the cleaning mechanism 7 comprises a plurality of groups of cleaning channel units 71 extending inwardly perpendicular to the thread rolling surface 6 and distributed in an array along the length direction of the thread rolling groove 2, a rotating shaft 72 arranged corresponding to the cleaning channel unit 71 and rotatably arranged, an accommodating cavity 73 arranged on the other side of the plurality of groups of the rotating shaft 72 relative to the plurality of groups of the cleaning channel units 71, and a power component 74 for driving the plurality of groups of the rotating shaft 72 to rotate simultaneously, the rotating shaft 72 controls the on-off of the cleaning channel unit 71 and the accommodating cavity 73.

[0028] It should be noted that the high-reliability semicircular head self-tapping screw thread rolling machine also includes a reciprocating mechanism 8 that drives the active thread rolling plate 3 to move back and forth; the feeding device 5 feeds the screws to be threaded into the interior of the thread rolling groove 2 one by one.

[0029] It should be further explained that the reciprocating mechanism 8 and the feeding device 5 are both prior arts and will not be described in detail in the present invention.

[0030] It is important to note that the active thread rolling plate 3 is longer than the fixed thread rolling plate 4 .

[0031] Further, such as Figure 3 As shown, the cleaning channel unit 71 includes a plurality of groups of cleaning channels 711 distributed in an array along the length direction of the thread rolling groove 2 .

[0032] Furthermore, the rotating shaft 72 is arranged along the width direction of the thread rolling groove 2, and a transition channel 721 that can connect the cleaning channel 711 and the accommodating cavity 73 is opened on the rotating shaft 72 along its radial direction, and several groups of the transition channels 721 are evenly distributed along the length direction of the rotating shaft 72.

[0033] Further, such as Figure 2 As shown, the accommodating cavity 73 includes an air inlet 731 and an oil inlet 732 located on the side of the air inlet 731 .

[0034] It should be noted that the air inlet 731 is communicated with an external compressed air supply device, and the oil inlet 732 is communicated with an external oil supply device.

[0035] Furthermore, the power assembly 74 includes a corresponding gear 741 coaxially fixedly installed on the rotating shaft 72, a rack 742 elastically slidably arranged and meshing with several groups of the gears 741, a contact plate a743 fixedly installed on one group of the racks 742, and a contact plate b744 fixedly installed on another group of the racks 742 and arranged to contact the contact plate a743.

[0036] Furthermore, the elastic force of the rack 742 on the active thread rolling plate 3 is greater than the elastic force of the rack 742 on the fixed thread rolling plate 4 .

[0037] It should be noted that after the active thread rolling plate 3 moves to complete thread rolling, the active thread rolling plate 3 continues to move, the contact plate a743 contacts the contact plate b744, the rack 742 on the fixed thread rolling plate 4 moves and drives the several groups of gears 741 on the fixed thread rolling plate 4 to rotate, thereby driving the corresponding rotating shaft 72 to rotate, and the accommodating groove 73 is connected to the cleaning channel 711 through the transition channel 721, so that the compressed air can carry the lubricating oil mist into the thread rolling surface 6 on the fixed thread rolling plate 4.

[0038] It is also necessary to explain that after the rack 742 on the fixed thread rolling plate 4 moves into place, the active thread rolling plate 3 continues to move. At this time, the rack 742 on the active thread rolling plate 3 drives the corresponding gear 741 to rotate, and then the corresponding rotating shaft 72 rotates. The accommodating groove 73 is connected with the cleaning channel 711 through the transition channel 721, and then the compressed air can carry the lubricating oil mist into the thread rolling surface 6 on the active thread rolling plate 3.

[0039] It is important to explain that, during the resetting of the active thread rolling plate 3 , the two groups of racks 742 are reset, and the rotating shaft 72 rotates to separate the cleaning channel 711 and the accommodating chamber 73 .

[0040] Working process:

[0041] like Figure 2 , Figure 4 and Figure 5As shown, the feeding device 5 feeds a screw to be threaded into the thread rolling groove 2, and then the reciprocating mechanism 8 drives the active thread rolling plate 3 to move and cooperates with the fixed thread rolling plate 4 to roll the screw. After the active thread rolling plate 3 moves and completes the thread rolling, the active thread rolling plate 3 continues to move, the contact plate a743 contacts the contact plate b744, the rack 742 on the fixed thread rolling plate 4 moves and drives the several groups of gears 741 on the fixed thread rolling plate 4 to rotate, thereby driving the corresponding rotating shaft 72 to rotate, and the accommodating groove 73 is connected with the cleaning channel 711 through the transition channel 721, so that the compressed air can carry the lubricant. The lubricating oil mist enters the thread rolling surface 6 on the fixed thread rolling plate 4. After the rack 742 on the fixed thread rolling plate 4 moves into place, the active thread rolling plate 3 continues to move. At this time, the rack 742 on the active thread rolling plate 3 drives the corresponding gear 741 to rotate, and then the corresponding rotating shaft 72 rotates. The accommodating groove 73 is connected with the cleaning channel 711 through the transition channel 721, and then the compressed air can bring the lubricating oil mist into the thread rolling surface 6 on the active thread rolling plate 3. After that, the active thread rolling plate 3 is reset, and the two groups of racks 742 are reset. The rotating shaft 72 rotates to separate the cleaning channel 711 and the accommodating cavity 73.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high reliability semicircular head self-tapping screw thread rolling machine, characterized in that: The invention comprises a frame (1), wherein a thread rolling groove (2) is obliquely arranged on the frame (1), an active thread rolling plate (3) is slidably arranged on one side of the thread rolling groove (2), and a fixed thread rolling plate (4) arranged opposite to the active thread rolling plate (3) is arranged on the other side, and a feeding device (5) connected to the thread rolling groove (2) is arranged on one side of the fixed thread rolling plate (4), and a thread rolling surface (6) and a cleaning mechanism (7) are arranged on both the active thread rolling plate (3) and the fixed thread rolling plate (4), and the cleaning mechanism (7) comprises a thread rolling surface (6) perpendicular to the thread rolling surface (6) and a cleaning mechanism (7) arranged on the fixed thread rolling plate (4). ) and arranged in an array along the length direction of the thread rolling groove (2), a rotating shaft (72) arranged corresponding to the cleaning channel unit (71) and rotatable, an accommodating cavity (73) arranged on the other side of the several groups of the rotating shafts (72) relative to the several groups of the cleaning channel units (71), and a power assembly (74) for driving the several groups of the rotating shafts (72) to rotate simultaneously, wherein the rotating shaft (72) controls the on and off of the cleaning channel unit (71) and the accommodating cavity (73).

2. A high reliability semicircular head self-tapping screw thread rolling machine according to claim 1, characterized in that: The cleaning channel unit (71) comprises a plurality of groups of cleaning channels (711) distributed in an array along the length direction of the thread rolling groove (2).

3. A high reliability semicircular head self-tapping screw thread rolling machine according to claim 2, characterized in that: The rotating shaft (72) is arranged along the width direction of the thread rolling groove (2), and a transition channel (721) which can connect the cleaning channel (711) and the accommodating chamber (73) is opened on the rotating shaft (72) along its radial direction, and a plurality of groups of the transition channels (721) are evenly distributed along the length direction of the rotating shaft (72).

4. A high reliability round head self-tapping screw thread rolling machine according to claim 1, characterized in that: The accommodating cavity (73) comprises an air inlet (731) and an oil inlet (732) located on a side of the air inlet (731).

5. A high reliability round head self-tapping screw thread rolling machine according to claim 1, characterized in that: The power assembly (74) comprises a gear (741) coaxially fixedly mounted on the rotating shaft (72), a rack (742) elastically slidably arranged and meshing with a plurality of groups of the gears (741), a contact plate a (743) fixedly mounted on a group of the racks (742), and a contact plate b (744) fixedly mounted on another group of the racks (742) and arranged to contact the contact plate a (743).

6. A high reliability round head self-tapping screw thread rolling machine according to claim 5, characterized in that: The elastic force of the rack (742) on the active thread rolling plate (3) is greater than the elastic force of the rack (742) on the fixed thread rolling plate (4).

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