Quick tapping tool with gradual change section chip removal combined structure

Abstract

The utility model discloses a quick tapping tool with a gradual change section chip removal combined structure, and relates to the technical field of tapping tools. The rapid tapping tool with the gradual change amount section chip removal combined structure comprises a limiting frame, a tapping mechanism is arranged above the limiting frame, a limiting assembly comprises a movable frame movably installed below the limiting frame, a connecting rod is movably installed below the movable frame, a limiting rod is movably installed at the bottom end of the connecting rod, and a tapping mechanism is arranged above the limiting frame. A transmission ring is movably installed below the limiting rod, a pressure bearing separates rotation of the screw tap from static monitoring of a pressure sensor, the screw tap can rotate freely, axial pressure can be effectively transmitted to the sensor, the situation that rotation interferes with pressure monitoring is avoided, meanwhile, the linear bearing limits the screw tap to move only in the axial direction, pressure abnormity caused by deviation is avoided, and the service life of the screw tap is prolonged. The grip is matched with the ratchet and the ratchet wheel, so that rotation action and pressure application are separated, the influence of manual force application fluctuation is structurally eradicated, and pressure stability and controllability are achieved through cooperation of multiple components.

Description

Technical Field

[0001] This utility model relates to the field of tapping tool technology, specifically a rapid tapping tool with a chip removal combination structure of gradual variable segment. Background Technology

[0002] The core function of tapping tools is to machine internal threads that meet precision requirements on workpieces through cutting or extrusion forming, while also considering efficiency, material adaptability, and the reliability of threaded connections. From basic hand taps to CNC tapping systems, different tools, through structural design, material selection, and functional integration, have solved thread machining problems under various working conditions, making them indispensable key process equipment in mechanical manufacturing.

[0003] The existing Chinese utility model patent with publication number CN222779477U discloses a ratchet tap wrench with a retaining pin, belonging to the technical field of tap wrenches. This ratchet tap wrench with a retaining pin includes a wrench body, a fixed retaining pin, and a handle insert. The top of the wrench body has a retaining pin mounting hole from top to bottom, and the upper side has a handle mounting hole that passes through the retaining pin mounting hole. The inner wall of the retaining pin mounting hole has an internal thread. A handle insert is inserted into the handle mounting hole, and the outer wall of the fixed retaining pin has an external thread. During assembly, the fixed retaining pin is screwed into the retaining pin mounting hole from top to bottom to secure the handle insert below. This utility model has the advantage of relatively fixing the assembled wrench body and handle insert, making it less prone to slippage during tapping and effectively improving tapping quality.

[0004] The aforementioned ratchet tap wrench cannot guarantee that the tap and the working surface are perpendicular during use. This will cause the tap's axis to not completely coincide with the axis of the hole structure during tapping, affecting the tapping effect. At the same time, a certain downward pressure needs to be maintained during tapping. The downward pressure of the aforementioned ratchet tap wrench is controlled by the user. Whether the pressure is insufficient, excessive, or fluctuating, it will have a negative impact on the dimensional accuracy, surface quality, and performance of the thread. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a rapid tapping tool with a gradually variable chip removal combination structure, which solves the problems of pressure fluctuation and the inability to limit the tap angle.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid tapping tool with a gradually increasing chip removal combination structure includes a limiting frame, and a tapping mechanism is disposed above the limiting frame.

[0007] The limiting assembly comprises a movable frame movably arranged below the limiting frame, a connecting rod movably arranged below the movable frame, a limiting rod movably arranged at the bottom end of the connecting rod, a transmission ring movably arranged below the limiting rod, a limiting ring inserted and arranged above the transmission ring, and a suction disc fixedly arranged at the bottom end of the limiting ring.

[0008] The driving assembly is arranged at the top end of the limiting frame for tapping.

[0009] Preferably, the driving assembly comprises a linear bearing fixedly arranged at the top end of the limiting frame, a tap inserted and arranged at the center of the linear bearing, a ratchet wheel fixedly arranged at the outer side of the tap, a handle movably arranged at the outer side of the tap, a ratchet fixedly arranged at the inner side of the handle, a pressure bearing fixedly arranged at the top end of the tap, a pressure sensor fixedly arranged at the top end of the pressure bearing, and an electric push rod fixedly arranged above the pressure sensor.

[0010] Preferably, the movable frame and the limiting frame are in sliding connection, the connecting rod is provided with a cylindrical structure at both sides of the upper and lower ends, the connecting rod is in rotary connection with the movable frame at the top end and in rotary connection with the limiting rod at the bottom end.

[0011] Preferably, the limiting rod is provided with a protruding structure with an arc-shaped end at one side of the bottom end, the limiting rod is in rotary connection with the transmission ring, the bottom of the transmission ring is fixedly connected with the top of the suction disc, and the suction disc is annular.

[0012] Preferably, the tap is arranged at the center of the limiting frame through the linear bearing, the handle is in rotary connection with the tap through a ball bearing, the front end of the ratchet is in meshing connection with the ratchet, and the ratchet is provided with two horizontal cylindrical protrusions at the end.

[0013] Preferably, the ratchet is in sliding connection with the handle, the tap is in rotary connection with the pressure sensor through the pressure bearing, the movable end of the electric push rod points to the tap, and the top end of the electric push rod is fixedly connected with the limiting frame.

[0014] Beneficial effects

[0015] The utility model provides a quick tapping tool with a gradually changing chip removal combined structure, which has the following beneficial effects compared with the prior art.

[0016] (1), the quick tapping tool with the combined structure of the gradually changing chip removal section, through the setting of the electric push rod, the electric push rod is used as a stable pressure source, axial pressure can be accurately applied, manual force is replaced, the pressure sensor monitors the axial pressure borne by the tap in real time, once the pressure fluctuates, feedback signals are adjusted to adjust the thrust of the electric push rod, the stability of the pressure is ensured, the pressure bearing separates the rotation of the tap from the static monitoring of the pressure sensor, so that the tap can freely rotate and the axial pressure can be effectively transmitted to the sensor, avoiding the rotation interference with the pressure monitoring, meanwhile, the linear bearing limits the tap to move only in the axial direction, avoiding pressure abnormalities caused by deviation, the handle, the ratchet and the ratchet wheel are matched, so that the rotation action and the pressure application are separated, manual force fluctuation is eliminated from the structure, and the pressure is stably controlled through the cooperation of multiple components.

[0017] (2), the quick tapping tool with the combined structure of the gradually changing chip removal section, through the setting of the suction cup, when the suction cup is attached to the working surface, a vertical reference surface is formed by negative pressure adsorption, as long as the attachment is tight, the axial direction of the tap is perpendicular to the working surface, the limiting frame is used as the "skeleton" of the tool, the suction cup is connected to the lower part and the driving assembly is fixed to the upper part, the axial direction of the tap is forced to be perpendicular to the working surface by the vertical reference of the suction cup, the angle transmission ring and the limiting ring are auxiliary connected from the structure, the adsorption stability of the suction cup is enhanced, the axial deviation of the tap is prevented through mechanical limiting, the angle limitation is further strengthened, and the angle of the tap is accurately ensured through the cooperation of multiple parts. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a connecting rod installation structure schematic view of the utility model;

[0020] Figure 3 It is a washing dish bottom surface structure schematic view of the utility model;

[0021] Figure 4 It is a tap installation structure schematic view of the utility model;

[0022] In the drawing: 1, limiting frame; 2, tapping mechanism; 21, limiting assembly; 211, movable frame; 212, connecting rod; 213, limiting rod; 214, transmission ring; 215, limiting ring; 216, suction cup; 22, driving assembly; 221, linear bearing; 222, tap; 223, ratchet wheel; 225, handle; 226, ratchet; 227, pressure bearing; 228, pressure sensor; 229, electric push rod. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to Figures 1-4 The present application provides a technical solution: a quick tapping tool with a gradually changing chip removal combined structure, comprising a limiting frame 1, and a tapping mechanism 2 arranged above the limiting frame 1.

[0025] The limiting assembly 21 comprises a movable frame 211 movably arranged below the limiting frame 1, a connecting rod 212 movably arranged below the movable frame 211, a limiting rod 213 movably arranged at the bottom end of the connecting rod 212, a transmission ring 214 movably arranged below the limiting rod 213, a limiting ring 215 inserted and arranged above the transmission ring 214, a suction cup 216 fixedly arranged at the bottom end of the limiting ring 215, and a sliding connection between the movable frame 211 and the limiting frame 1. The connecting rod 212 is provided with a cylindrical structure at both ends, and the connecting rod 212 is rotatably connected to the movable frame 211 at the top end and rotatably connected to the limiting rod 213 at the bottom end. The limiting rod 213 is provided with a protruding structure with an arc-shaped end at one side of the bottom end, and the limiting rod 213 is rotatably connected to the transmission ring 214. The transmission ring 214 is fixedly connected to the suction cup 216 at the bottom, and the suction cup 216 is annular.

[0026] Specifically, the suction cup 216 is provided with a metal frame at the center of the lip portion, and the bottom surface of the metal frame is provided with a silica gel pad. After the bottom of the suction cup 216 contacts the working surface, the movable frame 211 moves towards the suction cup 216. The movable frame 211 drives the limiting rod 213 to rotate around the hinge between the limiting rod 213 and the transmission ring 214 through the connecting rod 212, so that the protruding structure at one side of the bottom end of the limiting rod 213 contacts the limiting ring 215, and the limiting ring 215 drives the top end of the suction cup 216 to move upwards. Due to the limitation of the metal frame of the lip portion of the suction cup 216, the deformation position of the suction cup 216 is above the lip portion, so that the inside of the suction cup 216 is in a negative pressure state, and the limiting frame 1 is adsorbed to the working surface.

[0027] The driving assembly 22 is arranged at the top end of the limiting frame 1 for tapping, and the driving assembly 22 comprises a linear bearing 221 fixedly installed at the top end of the limiting frame 1, a tap 222 installed through the center of the linear bearing 221, a ratchet wheel 223 fixedly installed at the outer side of the tap 222, a handle 225 movably installed at the outer side of the tap 222, a ratchet tooth 226 movably installed in the handle 225, a pressure bearing 227 fixedly installed at the top end of the tap 222, a pressure sensor 228 fixedly installed at the top end of the pressure bearing 227, an electric push rod 229 fixedly installed above the pressure sensor 228, and the tap 222 is installed at the center of the limiting frame 1 through the linear bearing 221, the handle 225 is rotatably connected with the tap 222 through a ball bearing, the front end of the ratchet tooth 226 is engaged with the ratchet wheel 223, two horizontal columnar protrusions are arranged at the end of the ratchet tooth 226, the ratchet tooth 226 is slidably connected with the handle 225, the tap 222 is rotatably connected with the pressure sensor 228 through the pressure bearing 227, the movable end of the electric push rod 229 points to the tap 222, and the top end of the electric push rod 229 is fixedly connected with the limiting frame 1.

[0028] Specifically, the linear bearing 221 can limit the moving direction of the tap 222 while allowing the tap 222 to rotate, the tap 222 is provided with a chip removal groove between the thread structures, the chip removal groove is gradually reduced in depth above the thread structure of the tap 222 until flush with the surface of the columnar structure above the tap 222, springs are inserted outside the columnar structure on the front side of the ratchet tooth 226 and located between the ratchet tooth 226 and the internal limiting structure of the handle 225, the ratchet tooth 226 and the ratchet wheel 223 are driven between the handle 225 and the tap 222, so as to reset the handle 225 after the tap 222 is rotated by a certain angle, the pressure bearing 227 can bear axial load to avoid affecting the pressure sensor 228 above when the tap 222 rotates, the electric push rod 229 is stretched to provide stable downward pressure for the tap 222, the pressure sensor 228 monitors the pressure of the tap 222 and adjusts the elongation of the electric push rod 229 according to the pressure, so as to keep the change of the pressure of the tap 222 stable during the rotation and downward movement of the tap 222.

[0029] Specifically, the model of the pressure sensor 228 is PT500-119, and the model of the electric push rod 229 is JRZ03B, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0030] When working, first, the suction cup 216 is attached to the bottom of the workpiece surface, the movable frame 211 is pushed towards the suction cup 216, the movable frame 211 drives the limiting rod 213 to rotate around the hinge point of the transmission ring 214 through the connecting rod 212, the arc-shaped protrusion at the bottom end of the limiting rod 213 extrudes the limiting ring 215, the lip of the suction cup 216 is deformed to form negative pressure, the limiting frame 1 is firmly adsorbed on the workpiece surface to establish a vertical reference; then the electric push rod 229 is started, the movable end of the electric push rod 229 is extended, an initial axial pressure is applied to the tap 222 through the pressure bearing 227, the pressure sensor 228 monitors and feeds back data in real time, the electric push rod 229 automatically adjusts the pushing force to ensure that the initial pressure is stable; then the operator holds the handle 225 and rotates clockwise, the tap 222 is synchronously rotated through the ratchet wheel 223 driven by the ratchet 226, the linear bearing 221 ensures that the tap 222 only moves in the axial direction to maintain the vertical tapping direction, the electric push rod 229 dynamically adjusts the pushing force according to the feedback of the pressure sensor 228, compensates the pressure fluctuation caused by the change of cutting resistance, after a single rotation of the handle 225 to the limit position, the handle 225 is rotated in the reverse direction, the ratchet 226 is reset by the spring to pass the tooth surface of the ratchet wheel 223, and the handle 225 can be repeatedly rotated for continuous tapping; when the tap 222 reaches the preset depth, the pressure sensor 228 detects a sudden change in resistance, and triggers the electric push rod 229 to stop elongation, and the gradual variable section chip removal groove is used to complete chip removal.

[0031] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quick tapping tool with a chip removal combination structure with a gradually changing section, comprising a limiting frame (1), characterized in that: The upper part of the limiting frame (1) is provided with a tapping mechanism (2). The limiting assembly (21) comprises a movable frame (211) movably installed below the limiting frame (1), the lower part of the movable frame (211) is movably installed with a connecting rod (212), the bottom end of the connecting rod (212) is movably installed with a limiting rod (213), the lower part of the limiting rod (213) is movably installed with a transmission ring (214), the upper part of the transmission ring (214) is inserted and installed with a limiting ring (215), the bottom end of the limiting ring (215) is fixedly installed with a suction cup (216). The driving assembly (22) is arranged at the top end of the limiting frame (1) for tapping.

2. The quick tapping tool with a chip removal combination structure of gradually changing section according to claim 1, characterized in that: The driving assembly (22) comprises a linear bearing (221) fixedly installed at the top end of the limiting frame (1), the center of the linear bearing (221) is inserted and installed with a tap (222), the outer side of the tap (222) is fixedly installed with a ratchet wheel (223), the outer side of the tap (222) is movably installed with a handle (225), the inner part of the handle (225) is movably installed with a ratchet (226), the top end of the tap (222) is fixedly installed with a pressure bearing (227), the top end of the pressure bearing (227) is fixedly installed with a pressure sensor (228), the upper part of the pressure sensor (228) is fixedly installed with an electric push rod (229).

3. The quick tapping tool with a chip removal combination structure of gradually changing section according to claim 1, characterized in that: The movable frame (211) and the limiting frame (1) are slidably connected, the two sides of the upper and lower ends of the connecting rod (212) are provided with a cylindrical structure, the top end of the connecting rod (212) and the movable frame (211) are rotatably connected, and the bottom end and the limiting rod (213) are rotatably connected.

4. The quick tapping tool with a chip removal combination structure of gradually changing section according to claim 1, characterized in that: The bottom end of the limiting rod (213) is provided with a protruding structure with an arc-shaped end, the limiting rod (213) and the transmission ring (214) are rotatably connected, the bottom of the transmission ring (214) and the top of the suction cup (216) are fixedly connected, and the suction cup (216) is annular.

5. The quick tapping tool with the chip removal combination structure of gradually changed section according to claim 2, characterized in that: The tap (222) is installed at the center of the limiting frame (1) through the linear bearing (221), the handle (225) and the tap (222) are rotatably connected through the ball bearing, the front end of the ratchet (226) and the ratchet wheel (223) are meshed, and two horizontal cylindrical protrusions are arranged at the end of the ratchet (226).

6. The quick tapping tool with a chip removal combination structure of gradually changing section according to claim 2, characterized in that: The ratchet (226) and the handle (225) are slidably connected, the tap (222) and the pressure sensor (228) are rotatably connected through the pressure bearing (227), the movable end of the electric push rod (229) points to the tap (222), and the top end of the electric push rod (229) is fixedly connected with the limiting frame (1).

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