Tapping cutter handle capable of quantitatively spraying oil

Abstract

The utility model discloses a tapping cutter handle capable of spraying oil quantitatively. The tapping cutter handle comprises a basic cutter handle body, a tapping cutter handle body, a screw tap and an oil storage device. The basic cutter handle is provided with a first through air channel, a second through air channel of the tapping cutter handle is communicated with the first through air channel, the screw tap is connected to the tapping cutter handle, and the oil storage device is provided with an oil cavity, an oil conveying pipe and a one-way valve. In the state that gas is not introduced into the first through air channel, the air pressure in the oil cavity is slightly higher than the air pressure in the first through air channel, and part of oil in the oil cavity enters the second through air channel through the oil conveying pipe; and along with the reduction of the air pressure in the output oil cavity of the oil until the air pressure is the same as that of the first through air channel, oil transportation is stopped, gas is introduced into the first through air channel again, and the oil is atomized by the gas and brought to the position of the screw tap cutting edge.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a tapping tool holder with quantitative oil injection. Background Art

[0002] Machining internal threads (commonly known as tapping) is a common process in mechanical processing. The tool usually used is a tap. Since there is a large cutting resistance and friction between the tap and the workpiece material when cutting into the workpiece, a large amount of heat is generated, causing the tap to wear too quickly. At the same time, the accuracy of the processed internal threads is easily reduced, resulting in failure.

[0003] To protect the tap and ensure the internal thread, workers typically apply a layer of tapping oil to the tap's cutting edge before machining. During machining, the tapping oil forms an oil film between the tap and the workpiece, providing cooling and lubrication. However, existing techniques often require frequent manual application of tapping oil, increasing worker workload and posing safety risks. Furthermore, manual application makes it difficult to precisely control the amount of oil. Too little oil provides insufficient protection for the tap, while too much oil creates waste and pollutes the environment.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve one of the above technical problems, the present application provides a tapping tool holder with quantitative oil injection to solve the problem in the prior art that the amount of oil is difficult to accurately control.

[0006] This application provides the following technical solutions:

[0007] A tapping tool holder with quantitative oil injection, comprising:

[0008] A basic knife handle, wherein the basic knife handle has a first through ventilation channel;

[0009] A tapping shank connected to the basic shank, the tapping shank having a second through-air passage, the second through-air passage communicating with the first through-air passage;

[0010] a tap, the tap being connected to the tapping tool handle, the tap being located at an end of the second through-air passage facing away from the first through-air passage;

[0011] an oil storage device, the oil storage device being arranged on the basic tool holder, the oil storage device comprising an oil chamber, an oil delivery pipe, and a one-way valve communicating with the oil chamber, one end of the oil delivery pipe extending to the oil chamber and the other end extending to the second through-air duct;

[0012] When gas is introduced into the first through-ventilation passage, some gas will enter the oil chamber through the oil pipe, causing the pressure inside the oil chamber to increase. The one-way valve will exhaust gas until the pressure inside the oil chamber equals the opening pressure of the one-way valve.

[0013] When the gas supply to the first through air duct is interrupted, the air pressure in the oil chamber is slightly higher than the air pressure in the first through air duct, and part of the oil in the oil chamber enters the second through air duct through the oil pipe until the air pressure in the oil chamber is equal to the air pressure in the first through air duct.

[0014] Optionally, the oil storage device is sleeved on the basic tool handle, and the oil storage device includes an upper ring plate and a lower ring plate;

[0015] The upper ring plate and the lower ring plate are sequentially arranged along the longitudinal direction of the basic tool handle, and the upper ring plate and the lower ring plate are both sleeved on the basic tool handle, and the oil chamber is located between the upper ring plate and the lower ring plate;

[0016] The lower ring plate is provided with the mounting port, and the mounting port is connected to the oil cavity;

[0017] The one-way valve is located in the oil cavity, and the air outlet end of the one-way valve is connected to the installation port.

[0018] Optionally, the air inlet end of the one-way valve extends toward the upper ring plate, and the air inlet end of the one-way valve is higher than the oil in the oil chamber.

[0019] Optionally, an oil filling port is provided on the lower ring plate;

[0020] The plug body is detachably connected to the oil filling port.

[0021] Optionally, the oil storage device includes an inner cylinder and an outer cylinder;

[0022] The inner cylinder includes a cylindrical wall and an upper ring plate, wherein the upper ring plate is connected to the upper edge of the cylindrical wall, and the cylindrical wall is sleeved on the basic knife handle;

[0023] The lower ring plate has a central threaded hole and an annular groove located outside the central threaded hole. The lower edge of the cylindrical wall is threadedly connected to the central threaded hole, and the outer cylinder is inserted into the annular groove.

[0024] The outer cylinder is sealed and connected to the upper ring plate and the lower ring plate respectively;

[0025] The upper ring plate, the lower ring plate, the cylindrical wall and the outer cylinder together form the oil chamber.

[0026] Optionally, the basic tool handle has a first communication hole connected to the first through-air passage, and the tapping tool handle has a second communication hole connected to the second through-air passage;

[0027] The tapping tool handle is partially inserted into the first through-air duct;

[0028] The oil delivery pipe passes through the first communicating hole and the second communicating hole in sequence and then extends to the second through air duct.

[0029] Optionally, the tapping tool holder for quantitative oil injection includes a first side fixing screw, and the first side fixing screw is provided with a first pipe hole;

[0030] The first side fixing screw is threadedly connected to the first communicating hole and abuts against the tapping handle;

[0031] The oil delivery pipe is arranged to pass through the first pipe hole.

[0032] Optionally, the tapping tool holder for quantitative oil injection includes a sleeve;

[0033] The oil storage device has a second through-tube hole communicating with the oil chamber;

[0034] The sleeve is sleeved on the oil pipeline, and the sleeve is located between the oil pipeline and the inner wall of the second pipe hole.

[0035] Optionally, the tapping tool holder for quantitative oil injection includes a second side fixing screw;

[0036] The basic knife handle has a third connecting hole connected to the first through-air passage;

[0037] The oil storage device has a fourth communication hole communicating with the oil chamber;

[0038] The second side fixing screw is passed through the third communicating hole and the fourth communicating hole, and the second side fixing screw abuts against the tapping tool handle.

[0039] Optionally, the tapping tool holder for quantitative oil injection includes a tap sleeve and a tool holder nut;

[0040] The tap sleeve is sleeved on the tap, and the tap sleeve is partially plugged into the second through-air duct;

[0041] The shank nut is sleeved on the tap sleeve, and the shank nut is threadedly connected to the tapping shank to lock the tap sleeve;

[0042] Wherein, a slit groove communicating with the second through-air duct is provided on the tap sleeve.

[0043] Compared with the prior art, the present invention has the following advantages:

[0044] The tapping tool holder with quantitative oil injection in this application is equipped with an oil storage device that automatically sprays oil onto the tap cutting edge or the thread bottom hole on the workpiece, cooling and lubricating the tap and the thread bottom hole, thereby extending the service life of the tap and improving the thread processing qualification rate. The tapping tool holder in this application can automatically apply quantitative oil, and the oil injection amount is precisely controllable, extending the service life of the tap and improving the thread processing qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0046] Figure 1 A diagram showing the state of the tapping tool holder with quantitative oil injection provided by an embodiment of the present application when gas is first introduced;

[0047] Figure 2 A diagram showing a state in which the gas supply to the tapping tool holder for quantitative oil injection provided by an embodiment of the present application is stopped;

[0048] Figure 3 A diagram showing a state in which gas is introduced into the tapping tool holder with quantitative oil injection provided by an embodiment of the present application again;

[0049] Figure 4 A schematic diagram showing the matching structure of a basic tool holder, an oil delivery pipe, a first side fixing screw, and a second side fixing screw for a tapping tool holder for quantitative oil injection provided in an embodiment of the present application is shown;

[0050] Figure 5 An exploded view of an oil storage device of a tapping tool holder with quantitative oil injection provided in an embodiment of the present application is shown;

[0051] Figure 6 A schematic diagram showing the matching structure of a tapping shank, a tap collet, and a shank nut of a tapping shank with quantitative oil injection provided in an embodiment of the present application is shown;

[0052] Figure 7 A schematic diagram showing a tap with an automatic oil-spraying tapping tool holder provided in an embodiment of the present application machining a threaded bottom hole into an internal thread on a workpiece.

[0053] In the figure, 1. basic tool holder; 11. first connecting hole; 12. third connecting hole; 13. first through-air duct; 2. tapping tool holder; 21. second connecting hole; 22. second through-air duct; 3. tap; 4. oil storage device; 41. inner cylinder; 411. cylindrical wall; 4111. fourth connecting hole; 4112. second through-tube hole; 412. upper ring plate; 413. external thread; 42. outer cylinder; 43. lower ring plate; 431. mounting port; 432. oil filling port; 433. center threaded hole; 44. oil delivery pipe; 45. plug body; 46. sleeve; 47. one-way valve; 5. tap sleeve; 6. tool holder nut; 7. first side fixing screw; 8. second side fixing screw; 9. workpiece; 91. threaded bottom hole; 92. internal thread; a. annular groove. DETAILED DESCRIPTION

[0054] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are part of the embodiments of the present disclosure, not all of them. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0055] The specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0056] In the above description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0057] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0058] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0059] See also Figures 1 to 7As shown, an embodiment of the present application provides a tapping tool holder with quantitative oil injection, comprising: a base tool holder 1, a tapping tool holder 2, a tap 3, and an oil storage device 4. The base tool holder 1 has a first through-air duct 13, the tapping tool holder 2 is connected to the base tool holder 1, and the tapping tool holder 2 has a second through-air duct 22, which communicates with the first through-air duct 13. The tap 3 is connected to the tapping tool holder 2, and the tap 3 is located at the end of the second through-air duct 22 that is away from the first through-air duct 13. The oil storage device 4 is provided on the base tool holder 1 and / or the tapping tool holder 2, and has an oil chamber, an oil delivery pipe 44, and a one-way valve 47 connected to the oil chamber. The oil delivery pipe 44 extends from one end to the oil chamber to the other end to the second through-air duct 22. When gas is flowing into the first through-air passage 13, some gas flows through the oil delivery pipe into the oil chamber, increasing the pressure in the oil chamber. The one-way valve 47 then releases gas until the pressure in the oil chamber equals the opening pressure of the one-way valve 47, which is slightly above standard atmospheric pressure. When gas flow to the first through-air passage 13 is interrupted, the pressure in the oil chamber (the opening pressure of the one-way valve 47) exceeds the pressure in the first through-air passage 13 (i.e., standard atmospheric pressure). Some of the oil in the oil chamber flows through the oil delivery pipe 44 into the second through-air passage 22 until the pressure in the oil chamber equals the pressure in the first through-air passage 13 (or the second through-air passage). Because the opening pressure of the one-way valve 47 is constant, the amount of oil discharged from the oil delivery pipe 44 to the second through-air passage 22 remains constant each time gas flow to the first through-air passage 13 is interrupted.

[0060] The automatic oil-spraying tapping toolholder of the present application is provided with an oil reservoir 4 that automatically sprays oil onto the cutting edge of the tap 3 or the threaded bottom hole 91 on the workpiece 9, cooling and lubricating the tap 3 and the threaded bottom hole 91, allowing the tap 3 to smoothly machine an internal thread 92 in the threaded bottom hole 91. By providing cooling and lubrication to the tapping area, the service life of the tap 3 is increased and the pass rate of the machined internal thread 92 is ensured.

[0061] In some possible embodiments, combined Figure 1 and Figure 5 As shown, the oil storage device 4 is sleeved on the basic knife handle 1, and the oil storage device 4 includes an upper ring plate 412 and a lower ring plate 43. The upper ring plate 412 and the lower ring plate 43 are arranged in sequence along the longitudinal direction of the basic knife handle 1, and the upper ring plate and the lower ring plate are both sleeved on the basic knife handle. The oil chamber is located between the upper ring plate 412 and the lower ring plate 43. The mounting port 431 is provided on the lower ring plate 43. The mounting port 431 is connected to the oil chamber. The one-way valve 47 is located in the oil chamber, and the air outlet end of the one-way valve 47 is connected to the mounting port 431.

[0062] Optionally, the air inlet end of the one-way valve 47 extends toward the upper ring plate 412 , and the air inlet end (top end) of the one-way valve 47 is higher than the oil in the oil chamber, thereby preventing the oil from being discharged from the one-way valve 47 , so that only gas is discharged from the oil chamber.

[0063] In some possible implementations, the lower ring plate 43 is provided with an oil filling port 432, and the plug body 45 is detachably connected to the oil filling port 432. The oil filling port 432 can be provided to inject new oil into the oil cavity when the oil in the oil cavity is exhausted or insufficient.

[0064] In some possible embodiments, the oil storage device 4 includes an inner cylinder 41 and an outer cylinder 42. The inner cylinder 41 includes a cylindrical wall 411 and an upper ring plate 412. The upper ring plate 412 is connected to the upper edge of the cylindrical wall 411. The cylindrical wall 411 is sleeved on the basic tool holder 1. The lower ring plate 43 has a central threaded hole 433 and an annular groove a located outside the central threaded hole 433. The lower edge of the cylindrical wall is provided with an external thread 413 for threaded connection with the central threaded hole 433. The lower edge of the outer cylinder is inserted into the annular groove a on the lower ring plate 43. The upper ring plate 412 may also be provided with an annular groove a, and the outer cylinder can be inserted into the annular groove a on the upper ring plate 412. The outer cylinder 42 is respectively connected and sealed to the upper ring plate 412 and the lower ring plate 43. The upper ring plate 412, the lower ring plate 43, the cylindrical wall 411, and the outer cylinder 42 enclose the oil chamber. The outer cylinder 42 may be an acrylic shell with a transparent structure, which enables visualization of the oil storage device 4 and facilitates observation of oil consumption.

[0065] In some possible embodiments, the basic tool handle 1 has a first connecting hole 11 connected to the first through-air duct 13, and the tapping tool handle 2 has a second connecting hole 21 connected to the second through-air duct. The tapping tool handle 2 is partially inserted into the first through-air duct 13, and the oil pipe 44 passes through the first connecting hole 11 and the second connecting hole 21 in sequence and then extends to the second through-air duct 22.

[0066] The tapping shank for quantitative oil injection includes a first side fixing screw 7 with a first pipe hole. The first side fixing screw 7 is threadedly connected to the first connecting hole 11 and abuts against the tapping shank 2. The outer diameter of the first side fixing screw 7 is larger than the second connecting hole 21. The oil pipeline 44 is installed through the first pipe hole. The first side fixing screw 7 is used to tighten the tapping shank 2 and also allows the oil pipeline 44 to pass through.

[0067] In some possible embodiments, the tapping tool holder for quantitative oil injection includes a sleeve 46. The oil storage device 4 has a second through-hole 4112 communicating with the oil chamber. The second through-hole 4112 can be provided on the cylindrical wall 411. The sleeve 46 is sleeved on the oil delivery pipe 44 and is located between the oil delivery pipe 44 and the inner wall of the second through-hole 4112. The sleeve 46 can be elastic and can clamp the oil delivery pipe 44 to the second through-hole 4112.

[0068] In some possible implementations, a tapping shank for quantitative oil injection includes a second side fixing screw 8. The base shank 1 has a third connecting hole 12 connected to the first through-air duct 13. The oil reservoir 4 has a fourth connecting hole 4111 connected to the oil chamber. The second side fixing screw 8 is inserted through the third connecting hole 12 and the fourth connecting hole 4111, and abuts against the tapping shank 2. The second side fixing screw 8 is longer than the first side fixing screw 7 and is used to compress the tapping shank 2 while also securing the oil reservoir 4.

[0069] In some possible implementations, a tapping tool holder for metered oil injection includes a tap collet 5 and a shank nut 6. The tap collet 5 is sleeved onto the tap 3 and partially inserted into the second through-air passage 22. The shank nut 6 is sleeved onto the tap collet 5 and threadedly connected to the tapping tool holder 2 to secure the tap collet 5. A slit groove is provided in the tap collet 5, connecting to the second through-air passage 22. The inner diameter of the second through-air passage 22 is smaller than that of the first through-air passage 13, forming a reduced diameter portion between the two.

[0070] The airflow entering the first through-air passage 13 increases in velocity as it passes through the reduced diameter section. This rapid flow atomizes the oil entering the inner wall of the second through-air passage 22 via the oil delivery pipe 44. The oil mist is carried directly through the slits in the tap jacket 5 and onto the tap 3, providing smooth and protective operation. A portion of the airflow enters the oil chamber through the oil delivery pipe 44, causing the pressure within the oil chamber to rise above atmospheric pressure. The check valve 47 can expel a large amount of gas, reducing the pressure within the oil chamber until it reaches the opening pressure of the check valve 47. When air flow to the first through-air passage 13 is interrupted, the pressure within the oil chamber (the opening pressure of the check valve 47) rises above the pressure within the first through-air passage 13 (i.e., atmospheric pressure). Some of the oil in the oil chamber then flows through the oil delivery pipe 44 into the second through-air passage 22 until the pressure within the oil chamber equals that within the first through-air passage 13. In the subsequent control process, the above steps are repeated so that oil mist is blown toward the tap 3 each time air is blown.

[0071] Although this specification has shown and described a number of embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Those skilled in the art will conceive of many modifications, changes, and alternatives without departing from the ideas and spirit of the present invention. It should be understood that in practicing the present invention, various alternatives to the embodiments of the present invention described herein may be adopted. The appended claims are intended to define the scope of protection of the present invention and therefore cover modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A tapping tool handle with quantitative oil injection, characterized in that: include: A basic knife handle, wherein the basic knife handle has a first through ventilation channel; A tapping shank connected to the basic shank, the tapping shank having a second through-air passage, the second through-air passage communicating with the first through-air passage; a tap, the tap being connected to the tapping tool handle, the tap being located at an end of the second through-air passage facing away from the first through-air passage; An oil storage device is provided on the basic tool handle, and comprises an oil chamber, an oil delivery pipe, and a one-way valve connected to the oil chamber, wherein one end of the oil delivery pipe extends to the oil chamber, and the other end extends to the second through-air duct; When gas is introduced into the first through-ventilation passage, some gas will enter the oil chamber through the oil pipe, causing the pressure inside the oil chamber to increase. The one-way valve will exhaust gas until the pressure inside the oil chamber equals the opening pressure of the one-way valve. When the gas supply to the first through air duct is interrupted, the air pressure in the oil chamber is slightly higher than the air pressure in the first through air duct, and part of the oil in the oil chamber enters the second through air duct through the oil pipe until the air pressure in the oil chamber is equal to the air pressure in the first through air duct.

2. The tapping tool handle with quantitative oil injection according to claim 1, characterized in that: The oil storage device is sleeved on the basic tool handle, and the oil storage device includes an upper ring plate and a lower ring plate; The upper ring plate and the lower ring plate are sequentially arranged along the longitudinal direction of the basic tool handle, and the upper ring plate and the lower ring plate are both sleeved on the basic tool handle, and the oil chamber is located between the upper ring plate and the lower ring plate; The lower ring plate is provided with a mounting port, the mounting port being connected to the oil cavity; The one-way valve is located in the oil cavity, and the air outlet end of the one-way valve is connected to the installation port.

3. The tapping tool handle with quantitative oil injection according to claim 2, characterized in that: The air inlet end of the one-way valve extends toward the upper ring plate, and the air inlet end of the one-way valve is higher than the oil in the oil chamber.

4. The tapping tool handle with quantitative oil injection according to claim 2, characterized in that: The lower ring plate is provided with an oil filling port; The plug body is detachably connected to the oil filling port.

5. The tapping tool handle with quantitative oil injection according to claim 2, characterized in that: The oil storage device includes an inner cylinder and an outer cylinder; The inner cylinder includes a cylindrical wall and an upper ring plate, wherein the upper ring plate is connected to the upper edge of the cylindrical wall, and the cylindrical wall is sleeved on the basic knife handle; The lower ring plate has a central threaded hole and an annular groove located outside the central threaded hole. The lower edge of the cylindrical wall is threadedly connected to the central threaded hole, and the outer cylinder is inserted into the annular groove. The outer cylinder is sealed and connected to the upper ring plate and the lower ring plate respectively; The upper ring plate, the lower ring plate, the cylindrical wall and the outer cylinder together form the oil chamber.

6. The tapping tool handle with quantitative oil injection according to claim 2, characterized in that: The basic tool handle has a first communication hole connected to the first through-air passage, and the tapping tool handle has a second communication hole connected to the second through-air passage; The tapping tool handle is partially inserted into the first through-air duct; The oil delivery pipe passes through the first communicating hole and the second communicating hole in sequence and then extends to the second through air duct.

7. The tapping tool handle with quantitative oil injection according to claim 6, characterized in that: It includes a first side fixing screw, wherein the first side fixing screw is provided with a first pipe penetration hole; The first side fixing screw is threadedly connected to the first communicating hole and abuts against the tapping handle; The oil delivery pipe is arranged to pass through the first pipe hole.

8. The tapping tool handle with quantitative oil injection according to claim 7, characterized in that: Including casing; The oil storage device has a second through-tube hole communicating with the oil chamber; The sleeve is sleeved on the oil pipeline, and the sleeve is located between the oil pipeline and the inner wall of the second pipe hole.

9. The tapping tool handle with quantitative oil injection according to claim 7, characterized in that: Includes second side retaining screw; The basic knife handle has a third connecting hole connected to the first through-air passage; The oil storage device has a fourth communication hole communicating with the oil chamber; The second side fixing screw is passed through the third communicating hole and the fourth communicating hole, and the second side fixing screw abuts against the tapping tool handle.

10. The tapping tool handle with quantitative oil injection according to any one of claims 1 to 9, characterized in that: Includes tap collet and shank nut; The tap sleeve is sleeved on the tap, and the tap sleeve is partially plugged into the second through-air duct; The shank nut is sleeved on the tap sleeve, and the shank nut is threadedly connected to the tapping shank to lock the tap sleeve; Wherein, a slit groove communicating with the second through-air duct is provided on the tap sleeve.

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