A positive and negative boring tool

Abstract

The present invention relates to a positive and negative boring tool, belonging to the technical field of tools for machine tools. The positive and negative boring tool comprises a tool handle, a first tool body and a second tool body are protrudingly arranged on one side of the tool handle, the first tool body and the second tool body are arranged at intervals along the axial direction of the tool handle, an avoidance groove for avoiding an annular boss is provided between the first tool body and the second tool body, the first tool body has a first blade for processing a first surface to be processed, and the second tool body has a second blade for processing a second surface to be processed; in the axial direction of the tool handle, the first blade and the second blade are located on opposite sides of the two blades, the first blade is located in the avoidance groove or arranged flush with the avoidance groove, and the second blade is located in the avoidance groove.

Description

Technical Field

[0001] The invention relates to a forward and reverse boring tool, belonging to the technical field of tools used for machine tools. Background Art

[0002] Two adjacent high-voltage switches in electrical equipment need to be Figures 1 to 3 The electrical connector 1 shown is connected. A center hole 2 is provided in the electrical connector 1, and an annular boss 3 protruding inward is provided in the center hole 2. During processing, the first surface to be processed 5 and the second surface to be processed 6 need to be bored, and the first surface to be processed 5 and the second surface to be processed 6 are respectively arranged on both sides of the annular boss 3. The first surface to be processed 5 is the inner wall surface of the center hole 2, and the second surface to be processed 6 is the inner groove wall surface of the end surface groove 4 on one side of the annular boss 3. The first surface to be processed 5 extends to the annular boss 3, and the second surface to be processed 6 is located in the annular boss 3. During processing, since there is a diameter difference between the first surface to be processed 5, the second surface to be processed 6 and the adjacent surface, both the first surface to be processed 5 and the second surface to be processed 6 need the tool to be fed from a position away from the annular boss 3 toward the annular boss 3 to complete. According to the processing standard, the coaxiality requirements of the first surface to be processed 5 and the second surface to be processed 6 are relatively high.

[0003] Since the outer dimensions of the electrical connector 1 are irregular, if the electrical connector 1 is clamped and rotated and the boring tool is fed to process the two surfaces to be processed, on the one hand, the electrical connector is not easy to clamp; on the other hand, the electrical connector is not a standard rotating body and is prone to shaking when rotating, and the processing accuracy cannot be guaranteed. Therefore, the electrical connector needs to be processed by a horizontal machining center, and the electrical connector is fixed on the fixture of the horizontal machining center, and the processing is completed by feeding and rotating the boring tool. However, the current boring tool includes a tool handle and a single tool body set on the tool handle. Since the electrical connector has two surfaces to be processed, and the feeding directions when processing the two surfaces to be processed are opposite, two boring tools are required to enter the electrical connector from two directions respectively during processing; or one boring tool is used to process one of the surfaces to be processed, and then it moves radially along the electrical connector and crosses the annular boss axially, and then moves radially, and then feeds axially. When two boring tools are used, the centers of the two boring tools cannot be guaranteed to be coaxial; when one boring tool is used, the axis of the boring tool needs to be translated during use, and it cannot be guaranteed that the axis of the boring tool remains unchanged before and after the translation. No matter which method is used, the coaxiality requirements of the first and second processing surfaces cannot be guaranteed, resulting in unqualified products. Summary of the invention

[0004] The purpose of the present invention is to provide a forward and reverse boring tool to solve the technical problem that the processing method of the prior art cannot ensure the coaxiality of the surfaces to be processed on both sides.

[0005] To achieve the above-mentioned purpose, the technical solution of the forward and reverse boring tool provided by the present invention is: a forward and reverse boring tool, including a tool handle, a first tool body and a second tool body are protrudingly arranged on one side of the tool handle, the first tool body and the second tool body are arranged at intervals along the axial direction of the tool handle, and an avoidance groove for avoiding the annular boss is provided between the first tool body and the second tool body, the first tool body has a first blade for processing a first surface to be processed, and the second tool body has a second blade for processing a second surface to be processed; in the axial direction of the tool handle, the first blade and the second blade are located on opposite sides of the two blade bodies, the first blade is located in the avoidance groove or is arranged flush with the avoidance groove, and the second blade is located in the avoidance groove.

[0006] Beneficial effects: The first tool body and the second tool body are arranged on the same tool handle, and there is an avoidance groove between the two. When in use, they can be placed on both sides of the annular boss. Before the first surface to be processed and the second surface to be processed are processed, the positive and negative boring tools do not need to move in the radial direction of the tool handle, so as to avoid the situation where the axis cannot be guaranteed to coincide after movement, and ensure the coaxiality between the first surface to be processed and the second surface to be processed. The first blade is located in the avoidance groove or arranged flush with the avoidance groove, which can ensure that when the first blade moves axially to the end, there will be no hard collision between the annular boss and the groove wall of the avoidance groove, avoiding damage to the positive and negative boring tools and electrical connectors. The second blade is located in the avoidance groove and can extend into the interior of the end face groove of the annular boss to process the second surface to be processed, avoiding interference between the annular boss and the avoidance groove.

[0007] Preferably, a blade mounting seat is provided on one side of the tool handle, and the avoidance groove is provided on the blade mounting seat; at least one of the first blade and the second blade can be adjustably mounted in the blade mounting seat to form an adjustable blade, and the blade of the adjustable blade can be movably adjusted in the radial direction of the tool handle. The adjustable blade can change the radial position of the blade, and is suitable for different processing requirements.

[0008] Preferably, the blade mounting seat is provided with an adjustable blade mounting hole, the adjustable blade is movably mounted in the adjustable blade mounting hole, and the blade mounting seat is also provided with a top screw for locking the adjustable blade after the adjustable blade is adjusted into place. The adjustable blade is assembled by sliding and tightened by a top screw, which can achieve stepless adjustment, and the adjustment method is simple and easy to operate.

[0009] Preferably, at least two top screws are arranged in sequence and at intervals along the movable direction of the adjustable knife body.

[0010] Preferably, the adjustable knife body is provided with a tightening plane matched with the top screw, and the tightening plane can improve the tightening effect between the top screw and the adjustable knife body.

[0011] Preferably, the adjustable cutter body is a cylindrical cutter body, which is convenient for processing and also convenient for processing the mounting hole of the adjustable cutter body.

[0012] Preferably, the blade mounting seat includes a main body part and a blade mounting part, and the adjustable blade is fixedly mounted on the blade mounting part; in the axial direction of the blade handle, the middle position of the blade mounting part is fixedly connected to the main body part, and the two end positions are spaced apart from the main body part in the radial direction of the blade handle; the two end positions of the blade mounting part are both installed with top screws pressed against the main body part, and the top screws at the two end positions can be rotated to drive the blade mounting part to swing along the radial direction of the blade handle, thereby adjusting the blade position of the adjustable blade. The blade mounting part is only connected to the main body in the middle, and the blade mounting part can be driven to swing to a certain extent in the radial direction by rotating the top screw, thereby changing the radial position of the blade.

[0013] Preferably, the cutter body mounting part and the adjustable cutter body are both provided with mounting holes, and the front and back boring tools include bolts for fixing the adjustable cutter body on the cutter body mounting part. The adjustable cutter body and the cutter body mounting part are detachable and can be easily replaced.

[0014] Preferably, the adjustable blade body is a sheet-shaped blade body.

[0015] Preferably, at least one of the first tool body and the second tool body is provided with a cutting surface perpendicular to the axial direction of the tool handle, the cutting surface is used to process the axial end face of the annular boss, and the blade of the corresponding tool body is provided on the cutting surface. The cutting surface can process the axial end face of the annular boss, thereby avoiding the generation of a contact mark between the corresponding surface to be processed and the axial end face. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of the electrical connector;

[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0019] Figure 4 It is a three-dimensional diagram of the front and back boring tool of the present invention;

[0020] Figure 5 It is a front view of the front and back boring tool of the present invention;

[0021] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0022] Figure 7 for Figure 5 The enlarged view of point D in the middle;

[0023] Figure 8 for Figure 4 and Figure 5 Schematic diagram of the structure of the first blade body.

[0024] Description of reference numerals:

[0025] 1. Electrical connector; 2. Center hole; 3. Annular boss; 4. End face groove; 5. First surface to be processed; 6. Second surface to be processed; 101. Tool handle; 102. Tool body mounting seat; 103. Avoidance groove; 104. Main body; 105. Tool body mounting part; 106. First tool body; 107. Second tool body; 108. Top screw through hole; 109. First blade; 110. Cutting surface; 111. Top screw; 112. Second blade; 113. Tightening plane. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that relational terms such as "first" and "second" that may appear are only used 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, terms such as "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, elements defined by the sentence "including a...", etc., do not exclude the process or method that includes the elements.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The present invention is described in further detail below in conjunction with embodiments.

[0032] The specific embodiment of the positive and negative boring tool provided by the present invention is as follows:

[0033] The forward and reverse boring tool is equipped with two tool bodies on a tool handle, and there is an avoidance groove between the two tool bodies, so that the two tool bodies can be placed on both sides of the annular boss when in use. The blade on the first tool body is located in the avoidance groove or flush with the avoidance groove, and can process the first surface to be processed. The blade on the second tool body is located in the avoidance groove, and can process the second surface to be processed.

[0034] like Figures 4 to 8 As shown, the forward and reverse boring tool includes a handle 101, which is connected to a rotary power source when in use and rotates around its own handle 101, and the handle 101 is a circular shaft. A tool body mounting seat 102 is protruding from one side of the tool handle 101, wherein the tool body mounting seat 102 and the tool handle 101 can be processed as one piece, or can be welded separately or fixedly connected in other ways. An avoidance groove 103 is provided on the tool body mounting seat 102, and the function of the avoidance groove 103 is to avoid the annular boss of the electrical connector. A first tool body 106 and a second tool body 107 are installed on the tool body mounting seat 102, and the first tool body 106 and the second tool body 107 are respectively arranged on both sides of the avoidance groove 103.

[0035] The structure of the first blade body 106 is as follows Figure 5 , Figure 6 and Figure 8As shown, the first tool body 106 is a cylindrical tool body as a whole, and a first blade 109 is provided at one end of the first tool body 106. The first blade 109 is located in the avoidance groove 103, so as to ensure that when the first blade 109 processes the first surface to be processed, the groove wall of the avoidance groove 103 will not hit the annular boss. A cutting surface 110 is also provided at this end of the first tool body 106, and the first blade 109 is located at one end of the cutting surface 110. The function of the cutting surface 110 is to process the end face of the annular boss that intersects with the first surface to be processed, so as to avoid the generation of a cutting mark at the intersection position with the annular boss due to the processing of the first surface to be processed.

[0036] The first blade 106 is positionally adjustable and mounted on the blade mounting seat 102, and the positions of the first blade 109 and the cutting surface 110 in the radial direction of the shank 101 can be changed. Specifically, a blade mounting hole (not shown in the figure) is provided on the blade mounting seat 102, and the axis of the blade mounting hole is arranged at an acute angle to the axis of the shank 101. The first blade 106 is inserted into the blade mounting hole and can be moved and adjusted along the blade mounting hole. Three top screw through holes 108 are provided on the hole wall of the blade mounting hole, and the three top screw through holes 108 are arranged in sequence along the blade mounting hole. A top screw 111 is installed in each top screw through hole 108, and the first blade 106 is tightened by the top screw 111 after the first blade 106 is adjusted into place. In other embodiments, the number of top screws can be increased or decreased as needed. In order to cooperate with the top screw 111, a tightening plane 113 is provided on the side of the first blade 106.

[0037] The structure of the second blade body 107 is as follows Figure 4 , Figure 5 and Figure 7 As shown, the second blade 107 is a sheet structure, and mounting holes are provided on the second blade 107 and the blade mounting seat 102. The second blade 107 is fixedly mounted on the blade mounting seat 102 by bolts. The second blade 107 has a second blade 112, and the second blade 112 is located in the avoidance groove 103. The second blade 112 can process the second surface to be processed. The position of the second blade 112 in the second blade 107 in the radial direction of the handle 101 is adjustable, so as to meet the requirements of different sizes.

[0038] The blade mounting seat includes a main body 104 and a blade mounting portion 105, and the second blade 107 is fixedly mounted on the blade mounting portion 105. There is a radial interval between the axial ends of the blade mounting portion 105 and the main body 104, and the middle position of the blade mounting portion 105 is integrally formed with the main body 104. When the axial ends of the blade mounting portion 105 are subjected to a top pressure, the blade mounting portion 105 can have a certain inclination in the radial direction, thereby driving the second blade 107 to move. The axial ends of the blade mounting portion 105 are respectively provided with a top screw through hole 108, and a top screw 111 is inserted into the top screw through hole 108. The top screw 111 presses on the main body 104. When in use, the blade mounting portion 105 is driven to tilt by changing the screwing in and out of the top screw 111.

[0039] The use process of the present invention is as follows: according to the processing requirements of the first and second surfaces to be processed, the positions of the first and second tool bodies 106 and 107 are adjusted, the tool handle 101 is installed on the spindle of the horizontal machining center, and the positive and negative boring tools are first driven to move along the radial direction of the tool handle 101, and then the end with the larger opening in the center hole of the electrical connector enters the center hole of the electrical connector, and the first and second tool bodies 106 and 107 are placed on both sides of the annular boss, and then move in the opposite direction along the radial direction of the tool handle 101, and then drive the positive and negative boring tools to move forward and backward along the axial direction of the tool handle 101 to complete the processing of the two surfaces to be processed. When processing the first surface to be processed, feed more in the axial direction so that the cutting surface 110 processes the end surface of the annular boss to avoid the occurrence of tool marks.

[0040] In this embodiment, the blades in both the first blade body 106 and the second blade body 107 can be adjusted radially along the blade handle 101. The first blade body 106 and the second blade body 107 are both adjustable blade bodies, and the blade body mounting hole for mounting the first blade body 106 is an adjustable blade body mounting hole.

[0041] In this embodiment, the first blade 106 has a cutting surface 110, and the cutting surface 110 is perpendicular to the axial direction of the blade handle 101. In other embodiments, the second blade has a cutting surface; or, both the first blade and the second blade have a cutting surface, or neither of them is provided with a cutting surface.

[0042] In this embodiment, the second blade 107 is an adjustable blade, the second blade 107 is a sheet-shaped blade, and the second blade 107 is fixed to the blade mounting portion 105 by bolts. In other embodiments, in order to increase the connection strength between the second blade and the blade mounting portion, the second blade can be directly welded to the blade mounting portion. In other embodiments, the shape of the second blade can be changed, such as a columnar blade, etc., as long as there is a blade that can process the second surface to be processed.

[0043] In the present embodiment, the first knife body 106 is an adjustable knife body, the first knife body 106 is a cylindrical knife body, the knife body mounting seat 102 is provided with an adjustable knife body mounting hole, the first knife body 106 is adjustably assembled in the adjustable knife body mounting hole, and is tightened by a top screw 111, and a top tightening plane 113 is provided on the first knife body 106 to cooperate with the top screw 111. In other embodiments, the shape of the first knife body can be changed, such as a hexagonal prism or a sheet, etc., and correspondingly, the shape of the adjustable knife body mounting hole is changed. In other embodiments, even if the first knife body is still a cylindrical knife body, the top tightening plane can be cancelled, and the top screw can be directly pressed on the circular outer peripheral surface.

[0044] In this embodiment, the first blade body 106 is slidably assembled on the blade body mounting seat 102, and is tightened with a top screw 111 after being adjusted into place. The blade body mounting seat 102 includes a main body 104 and a blade body mounting portion 105, and the blade body mounting portion 105 adjusts the radial position of the second blade 112 in the second blade body 107 through the top screws 111 at both ends. In other embodiments, the adjustable modes of the first blade body and the second blade body can be interchangeable. In other embodiments, only one of the first blade body and the second blade body can be adjustable, and the other can be fixed and non-adjustable. Alternatively, in other embodiments, both are non-adjustable, in which case the blade body mounting seat can be cancelled, and the first blade body and the second blade body can be directly mounted on the handle.

[0045] In this embodiment, the first blade 109 of the first blade body 106 is located in the avoidance groove 103, and the annular boss is prevented from interfering with the groove wall of the avoidance groove 103. In other embodiments, in extreme cases, the first blade can be arranged flush with one side groove wall of the avoidance groove, that is, when the first blade is fed to the extreme position, the side groove wall of the avoidance groove just contacts with the annular boss but does not collide.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forward and reverse boring tool, comprising a tool handle, characterized in that: A first blade and a second blade are protrudingly arranged on one side of the blade handle, and the first blade and the second blade are arranged at intervals along the axial direction of the blade handle, and an avoidance groove for avoiding the annular boss is provided between the first blade body and the second blade body, the first blade body has a first blade for processing a first surface to be processed, and the second blade body has a second blade for processing a second surface to be processed; in the axial direction of the blade handle, the first blade and the second blade are located on opposite sides of the two blade bodies, the first blade is located in the avoidance groove or is arranged flush with the avoidance groove, and the second blade is located in the avoidance groove, and a blade body mounting seat is provided on one side of the blade handle, and the avoidance groove is provided on the blade body mounting seat; at least one of the first blade body and the second blade body can be adjustably assembled in the blade body mounting seat to form an adjustable blade body, and the blade of the adjustable blade body can be movably adjusted in the radial direction of the blade handle, and at least one of the first blade body and the second blade body is provided with a cutting surface perpendicular to the axial direction of the blade handle, and the cutting surface is used to process the axial end face of the annular boss, and the blade of the corresponding blade body is provided on the cutting surface.

2. The forward and reverse boring tool according to claim 1, characterized in that: The knife body mounting seat is provided with an adjustable knife body mounting hole, the adjustable knife body is movably assembled in the adjustable knife body mounting hole, and the knife body mounting seat is also provided with a top screw for locking the adjustable knife body after the adjustable knife body is adjusted into place.

3. The forward and reverse boring tool according to claim 2, characterized in that: At least two top screws are arranged in sequence and at intervals along the moving direction of the adjustable knife body.

4. The forward and reverse boring tool according to claim 3, characterized in that: The adjustable knife body is provided with a tightening plane matched with the top screw.

5. The forward and reverse boring tool according to claim 2, 3 or 4, characterized in that: The adjustable knife body is a cylindrical knife body.

6. The forward and reverse boring tool according to claim 1, characterized in that: The knife body mounting seat comprises a main body part and a knife body mounting part, and the adjustable knife body is fixedly arranged on the knife body mounting part; in the axial direction of the knife handle, the middle position of the knife body mounting part is fixedly connected to the main body part, and the two end positions are spaced apart from the main body part in the radial direction of the knife handle; the two end positions of the knife body mounting part are both equipped with top screws that press against the main body part, and by rotating the top screws at the two end positions, the knife body mounting part can be driven to swing along the radial direction of the knife handle, thereby adjusting the blade position of the adjustable knife body.

7. The forward and reverse boring tool according to claim 6, characterized in that: The cutter body mounting part and the adjustable cutter body are both provided with mounting holes, and the forward and reverse boring tool comprises bolts for fixing the adjustable cutter body on the cutter body mounting part.

8. The forward and reverse boring tool according to claim 7, characterized in that: The adjustable knife body is a sheet-shaped knife body.

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