Cutter bar assembly for boring inner hole groove

Abstract

The utility model belongs to the technical field of lathes, and particularly relates to a cutter bar assembly for boring an inner hole groove. The boring cutter comprises a cutter bar which is a hollow pipe, a fixing seat is arranged at one end of the cutter bar, a guide sleeve is arranged at the other end of the cutter bar, a vertical cutter groove is formed in the front end of the guide sleeve, and a boring cutter block is contained in the cutter groove; the push rod extends into the cutter bar, one end of the push rod extends out of the cutter bar, the other end of the push rod is provided with a guide body, and the front end of the guide body is slidably connected with a boring cutter block; the face, facing the guide body, of the boring cutter block is provided with an inclined groove, and the front end of the guide body extends into the inclined groove and is tangent to the inclined groove. The boring cutter is used for solving the technical problem that in the prior art, a boring cutter is not easy to control in the using process.

Description

Technical Field

[0001] The utility model belongs to the technical field of lathes, and in particular relates to a tool bar assembly for boring inner hole grooves. Background Art

[0002] When boring inner holes and inner hole grooves, the existing boring tool needs to adjust the middle slide of the slide box to move forward and backward to realize work and make way, and the operation direction of the middle slide when boring holes is opposite to that of the middle slide when boring the outer diameter of the axle. This opposite operation mode is prone to misoperation, which may result in empty tool movement and, in severe cases, collision with the tool and damage to the workpiece.

[0003] Therefore, a tool that is easy to control is needed to bore inner holes and inner hole grooves. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a tool rod assembly for boring inner hole grooves, which is used to solve the technical problem that the boring tool of the prior art is difficult to control during use.

[0005] The utility model solves the above technical problems with the following technical solutions: A tool bar assembly for boring an inner hole groove, comprising:

[0006] A tool bar, wherein the tool bar is a hollow tube, a fixing seat is provided at one end of the tool bar, a guide sleeve is provided at the other end of the tool bar, and a vertical tool groove is provided at the front end of the guide sleeve, wherein a boring block is placed in the tool groove;

[0007] A push rod, the push rod extends into the inside of the tool rod, one end of the push rod extends out of the tool rod, and the other end of the push rod is provided with a guide body, the front end of the guide body is slidably connected to the boring block;

[0008] The boring block has an oblique groove on one side facing the guide body, and the front end of the guide body extends into the oblique groove and is tangent to the oblique groove.

[0009] The push rod of the utility model is inside the tool rod, and the tool rod can be fixedly connected with the slide box and can move forward and backward together with the slide box. The push rod is driven by an external power to move forward and backward inside the tool rod, and can drive the guide body to move forward and backward. The front end of the guide body moves forward and backward in the inclined groove, so that the boring block can move up and down in the tool groove. When the boring block moves up to expose the tool groove, the boring tool on the boring block can realize the work of boring the inner hole groove. When the boring block moves down, it will not contact the inner wall of the workpiece. This operation method is easier to control.

[0010] Further: the outer diameter of the tool rod is smaller than the outer diameter of the guide sleeve, and the outer diameter of the guide sleeve is adapted to the inner hole of the workpiece;

[0011] The inner diameter of the knife rod is consistent with the inner diameter of the guide sleeve;

[0012] The outer diameter of the guide body is matched to the inner diameter of the guide sleeve.

[0013] The beneficial effect of adopting this step: the above structure is to ensure that the guide sleeve moves stably on the inner wall of the workpiece and the guide body moves stably in the guide sleeve, and the tool rod does not contact the inner wall of the workpiece, thereby reducing friction.

[0014] Further: one end of the push rod is a thin rod, and the other end is a thick rod, the thin rod extends out of the knife rod, the thick rod extends into the guide sleeve, and the outer diameter of the thick rod is adapted to the inner diameter of the guide sleeve;

[0015] The push rod is provided with an axial center hole, and the thick rod is further provided with a radial first air outlet hole, and the center hole is connected to the first air outlet hole;

[0016] The guide sleeve is also provided with a second air outlet at a position corresponding to the first air outlet.

[0017] The beneficial effect of adopting this step is: the thin rod of the push rod is also to reduce the friction with the tool rod, and the thick rod is for sealing, allowing the compressed air to smoothly enter the second air outlet from the first air outlet. After the compressed air goes out from the second air outlet, the processing waste generated near the boring block can be blown out of the workpiece, avoiding the processing waste from getting stuck between the guide sleeve and the workpiece, causing roughening of the inner wall of the workpiece.

[0018] Furthermore: the front end of the guide body is a guide ball head or a guide block. When the front end of the guide body is a guide block, the top surface and the bottom surface of the guide block are inclined surfaces and are adapted to the inclined groove.

[0019] Furthermore, the knife rod and the guide sleeve are threadedly connected, and the push rod and the guide body are threadedly connected.

[0020] Furthermore: the guide sleeve is provided with a stepped hole at one end facing the tool rod, the small hole portion of the stepped hole is provided with an internal thread, the tool rod is provided with a stepped shaft matching the stepped hole at one end facing the guide sleeve, and the small shaft portion of the stepped shaft is provided with an external thread matching the internal thread.

[0021] The beneficial effect of adopting this step is: the matching form of the stepped shaft and the stepped hole, part of the stepped shaft and the stepped hole is threaded, and part is a tightly matched polished rod, the thread is used for connection, and the polished rod can ensure the coaxiality of the two when connected.

[0022] The beneficial effects of the utility model are:

[0023] 1. The present application controls the tool bar assembly and the slide box to move forward and backward respectively through the first drive assembly and the second drive assembly, fixes the workpiece through the fixture assembly and drives the workpiece to rotate, and then automatically controls the rotation of the first drive assembly, the second drive assembly and the fixture assembly through the control cabinet to realize automatic processing of the workpiece;

[0024] 2. The present application has a simple structure and low manufacturing cost. It can replace a large-stroke machining center or CNC lathe to process workpieces, effectively control production costs, and improve product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the application structure of a tool bar assembly for boring an inner hole groove provided by the utility model;

[0027] Figure 2 for Figure 1 Right view of;

[0028] Figure 3 A schematic structural diagram of a tool bar, a guide sleeve and a boring block in a tool bar assembly for boring an inner hole groove provided by the utility model;

[0029] Figure 4 A schematic structural diagram of a push rod and a guide body in a tool bar assembly for boring an inner hole groove provided by the utility model;

[0030] Figure 5 for Figure 1 Schematic diagram of the working status of the middle part A;

[0031] Figure 6 for Figure 1 Schematic diagram A' of the non-working state of part A in the middle.

[0032] Reference numerals:

[0033] 1-tool bar; 2-guide sleeve; 3-push rod; 4-guide body; 5-boring block; 6-workpiece;

[0034] 21-knife groove; 22-second air outlet; 31-center hole; 32-thin rod; 33-thick rod; 51-oblique groove; 331-first air outlet. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0036] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0037] In the description of the present application, 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", "axial", "radial", "circumferential" 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.

[0038] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0040] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Example

[0042] like Figure 1 to Figure 6 As shown, the utility model provides a tool bar assembly for boring an inner hole groove, comprising:

[0043] A tool bar 1, which is a hollow tube. A fixing seat is provided at one end of the tool bar 1, which can generally be connected to a slide box. A guide sleeve 2 is provided at the other end of the tool bar 1. The guide sleeve 2 extends into the inner hole of the workpiece, and a vertical tool groove 21 is provided at the front end of the guide sleeve 2. A boring block 5 is placed in the tool groove 21.

[0044] A push rod 3, the push rod 3 extends into the inside of the tool rod 1, one end of the push rod 3 extends out of the tool rod 1, and can be connected to an external power source, which can be a linear drive device such as a hydraulic cylinder, an electric push rod, etc., and the other end of the push rod 3 is provided with a guide body 4, and the front end of the guide body 4 is slidably connected to the boring block 5;

[0045] The boring block 5 has an inclined groove 51 on one side facing the guide body 4 , and the front end of the guide body 4 extends into the inclined groove 51 and is tangent to the inclined groove 51 .

[0046] The push rod 3 of the utility model is inside the tool rod 1, and the tool rod 1 can be fixedly connected to the slide box and can move forward and backward together with the slide box. The push rod 3 is driven by an external power to move forward and backward inside the tool rod 1, and can drive the guide body 4 to move forward and backward. The front end of the guide body 4 moves forward and backward in the inclined groove 51, so that the boring block 5 can move up and down in the tool groove 21. When the boring block 5 moves up to expose the tool groove 21, the boring tool on the boring block 5 can bore the inner hole groove. When the boring block 5 moves down, it will not contact the inner wall of the workpiece 6. This operation mode of working forward and not working backward is more compatible with the intuitive feeling formed in people's daily life and is easier to control.

[0047] On the basis of the above technical solution, the outer diameter of the tool rod 1 is smaller than the outer diameter of the guide sleeve 2, and the outer diameter of the guide sleeve 2 is adapted to the inner hole of the workpiece 6;

[0048] The inner diameter of the knife bar 1 is consistent with the inner diameter of the guide sleeve 2;

[0049] The outer diameter of the guide body 4 is matched to the inner diameter of the guide sleeve 2 .

[0050] The above structure is to ensure that the guide sleeve 2 moves stably on the inner wall of the workpiece 6 and the guide body 4 moves stably in the guide sleeve 2, and the tool rod 1 does not contact the inner wall of the workpiece 6, thereby reducing friction.

[0051] On the basis of the above technical solution, one end of the push rod 3 is a thin rod 32, and the other end is a thick rod 33, the thin rod 32 extends out of the knife bar 1, the thick rod 33 extends into the guide sleeve 2, and the outer diameter of the thick rod 33 is adapted to the inner diameter of the guide sleeve 2;

[0052] The push rod 3 is provided with an axial center hole 31, and the thick rod 33 is further provided with a radial first air outlet hole 331, and the center hole 31 is connected to the first air outlet hole 331;

[0053] The guide sleeve 2 is further provided with a second air outlet 22 at a position corresponding to the first air outlet 331 .

[0054] The thin rod 32 of the push rod 3 is also for reducing the friction with the tool rod 1, and the thick rod 33 is for sealing, allowing the compressed air to smoothly enter the second air outlet 22 from the first air outlet 331. After the compressed air goes out from the second air outlet 22, the processing waste generated near the boring block 5 can be blown out of the workpiece 6, avoiding the processing waste from getting stuck between the guide sleeve 2 and the workpiece 6, causing the inner wall of the workpiece 6 to be roughened.

[0055] On the basis of the above technical solution, the front end of the guide body 4 is a guide ball head or a guide block. When the front end of the guide body is a guide block, the top and bottom surfaces of the guide block are inclined surfaces and are adapted to the inclined groove 51. The guide ball head or the guide block can guide the boring block 5 to move up and down, but the contact area between the guide block and the inclined groove 51 is larger, the action transmission is more accurate, and it is more wear-resistant and durable.

[0056] On the basis of the above technical solution, the knife rod 1 and the guide sleeve 2 are threadedly connected, and the push rod 3 and the guide body 4 are threadedly connected.

[0057] On the basis of the above technical solution, the guide sleeve 2 is provided with a stepped hole at one end facing the tool rod 1, the small hole portion of the stepped hole is provided with an internal thread, the tool rod 1 is provided with a stepped shaft matching the stepped hole at one end facing the guide sleeve 2, and the small shaft portion of the stepped shaft is provided with an external thread matching the internal thread.

[0058] The matching form of the stepped shaft and the stepped hole, part of the stepped shaft and the stepped hole is threaded, and part is a tightly matched polished rod, the thread is used for connection, and the polished rod can ensure the coaxiality of the two when connected. The push rod 3 and the guide body 4 can also adopt this connection method, Figure 1 , Figure 4 , Figure 5 and Figure 6 In the figure, the frame with X in the guide body 4 refers to the wrench surface.

[0059] Finally, the boring tool on the boring tool block 5 in the accompanying drawings is simplified by a vertical line at the top, and its specific installation structure belongs to the prior art and will not be described in detail.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A tool bar assembly for boring an inner hole groove, characterized in that: include: A tool bar, wherein the tool bar is a hollow tube, a fixing seat is provided at one end of the tool bar, a guide sleeve is provided at the other end of the tool bar, and a vertical tool groove is provided at the front end of the guide sleeve, wherein a boring block is placed in the tool groove; A push rod, the push rod extends into the inside of the tool rod, one end of the push rod extends out of the tool rod, and the other end of the push rod is provided with a guide body, the front end of the guide body is slidably connected to the boring block; The boring block has an oblique groove on one side facing the guide body, and the front end of the guide body extends into the oblique groove and is tangent to the oblique groove.

2. The tool bar assembly for boring inner grooves according to claim 1, characterized in that: The outer diameter of the tool rod is smaller than the outer diameter of the guide sleeve, and the outer diameter of the guide sleeve is adapted to the inner hole of the workpiece; The inner diameter of the knife rod is consistent with the inner diameter of the guide sleeve; The outer diameter of the guide body is matched to the inner diameter of the guide sleeve.

3. The tool bar assembly for boring inner grooves according to claim 2, characterized in that: One end of the push rod is a thin rod, and the other end is a thick rod, the thin rod extends out of the knife rod, the thick rod extends into the guide sleeve, and the outer diameter of the thick rod is adapted to the inner diameter of the guide sleeve; The push rod is provided with an axial center hole, and the thick rod is further provided with a radial first air outlet hole, and the center hole is connected to the first air outlet hole; The guide sleeve is also provided with a second air outlet at a position corresponding to the first air outlet.

4. The tool bar assembly for boring inner grooves according to claim 1, characterized in that: The front end of the guide body is a guide ball head or a guide block. When the front end of the guide body is a guide block, the top surface and the bottom surface of the guide block are inclined surfaces and are adapted to the inclined groove.

5. The tool bar assembly for boring inner grooves according to claim 1, characterized in that: The knife rod and the guide sleeve are threadedly connected, and the push rod and the guide body are threadedly connected.

6. The tool bar assembly for boring inner grooves according to claim 5, characterized in that: The guide sleeve has one end facing the tool rod and a stepped hole, the small hole portion of the stepped hole has an internal thread, the tool rod has one end facing the guide sleeve and a stepped shaft matched with the stepped hole, the small shaft portion of the stepped shaft has an external thread matched with the internal thread.

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