CNC (computer numerical control) core moving machine boring cutter bar for complex products

Abstract

The utility model relates to the field of machining, and discloses a CNC (computer numerical control) core moving machine boring cutter bar for complex products, which comprises a clamping handle, the top of the clamping handle is fixedly connected with a connecting end, the connecting end is provided with a locking mechanism, the locking mechanism comprises a threaded rod, one end of the threaded rod is rotatably connected with a connecting rod, and the other end of the threaded rod is provided with a locking mechanism. And a protection mechanism is arranged at the other end of the threaded rod, a hollow clamping arm is fixedly connected to the top of the connecting rod, a sealed containing cavity is formed in the inner wall of the hollow clamping arm, and a clamping block is connected to the inner wall of the sealed containing cavity through a piston. According to the utility model, the locking mechanism is arranged, the clamping blocks transmit pressure through the lubricating oil communicated in the sealed accommodating cavity, and the principle is similar to that of a communicating vessel, so that the abutting force of the clamping blocks is consistent, each cutter handle accommodating piece is ensured to be stably clamped, and the cutter bar with small abrasion loss is prevented from being clamped by excessive clamping force.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, especially to a CNC core walking machine boring tool holder for complex products. BACKGROUND

[0002] CNC core walking machine boring is a tool commonly used in machining, and the tool holder is a component that mounts cutting tools to the machine tool. In CNC core walking machine boring, the tool holder carries the boring tool and is responsible for mounting it to the spindle or boring head of the machine tool. The tool holder usually has a certain rigidity and stability to ensure the accuracy and stability of the tool during machining.

[0003] After searching, the patent publication number CN219966541U discloses a boring tool holder for core walking machine, which includes a clamping handle, one end of the clamping handle has a connecting part, at least one tool holder is arranged side by side on the connecting part, and a containing space for containing the boring tool is formed between the free ends of the two tool holders; it also includes a locking structure, which is used to elastically clamp the free ends of the adjacent two tool holders, so as to make the containing space smaller and form the fastening of the boring tool.

[0004] However, the locking structure of the device uses a bolt to elastically clamp the free ends of all tool holders. During the machining of complex products by the boring tool, the service life of different tools is inconsistent, resulting in inconsistent wear of the containing spaces of different tool holders. The tool holder with more wear needs more clamping force, and using the same bolt to clamp will result in consistent clamping force on each tool holder. In order to clamp all tool holders, the tool holder with the most wear will be clamped with the required clamping force, resulting in excessive clamping force on the tool holder with less wear. Excessive clamping force will cause the tool to vibrate or deform during machining, thereby affecting the quality of the machined surface. Therefore, a CNC core walking machine boring tool holder for complex products is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a CNC core walking machine boring tool holder for complex products, which aims to improve the problem that the tool holder with less wear is clamped with excessive clamping force in the prior art, and excessive clamping force will cause the tool to vibrate or deform during machining, thereby affecting the quality of the machined surface.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a CNC core machine boring tool bar for complex products, including clamping handle, the top of clamping handle is fixedly connected with the connecting end, be provided with locking mechanism on the connecting end, the locking mechanism includes the threaded rod, one end of the threaded rod is rotatably connected with the connecting rod, the other end of the threaded rod is provided with protection mechanism, the top of connecting rod is fixedly connected with hollow clamping arm, the inner wall of hollow clamping arm is provided with sealed accommodating cavity, the inner wall of sealed accommodating cavity is connected with the clamping block of piston, the bottom of connecting rod is fixedly connected with articulated block one, the outer wall of articulated block one is hinged with the rotating arm, the inner wall of connecting end is fixedly connected with slide rail no.

[0007] As a further description of the above technical scheme:

[0008] The top of the fixed baffle is fixedly connected with the slide rail two, the top of the slide rail two is slidably connected with the tool handle containing part, the fixed baffle is provided with a longitudinal sliding groove, the protection mechanism includes a hollow block, the inner wall of the hollow block is elastically connected with an arc-shaped chamfer block through a spring, the outer wall of the threaded rod is rotatably connected with a hollow disc part, and the inner wall of the hollow disc part is fixedly connected with a limiting block.

[0009] As a further description of the above technical scheme:

[0010] The outer wall of the threaded rod is threadedly connected with the inner wall of the connecting end, and the inner walls of the sealed accommodating cavities are in communication.

[0011] As a further description of the above technical scheme:

[0012] The outer wall of the clamping block is provided with a limiting baffle, and the top of the slide rail one is slidably connected with the bottom of the articulated block two.

[0013] As a further description of the above technical scheme:

[0014] The top of the tool handle containing part is provided with a hollow cylindrical hole, and the top of the tool handle containing part is provided with a transversely penetrating groove.

[0015] As a further description of the above technical scheme:

[0016] The inner wall of the longitudinal sliding groove is slidably connected with the outer wall of the connecting rod, and the hollow clamping arm, the sealed accommodating cavity and the clamping block are symmetrically arranged.

[0017] As a further description of the above technical scheme:

[0018] The rear end of the hollow block is fixedly connected with the front end of the threaded rod, and an arc-shaped inclined surface is arranged on the side of the arc-shaped chamfer block away from the spring.

[0019] As a further description of the above technical solution:

[0020] One end of the spring is fixedly connected with the inner wall of the hollow block, and the other end of the spring is fixedly connected with the outer wall of the arc-shaped chamfer block.

[0021] The utility model has the following beneficial effects:

[0022] 1、 the utility model discloses a locking mechanism is set up, and each clamping block is passed through the lubricating oil communication in the sealed accommodating cavity and transmits pressure, similar to the principle of communicating vessel, makes each clamping block's resistance degree consistent, guarantees that each handle containing piece is clamped stably, avoids the small abrasion amount cutter bar and is held too much clamping force.

[0023] 2、 the utility model discloses a protection mechanism is set up, when handle containing piece is resisted and clamped, the limiting block and arc-shaped chamfer block resistance pressure increase at this moment, lead to arc-shaped chamfer block extrusion spring and shrink into hollow block, at this moment, hollow disc piece normal rotation cannot drive handle containing piece and be clamped degree increases, further avoid boring cutter and receive the excessive clamping degree of vibration or deformation in the processing process. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A front view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model;

[0025] Figure 2 A connecting end cross-sectional view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model;

[0026] Figure 3 A hollow clamping arm cross-sectional view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model;

[0027] Figure 4 A handle containing piece view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model;

[0028] Figure 5 A hinged block one and a hinged block two view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model;

[0029] Figure 6 A protection mechanism view of the boring cutter arbor for the CNC core-removing machine of the complex product is provided for the utility model.

[0030] LEGEND:

[0031] 1, clamping handle; 2, connecting end; 3, locking mechanism; 31, threaded rod; 32, connecting rod; 33, hollow clamping arm; 34, sealed accommodating cavity; 35, clamping block; 36, hinged block one; 37, rotating arm; 38, slide rail one; 39, hinged block two; 310, fixed baffle; 311, slide rail two; 312, tool holder accommodating part; 313, longitudinal sliding groove; 4, protection mechanism; 41, hollow block; 42, spring; 43, arc-shaped chamfer block; 44, hollow disc part; 45, limiting block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Reference Figures 1-5The utility model provides an embodiment: a kind of CNC core machine boring tool bar for complex product, including clamping handle 1, clamping handle 1 is the key component of tool fixed on tool bar, by clamping handle 1, tool can be safely, stably connected to tool bar, to facilitate processing operation on machine tool, the top of clamping handle 1 is fixedly connected with connecting end 2, connecting end 2 is used to connect support, protect internal mechanism, locking mechanism 3 is provided on connecting end 2, locking mechanism 3 includes threaded rod 31, threaded rod 31 rotation can reciprocate longitudinal movement on connecting end 2, the force of rotation is converted into longitudinal force, and threaded rod 31 screw thread has the function of self-locking, one end of threaded rod 31 is rotatably connected with connecting rod 32, threaded rod 31 drives hollow clamping arm 33 by connecting rod 32, plays the role of transmission, the other end of threaded rod 31 is provided with protection mechanism 4, protection mechanism 4 can no longer increase the clamping force of tool holder accommodating part 312 after clamping block 35 clamps and touches tool holder accommodating part 312, the top of connecting rod 32 is fixedly connected with hollow clamping arm 33, sealing accommodating cavity 34 is opened on the inner wall of hollow clamping arm 33, sealing accommodating cavity 34 is used to store lubricating oil, plays the role of pressure transmission to each clamping block 35, the inner wall of sealing accommodating cavity 34 is connected with clamping block 35, hollow clamping arm 33 drives clamping block 35 to touch tool holder accommodating part 312, clamping block 35 is used to touch clamping tool holder accommodating part 312, the bottom of connecting rod 32 is fixedly connected with hinged block one 36, the outer wall of hinged block one 36 is hingedly connected with rotating arm 37, the inner wall of connecting end 2 is fixedly connected with slide rail one 38, the outer wall of rotating arm 37 away from hinged block one 36 side is hingedly connected with hinged block two 39, when hinged block one 36 moves towards tool holder accommodating part 312, hinged block two 39 is driven by hinged block one 36 through rotating arm 37 and moves towards the direction away from tool holder accommodating part 312 on the top of slide rail one 38, so that hinged block two 39 drives the other side hinged block one 36 to move towards tool holder accommodating part 312 through rotating arm 37, so that hinged block one 36 drives the other side connecting rod 32, hollow clamping arm 33, clamping block 35 to move towards tool holder accommodating part 312, both sides clamping block 35 evenly clamp tool holder accommodating part 312, the inner wall of connecting end 2 is fixedly connected with fixed baffle 310, fixed baffle 310 is used to separate the structure of upper and lower.

[0034] Refer to Figures 2-6The top of the fixed baffle 310 is fixedly connected with a sliding rail two 311, the top of the sliding rail two 311 is slidingly connected with a tool shank accommodating part 312, the tool shank accommodating part 312 can reciprocatingly slide on the top of the sliding rail two 311, and the tool shank accommodating part 312 plays a role of facilitating adjustment of distances between the tool shank accommodating parts 312, a longitudinal sliding groove 313 is formed in the fixed baffle 310, the protection mechanism 4 comprises a hollow block 41, the inner wall of the hollow block 41 is elastically connected with an arc-shaped chamfer block 43 through a spring 42, the outer wall of the arc-shaped chamfer block 43 is slidingly connected with the inner wall of the hollow block 41, so that the arc-shaped chamfer block 43 stably reciprocatingly slides on the inner wall of the hollow block 41, the outer wall of the threaded rod 31 is rotationally connected with a hollow disc part 44, the hollow disc part 44 rotates around the threaded rod 31, the inner wall of the hollow disc part 44 is fixedly connected with a limiting block 45, when not clamped, the hollow disc part 44 rotates to drive the limiting block 45 to rotate, the limiting block 45 abuts against the arc-shaped slope of the arc-shaped chamfer block 43, so that the arc-shaped chamfer block 43 rotates with the limiting block 45.

[0035] With reference to Figures 2-5 The outer wall of the threaded rod 31 is threadedly connected with the inner wall of the connecting end 2, the threaded rod 31 can convert rotary motion into longitudinal reciprocating movement when rotating, the inner walls of the sealed accommodating cavities 34 are in communication with each other, the lubricating oil on the inner walls of the sealed accommodating cavities 34 can flow and exchange with each other, the outer wall of the clamping block 35 is provided with a limiting baffle for limiting excessive movement of the tool shank accommodating part 312, so as to avoid that the clamping block 35 cannot clamp and abut against the tool shank accommodating part 312, the top of the sliding rail one 38 is slidingly connected with the bottom of the hinged block two 39, so that the hinged block two 39 can only slide longitudinally, the top of the tool shank accommodating part 312 is provided with a hollow cylindrical hole for placing a boring tool shank, the top of the tool shank accommodating part 312 is provided with a transversely penetrating groove, which facilitates deformation of the portions on both sides of the tool shank accommodating part 312 to clamp the boring tool shank, this is prior art and will not be described in detail, the inner wall of the longitudinal sliding groove 313 is slidingly connected with the outer wall of the connecting rod 32, the connecting rod 32 stably reciprocatingly moves on the inner wall of the longitudinal sliding groove 313, so as to play a role of ensuring stable sliding of the connecting rod 32, the hollow clamping arm 33, the sealed accommodating cavity 34 and the clamping block 35 are symmetrically arranged, the clamping blocks 35 on both sides clamp the tool shank accommodating part 312, so as to play a role of uniform clamping.

[0036] With reference to Figures 1-6 The rear end of the hollow block 41 is fixedly connected with the front end of the threaded rod 31, the side, away from the spring 42, of the arc-shaped chamfer block 43 is provided with an arc-shaped slope, when the tool shank accommodating part 312 is clamped and abutted, the arc-shaped slope of the limiting block 45 abuts against the arc-shaped chamfer block 43 to increase pressure, so that the arc-shaped chamfer block 43 extrudes the spring 42 to retract into the hollow block 41, one end of the spring 42 is fixedly connected with the inner wall of the hollow block 41, the other end of the spring 42 is fixedly connected with the outer wall of the arc-shaped chamfer block 43, so as to play a role of elastic connection.

[0037] Working principle: insert the shank of the boring tool into the shank accommodating member 312, move the shank accommodating member 312 in the range of the clamping block 35 transversely, so that the relative position of each shank accommodating member 312 can be adjusted, which plays a role in facilitating the adjustment of the distance between the boring tools, rotate the threaded rod 31, since the threaded rod 31 is threadedly connected with the connecting end 2, when the threaded rod 31 rotates forward, it moves towards the shank accommodating member 312, the threaded rod 31 drives the connecting rod 32 on one side, the hollow clamping arm 33, and the clamping block 35 to move towards the shank accommodating member 312, so that each clamping block 35 is in contact with the shank accommodating member 312, at this time each clamping block 35 transmits pressure through the lubricating oil connected in the sealed accommodating cavity 34, similar to the principle of a communicating vessel, so that the contact force of each clamping block 35 is consistent, when some shank accommodating member 312 is worn more, the thickness of the shank accommodating member 312 after clamping the shank is smaller than that of the other shank accommodating member 312, at this time the part of the clamping block 35 that protrudes out of the hollow clamping arm 33 is more than the other clamping block 35 under the pressure transmission of the lubricating oil connected in the sealed accommodating cavity 34, so as to ensure that each shank accommodating member 312 is stably clamped, and avoid that the shank with less wear is clamped with excessive clamping force.

[0038] At the same time, the connecting rod 32 on one side drives the hinged block one 36 to move towards the shank accommodating member 312, the hinged block one 36 drives the hinged block two 39 to move away from the shank accommodating member 312 on the top of the slide rail one 38 through the rotating arm 37, so that the hinged block two 39 drives the hinged block one 36 on the other side to move towards the shank accommodating member 312 through the rotating arm 37, so that the hinged block one 36 drives the connecting rod 32 on the other side, the hollow clamping arm 33, and the clamping block 35 to move towards the shank accommodating member 312, the clamping blocks 35 on both sides uniformly clamp the shank accommodating member 312, which plays a role in stable clamping.

[0039] When the hollow disc member 44 rotates forward, the limit block 45 rotates forward to contact the arc-shaped inclined surface of the arc-shaped chamfer block 43, so that the arc-shaped chamfer block 43 rotates forward, the arc-shaped chamfer block 43 drives the hollow block 41 to rotate forward, and the hollow block 41 drives the threaded rod 31 to rotate forward, through the transmission relationship of the above-mentioned locking mechanism 3, the shank accommodating member 312 is clamped, at this time the contact pressure between the limit block 45 and the arc-shaped chamfer block 43 increases, causing the arc-shaped chamfer block 43 to extrude the spring 42 to retract into the hollow block 41, at this time the hollow disc member 44 cannot drive the shank accommodating member 312 to be clamped with increased clamping force, further avoiding that the boring tool receives excessive clamping force, causing vibration or deformation during the machining process.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A CNC core-bar boring tool for complex products, comprising a clamping shank (1), characterized in that: The top of the clamping handle (1) is fixedly connected with a connecting end (2), the connecting end (2) is provided with a locking mechanism (3), the locking mechanism (3) comprises a threaded rod (31), one end of the threaded rod (31) is rotatably connected with a connecting rod (32), the other end of the threaded rod (31) is provided with a protection mechanism (4), the top of the connecting rod (32) is fixedly connected with a hollow clamping arm (33), a sealing containing cavity (34) is formed in the inner wall of the hollow clamping arm (33), a clamping block (35) is connected to the inner wall of the sealing containing cavity (34), the bottom of the connecting rod (32) is fixedly connected with a hinged block one (36), the outer wall of the hinged block one (36) is hingedly connected with a rotating arm (37), the inner wall of the connecting end (2) is fixedly connected with a sliding rail one (38), the outer wall of the rotating arm (37) away from the hinged block one (36) side is hingedly connected with a hinged block two (39), the inner wall of the connecting end (2) is fixedly connected with a fixed baffle (310).

2. The CNC core jigger boring tool bar for complex products according to claim 1, characterized in that: The top of the fixed baffle (310) is fixedly connected with a sliding rail two (311), the top of the sliding rail two (311) is slidably connected with a tool handle containing part (312), a longitudinal sliding groove (313) is formed in the fixed baffle (310), the protection mechanism (4) comprises a hollow block (41), the inner wall of the hollow block (41) is elastically connected with an arc-shaped chamfer block (43) through a spring (42), the outer wall of the threaded rod (31) is rotatably connected with a hollow disc part (44), the inner wall of the hollow disc part (44) is fixedly connected with a limiting block (45).

3. The CNC core jigger boring tool bar for complex products according to claim 1, characterized in that: The outer wall of the threaded rod (31) is threadedly connected with the inner wall of the connecting end (2), and the inner walls of the sealing containing cavities (34) are in communication with each other.

4. The CNC core jigger boring tool bar for complex products according to claim 1, characterized in that: The outer wall of the clamping block (35) is provided with a limiting baffle, and the top of the sliding rail one (38) is slidably connected with the bottom of the hinged block two (39).

5. The CNC core jigger boring tool bar for complex products according to claim 2, characterized in that: The top of the tool handle containing part (312) is provided with a hollow cylindrical hole, and the top of the tool handle containing part (312) is provided with a transversely penetrating groove.

6. The CNC core jigger boring tool bar for complex products according to claim 2, characterized in that: The inner wall of the longitudinal sliding groove (313) is slidably connected with the outer wall of the connecting rod (32), and the hollow clamping arm (33), the sealing containing cavity (34) and the clamping block (35) are symmetrically arranged.

7. The CNC core jigger boring tool bar for complex products according to claim 2, characterized in that: The rear end of the hollow block (41) is fixedly connected with the front end of the threaded rod (31), and the side of the arc-shaped chamfer block (43) away from the spring (42) is provided with an arc-shaped inclined surface.

8. The CNC core jigger boring tool bar for complex products according to claim 2, characterized in that: One end of the spring (42) is fixedly connected with the inner wall of the hollow block (41), and the other end of the spring (42) is fixedly connected with the outer wall of the arc-shaped chamfer block (43).

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