Machine clamping deep hole gun drill with switchable blade angle

Abstract

The utility model relates to the technical field of gun drill drilling, in particular to a blade angle switchable machine clamping deep hole gun drill which comprises a gun drill body, a chisel blade face is arranged on the cutting end face of the gun drill body, and a deflection plate is arranged on the chisel blade face. A built-in cavity is formed in the gun drill body, an adjusting assembly is arranged in the built-in cavity and comprises a lifting part arranged in the axial direction of the gun drill body, and the lifting part is connected with the deflection plate and can change the deflection angle of the deflection plate, so that the chisel edge face is adjusted. Then, the blade angle of the gun drill body is changed; and a locking assembly is further arranged in the built-in cavity, and the locking assembly is matched with the adjusting assembly, so that the deflection plate has a multi-gear adjusting state, and when the adjusting assembly acts, the deflection plate can automatically hover at a preset position.

Description

TECHNICAL FIELD

[0001] The utility model relates to gun drill hole technology field, and specifically is a kind of blade angle switchable machine clamp deep hole gun drill. BACKGROUND

[0002] Gun drill is the core tool of deep hole machining, which can cover the drilling needs of engineering plastics such as glass fiber and polytetrafluoroethylene (PTFE).

[0003] At present, when machining workpieces of different hardness, gun drills with different blade angles need to be selected. To find a suitable blade angle for machining, the gun drill with matching blade angle needs to be replaced repeatedly. However, after each replacement, the gun drill and the spindle need to be re-calibrated for concentricity. The whole operation process is complex and tedious, which consumes a lot of time and easily affects the machining efficiency. SUMMARY

[0004] The utility model aims at providing a blade angle switchable machine clamp deep hole gun drill to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A blade angle switchable machine clamp deep hole gun drill comprises a gun drill body, a cross blade surface is provided on the cutting end face of the gun drill body, and a deflector plate is provided on the cross blade surface.

[0007] An internal cavity is formed in the gun drill body, an adjusting assembly is provided in the internal cavity, the adjusting assembly comprises a lifting member arranged in the axial direction of the gun drill body, the lifting member is connected with the deflector plate, and the deflector plate can change the deflection angle, thereby adjusting the cross blade surface and changing the blade angle of the gun drill body.

[0008] A locking assembly is also provided in the internal cavity, the locking assembly cooperates with the adjusting assembly, the deflector plate has multiple gear adjusting states, and when the adjusting assembly operates, the deflector plate can automatically hover at a preset position.

[0009] The blade angle switchable machine clamp deep hole gun drill as described above: the lifting member comprises a threaded sleeve slidingly arranged in the internal cavity, a connecting rod is provided on the threaded sleeve, and the other end of the connecting rod is connected with the deflector plate.

[0010] The blade angle switchable machine clamp deep hole gun drill as described above: a sliding rail is provided on the deflector plate, the sliding rail extends along the length direction of the deflector plate, and the end of the connecting rod away from the threaded sleeve is slidingly arranged in the sliding rail.

[0011] The machine clamped deep hole gun drill with switchable blade angle as described above: the adjusting assembly comprises a screw rod rotationally installed in the built-in cavity, the screw rod is threadedly connected with the threaded sleeve, and one end of the screw rod is coaxially provided with a knob.

[0012] The machine clamped deep hole gun drill with switchable blade angle as described above: the locking assembly comprises an unlocking piece and an elastic positioning structure, the elastic positioning structure comprises a plug-in barrel provided on the threaded sleeve, a plug-in rod is slidingly arranged in the plug-in barrel, a spring is sleeved on the plug-in rod, one end of the spring is in abutment with the plug-in barrel, the other end is in abutment with a limiting ring provided on the plug-in rod, and the end of the plug-in rod away from the plug-in barrel is rotationally installed with a pulley, the pulley is matched with an embedded groove opened on the inner wall of the built-in cavity, and the axial position of the screw rod can be locked.

[0013] The machine clamped deep hole gun drill with switchable blade angle as described above: the embedded groove comprises a sliding surface opened on the inner wall of the built-in cavity, and a plurality of locking grooves adapted to the pulley are equidistantly opened on the sliding surface.

[0014] The machine clamped deep hole gun drill with switchable blade angle as described above: the unlocking piece comprises a lifting ring sleeved on the gun drill body, the lifting ring is slidingly arranged in a through groove opened on the gun drill body, and the lifting ring is hinged to a sleeving ring sleeved on the plug-in rod through a hinge rod.

[0015] Compared with the prior art, the machine clamped deep hole gun drill with switchable blade angle has the following beneficial effects:

[0016] By setting the adjusting assembly, the cooperation between the threaded sleeve and the connecting rod and the deflection plate can drive the deflection plate to deflect relative to the gun drill body, thereby changing the blade angle of the lateral face of the gun drill body, so that the gun drill body can adapt to the drilling requirements of materials with different hardness. Compared with the traditional way of replacing the gun drill body, the operation is simple, repeated disassembly is avoided, and the verification process is saved.

[0017] Meanwhile, by setting the locking assembly, the linkage cooperation between the locking assembly and the adjusting assembly can realize accurate positioning of the deflection plate, so that the operator can adjust the blade angle according to the actual demand, which is high in practicability and high in flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the machine clamped deep hole gun drill with switchable blade angle.

[0019] Figure 2 It is a structural schematic view of the built-in cavity inside the machine clamped deep hole gun drill with switchable blade angle.

[0020] Figure 3 It is a structural schematic view of the embedded groove in the machine clamped deep hole gun drill with switchable blade angle.

[0021] Figure 4 Structure diagram of the cooperation between the adjusting assembly and the locking assembly in the machine clamped deep hole gun drill with switchable blade angle.

[0022] Figure 5 Structure diagram of the locking assembly in the machine clamped deep hole gun drill with switchable blade angle.

[0023] Figure 6 Structure diagram of the adjusting assembly in the machine clamped deep hole gun drill with switchable blade angle.

[0024] Figure 7 Structure diagram of the cooperation between the lifting piece and the deflection plate in the machine clamped deep hole gun drill with switchable blade angle.

[0025] In the figure: 1, gun drill body; 101, built-in cavity; 102, clamping groove; 103, through groove; 2, cross blade surface; 3, cutting channel; 4, deflection plate; 401, sliding rail; 402, guide circular surface; 5, knob; 6, screw rod; 7, spring; 8, plug-in rod; 801, limiting ring; 9, connecting rod; 10, fixed column; 11, locking groove; 12, sliding surface; 13, lifting ring; 14, threaded sleeve; 1401, clamping rod; 15, plug-in cylinder; 16, hinged rod; 17, sleeving ring. DETAILED DESCRIPTION

[0026] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings represent the same or similar elements. Although various aspects of the embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0027] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0028] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, methods, means, elements well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0029] Please refer to Figures 1-7 In the embodiment of the present application, a machine clamped deep hole gun drill with switchable blade angle comprises:

[0030] The gun drill body 1 is provided with a cutting end face, the cutting end face is provided with a lateral blade face 2, the lateral blade face 2 is provided with a deflection plate 4, and the gun drill body 1 is also provided with a cutting channel 3; when drilling, the cutting channel 3 can be used to discharge the cutting debris outward;

[0031] The gun drill body 1 is internally provided with an internal cavity 101, the internal cavity 101 is provided with an adjusting assembly, the adjusting assembly comprises a lifting piece arranged in the axial direction of the gun drill body 1, the lifting piece is connected with the deflection plate 4, and the deflection angle of the deflection plate 4 can be changed, so that the lateral blade face 2 is adjusted, and the blade angle of the gun drill body 1 is changed;

[0032] In detail, please refer to Figure 3 , the deflection plate 4 is rotationally connected with a fixed column 10 arranged in the internal cavity 101.

[0033] In particular, please refer to Figure 4 , Figure 7 , one end of the deflection plate 4 away from the fixed column 10 is provided with a circular arc guide round face 402, the guide round face 402 facilitates the deflection of the deflection plate 4 relative to the gun drill body 1, so that the angle formed by the lateral blade face 2 of the gun drill body 1 and the end face of the gun drill body 1 is changed, so as to adapt to the drilling requirements of different materials or different depths.

[0034] The lifting piece comprises a threaded sleeve 14 slidingly arranged in the internal cavity 101, the threaded sleeve 14 is provided with a connecting rod 9, and the other end of the connecting rod 9 is connected with the deflection plate 4;

[0035] Please refer to Figure 4 , Figure 7 , the deflection plate 4 is provided with a sliding rail 401, the sliding rail 401 extends along the length direction of the deflection plate 4, and one end of the connecting rod 9 away from the threaded sleeve 14 is slidingly arranged in the sliding rail 401;

[0036] The adjusting assembly comprises a lead screw 6 rotationally arranged in the internal cavity 101, the lead screw 6 is threadedly connected with the threaded sleeve 14, and one end of the lead screw 6 is coaxially provided with a knob 5;

[0037] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , the threaded sleeve 14 is provided with a clamping rod 1401, the clamping rod 1401 is slidingly arranged in a clamping groove 102 formed on the inner wall of the internal cavity 101, and under the limitation of the clamping groove 102, the threaded sleeve 14 can only slide in the axial direction of the lead screw 6.

[0038] Specifically, please refer to Figure 7 , in the initial state, the connecting rod 9 is located at the end of the stroke of the slide rail 401 away from the fixed column 10, and when drilling a material with high hardness, the cutting strength needs to be increased by increasing the angle of the chisel face 2.

[0039] In this embodiment, by rotating the knob 5, the threaded sleeve 14 is driven to descend by the lead screw 6, so that the connecting rod 9 moves towards the deflection plate 4. During this process, the connecting rod 9 can slide in the slide rail 401 and push the deflection plate 4 to deflect outward, thereby increasing the angle of the chisel face 2 and improving the cutting strength. Compared with the traditional way of replacing the gun drill body 1, the operation is simpler and faster, and the gun drill body 1 does not need to be disassembled, and the inspection step of the gun drill body 1 after replacement is omitted.

[0040] Further, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 , the built-in cavity 101 is also provided with a locking assembly, which cooperates with the adjusting assembly to enable the deflection plate 4 to have multiple gear adjustment states, so that the deflection plate 4 can automatically hover at a preset position when the adjusting assembly is actuated;

[0041] The locking assembly comprises an unlocking piece and an elastic positioning structure, the elastic positioning structure comprises a plug-in barrel 15 arranged on the threaded sleeve 14, a plug-in rod 8 is slidably arranged in the plug-in barrel 15, a spring 7 is sleeved on the plug-in rod 8, one end of the spring 7 abuts against the plug-in barrel 15, the other end abuts against a limiting ring 801 arranged on the plug-in rod 8, and a pulley is rotatably installed at one end of the plug-in rod 8 away from the plug-in barrel 15. The pulley cooperates with a matching groove opened in the inner wall of the built-in cavity 101, which can lock the axial position of the lead screw 6;

[0042] In particular, please refer to Figure 5 , the spring 7 is always in a compressed state, and the plug-in rod 8 has a tendency to move towards the outside of the plug-in barrel 15.

[0043] The matching groove comprises a sliding surface 12 opened in the inner wall of the built-in cavity 101, and a plurality of locking grooves 11 adapted to the pulley are equidistantly arranged on the sliding surface 12;

[0044] The unlocking piece comprises a lifting ring 13 sleeved on the gun drill body 1, the lifting ring 13 is slidably arranged in the through groove 103 opened in the gun drill body 1, and the lifting ring 13 is hinged to a sleeving ring 17 sleeved on the plug-in rod 8 through a hinge rod 16;

[0045] In combination with the above, in the initial state, the pulley is combined with the set of locking grooves 11 farthest from the deflection plate 4, at this time, due to the elastic potential energy stored by the spring 7 and the connecting effect of the articulated rod 16, the lifting ring 13 is located at the end of the stroke far from the end of the deflection plate 4 through the groove 103; in this state, the position of the threaded sleeve 14 can be locked by the cooperation between the locking groove 11 and the pulley, and then the position of the lead screw 6 and the deflection plate 4 is locked, so that the deflection plate 4 will not be deflected due to friction with the material during the drilling process.

[0046] When it is necessary to adjust the blade angle of the blade face 2, the lifting ring 13 is first pressed towards the deflection plate 4, and then the articulated rod 16 pushes the insertion rod 8 back into the insertion barrel 15, and the spring 7 is further compressed; when the lifting ring 13 cannot be pressed, the pulley is separated from the locking groove 11, and the locking state of the threaded sleeve 14 is released; then, the knob 5 is rotated, the lead screw 6 drives the threaded sleeve 14 to drive the insertion barrel 15 and the insertion rod 8 to descend; in this process, the pulley slides along the sliding surface 12, and the lifting ring 13 remains in the current position unchanged, accompanied by the continuous descent of the threaded sleeve 14, the pulley will contact the next set of locking grooves 11, and when the pulley contacts the locking groove 11, the spring 7 quickly releases the elastic potential energy, which can drive the pulley to engage with the locking groove 11, thereby locking the threaded sleeve 14, at this time, the articulated rod 16 is pushed by the insertion rod 8, forcing the lifting ring 13 to return to the initial position, and the deflection plate 4 is suspended after being deflected outward by a certain angle (the distance between the two adjacent sets of locking grooves 11 is constant, and the angle of the deflection plate 4 driven by the connecting rod 9 during the movement of the pulley from one set of locking grooves 11 to the next set of locking grooves 11 is constant, and is exactly the commonly used angle during cutting), the blade angle switching angle is accurate, and the angle can be increased or decreased successively according to actual needs, the flexibility is high, and the practical performance is enhanced.

[0047] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0048] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A machine gripped gun drill with switchable land angles, characterized in that, Include: Gun drill body (1), the cutting end face of the gun drill body (1) is provided with a chisel face (2), and the chisel face (2) is provided with a deflection plate (4); The gun drill body (1) is internally provided with a built-in cavity (101), and the built-in cavity (101) is provided with an adjusting assembly; the adjusting assembly comprises a lifting piece arranged in the axial direction of the gun drill body (1), the lifting piece is connected with the deflection plate (4), the deflection angle of the deflection plate (4) can be changed, thereby the chisel face (2) is adjusted, and then the rake angle of the gun drill body (1) is changed; The built-in cavity (101) is also provided with a locking assembly, the locking assembly cooperates with the adjusting assembly, the deflection plate (4) can have a multi-gear adjustment state, so that the deflection plate (4) can automatically hover at a preset position when the adjusting assembly is actuated.

2. The machine clamped gun drill with switchable cutting edge angle according to claim 1, characterized in that The lifting piece comprises a threaded sleeve (14) slidingly arranged in the built-in cavity (101), the threaded sleeve (14) is provided with a connecting rod (9), and the other end of the connecting rod (9) is connected with the deflection plate (4).

3. The machine clamped gun drill with switchable cutting edge angle according to claim 2, characterized in that The deflection plate (4) is provided with a sliding rail (401), the sliding rail (401) extends along the length direction of the deflection plate (4), and the end, away from the threaded sleeve (14), of the connecting rod (9) is slidingly arranged in the sliding rail (401).

4. The machine clamped gun drill with switchable cutting edge angle according to claim 2, characterized in that The adjusting assembly comprises a lead screw (6) rotatably arranged in the built-in cavity (101), the lead screw (6) is threadedly connected with the threaded sleeve (14), and one end of the lead screw (6) is coaxially provided with a knob (5).

5. The machine clamped gun drill with switchable cutting edge angle according to claim 4, characterized in that The locking assembly comprises an unlocking piece and an elastic positioning structure, the elastic positioning structure comprises a plug-in barrel (15) arranged on the threaded sleeve (14), a plug-in rod (8) is slidingly arranged in the plug-in barrel (15), a spring (7) is sleeved on the plug-in rod (8), one end of the spring (7) abuts against the plug-in barrel (15), the other end abuts against a limiting ring (801) arranged on the plug-in rod (8), and a pulley is rotatably arranged on the end, away from the plug-in barrel (15), of the plug-in rod (8), the pulley cooperates with an embedded groove arranged on the inner wall of the built-in cavity (101), and the axial position of the lead screw (6) can be locked.

6. The machine clamped gun drill with switchable land angle according to claim 5, characterized in that The embedded groove comprises a sliding surface (12) arranged on the inner wall of the built-in cavity (101), and a plurality of locking grooves (11) adapted to the pulley are equidistantly arranged on the sliding surface (12).

7. The machine clamped gun drill with switchable cutting edge angle according to claim 5, characterized in that The unlocking piece comprises a lifting ring (13) sleeved on the gun drill body (1), the lifting ring (13) is slidingly arranged in a through groove (103) arranged on the gun drill body (1), and the lifting ring (13) is hinged to a sleeve ring (17) sleeved on the plug-in rod (8) through a hinge rod (16).

Images