Drilling tool positioning clamp convenient to adjust

Abstract

The utility model provides a drilling tool positioning fixture convenient to adjust, which relates to the field of drilling tool fixing appliances and comprises a first ring, a ring sleeve and a second ring which are respectively arranged on two sides of the first ring, and a nut positioned on the other side of the ring sleeve, the ring sleeve is fixedly combined with the first ring, and the second ring fixes a drilling tool; the first ring is provided with a plurality of first protrusions, and adjacent first protrusions form grooves. The first ring is provided with a plurality of grooves, the second ring is provided with a second protrusion used for corresponding to each groove, and the second protrusions are matched with the grooves in a clamped mode and used for adjusting and locking the cut-in angle of the drilling tool when the second ring rotates relative to the first ring and is combined with the clamping matching of the second protrusions and the grooves. And the cut-in angle of the drilling tool can be adjusted and locked.

Description

Technical Field

[0001] The utility model relates to the field of drilling tool fixing devices, in particular to a drilling tool positioning fixture which is easy to adjust. Background Art

[0002] For some special working conditions where the drilling tool cutting angle needs to be adjusted, the positioning fixture with bolt connection as the core cannot meet the needs because the bolt connection position is fixed and the angle adjustment is limited. At present, multiple holes are set in the fixture to expand the fixed angle of the drilling tool, but due to the limitation of the fixing method, multiple bolt connection structures often need to be adjusted during the adjustment process, which is cumbersome. Based on this, a drilling tool positioning fixture that is easy to adjust is proposed with the adjustment of the drilling tool cutting angle as the core. Utility Model Content

[0003] The utility model aims to provide a drilling tool positioning fixture which is easy to adjust, so as to solve the above technical problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A drilling tool positioning fixture that is easy to adjust, comprising a first ring, ring sleeves and a second ring arranged on both sides of the first ring, and a nut located on the other side of the ring sleeve;

[0006] The ring sleeve is fixedly combined with the first ring, and the second ring fixes the drilling tool;

[0007] The first ring has a plurality of first protrusions, and adjacent first protrusions form grooves;

[0008] The second ring has a second protrusion corresponding to each groove, wherein the second protrusion is engaged with the groove for the second ring to rotate relative to the first ring, and the engagement of the second protrusion with the groove is combined to adjust and lock the cutting angle of the drill.

[0009] Preferably, the second ring is provided with a screw rod, which extends outwardly along the axis of the first ring and the ring sleeve to outside the ring sleeve;

[0010] The screw rod outside the ring sleeve is enclosed by a nut, and is used to make the second protrusion snap into the groove or push the second protrusion out of the groove when the nut rotates relative to the screw rod.

[0011] Preferably, the nut is always in close contact with the ring sleeve and is rotationally matched with the ring sleeve;

[0012] When the nut and the screw thread cooperate, the nut pushes the second protrusion out of the groove, or pulls the second protrusion into the groove.

[0013] Preferably, the first ring is provided with a ring groove on one side facing the ring sleeve, and a spring is arranged in the ring groove, one end of the spring is closely attached to the groove end of the ring groove, and the other end extends outward to the nut;

[0014] When the second protrusion is in the groove, the nut cooperates with the thread of the screw rod, so that the nut moves away from or approaches and contacts the ring sleeve.

[0015] Preferably, when the distance between the nut and the ring sleeve is greater than the thickness of the second protrusion, the second ring can push the second protrusion out of the groove during the lateral movement of the nut and the screw, thereby releasing the engagement between the second ring and the first ring.

[0016] Preferably, when the second protrusion enters the groove, the nut cooperates with the thread of the screw rod, so that the nut approaches and contacts the ring sleeve, thereby locking the second ring and the first ring in an embracing state.

[0017] Preferably, the ring sleeve is provided with a bracket, and the bracket is provided with a bracket extension portion fixedly combined with the host.

[0018] The beneficial effects of the utility model are:

[0019] 1. In the present invention, the second ring rotates relative to the first ring, and the cutting angle of the drilling tool can be adjusted and locked by combining the snap fit between the second protrusion and the groove.

[0020] 2. The utility model provides two angle locking methods, the first method is simple and easy, the second method is labor-saving and comfortable, and users have many choices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a drilling tool positioning fixture that is easy to adjust proposed in Example 1;

[0022] Figure 2 for Figure 1 An exploded view of the drill positioning fixture shown;

[0023] Figure 3 for Figure 1 A cross-sectional view of the drill positioning fixture shown;

[0024] Figure 4 This is a schematic diagram of the structure of a drilling tool positioning fixture that is easy to adjust, as proposed in Example 2;

[0025] Figure 5 for Figure 4 An exploded view of the drill positioning fixture shown;

[0026] Figure 6 for Figure 4 A cross-sectional view of the drill positioning fixture shown;

[0027] Figure numerals: 1, bracket; 2, bracket extension; 3, ring sleeve; 4, first ring; 5, second ring; 6, first protrusion; 7, second protrusion; 8, screw rod; 9, nut; 10, spring; 11, ring groove. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0029] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] In this embodiment, a drilling tool positioning fixture that is easy to adjust is proposed. Figure 1-Figure 3 The drilling tool positioning fixture includes a bracket 1, and a bracket extension part 2 and a ring sleeve 3 respectively arranged on both sides of the bracket 1.

[0032] To further illustrate, the bracket extension part 2 is fixedly combined with the main machine, and the ring sleeve 3 is fixed with a first ring 4 coinciding with its own axis by two bolts.

[0033] See also Figure 3 , coincident with the axis of the ring sleeve 3 are not only the first ring 4 but also the second ring 5 located on the other side of the first ring 4. It should be noted that the second ring 5 is used to fix the drilling tool.

[0034] See also Figure 2 The first ring 4 has a plurality of first protrusions 6. Specifically, the plurality of first protrusions 6 are arranged in an array on a side of the first ring 4 facing the second ring 5. To further explain, adjacent first protrusions 6 form a groove.

[0035] The second ring 5 has a plurality of second protrusions 7. Specifically, the plurality of second protrusions 7 are arranged in an array on a side of the second ring 5 facing the first ring 4. To further explain, the plurality of second protrusions 7 correspond one by one to the grooves formed between adjacent first protrusions 6. Thus, when the second ring 5 rotates relative to the first ring 4, the cutting angle of the drilling tool can be adjusted and locked in combination with the snap fit between the second protrusions 7 and the grooves.

[0036] In this embodiment, the second ring 5 is equipped with a screw rod 8, which extends outward along the axis of the first ring 4 and the ring sleeve 3 to the outside of the ring sleeve 3. In this way, when the screw rod 8 outside the ring sleeve 3 is encircled by the nut 9 (threaded fit), the nut 9 rotates relative to the screw rod 8, so that the second protrusion 7 is inserted into the groove, or the second protrusion 7 is pushed out of the groove.

[0037] It is further explained that when the second protrusion 7 is inserted into the groove, the drilling tool cutting angle is locked. Correspondingly, when the second protrusion 7 is disengaged from the groove, the drilling tool cutting angle can be adjusted in a rotational manner according to actual needs.

[0038] In this embodiment, it should be noted that the nut 9 is always in close contact with the ring sleeve 3 and rotates with the ring sleeve 3. In this way, when the nut 9 is threadedly engaged with the screw rod 8, the nut 9 will push the second protrusion 7 out of the groove or pull the second protrusion 7 into the groove.

[0039] Example 2

[0040] In this embodiment, a drilling tool positioning fixture that is easy to adjust is proposed. Figure 4-Figure 6 The drilling tool positioning fixture includes a bracket 1, and a bracket extension part 2 and a ring sleeve 3 respectively arranged on both sides of the bracket 1.

[0041] To further illustrate, the bracket extension part 2 is fixedly combined with the main machine, and the ring sleeve 3 is fixed with a first ring 4 coinciding with its own axis by two bolts.

[0042] See also Figure 6 , coincident with the axis of the ring sleeve 3 are not only the first ring 4 but also the second ring 5 located on the other side of the first ring 4. It should be noted that the second ring 5 is used to fix the drilling tool.

[0043] See also Figure 5 The first ring 4 has a plurality of first protrusions 6. Specifically, the plurality of first protrusions 6 are arranged in an array on a side of the first ring 4 facing the second ring 5. To further explain, adjacent first protrusions 6 form a groove.

[0044] The second ring 5 has a plurality of second protrusions 7. Specifically, the plurality of second protrusions 7 are arranged in an array on a side of the second ring 5 facing the first ring 4. To further explain, the plurality of second protrusions 7 correspond one by one to the grooves formed between adjacent first protrusions 6. Thus, when the second ring 5 rotates relative to the first ring 4, the cutting angle of the drilling tool can be adjusted and locked in combination with the snap fit between the second protrusions 7 and the grooves.

[0045] In this embodiment, the second ring 5 is equipped with a screw rod 8, which extends outward along the axis of the first ring 4 and the ring sleeve 3 to the outside of the ring sleeve 3. In this way, when the screw rod 8 outside the ring sleeve 3 is encircled by the nut 9 (threaded fit), the nut 9 rotates relative to the screw rod 8, so that the second protrusion 7 is inserted into the groove, or the second protrusion 7 is pushed out of the groove.

[0046] Different from the first embodiment, in this embodiment, the first ring 4 is provided with a side facing the ring sleeve 3 as follows: Figure 5 The annular groove 11 shown has a spring 10 therein, one end of the spring 10 is in close contact with the groove end of the annular groove 11, and the other end extends outward to the nut 9. Accordingly, when the second protrusion 7 is in the groove, the nut 9 can be combined with the thread of the screw rod 8 to make the nut 9 move away from or approach and contact the ring sleeve 3.

[0047] Further, when the distance between the nut 9 and the ring sleeve 3 is greater than the thickness of the second protrusion 7, the second ring 5 can push the second protrusion 7 out of the groove during the lateral movement of the nut 9 and the screw 8, thereby releasing the embracing state of the second ring 5 and the first ring 4;

[0048] To further explain, when the second protrusion 7 enters the groove, the nut 9 can cooperate with the thread of the screw rod 8, so that the nut 9 approaches and contacts the ring sleeve 3, thereby locking the second ring 5 and the first ring 4 in an embraced state.

[0049] This embodiment has advantages over the embodiment 1, and the specific advantage is that the rotation comfort of the nut 9 is changed. Specifically, in the embodiment 1, the weight of the drill bit is completely applied to the second ring 5. Accordingly, pushing or pulling the second ring 5 relative to the first ring 4 is completely dependent on the rotation of the nut 9. Therefore, it can be determined that a starting force is required to continuously rotate the nut 9.

[0050] In contrast, in Embodiment 2, the state in which the second protrusion 7 enters the groove is combined so that the nut 9 can rotate relative to the screw 8 without the aid of the collar 3. Thus, when the state in which the second protrusion 7 enters the groove needs to be released, the nut 9 can be rotated relative to the screw 8 and the elastic force of the spring 10 can be used to push the nut 9 away from the collar 3. When the distance between the nut 9 and the collar 3 is greater than the thickness of the second protrusion 7, the combination of the nut 9 and the screw 8 is moved laterally together to push the second protrusion 7 out of the groove. On the contrary, after the drilling tool cutting angle is clear and the state in which the second protrusion 7 enters the groove needs to be locked, the cutting angle can be completely locked by the nut 9 approaching and contacting the collar 3.

[0051] In Example 2, the screwing force of the nut 9 is smaller than that of the nut 9 in Example 1, so that the screwing comfort of the nut 9 is improved.

[0052] See also Figure 2 In the figure, a ring groove 11 is provided at the first ring 4. With this arrangement, the first ring 4 can be flexibly used in Example 1 and Example 2.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A drilling tool positioning fixture that is easy to adjust, characterized in that: It includes a first ring, ring sleeves and a second ring arranged on both sides of the first ring, and a nut located on the other side of the ring sleeve; The ring sleeve is fixedly combined with the first ring, and the second ring fixes the drilling tool; The first ring has a plurality of first protrusions, and adjacent first protrusions form grooves; The second ring has a second protrusion corresponding to each groove, wherein the second protrusion is engaged with the groove for the second ring to rotate relative to the first ring, and the engagement of the second protrusion with the groove is combined to adjust and lock the cutting angle of the drill.

2. The easily adjustable drilling tool positioning fixture according to claim 1, characterized in that: The second ring is provided with a screw rod, which extends outwardly along the axis of the first ring and the ring sleeve to outside the ring sleeve; The screw rod outside the ring sleeve is enclosed by a nut, and is used to make the second protrusion snap into the groove or push the second protrusion out of the groove when the nut rotates relative to the screw rod.

3. The easily adjustable drilling tool positioning fixture according to claim 2, characterized in that: The nut always clings to the ring sleeve and rotates in cooperation with the ring sleeve; When the nut and the screw thread cooperate, the nut pushes the second protrusion out of the groove, or pulls the second protrusion into the groove.

4. The easily adjustable drilling tool positioning fixture according to claim 2, characterized in that: The first ring is provided with a ring groove on one side facing the ring sleeve, and a spring is arranged in the ring groove, one end of the spring is closely attached to the groove end of the ring groove, and the other end of the spring extends outward to the nut; When the second protrusion is in the groove, the nut cooperates with the thread of the screw rod, so that the nut moves away from or approaches and contacts the ring sleeve.

5. The easily adjustable drilling tool positioning fixture according to claim 4, characterized in that: When the distance between the nut and the ring sleeve is greater than the thickness of the second protrusion, the second ring can push the second protrusion out of the groove during the lateral movement of the nut and the screw, thereby releasing the embracing state of the second ring and the first ring.

6. The easily adjustable drilling tool positioning fixture according to claim 4, characterized in that: When the second protrusion enters the groove, the nut is matched with the thread of the screw rod, and the nut approaches and contacts the ring sleeve, thereby locking the second ring and the first ring in an embracing state.

7. The easily adjustable drilling tool positioning fixture according to claim 1, characterized in that: The ring sleeve is provided with a bracket, and the bracket is provided with a bracket extension part fixedly combined with the main machine.

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