Auxiliary wrench for screw tap
By designing the V-port base and sliding connection slide bar structure, the verticality problem of the tap wrench during tapping is solved, the accurate positioning of the tap and the bottom hole is achieved, and the processing quality and efficiency are improved.
Patent Information
- Application Number
- CN202422013082.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Existing tap wrenches are difficult to ensure the perpendicularity of the tap and bottom hole when tapping, resulting in obstacles, breaking or destroying the bottom hole, affecting the processing quality, and especially on the arc surface, it is difficult to find the right.
An auxiliary wrench including a V-port base, a slide rod, a sliding base, a spring and a tap wrench is designed. It is stabilized on the arc surface of the workpiece through the V-port base. The slide rod is slidally connected to the sliding base. The spring provides clamping force. The tap wrench clamps the square head of the tap and rotates with the sliding base to achieve colinearity between the tap axis and the bottom hole axis.
The tap alignment process is simplified, the processing quality and efficiency are improved, and the obstacles and damage caused by improper alignment are avoided. It is suitable for tapping on various workpiece surfaces.
Smart Images
Figure CN223114306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing auxiliary equipment, in particular to a tap auxiliary wrench. Background Art
[0002] A tap wrench is a common tool in mechanical processing, used for clamping a tap to perform tapping, and is an essential tool for tapping. When tapping, a high perpendicularity requirement is needed between the tap and the bottom hole. Alignment is required before tapping. Otherwise, when using a tap wrench for tapping, it is very easy for the tap to get stuck and break due to the skew between the tap and the bottom hole, or the bottom hole may be damaged and rendered unusable, affecting the processing quality and even causing damage to the workpiece. And when tapping on an arc surface, the difficulty of alignment increases, and there is no good alignment method. Content of the Utility Model
[0003] The purpose of the utility model is to provide a tap auxiliary wrench to solve the problems existing in the above-mentioned prior art, with a simple structure, convenient operation, and effectively improving the processing quality.
[0004] To achieve the above purpose, the utility model provides the following scheme:
[0005] The utility model provides a tap auxiliary wrench, which includes: a V-groove base, a first sliding rod, a second sliding rod, a sliding base, a first spring, a second spring, and a tap wrench. The lower part of the V-groove base has a V-shaped groove for placing on the arc surface of a workpiece. The middle part of the V-groove base is provided with a first through hole. The bottom of the first sliding rod is detachably and fixedly connected to the top surface of the V-groove base. The bottom of the second sliding rod is detachably and fixedly connected to the top surface of the V-groove base. The second sliding rod is symmetrically arranged with the first sliding rod with respect to the first through hole. The sliding base is slidably connected to the first sliding rod and the second sliding rod respectively. The middle part of the sliding base is provided with a second through hole, and the axis lines of the first through hole and the second through hole are collinear. The first spring is sleeved outside the first sliding rod, and the bottom end of the first spring is abutted against the V-groove base, and the top end of the first spring is abutted against the sliding base. The second spring is sleeved outside the second sliding rod, and the bottom end of the second spring is abutted against the V-groove base, and the top end of the second spring is abutted against the sliding base. The tap wrench is used for clamping and fixing the square head of the tap and enabling the other end of the tap to pass through the first through hole and the second through hole and be collinear with the axis line of the first through hole, and the tap wrench is rotatably connected to the sliding base.
[0006] Preferably, it further includes a split lock, a locking thread is provided at the bottom of the split lock, an internal thread is provided on the side wall of the second through hole, the locking thread of the split lock is used for threaded connection with the internal thread of the second through hole, and the top of the split lock is used for rotatably connecting with the tap wrench.
[0007] Preferably, the split lock includes a first arc-shaped split lock, a second arc-shaped split lock, a first limit pin and a second limit pin. First limit holes and second limit holes are provided at both ends of the first arc-shaped split lock, third limit holes and fourth limit holes are provided at both ends of the second arc-shaped split lock. One end of the first limit pin is used for inserting into the first limit hole, and the other end is used for inserting into the second limit hole. One end of the second limit pin is used for inserting into the third limit hole, and the other end is used for inserting into the fourth limit hole. A circular lock groove is provided at the bottom of the tap wrench, a first semi-convex ring is provided at the top of the first arc-shaped split lock, and a second semi-convex ring is provided at the top of the second arc-shaped split lock. The first semi-convex ring and the second semi-convex ring are used for being clamped in the circular lock groove to enable the tap wrench to be rotatably connected with the split lock.
[0008] Preferably, the tap wrench includes a frame-shaped body, a first rotating rod and a second rotating rod. The first rotating rod is threadedly connected to the first end of the frame-shaped body and extends into the frame-shaped body, and the second rotating rod is threadedly connected to the second end of the frame-shaped body and extends into the frame-shaped body. One end of the first rotating rod extending into the frame-shaped body and one end of the second rotating rod extending into the frame-shaped body are used for clamping and fixing the square head of the tap.
[0009] Preferably, it further includes a first pressing block and a second pressing block. The first pressing block is arranged at one end of the first rotating rod extending into the frame-shaped body, and the second pressing block is arranged at one end of the second rotating rod extending into the frame-shaped body.
[0010] Preferably, a first V-notch is provided at the first pressing block away from the first rotating rod, and a second V-notch is provided at one end of the second pressing block away from the second rotating rod.
[0011] Preferably, it further includes a first bolt, a first gasket, a second bolt and a second gasket. A first threaded hole is provided at the top of the first sliding rod, a second threaded hole is provided at the top of the second sliding rod, first counterbores and second counterbores are provided at both ends of the sliding base. The first bolt is used for passing through the first counterbore and being threadedly connected to the first threaded hole of the first sliding rod inserted into the first counterbore, and the first gasket is sleeved in the first bolt. The second bolt is used for passing through the second counterbore and being threadedly connected to the second threaded hole of the second sliding rod inserted into the second counterbore, and the second gasket is sleeved in the second bolt.
[0012] Preferably, third threaded holes and fourth threaded holes are provided at both ends of the V-shaped base. A first threaded section is provided at the bottom of the first sliding rod, and a second threaded section is provided at the bottom of the second sliding rod. The first threaded section is used for threaded connection in the third threaded hole, and the second threaded section is used for threaded connection in the fourth threaded hole.
[0013] Preferably, a first central groove and a second central groove are provided on both sides of the frame-shaped body. The connection line of the first central groove and the second central groove passes through the axis of the first through hole.
[0014] The utility model has achieved the following technical effects compared with the prior art:
[0015] The utility model provides a tap auxiliary wrench. The square head of the tap is clamped by the tap wrench. The bottom of the V-shaped base is contacted with the workpiece. After the head of the tap pilot cone is aligned with the bottom hole, the tap wrench is pressed downward. When the tap is screwed into an appropriate depth, the tap is withdrawn from the bottom hole and then another wrench is used to continue tapping. The structure is simple, the operation is convenient, and the processing quality is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 is a schematic structural diagram of the tap auxiliary wrench provided by the present utility model;
[0018] Figure 2 is an exploded view of the tap auxiliary wrench provided by the present utility model;
[0019] Figure 3 is a partial cross-sectional view of the tap auxiliary wrench provided by the present utility model;
[0020] Figure 4 is a schematic structural diagram of the top and bottom of the tap auxiliary wrench provided by the present utility model after clamping the tap.
[0021] In the figure: 1. V-groove base; 101. Fourth threaded hole; 102. Counterbore of V-groove base; 103. First through hole; 104. V-shaped opening; 105. Flat opening; 2. First gasket; 3. Second spring; 4. Second sliding rod; 401. Second threaded section; 402. Second threaded hole; 5. Sliding base; 501. Second counterbore; 502. Second through hole; 6. Second bolt; 7. Split lock; 701. Locking thread; 702. First limit pin; 703. Second limit hole; 704. First arc-shaped split lock; 705. First semi-convex ring; 8. Tap wrench; 801. Second rotating rod; 802. Second pressing block; 803. First pressing block; 804. First rotating rod; 805. Annular lock groove; 806. First central groove; 807. Second central groove. Detailed implementation manners
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0023] The purpose of the present invention is to provide a tap auxiliary wrench to solve the problems existing in the above-mentioned prior art, with simple structure, convenient operation, and effectively improving the processing quality.
[0024] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0025] The present invention provides a tap auxiliary wrench, as Figures 1 to 4As shown in the figure, it includes: a V-groove base 1, a first slide bar, a second slide bar 4, a sliding base 5, a first spring, a second spring 3, and a tap wrench 8. The lower part of the V-groove base 1 has a V-shaped groove 104 and a flat groove 105. The V-shaped groove 104 is used to place on the arc surface of the workpiece and can stably lean on the circular arc surface of the workpiece. A first through hole 103 is provided in the middle of the V-groove base 1; the bottom of the first slide bar is detachably and fixedly connected to the top surface of the V-groove base 1; the bottom of the second slide bar 4 is detachably and fixedly connected to the top surface of the V-groove base 1, and the second slide bar 4 and the first slide bar are symmetrically arranged with respect to the first through hole 103; the sliding base 5 is slidably connected to the first slide bar and the second slide bar 4 respectively. A second through hole 502 is provided in the middle of the sliding base 5, and the axis lines of the first through hole 103 and the second through hole 502 are collinear; the first spring is sleeved outside the first slide bar, and the bottom end of the first spring is used to abut against the V-groove base 1, and the top end of the first spring is used to abut against the sliding base 5; the second spring 3 is sleeved outside the second slide bar 4, and the bottom end of the second spring 3 is used to abut against the V-groove base 1, and the top end of the second spring 3 is used to abut against the sliding base 5; the tap wrench 8 is used to clamp and fix the square head of the tap and make the other end of the tap pass through the first through hole 103 and the second through hole 502 and be collinear with the axis line of the first through hole 103, and the tap wrench 8 is used to be rotatably connected to the sliding base 5. Clamp the square head of the tap with the tap wrench 8, contact the bottom of the V-groove base 1 with the workpiece, align the guide cone head of the tap with the bottom hole and then press down the tap wrench 8. When the tap is screwed in to an appropriate depth, withdraw the tap from the bottom hole and then use other wrenches to continue tapping. The structure is simple, the operation is convenient, and the processing quality is effectively improved.
[0026] In a preferred embodiment, the tap auxiliary wrench further includes a split lock 7. A locking thread 701 is provided at the bottom of the split lock 7, an internal thread is provided on the side wall of the second through hole 502, and the locking thread 701 of the split lock 7 is used to be threadedly connected to the internal thread of the second through hole 502. The top of the split lock 7 is used to be rotatably connected to the tap wrench 8. The structure is simple and the assembly is convenient.
[0027] In a preferred embodiment, the split lock 7 includes a first arc-shaped split lock 704, a second arc-shaped split lock 7, a first limit pin 702 and a second limit pin. First limit holes and a second limit hole 703 are provided at both ends of the first arc-shaped split lock 704, and third and fourth limit holes are provided at both ends of the second arc-shaped split lock 7. One end of the first limit pin 702 is used to be inserted into the first limit hole, and the other end is used to be inserted into the second limit hole 703. One end of the second limit pin is used to be inserted into the third limit hole, and the other end is used to be inserted into the fourth limit hole. An annular lock groove 805 is provided at the bottom of the tap wrench 8, a first semi-convex ring 705 is provided at the top of the first arc-shaped split lock 704, and a second semi-convex ring is provided at the top of the second arc-shaped split lock 7. The first semi-convex ring 705 and the second semi-convex ring are used to be clamped in the annular lock groove 805 so that the tap wrench 8 is rotatably connected to the split lock 7. The structure is simple and convenient to use.
[0028] In a preferred embodiment, the tap wrench 8 includes a frame-shaped body, a first rotating rod 804 and a second rotating rod 801. The first rotating rod 804 is threadedly connected to the first end of the frame-shaped body and extends into the frame-shaped body. The second rotating rod 801 is threadedly connected to the second end of the frame-shaped body and extends into the frame-shaped body. The ends of the first rotating rod 804 and the second rotating rod 801 that extend into the frame-shaped body are used to clamp and fix the square head of the tap. The structure is simple and convenient to use.
[0029] In a preferred embodiment, the tap auxiliary wrench further includes a first pressing block 803 and a second pressing block 802. The first pressing block 803 is arranged at the end of the first rotating rod 804 that extends into the frame-shaped body, and the second pressing block 802 is arranged at the end of the second rotating rod 801 that extends into the frame-shaped body.
[0030] In a preferred embodiment, a first V-shaped opening is provided at the end of the first pressing block 803 away from the first rotating rod 804, and a second V-shaped opening is provided at the end of the second pressing block 802 away from the second rotating rod 801. The structure is simple and can effectively fix the square head of the tap.
[0031] In a preferred embodiment, the tap auxiliary wrench further includes a first bolt, a first gasket 2, a second bolt 6 and a second gasket. A first threaded hole is provided at the top of the first sliding rod, and a second threaded hole 402 is provided at the top of the second sliding rod 4. First and second counterbored holes 501 are provided at both ends of the sliding base 5. The first bolt is used to pass through the first counterbored hole and be threadedly connected to the first threaded hole of the first sliding rod inserted into the first counterbored hole. The first gasket 2 is sleeved in the first bolt. The second bolt 6 is used to pass through the second counterbored hole 501 and be threadedly connected to the second threaded hole 402 of the second sliding rod 4 inserted into the second counterbored hole. The second gasket is sleeved in the second bolt 6. The structure is simple and enables the sliding base 5 to be pressed towards the V-shaped base 1 and bounce back.
[0032] In a preferred embodiment, third threaded holes and fourth threaded holes 101 are provided at both ends of the V-shaped base 1. The third threaded holes and the fourth threaded holes 101 are both counterbores 102 of the V-shaped base. The bottoms of the first spring and the second spring 3 respectively extend into the corresponding counterbores 102 of the V-shaped base. A first threaded section is provided at the bottom of the first slide bar, and a second threaded section 401 is provided at the bottom of the second slide bar 4. The first threaded section is used for threaded connection in the third threaded hole, and the second threaded section 401 is used for threaded connection in the fourth threaded hole 101, with a simple structure.
[0033] In a preferred embodiment, a first central groove 806 and a second central groove 807 are provided on both sides of the frame-shaped body. The connection line of the first central groove 806 and the second central groove 807 passes through the axis of the first through hole 103, with a simple structure and convenient for tap alignment.
[0034] Usage process: Clamp the square head of the tap, and place the inner center point on the square head of the tap between the central grooves 806 and 807. Then, make the flat mouth 105 of a kind of tap auxiliary wrench contact the workpiece plane. After aligning the leading cone head of the tap with the bottom hole, press down the rotating rod 801 and the first rotating rod 804. When the tap is screwed in to an appropriate depth, withdraw the tap from the bottom hole and then use other wrenches to continue tapping. After placing the flat mouth on the bottom surface of this invention on the workpiece plane, just introduce the front end of the leading cone part of the tap into the bottom hole and then start tapping. The axis of the tap and the axis of the bottom hole are directly coincident. Additionally, holes with axes normal to the arc surface can also be machined. Place the V-shaped seat of this invention on various arc surfaces, and just introduce the front end of the leading cone part of the tap into the bottom hole and then start tapping. The axis of the tap and the axis of the bottom hole are directly coincident. This invention saves the step of tap alignment, greatly improves the working efficiency, and avoids losses caused by tapping failure.
[0035] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. A tap auxiliary wrench, characterized in that: Comprising: A V-groove base, with a V-shaped groove at the lower part of the V-groove base, the V-shaped groove being used for placing on the arc surface of a workpiece, and a first through hole being provided in the middle of the V-groove base; A first slide bar, the bottom of the first slide bar being detachably and fixedly connected to the top surface of the V-groove base; A second slide bar, the bottom of the second slide bar being detachably and fixedly connected to the top surface of the V-groove base, the second slide bar being symmetrically arranged with respect to the first through hole with the first slide bar; A sliding base, the sliding base being slidably connected to the first slide bar and the second slide bar respectively, a second through hole being provided in the middle of the sliding base, and the axis lines of the first through hole and the second through hole being collinear; A first spring, the first spring being sleeved outside the first slide bar, and the bottom end of the first spring being used for abutting against the V-groove base, and the top end of the first spring being used for abutting against the sliding base; A second spring, the second spring being sleeved outside the second slide bar, and the bottom end of the second spring being used for abutting against the V-groove base, and the top end of the second spring being used for abutting against the sliding base; And A tap wrench, the tap wrench being used for clamping and fixing the square head of a tap and enabling the other end of the tap to pass through the first through hole and the second through hole and be collinear with the axis line of the first through hole, and the tap wrench being rotatably connected to the sliding base.
2. The tap auxiliary wrench according to claim 1, wherein: It further includes a split lock, with a locking thread provided at the bottom of the split lock, an internal thread being provided on the side wall of the second through hole, the locking thread of the split lock being used for threadedly connecting with the internal thread of the second through hole, and the top of the split lock being rotatably connected to the tap wrench.
3. The tap auxiliary wrench according to claim 2, characterized in that: The split lock includes a first arc-shaped split lock, a second arc-shaped split lock, a first limit pin and a second limit pin. First limit holes and second limit holes are provided at both ends of the first arc-shaped split lock, third limit holes and fourth limit holes are provided at both ends of the second arc-shaped split lock. One end of the first limit pin is used for being inserted into the first limit hole, and the other end is used for being inserted into the second limit hole. One end of the second limit pin is used for being inserted into the third limit hole, and the other end is used for being inserted into the fourth limit hole. A circular lock groove is provided at the bottom of the tap wrench, a first half convex ring is provided at the top of the first arc-shaped split lock, and a second half convex ring is provided at the top of the second arc-shaped split lock. The first half convex ring and the second half convex ring are used for being clamped in the circular lock groove to enable the tap wrench to be rotatably connected to the split lock.
4. The tap auxiliary wrench according to claim 3, characterized in that: The tap wrench includes a frame-shaped body, a first rotating rod and a second rotating rod. The first rotating rod is threadedly connected to the first end of the frame-shaped body and extends into the frame-shaped body, the second rotating rod is threadedly connected to the second end of the frame-shaped body and extends into the frame-shaped body. The end of the first rotating rod extending into the frame-shaped body and the end of the second rotating rod extending into the frame-shaped body are used for clamping and fixing the square head of the tap.
5. The tap auxiliary wrench according to claim 4, characterized in that: It further includes a first pressing block and a second pressing block. The first pressing block is arranged at one end of the first rotating rod extending into the frame-shaped body, and the second pressing block is arranged at one end of the second rotating rod extending into the frame-shaped body.
6. The tap auxiliary wrench according to claim 5, characterized in that: A first V-notch is arranged on the first pressing block away from the first rotating rod, and a second V-notch is arranged at one end of the second pressing block away from the second rotating rod.
7. The tap auxiliary wrench according to claim 6, wherein: It further includes a first bolt, a first gasket, a second bolt and a second gasket. A first threaded hole is arranged at the top of the first sliding rod, a second threaded hole is arranged at the top of the second sliding rod, first counterbores and second counterbores are arranged at both ends of the sliding base. The first bolt is used to pass through the first counterbore and be threadedly connected to the first threaded hole of the first sliding rod inserted into the first counterbore. The first gasket is sleeved in the first bolt. The second bolt is used to pass through the second counterbore and be threadedly connected to the second threaded hole of the second sliding rod inserted into the second counterbore. The second gasket is sleeved in the second bolt.
8. The tap auxiliary wrench according to claim 7, wherein: Third threaded holes and fourth threaded holes are arranged at both ends of the V-notch base. A first threaded section is arranged at the bottom of the first sliding rod, and a second threaded section is arranged at the bottom of the second sliding rod. The first threaded section is used to be threadedly connected to the third threaded hole, and the second threaded section is used to be threadedly connected to the fourth threaded hole.
9. The tap auxiliary wrench according to claim 8, characterized in that: First central grooves and second central grooves are arranged on both sides of the frame-shaped body. The connection line of the first central groove and the second central groove passes through the axis of the first through hole.