Tapping wrench
By designing tap wrench with multiple sliding blocks and handles, the problem of small clamping opening of existing tap wrench is solved, and smooth processing and efficient production are achieved, adapting to different sizes of wire taps, improving processing quality and stability.
Patent Information
- Application Number
- CN202422306168.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The clamping opening of existing tapping wrenches is small and the stress area is small, which leads to serious wear, affects processing quality and efficiency, and is prone to cracking of wire tapping and scrapping of workpieces.
A tapping wrench is designed, using multiple sliding blocks to cooperate with the handle, and the sliding block is driven to slide through the handle to adjust the clamping space size, increase the area of stress, and reduce friction through the guide of the slide rail to achieve smooth processing.
The clamping opening is increased, processing efficiency is improved, the risk of messy teeth is reduced, and it is widely applicable, adapted to different sizes of wire taps, and improved processing quality and stability.
Smart Images
Figure CN223235226U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mechanical processing, and more specifically, to a tapping wrench. Background Art
[0002] Tapping wrenches are essential tools in CNC machining. Some workpieces are difficult to tap using automatic equipment due to toolholders, machining requirements, and limited internal space. Manual tapping requires a tapping wrench to hold the taps. Using a tapping wrench can improve machining efficiency and quality while reducing errors and losses during the process.
[0003] The various wrenches currently available generally use two screws to clamp the tap and die. The two-point fixed thread transmission distance of such screws is limited, the tap clamping opening is small, and the force-bearing area between the screw, tap and die is small. When the tapping wrench is used frequently for a long time, it is easy to cause wear on the wrench opening, making it impossible to perform smooth processing, resulting in thread irregularities, even causing the tap to break and the workpiece to be scrapped, seriously affecting work efficiency. Utility Model Content
[0004] The embodiment of the present application provides a tapping wrench, which can increase the clamping opening of the wrench, increase the force-bearing area between the wrench and the clamped object, achieve smooth processing of the tapping wrench, and improve work efficiency.
[0005] The present application provides a tapping wrench that adopts the following technical solution:
[0006] A tapping wrench, comprising:
[0007] Wrench body;
[0008] Sliding blocks, wherein a plurality of sliding blocks are provided, each of the sliding blocks is slidably matched with the wrench body, and the plurality of sliding blocks are connected end to end to enclose a clamping space to clamp the tap;
[0009] A handle, one end of which is connected to the sliding block through the wrench body, and pushing the handle drives the plurality of sliding blocks and the wrench body to slide synchronously, so as to reduce or expand the clamping space.
[0010] By adopting the above technical solution, a force is applied to the handle, which drives the sliding block to move, thereby adjusting the relative position of the sliding block and the wrench body, and then adjusting the size of the clamping space to achieve the clamping or loosening of the wrench body. On the one hand, the clamping space of the tapping wrench is matched to the size of the tap, so that the tapping wrench can be used regardless of the size of the tap, achieving a wide applicability effect; on the other hand, under the action of the handle, the sliding of multiple sliding blocks and the wrench body can increase the opening of the tapping wrench. At the same time, the multiple sliding blocks increase the force area of contact and clamping with the tap, so that the clamping force is sufficient to achieve smooth processing, which can reduce the risk of irregular teeth during tapping and improve processing efficiency.
[0011] Optionally, the wrench body is provided with an installation frame for accommodating multiple sliding blocks, the multiple sliding blocks have the same shape and size, at least one side wall of the sliding block is in contact with the inner wall of the installation frame, and the multiple sliding blocks slide along the inner wall of the installation frame to reduce or expand the clamping space.
[0012] By adopting the above technical solution, the installation frame and the sliding blocks connected at both ends cooperate with each other to limit the maximization and minimization of the clamping space, so that the clamping size of the tapping wrench can reach the limit. At the same time, the sliding blocks are of the same size and easy to process, and can be installed at will in the installation frame, achieving the effect of convenient installation.
[0013] Optionally, a plurality of slide rails are provided on the inner wall of the mounting frame, and the slide rails are provided in one-to-one correspondence with the sliding blocks, and the length direction of the slide rails is consistent with the movement direction of the corresponding sliding blocks. The sliding blocks slide along the slide rails to reduce the friction between the sliding blocks and the wrench body.
[0014] By adopting the above technical solution, in the process of adjusting the size of the clamping space, the sliding block is connected by sliding along the wrench body through the sliding rail. On the one hand, the sliding rail reduces the friction between the sliding block and the inner wall of the mounting frame, and on the other hand, guides the movement direction of the sliding block, making the sliding direction of the sliding block more accurate and avoiding deviation.
[0015] Optionally, the cross-section of the mounting frame is square, and four sliding blocks are provided. The sliding blocks are quadrilaterals and have a first right angle that fits the corners of the mounting frame and a second right angle that is perpendicular to the adjacent sliding blocks. The four sliding blocks slide along the four side walls of the mounting frame respectively, and the four sliding blocks enclose to form a square clamping space.
[0016] By adopting the above technical solution, four sliding blocks are arranged in the installation frame to form a square clamping space, so that the four sliding blocks are in contact with the tap, thereby increasing the force-bearing area of the tap. At the same time, the four sliding blocks can clamp the tap with the same force in four different directions, thereby achieving smooth processing of the tapping wrench.
[0017] Optionally, the sliding block is provided with a mounting groove, the wrench body is provided with a mounting hole, the central axis of the mounting groove and the mounting hole coincide, the mounting hole and the inner wall of the mounting groove are both provided with internal threads, the handle is provided with an external thread matching the internal thread, and the handle is threadedly connected to the wrench body and the sliding block.
[0018] By adopting the above technical solution, the threaded transmission between the handle and the sliding block is utilized, and the sliding block can be driven to move by rotating the handle, thereby adjusting the relative position of the sliding block and the wrench body, and adjusting the distance between the sliding block and the center point of the tapping wrench to adjust the size of the clamping space to clamp the tap; the threaded connection between the mounting groove and the handle serves as a limit for the handle, preventing the sliding block from rotating in the opposite direction without external force acting on the handle.
[0019] Optionally, two handles are provided, the two handles are arranged opposite to each other, and the two handles are respectively perpendicular to the side walls of the installation frame that are arranged opposite to each other.
[0020] By adopting the above technical solution, by applying force to the two handles arranged opposite to each other, the two handles are moved closer to each other toward or away from the center of the tapping wrench through threaded transmission. The two handles apply force to the two sliding blocks respectively, thereby changing the relative positions of the four sliding blocks and the wrench body.
[0021] Optionally, four handles are provided, and the handles are provided in one-to-one correspondence with the sliding blocks, and the four handles are respectively provided perpendicular to the four side walls of the installation frame.
[0022] By adopting the above technical solution, the four handles respectively control the corresponding sliding blocks, so that the sliding blocks can be operated in two directions perpendicular to each other, thereby expanding the use scenarios of the tapping wrench.
[0023] Optionally, the handle includes an avoidance end, the avoidance end is located on a side of the external thread away from the sliding block, and the outer diameter of the avoidance end is smaller than the inner diameter of the mounting hole and the mounting groove.
[0024] By adopting the above technical solution, the setting of the avoidance end reserves travel space for the handle, making it convenient for the handle to drive the sliding block through the installation slot and move toward the center point of the tapping wrench, avoiding the minimization of the clamping space due to the size of the handle.
[0025] Optionally, the avoidance end is provided with an avoidance slope, and along the direction in which the avoidance end gradually moves away from the sliding block, the vertical distance from the central axis of the handle to the avoidance slope first gradually decreases and then gradually increases.
[0026] By adopting the above technical solution, the avoidance inclined surface design prevents the sliding block from interfering with the handle, thereby preventing the opening of the clamping space from being restricted when the sliding block reaches its limit.
[0027] Optionally, the handle further includes a force-applying end, the outer diameter of the force-applying end is larger than the inner diameter of the mounting groove, the avoidance end and the force-applying end are integrally formed, and when the clamping space is minimum, the force-applying end contacts and presses against the wrench body.
[0028] By adopting the above technical solution, when the clamping space is minimized, the force applied to the force-applying end continues to be increased, the force-applying end contacts the wrench body and the pressure buffers part of the force, reducing the damage caused by excessive force to the sliding block and the tap.
[0029] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:
[0030] Applying force to the handle drives the sliding block, adjusting the relative position of the sliding block and the wrench body, and thus adjusting the size of the clamping space to achieve tightening or loosening of the wrench body. Under the action of the handle, the sliding blocks slide against the wrench body to increase the opening of the tapping wrench. At the same time, the multiple sliding blocks increase the force-bearing area of contact and clamping with the tap, ensuring sufficient clamping force for smooth processing, reducing the risk of thread misalignment during tapping, and improving processing efficiency. At the same time, the clamping space of the tapping wrench can be matched to the size of the tap, making the tapping wrench suitable for all tap sizes, achieving a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a schematic diagram of the overall structure of a tapping wrench disclosed in an embodiment of the present application;
[0032] Figure 2 This is a schematic diagram of a tapping wrench disclosed in an embodiment of the present application, highlighting the handle and sliding block.
[0033] Description of reference numerals:
[0034] 1. Wrench body; 11. Mounting frame; 12. Mounting hole; 2. Sliding block; 21. Mounting slot; 3. Clamping space; 4. Handle; 41. Escape end; 42. Escape slope; 43. Force-applying end. DETAILED DESCRIPTION
[0035] The present application is further described in detail below with reference to the accompanying drawings.
[0036] The embodiment of the present application provides a tapping wrench, which can increase the clamping opening of the wrench, increase the force-bearing area between the wrench and the clamped object, achieve smooth processing of the tapping wrench, and improve work efficiency.
[0037] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0038] The terms "first," "second," "third," "fourth," and the like in the specification and claims of the present invention and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0039] For ease of understanding, the tapping wrench in the embodiment of the present application is described below. Figure 1 Kazuto Figure 2 , an embodiment of the tapping wrench in the embodiment of the present application includes a wrench body 1, a sliding block 2 and a handle 4, wherein a plurality of sliding blocks 2 are provided, each sliding block 2 is slidably matched with the wrench body 1, and the plurality of sliding blocks 2 are connected end to end to enclose and form a clamping space 3 to clamp the tapping, and one end of the handle 4 is connected to the sliding block 2 through the wrench body 1, and pushing the handle 4 drives the plurality of sliding blocks 2 to slide synchronously with the wrench body 1 to reduce or expand the clamping space 3. When a force is applied to the handle 4, the handle 4 drives the sliding block 2 to move, thereby adjusting the relative position of the sliding block 2 and the wrench body 1, and then adjusting the size of the clamping space 3 to achieve the clamping or loosening of the wrench body 1. Under the action of the handle 4, the sliding of the plurality of sliding blocks 2 and the wrench body 1 can increase the opening of the tapping wrench, and at the same time, the plurality of sliding blocks 2 increases the force area of contact and clamping with the tapping, so that the clamping force is sufficient to achieve smooth processing, which can reduce the risk of tooth disorder during tapping and improve processing efficiency. The present application can match the clamping space 3 of the tapping wrench according to the size of the tap, so that the tapping wrench is not limited by the size of the tap, thereby achieving a wide applicability effect.
[0040] The wrench body 1 is provided with a mounting frame 11 for accommodating a plurality of sliding blocks 2. In this embodiment, the plurality of sliding blocks 2 are of the same shape and size, are easy to process, and can be freely installed in the mounting frame 11, achieving the effect of convenient installation. At least one side wall of the sliding block 2 is in contact with the inner wall of the mounting frame 11. The plurality of sliding blocks 2 slide along the inner wall of the mounting frame 11 to reduce or expand the clamping space 3. The mounting frame 11 and the sliding blocks 2 connected end to end cooperate with each other to limit the maximization and minimization of the clamping space 3. That is, the mounting frame 11 limits the maximum opening position of the clamping space 3 away from the center of the wrench body 1, and the sliding blocks 2 connected end to end limit the minimum opening position of the clamping space 3 toward the center of the wrench body 1, so that the clamping size of the tapping wrench can reach the limit.
[0041] Furthermore, the inner wall of the mounting frame 11 is provided with a plurality of slide rails, which are arranged in a one-to-one correspondence with the sliding block 2, and the length direction of the slide rail is consistent with the movement direction of the corresponding sliding block 2. The sliding block 2 slides along the slide rails to reduce friction between the sliding block 2 and the wrench body 1. During the process of adjusting the size of the clamping space 3, the sliding block 2 slides along the wrench body 1 via the slide rails. The slide rails not only reduce friction between the sliding block 2 and the inner wall of the mounting frame 11, but also guide the movement direction of the sliding block 2, making the sliding direction of the sliding block 2 more accurate and avoiding deviation.
[0042] In the present embodiment, the wrench body 1 is arranged in a rectangular parallelepiped, the cross section of the mounting frame 11 is square, and the sliding block 2 is provided with four. The sliding block 2 is quadrilateral and has a first right angle fitting the corner of the mounting frame 11 and a second right angle perpendicular to the adjacent sliding block 2. When the first right angle fits the corner of the mounting frame 11, the clamping space 3 is now open to the maximum. The four sliding blocks 2 slide along the four side walls of the mounting frame 11 under the action of the handle 4, so that the four sliding blocks 2 enclose the clamping space 3 to form a square. The center point of the clamping space 3 coincides with the center point of the tapping wrench. When the clamping space 3 is adapted to the size of the tapping, the four sliding blocks 2 all contact the tapping, increasing the force area of the tapping. At the same time, the four sliding blocks 2 can realize the clamping of the tapping with the same force in four different directions, realizing the smooth processing of the tapping wrench. According to processing requirements, the size of the wrench body 1, the mounting frame 11 and the sliding block 2 can be set independently to reach the size of the tapping required for adaptation.
[0043] See also Figure 2In some other embodiments, two handles 4 are provided, and the two handles 4 are arranged opposite to each other, and the two handles 4 are respectively perpendicular to the side walls of the mounting frame 11 arranged opposite to each other, that is, the two handles 4 are located in the horizontal direction or the vertical direction. In this embodiment, the two handles 4 are spaced apart and connected to two of the sliding blocks 2, and the movement direction of the handles 4 is consistent with the movement direction of the corresponding connected sliding blocks 2. By applying a force to the two relatively arranged handles 4, the two handles 4 are moved closer to each other toward or away from the center of the tapping wrench, and the two handles 4 are respectively connected to two of the sliding blocks 2, and force is applied to the two connected sliding blocks 2. The remaining two sliding blocks 2 move synchronously along the slide rail under the action of the adjacent sliding blocks 2, thereby changing the relative positions of the four sliding blocks 2 and the wrench body 1, and then adjusting the size of the clamping space 3.
[0044] In some other embodiments, four handles 4 are provided, and the handles 4 are provided in one-to-one correspondence with the sliding blocks 2, and the four handles 4 are respectively provided perpendicular to the four side walls of the mounting frame 11. The four handles 4 respectively control the corresponding sliding blocks 2, and the sliding blocks 2 can be operated in two directions perpendicular to each other, namely the horizontal direction and the vertical direction, thereby expanding the use scenarios of the tapping wrench.
[0045] Specifically, the sliding block 2 is provided with a mounting groove 21, and the wrench body 1 is provided with a mounting hole 12. The central axes of the mounting groove 21 and the mounting hole 12 coincide with each other, the inner diameters of the mounting groove 21 and the mounting hole 12 are the same, the inner walls of the mounting hole 12 and the mounting groove 21 are both provided with internal threads, and the handle 4 is provided with external threads that match the internal threads. The handle 4 is threadedly connected to the wrench body 1 and the sliding block 2. By utilizing the threaded transmission between the handle 4 and the sliding block 2, rotating the handle 4 can drive the sliding block 2 to move along the length direction of the mounting groove 21, thereby adjusting the relative position of the sliding block 2 and the wrench body 1, and adjusting the distance between the sliding block 2 and the center point of the tapping wrench to adjust the size of the clamping space 3 to clamp the tap; the threaded connection between the mounting groove 21 and the handle 4 acts as a limiter for the handle 4, preventing the sliding block 2 from rotating in the opposite direction without external force acting on the handle 4.
[0046] In order to reduce the restriction of the handle 4 on the opening of the clamping space 3, the handle 4 includes an avoidance end 41 and a force-applying end 43. The avoidance end 41 and the force-applying end 43 are integrally formed. The avoidance end 41 is located on the side of the external thread away from the sliding block 2, and the force-applying end 43 is located on the side of the avoidance end 41 away from the external thread. The outer diameter of the avoidance end 41 is smaller than the inner diameter of the mounting hole 12 and the mounting groove 21. The setting of the avoidance end 41 reserves travel space for the handle 4, making it easier for the handle 4 to drive the sliding block 2 through the mounting groove 21 and move toward the center point of the tapping wrench, thereby avoiding the minimization of the clamping space 3 due to the size of the handle 4. Furthermore, the avoidance end 41 is provided with an avoidance slope 42. As the avoidance end 41 gradually moves away from the sliding block 2, the vertical distance from the central axis of the handle 4 to the avoidance slope 42 first gradually decreases and then gradually increases, so that the sliding block 2 and the handle 4 do not interfere with each other, thereby avoiding the restriction of the opening of the clamping space 3 when the sliding block 2 is at its limit.
[0047] The outer diameter of the force-applying end 43 is larger than the inner diameter of the mounting groove 21. When the clamping space 3 is minimum, the force-applying end 43 contacts and presses against the wrench body 1. When the force applied to the force-applying end 43 is continuously increased, the force-applying end 43 contacts and presses against the wrench body 1 to buffer part of the force, thereby reducing the damage to the sliding block 2 and the tap caused by excessive force.
[0048] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A tapping wrench, characterized in that: include: Wrench body (1); A sliding block (2), wherein a plurality of sliding blocks (2) are provided, each of the sliding blocks (2) is slidably engaged with the wrench body (1), and the plurality of sliding blocks (2) are connected end to end to enclose a clamping space (3) for clamping the tap; A handle (4), one end of which is connected to the sliding block (2) through the wrench body (1), and pushing the handle (4) drives the plurality of sliding blocks (2) and the wrench body (1) to slide synchronously, thereby reducing or expanding the clamping space (3).
2. A tapping wrench according to claim 1, characterized in that: The wrench body (1) is provided with a mounting frame (11) for accommodating a plurality of the sliding blocks (2); the plurality of sliding blocks (2) have the same shape and size; at least one side wall of the sliding block (2) is in contact with an inner wall of the mounting frame (11); the plurality of sliding blocks (2) slide along the inner wall of the mounting frame (11) to reduce or expand the clamping space (3).
3. A tapping wrench according to claim 2, characterized in that: The inner wall of the installation frame (11) is provided with a plurality of slide rails, the slide rails being arranged in one-to-one correspondence with the sliding blocks (2), and the length direction of the slide rails being consistent with the movement direction of the corresponding sliding blocks (2), and the sliding blocks (2) sliding along the slide rails to reduce friction between the sliding blocks (2) and the wrench body (1).
4. A tapping wrench according to claim 2, characterized in that: The cross section of the mounting frame (11) is square, and four sliding blocks (2) are provided. The sliding blocks (2) are quadrilaterals and have a first right angle that fits the corner of the mounting frame (11) and a second right angle that is perpendicular to the adjacent sliding blocks (2). The four sliding blocks (2) slide along the four side walls of the mounting frame (11) respectively, and the four sliding blocks (2) enclose and form a square clamping space (3).
5. A tapping wrench according to claim 4, characterized in that: The sliding block (2) is provided with a mounting groove (21), the wrench body (1) is provided with a mounting hole (12), the central axis of the mounting groove (21) and the mounting hole (12) coincide with each other, the inner walls of the mounting hole (12) and the mounting groove (21) are both provided with internal threads, the handle (4) is provided with external threads matching the internal threads, and the handle (4) is threadedly connected to the wrench body (1) and the sliding block (2).
6. A tapping wrench according to claim 5, characterized in that: Two handles (4) are provided, the two handles (4) are arranged opposite to each other, and the two handles (4) are respectively perpendicular to the oppositely arranged side walls of the installation frame (11).
7. The tapping wrench according to claim 5, characterized in that: Four handles (4) are provided, and the handles (4) are provided in one-to-one correspondence with the sliding blocks (2), and the four handles (4) are respectively provided perpendicular to the four side walls of the installation frame (11).
8. The tapping wrench according to claim 5, characterized in that: The handle (4) includes a relief end (41), the relief end (41) is located on a side of the external thread away from the sliding block (2), and the outer diameter of the relief end (41) is smaller than the inner diameters of the mounting hole (12) and the mounting groove (21).
9. The tapping wrench according to claim 8, characterized in that: The avoidance end (41) is provided with a avoidance slope (42), and along the direction in which the avoidance end (41) gradually moves away from the sliding block (2), the vertical distance from the central axis of the handle (4) to the avoidance slope (42) first gradually decreases and then gradually increases.
10. The tapping wrench according to claim 8, characterized in that: The handle (4) further comprises a force-applying end (43), the outer diameter of the force-applying end (43) being larger than the inner diameter of the mounting groove (21), the avoidance end (41) and the force-applying end (43) being integrally formed, and when the clamping space (3) is at its minimum, the force-applying end (43) contacts and presses against the wrench body (1).