Driving wrench of machine reamer

Abstract

The utility model discloses a driving wrench of a machine reamer, which belongs to the technical field of reamer wrenches, and comprises a handle, a driving rod, a driving rod and a driving rod, the connecting sleeve is detachably arranged on the mounting seat, the connecting sleeve is used for mounting a machine reamer, and the connecting sleeve is provided with an outer gear ring; the gear ring is detachably connected with the connecting sleeve; the two clamping jaw pieces are installed at the upper end and the lower end of the installation base correspondingly and engaged with the gear ring and the outer gear ring correspondingly. The reset mechanism is arranged on the mounting seat; according to the scheme, reaming operation can be completed only by rotating the handle clockwise and anticlockwise in sequence, the mode is different from the current mode that a T-shaped reamer needs to be rotated by two hands to enable a manual reamer to rotate for reaming, operation is easy and convenient, the reaming efficiency is remarkably improved, and the machining progress is accelerated; and the other hand can hold the machine reamer, the reaming stability and the reaming quality can be improved, and meanwhile, the driving wrench can be used in many narrow spaces and is high in flexibility.

Description

Technical Field

[0001] This utility model relates to the field of reamer and wrench technology, and more specifically, to a drive wrench for a machine reamer. Background Technology

[0002] A reamer is a cutting tool used for reaming operations. Reaming is the process of finishing drilled or cast holes using a reamer to improve the dimensional accuracy, shape accuracy, and surface finish of the hole. In industrial production, reaming is typically accomplished in two ways: one is by using a machine tool with a machine reamer; the other is by manually using a hand reamer.

[0003] Reaming using machine tools and machine reamers is typically suitable for mass production where space is not a constraint. This method offers advantages such as high efficiency, low cost, and controllable precision. When space is limited and machine tools cannot be used, manual reaming can be employed. This typically involves using a T-handle to rotate the reamer and complete the reaming process, avoiding repeated disassembly and reassembly of the workpiece.

[0004] Currently, when manually reaming holes, T-shaped wrenches are generally used in conjunction with manual reamers. However, the handle of a T-shaped wrench cannot be used in some narrow spaces, which is quite limiting. Moreover, the existing wrenches are inconvenient to operate when reaming holes, and the reaming process is time-consuming and inefficient, which affects the progress and efficiency of production and processing.

[0005] Therefore, it is necessary to provide a drive wrench for machine reamers to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a drive wrench for machine reamers to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drive wrench for a machine reamer, used to drive the machine reamer to rotate, comprising:

[0009] The handle has a mounting base at one end;

[0010] A connecting sleeve is detachably mounted on the mounting base. The connecting sleeve is used to mount the machine reamer and is provided with an external toothed ring.

[0011] The toothed ring is detachably connected to the connecting sleeve;

[0012] Two claws are respectively installed on the upper and lower ends of the mounting base, and the two claws respectively mesh with the toothed ring and the outer toothed ring;

[0013] A reset mechanism is provided on the mounting base and is used to drive the claw component to rotate and reset.

[0014] Furthermore, the mounting base has a through hole that matches the connecting sleeve, and the connecting sleeve passes through the through hole from bottom to top and is connected to the toothed ring.

[0015] Furthermore, the outer wall of the connecting sleeve is provided with an outer sleeve ring, the outer sleeve ring is provided with multiple arc-shaped protrusions, and the inner wall of the toothed ring is provided with multiple limiting grooves that are adapted to the arc-shaped protrusions.

[0016] Furthermore, it also includes a locking ring, the inner wall of which is provided with internal threads, and the outer wall of the arc-shaped convex plate is provided with external threads that are threadedly connected to the locking ring.

[0017] Furthermore, the mounting base has an insertion hole, and the claw has a limiting hole that matches the insertion hole. A pin is inserted into the limiting hole and the insertion hole, and a locking nut is threaded to the lower end of the pin.

[0018] Furthermore, the reset mechanism includes:

[0019] A through hole is provided on the mounting base, and a spring pin is inserted into the through hole;

[0020] A spring steel sheet is disposed inside the claw component, and one side of the spring steel sheet abuts against the spring pin.

[0021] Furthermore, the claw component has a slot adapted to the spring steel sheet, and the slot communicates with the limiting hole.

[0022] Furthermore, the end of the machine reamer is provided with a tapered rod, and the connecting sleeve is provided with a tapered sleeve hole that is adapted to the tapered rod.

[0023] Furthermore, a limiting block is provided at the end of the conical rod, and a limiting opening adapted to the limiting block is provided in the conical sleeve hole.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This solution involves installing a machine reamer into the connecting sleeve. When reaming, align the reamer with the hole to be reamed, and turn the handle clockwise to rotate the mounting base. Through the cooperation of the jaws, gear ring, external gear ring, and connecting sleeve, the machine reamer is ultimately driven to perform the reaming operation. Turning the handle counterclockwise keeps the connecting sleeve and machine reamer stationary, while the jaws rotate and are reset via a reset mechanism. Therefore, reaming can be completed simply by turning the handle clockwise and counterclockwise sequentially. This differs from the current method that requires two hands to rotate a T-shaped wrench to manually rotate the reamer. Reaming with a machine reamer can be completed by turning the handle back and forth with one hand, making operation simpler, saving time, and significantly improving reaming efficiency, thus accelerating the processing and increasing profits. Furthermore, the other hand can support the machine reamer, improving reaming stability and quality. This drive wrench's operation method avoids the limitations of current T-shaped wrenches, allowing for use in many confined spaces and offering high flexibility. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the drive wrench of this utility model in use.

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A in the diagram;

[0028] Figure 3 This is an exploded structural diagram of the drive wrench of this utility model;

[0029] Figure 4 for Figure 3 Enlarged structural diagram at point B in the diagram;

[0030] Figure 5 for Figure 3 Enlarged structural diagram at point C;

[0031] Figure 6 This is a cross-sectional view of the claw component on the upper side of the mounting base of this utility model.

[0032] Figure 7 This is a structural schematic diagram of the internal structure of the claw component of this utility model;

[0033] Figure 8 This is a schematic diagram of the connecting sleeve of this utility model;

[0034] Figure 9 This is a schematic diagram of the machine reamer of this utility model.

[0035] Explanation of the labels in the diagram:

[0036] 1. Machine reamer; 2. Handle; 3. Mounting base; 4. Connecting sleeve; 5. External gear ring; 6. Gear ring; 7. Claw component; 8. Reset mechanism; 81. Through hole; 82. Spring pin; 83. Spring steel sheet; 9. Through hole; 10. Outer ring; 11. Arc-shaped convex plate; 12. Limiting groove; 13. Locking ring; 14. Insertion hole; 15. Limiting hole; 16. Pin shaft; 17. Locking nut; 18. Slot; 19. Conical rod; 20. Conical sleeve hole; 21. Limiting block; 22. Limiting port. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figure 1-9 A drive wrench for a machine reamer, used to drive the machine reamer 1 to rotate, comprising:

[0039] Handle 2, one end of which is provided with a mounting base 3;

[0040] Connecting sleeve 4 is detachably mounted on mounting base 3. Connecting sleeve 4 is used to install machine reamer 1. Connecting sleeve 4 is provided with external toothed ring 5.

[0041] The toothed ring 6 is detachably connected to the connecting sleeve 4;

[0042] Two claw parts 7 are respectively installed at the upper and lower ends of the mounting base 3, and the two claw parts 7 respectively mesh with the toothed ring 6 and the outer toothed ring 5;

[0043] The reset mechanism 8 is located on the mounting base 3 and is used to drive the claw component 7 to rotate and reset.

[0044] When assembling this drive wrench, first install the connecting sleeve 4 onto the mounting base 3, and then connect the gear ring 6 to the connecting sleeve 4. Next, install the reset mechanism 8 and the two jaw pieces 7 onto the mounting base 3, so that the two jaw pieces 7 are located at the upper and lower ends of the mounting base 3 respectively, and the two jaw pieces 7 mesh with the gear ring 6 and the outer gear ring 5 respectively, so that the end of the upper jaw piece 7 engages in the tooth groove of the gear ring 6, and the end of the lower jaw piece 7 engages in the tooth groove of the outer gear ring 5.

[0045] In use, the machine reamer 1 is installed into the connecting sleeve 4. When reaming, the machine reamer 1 is aligned with the hole to be reamed, and then the handle 2 is turned clockwise. The handle 2 will drive the mounting base 3 and the two jaw pieces 7 to rotate clockwise. Since the two jaw pieces 7 are engaged in the tooth grooves of the gear ring 6 and the outer gear ring 5, the two jaw pieces 7 drive the gear ring 6 and the outer gear ring 5 to rotate respectively, thus causing the connecting sleeve 4 to rotate. The connecting sleeve 4 then ultimately pushes the machine reamer 1 to rotate clockwise to perform the reaming operation. When the handle 2 is rotated clockwise to an angle where it is inconvenient to continue rotating, the handle 2 is then turned counterclockwise. At this time, the two jaw pieces 7 on the mounting base 3 slide along the outer edges of the gear ring 6 and the outer gear ring 5 respectively, while the connecting sleeve 4 and the machine reamer 1 remain stationary. When the chuck 7 rotates to the next tooth groove, the reset mechanism 8 drives the chuck 7 to rotate and reset, so that the end of the chuck 7 is engaged in the tooth groove at this time. This process is repeated in this manner. When the handle 2 is rotated counterclockwise back to a position that is easy to operate, the handle 2 is rotated clockwise to finally drive the connecting sleeve 4 and the machine reamer 1 to rotate and perform reaming. The clockwise and counterclockwise rotation of the handle 2 is repeated continuously to complete the reaming operation of the machine reamer 1.

[0046] In summary, the reaming operation can be completed simply by rotating handle 2 clockwise and counterclockwise in sequence. Unlike the current method that requires both hands to rotate the T-shaped wrench to turn the manual reamer, the machine reamer 1 can be reamed by rotating handle 2 back and forth with one hand. This is much simpler, saves a significant amount of time, and significantly improves reaming efficiency, thus accelerating production and increasing profits. Furthermore, the other hand can support the machine reamer 1 at the beginning of the reaming process, improving stability and reaming quality, resulting in better performance. Simultaneously, the operation of handle 2 avoids the limitations of the current T-shaped wrench, allowing for use in more confined spaces and offering greater flexibility.

[0047] With the popularization of machine tools, the number of machine reamers will increase. The drive wrench in this application can directly use the machine reamer 1 to ream holes, avoiding the need to use a separate manual reamer. It eliminates the need to purchase and use a separate manual reamer, reducing additional manufacturing and maintenance costs. It has good versatility and economy, and subsequent maintenance and replacement are more convenient, which can expand the application prospects of the machine reamer 1 in manual hole reaming construction.

[0048] For preferred options, please refer to [link / reference]. Figure 1-4 and Figure 6 The mounting base 3 has a through hole 9 that is compatible with the connecting sleeve 4. The connecting sleeve 4 passes through the through hole 9 from bottom to top and is connected to the toothed ring 6.

[0049] Specifically, when installing the connecting sleeve 4, first pass the connecting sleeve 4 through the through hole 9 of the mounting base 3 from bottom to top, and then connect the toothed ring 6 to the connecting sleeve 4 from above. At this time, the toothed ring 6 is located on the upper side of the mounting base 3.

[0050] In this embodiment, preferably, please refer to 1-4. Figure 6 and Figure 8 The outer wall of the connecting sleeve 4 is provided with an outer ring 10, and the outer ring 10 is provided with multiple arc-shaped protrusions 11. The inner wall of the toothed ring 6 is provided with multiple limiting grooves 12 that are adapted to the arc-shaped protrusions 11.

[0051] With this design, when installing the toothed ring 6, the toothed ring 6 is fitted over the outside of the connecting sleeve 4, and the limiting groove 12 of the toothed ring 6 corresponds to the arc-shaped convex plate 11. This allows the toothed ring 6 to slide along the arc-shaped convex plate 11 through the limiting groove 12. The toothed ring 6 is limited by the cooperation between the arc-shaped convex plate 11 and the limiting groove 12, so that the toothed ring 6 is stably fitted over the connecting sleeve 4. That is, when the toothed ring 6 rotates, it will also drive the connecting sleeve 4 to rotate synchronously.

[0052] For preferred options, please refer to [link / reference]. Figure 1-4 and Figure 6 It also includes a locking ring 13, whose inner wall is provided with an internal thread, and the outer wall of the arc-shaped protrusion 11 is provided with an external thread that is threadedly connected to the locking ring 13.

[0053] With this design, after the connecting sleeve 4 passes through the through hole 9 of the mounting base 3 from bottom to top, and then the toothed ring 6 is placed on the outside of the connecting sleeve 4, the locking ring 13 can be placed on the outside of the connecting sleeve 4 from top to bottom, causing the locking ring 13 to move downward until it rotates and connects with the arc-shaped convex plate 11. This limits the vertical direction of the toothed ring 6, ensuring its stability. In other words, the connecting sleeve 4 and the toothed ring 6 are restricted on the mounting base 3. Disassembly is done by reversing the operation: first remove the locking ring 13, then remove the toothed ring 6 from the connecting sleeve 4, and then remove the connecting sleeve 4 from the mounting base 3. Disassembly and assembly are quick and convenient, and subsequent inspection, maintenance and replacement are easy.

[0054] In this embodiment, preferably, please refer to [reference needed]. Figure 1-3 and Figure 5-7 The mounting base 3 has an insertion hole 14, and the claw part 7 has a limiting hole 15 that matches the insertion hole 14. A pin 16 is inserted into the limiting hole 15 and the insertion hole 14, and a locking nut 17 is threaded to the lower end of the pin 16.

[0055] With this design, after the reset mechanism 8 is installed, the claw 7 is placed on the mounting base 3 until the limiting hole 15 of the claw 7 is aligned with the insertion hole 14 of the mounting base 3. Then, the pin 16 is inserted into the limiting hole 15 and the insertion hole 14 from top to bottom, and then inserted out from the limiting hole 15 of the claw 7 below. Finally, it is rotated to the bottom of the pin 16 through the locking nut 17. At this time, the claw 7 can be installed on the mounting base 3, and the ends of the two claws 7 are respectively locked in the tooth grooves of the toothed ring 6 and the outer toothed ring 5.

[0056] In this embodiment, preferably, please refer to [reference needed]. Figure 3 and Figure 6-7 The reset mechanism 8 includes:

[0057] A through hole 81 is provided on the mounting base 3, and a spring pin 82 is inserted into the through hole 81.

[0058] A spring steel sheet 83 is disposed inside the claw component 7, and one side of the spring steel sheet 83 abuts against the spring pin 82.

[0059] Specifically, before installing the claw component 7, the spring pin 82 is first inserted into the through hole 81 of the mounting base 3, with both the upper and lower ends of the spring pin 82 protruding from the through hole 81 and protruding for the same length. Then, when placing the claw component 7 onto the mounting base 3, the spring steel sheet 83 is simultaneously positioned within the claw component 7, and the spring steel sheet 83 is pressed tightly against one side of the spring pin 82, as shown below. Figure 6-7 The state shown.

[0060] When the handle 2 is turned counterclockwise, the two jaw pieces 7 will slide along the outer edges of the toothed ring 6 and the outer toothed ring 5 respectively, while the connecting sleeve 4 and the machine reamer 1 remain stationary. As the end of the jaw piece 7 moves from the depth of the tooth groove towards the outer edge, the spring steel sheet 83 undergoes elastic deformation. When the end of the jaw piece 7 rotates and disengages from the outer edge, the spring steel sheet 83 will drive the jaw piece 7 to reset and be located in the tooth groove at this location, that is, drive the jaw piece 7 to rotate and reset.

[0061] In this embodiment, preferably, please refer to [reference needed]. Figure 3 and Figure 6-7 The claw component 7 has a slot 18 that is adapted to the spring steel sheet 83, and the slot 18 communicates with the limiting hole 15.

[0062] With this design, the spring steel sheet 83 fits into the slot 18 of the claw component 7. When the pin 16 passes through the limiting hole 15 and the insertion hole 14, it also passes through the inner groove of the spring steel sheet 83. Through the limiting effect of the slot 18 on the spring steel sheet 83, it can be ensured that when the end of the claw component 7 moves towards the outer edge, the spring steel sheet 83 can generate elastic force so that the claw component 7 can be reset later.

[0063] In this embodiment, preferably, please refer to [reference needed]. Figure 1-3 and Figure 6-9 The end of the machine reamer 1 is provided with a tapered rod 19, and the connecting sleeve 4 is provided with a tapered sleeve hole 20 that is adapted to the tapered rod 19.

[0064] With this design, when installing the machine reamer 1, the tapered rod 19 of the machine reamer 1 can be inserted into the tapered sleeve hole 20 of the connecting sleeve 4, which can limit the machine reamer 1. Subsequently, the rotation of the connecting sleeve 4 can drive the machine reamer 1 to rotate.

[0065] In this embodiment, preferably, please refer to [reference needed]. Figure 1-3 and Figure 6-9 A limiting block 21 is provided at the end of the tapered rod 19, and a limiting opening 22 adapted to the limiting block 21 is provided in the tapered sleeve hole 20.

[0066] With this design, when the tapered rod 19 of the machine reamer 1 is inserted into the tapered sleeve hole 20 of the connecting sleeve 4, the limiting block 21 at the end of the tapered rod 19 will enter the limiting port 22, thereby limiting the rotation of the limiting block 21 and the machine reamer 1. That is, there will be no relative rotation between the machine reamer 1 and the connecting sleeve 4, while when the connecting sleeve 4 rotates, it will drive the machine reamer 1 to rotate.

[0067] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0068] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0069] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A driving wrench for a machine reamer for driving a machine reamer (1) to rotate, characterized in that, include: The handle (2) has a mounting base (3) at one end; A connecting sleeve (4) is detachably mounted on the mounting base (3). The connecting sleeve (4) is used to mount the machine reamer (1). The connecting sleeve (4) is provided with an external toothed ring (5). The toothed ring (6) is detachably connected to the connecting sleeve (4); Two claws (7) are respectively installed on the upper and lower ends of the mounting base (3), and the two claws (7) respectively mesh with the toothed ring (6) and the outer toothed ring (5); The reset mechanism (8) is located on the mounting base (3) and is used to drive the claw (7) to rotate and reset.

2. The driving wrench for a machine reamer according to claim 1, characterized in that, The mounting base (3) has a through hole (9) that is compatible with the connecting sleeve (4). The connecting sleeve (4) passes through the through hole (9) from bottom to top and is connected to the toothed ring (6).

3. A drive wrench for a machine reamer according to claim 2, wherein The outer wall of the connecting sleeve (4) is provided with an outer ring (10), and the outer ring (10) is provided with a plurality of arc-shaped protrusions (11). The inner wall of the toothed ring (6) is provided with a plurality of limiting grooves (12) that are adapted to the arc-shaped protrusions (11).

4. A drive wrench for a machine reamer according to claim 3, wherein It also includes a locking ring (13), whose inner wall is provided with an internal thread, and the outer wall of the arc-shaped protrusion (11) is provided with an external thread that is threadedly connected to the locking ring (13).

5. A drive wrench for a machine reamer according to claim 4, wherein The mounting base (3) has an insertion hole (14), and the claw (7) has a limiting hole (15) that matches the insertion hole (14). A pin (16) is inserted into the limiting hole (15) and the insertion hole (14), and a locking nut (17) is threaded to the lower end of the pin (16).

6. A drive wrench for a machine reamer according to claim 5, wherein The reset mechanism (8) includes: A through hole (81) is provided on the mounting base (3), and a spring pin (82) is inserted into the through hole (81); A spring steel sheet (83) is disposed inside the claw member (7), and one side of the spring steel sheet (83) abuts against the spring pin (82).

7. A drive wrench for a machine reamer according to claim 6, wherein The claw component (7) has a slot (18) that is compatible with the spring steel sheet (83), and the slot (18) communicates with the limiting hole (15).

8. The drive wrench for a machine reamer according to claim 1, wherein The end of the machine reamer (1) is provided with a tapered rod (19), and the connecting sleeve (4) is provided with a tapered sleeve hole (20) that is adapted to the tapered rod (19).

9. A drive wrench for a machine reamer according to claim 8, wherein The end of the tapered rod (19) is provided with a limiting block (21), and a limiting opening (22) adapted to the limiting block (21) is provided in the tapered sleeve hole (20).

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