Driving wrench of machine reamer

Abstract

The invention 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] The present invention relates to the technical field of reamer wrenches, and more specifically, to a driving wrench for machine reamers. Background Art

[0002] A reamer is a tool used for reaming. Reaming is a process of finishing a drilled or cast hole by using a reamer, aiming to improve the dimensional accuracy, shape accuracy, and surface finish of the hole. In industrial production, reaming is usually completed in two ways: one is to complete reaming through machine tools in cooperation with machine reamers; the other is to manually complete reaming through a hand reamer.

[0003] Completing reaming through machine tools in cooperation with machine reamers is usually applicable to large - batch production where space is not limited. This method has advantages such as high efficiency, low cost, and controllable precision. When it is impossible to use machine tools due to space limitations, manual reaming can be adopted. Usually, a T - shaped wrench is used to operate the rotation of the reamer to complete reaming, avoiding repeated disassembly and assembly of workpieces.

[0004] However, currently during manual reaming, generally a T - shaped wrench is used in cooperation with a hand reamer. However, the handle of the T - shaped wrench cannot be used in some narrow spaces, and there are many limitations. Moreover, the existing wrenches are inconvenient to operate during reaming, and at the same time, the time consumed for reaming is long, the reaming efficiency is low, which affects the progress and efficiency of production and processing.

[0005] Therefore, it is necessary to provide a driving wrench for machine reamers to solve the above - mentioned technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a driving wrench for machine reamers to solve the above - mentioned technical problems.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

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

[0009] A handle, one end of which is provided with a mounting seat;

[0010] A connecting sleeve, detachably arranged on the mounting seat, the connecting sleeve is used for installing the machine reamer, and the connecting sleeve is provided with an external gear ring;

[0011] A gear ring, detachably connected to the connecting sleeve;

[0012] Two claw members, respectively installed at the upper and lower ends of the mounting seat, and the two claw members are respectively meshed with the gear ring and the external gear ring;

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

[0014] Furthermore, a perforation adapted to the connecting sleeve is formed on the mounting base, and the connecting sleeve passes through the perforation from bottom to top and is connected to the toothed ring.

[0015] Furthermore, an outer sleeve ring is provided on the outer wall of the connecting sleeve, and a plurality of arc-shaped convex plates are provided on the outer sleeve ring. A plurality of limiting grooves adapted to the arc-shaped convex plates are formed on the inner wall of the toothed ring.

[0016] Furthermore, a locking ring is further included. An internal thread is formed on the inner wall of the locking ring, and an external thread adapted to the locking ring is provided on the outer wall of the arc-shaped convex plate.

[0017] Furthermore, a jack is formed on the mounting base, a limiting hole adapted to the jack is formed on the claw member, a pin shaft is inserted into the limiting hole and the jack, and a locking nut is threadedly connected to the lower end of the pin shaft.

[0018] Furthermore, the reset mechanism includes:

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

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

[0021] Furthermore, a card slot adapted to the spring steel sheet is formed inside the claw member, and the card slot communicates with the limiting hole.

[0022] Furthermore, a conical rod is provided at the end of the machine reamer, and a conical sleeve hole adapted to the conical rod is formed in the connecting sleeve.

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

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] When this solution is used, install the machine reamer into the connecting sleeve. When reaming a hole, align the machine reamer with the hole to be reamed, and rotate the handle clockwise to drive the mounting seat to rotate. Through the cooperation of the claw part, the toothed ring, the external toothed ring and the connecting sleeve, finally push the machine reamer to perform the hole reaming operation; when the handle is rotated counterclockwise, the connecting sleeve and the machine reamer remain stationary, and the claw part will rotate and rotate back to its original position through the reset mechanism. Therefore, only by rotating the handle clockwise and counterclockwise in sequence can the hole reaming operation be completed. Different from the current method of rotating the T-shaped wrench with both hands to make the manual reamer rotate for hole reaming, the hole reaming of the machine reamer can be completed by rotating the handle back and forth with one hand, which is more convenient in operation, saves time, and significantly improves the efficiency of hole reaming, which is beneficial to accelerating the processing process and increasing benefits; and the other hand can hold the machine reamer, which can improve the stability and quality of hole reaming. At the same time, the operation method of this driving wrench can avoid the limitations brought by the current T-shaped wrench and can be used in many narrow spaces with strong flexibility. Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the driving wrench of the present invention in the working state;

[0027] Figure 2 is Figure 1 an enlarged structural diagram of part A in

[0028] Figure 3 is an exploded structural diagram of the driving wrench of the present invention;

[0029] Figure 4 is Figure 3 an enlarged structural diagram of part B in

[0030] Figure 5 is Figure 3 an enlarged structural diagram of part C in

[0031] Figure 6 is a cross-sectional structural diagram of the claw part on the upper side of the mounting seat of the present invention;

[0032] Figure 7 is a structural diagram of the claw part from the internal perspective of the present invention;

[0033] Figure 8 is a structural diagram of the connecting sleeve of the present invention;

[0034] Figure 9 is a structural diagram of the machine reamer of the present invention.

[0035] Explanation of the reference numerals in the drawings:

[0036] 1. Machine reamer; 2. Handle; 3. Mounting seat; 4. Connecting sleeve; 5. Outer gear ring; 6. Tooth ring; 7. Claw member; 8. Reset mechanism; 81. Through hole; 82. Spring pin; 83. Spring steel sheet; 9. Perforation; 10. Outer sleeve ring; 11. Arc convex plate; 12. Limit groove; 13. Locking ring; 14. Insertion hole; 15. Limit hole; 16. Pin shaft; 17. Locking nut; 18. Card slot; 19. Conical rod; 20. Conical sleeve hole; 21. Limiting block; 22. Limiting port. Detailed implementation manner

[0037] 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.

[0038] Please refer to Figures 1-9 , a driving wrench for a machine reamer, used to drive the machine reamer 1 to rotate, including:

[0039] A handle 2, one end of which is provided with a mounting seat 3;

[0040] A connecting sleeve 4, detachably arranged on the mounting seat 3, the connecting sleeve 4 is used to install the machine reamer 1, and the connecting sleeve 4 is provided with an outer gear ring 5;

[0041] A tooth ring 6, detachably connected to the connecting sleeve 4;

[0042] Two claw members 7 are respectively installed at the upper and lower ends of the mounting seat 3, and the two claw members 7 are respectively meshed with the tooth ring 6 and the outer gear ring 5;

[0043] A reset mechanism 8 is arranged on the mounting seat 3, and is used to drive the claw member 7 to rotate and reset.

[0044] When assembling this driving wrench, the connecting sleeve 4 can be first installed on the mounting seat 3, and then the tooth ring 6 is connected to the connecting sleeve 4. Then, the reset mechanism 8 and the two claw members 7 are cooperatively installed on the mounting seat 3, so that the two claw members 7 are respectively located at the upper and lower ends of the mounting seat 3, and the two claw members 7 are respectively meshed with the tooth ring 6 and the outer gear ring 5, that is, the end of the upper claw member 7 is caught in the tooth groove of the tooth ring 6, and the end of the lower claw member 7 is caught in the tooth groove of the outer gear ring 5.

[0045] In use, the machine reamer 1 is installed in the connecting sleeve 4. When reaming a hole, the machine reamer 1 is aligned with the hole to be reamed, and then the handle 2 is rotated clockwise. The handle 2 will drive the mounting seat 3 and the two claw members 7 to rotate clockwise. Since the two claw members 7 are stuck in the tooth grooves of the tooth ring 6 and the external gear ring 5, the two claw members 7 respectively drive the tooth ring 6 and the external gear ring 5 to rotate, so that the connecting sleeve 4 rotates. The connecting sleeve 4 then finally pushes the machine reamer 1 to rotate clockwise for reaming operation. When the handle 2 is rotated clockwise to an angle where it is inconvenient to continue rotating, the handle 2 is then rotated counterclockwise. At this time, the two claw members 7 on the mounting seat 3 slide along the outer edges of the tooth ring 6 and the external gear ring 5 respectively, while the connecting sleeve 4 and the machine reamer 1 remain stationary at this time. When the claw member 7 rotates to the next tooth groove, it will drive the claw member 7 to rotate and reset through the reset mechanism 8, that is, the end of the claw member 7 is caught in the tooth groove at this time, and this pattern is followed. When the handle 2 is rotated counterclockwise back to a convenient operating position, the handle 2 is then rotated clockwise again to finally drive the connecting sleeve 4 and the machine reamer 1 to rotate for reaming, and then the above-mentioned clockwise and counterclockwise rotations of the handle 2 are continuously repeated, and the reaming operation of the machine reamer 1 can be completed.

[0046] In summary, it can be seen that the reaming operation can be completed by simply rotating the handle 2 clockwise and counterclockwise in sequence. Different from the current method of using both hands to rotate a T-shaped wrench to make a manual reamer rotate for reaming, the reaming of the machine reamer 1 can be completed by rotating the handle 2 back and forth with one hand. The operation is more convenient, saving a lot of time, and the reaming efficiency is significantly improved, which is conducive to accelerating the production and processing process and increasing benefits. And the other hand can hold the machine reamer 1 at the beginning of reaming, which can improve the stability and quality of reaming, and the use effect is good. At the same time, through the operation of the handle 2, the limitations brought by the current T-shaped wrench can be avoided, and it can be used in many narrow spaces with strong flexibility.

[0047] With the popularization of machine tools, the inventory of machine reamers will be larger and larger. In this application, the driving wrench can directly apply the machine reamer 1 for reaming, avoiding the current need to use another manual reamer for reaming, eliminating the need to purchase and use another manual reamer, reducing additional manufacturing and maintenance costs, having good versatility and economy, and being more convenient for subsequent maintenance and replacement, which can expand the application prospect of the machine reamer 1 in manual reaming construction.

[0048] Preferably, please refer to Figures 1-4 and Figure 6 , a perforation 9 adapted to the connecting sleeve 4 is provided on the mounting seat 3, and the connecting sleeve 4 passes through the perforation 9 from bottom to top and is connected to the tooth ring 6.

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

[0050] In this embodiment, preferably, please refer to FIGS. 1-4, Figure 6 and Figure 8 an outer sleeve ring 10 is provided on the outer wall of the connecting sleeve 4, and a plurality of arc-shaped convex plates 11 are provided on the outer sleeve ring 10. A plurality of limiting grooves 12 adapted to the arc-shaped convex plates 11 are formed in the inner wall of the toothed ring 6.

[0051] With such a design, when installing the toothed ring 6, the toothed ring 6 is sleeved outside the connecting sleeve 4, and the limiting grooves 12 of the toothed ring 6 are made to correspond to the arc-shaped convex plates 11, so that the toothed ring 6 slides along the arc-shaped convex plates 11 through the limiting grooves 12. The toothed ring 6 is limited by the cooperation of the arc-shaped convex plates 11 and the limiting grooves 12, so that the toothed ring 6 is stably sleeved outside the connecting sleeve 4. That is, subsequently, when the toothed ring 6 rotates, the connecting sleeve 4 will also be driven to rotate synchronously.

[0052] Preferably, please refer to Figures 1-4 and Figure 6 it further includes a locking ring 13, the inner wall of which is provided with internal threads, and the outer wall of the arc-shaped convex plate 11 is provided with external threads threadedly connected to the locking ring 13.

[0053] With such a design, after the connecting sleeve 4 passes through the through hole 9 of the mounting seat 3 from bottom to top, and then the toothed ring 6 is sleeved outside the connecting sleeve 4, the locking ring 13 can be sleeved outside the connecting sleeve 4 from top to bottom, so that the locking ring 13 moves downward until the locking ring 13 is rotatably connected to the arc-shaped convex plate 11, and the vertical direction of the toothed ring 6 can be limited, ensuring the stability of the toothed ring 6, that is, the connecting sleeve 4 and the toothed ring 6 are restricted on the mounting seat 3. The reverse operation for disassembly can be carried out, that is, first remove the locking ring 13, then the toothed ring 6 can be removed from the connecting sleeve 4, and then the connecting sleeve 4 can be removed from the mounting seat 3. The disassembly and assembly are fast and convenient, and subsequent maintenance and replacement are also convenient.

[0054] In this embodiment, preferably, please refer to Figures 1-3 and Figures 5-7 a jack 14 is formed in the mounting seat 3, a limiting hole 15 adapted to the jack 14 is formed in the claw member 7, and a pin shaft 16 is inserted into the limiting hole 15 and the jack 14. A locking nut 17 is threadedly connected to the lower end of the pin shaft 16.

[0055] With such a design, after the reset mechanism 8 is installed, the claw member 7 is placed at the corresponding position on the mounting seat 3, and the limiting hole 15 of the claw member 7 is aligned with the jack 14 of the mounting seat 3. Then, the pin shaft 16 is inserted into the limiting hole 15 and the jack 14 from top to bottom, and extends out from the limiting hole 15 of the claw member 7 below, and finally the locking nut 17 is rotatably connected to the bottom of the pin shaft 16. At this time, the claw member 7 can be installed on the mounting seat 3, and the end portions of the two claw members 7 are respectively stuck in the tooth grooves of the toothed ring 6 and the external gear ring 5.

[0056] In this embodiment, preferably, please refer to Figure 3 and Figures 6-7 , the reset mechanism 8 includes:

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

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

[0059] Specifically, before installing the claw member 7, first insert the spring pin 82 into the through hole 81 of the mounting base 3. Both the upper and lower ends of the spring pin 82 protrude outside the through hole 81 and the protruding lengths are the same. After placing the claw member 7 on the mounting base 3, at the same time, make the spring steel sheet 83 fit inside the claw member 7, and make the spring steel sheet 83 abut tightly against one side of the spring pin 82, as shown in Figures 6-7 the state shown.

[0060] When the handle 2 is rotated counterclockwise, the two claw members 7 will slide along the outer edges of the tooth ring 6 and the external gear ring 5 respectively, and the connecting sleeve 4 and the machine reamer 1 will remain stationary at this time. When the end of the claw member 7 moves from the deep part of the tooth groove towards the outer edge, the spring steel sheet 83 undergoes elastic deformation. When the end of the claw member 7 rotates away from the outer edge end, the spring steel sheet 83 will drive the claw member 7 to reset and be located in the tooth groove here, that is, drive the claw member 7 to rotate and reset.

[0061] In this embodiment, preferably, please refer to Figure 3 and Figures 6-7 , a card slot 18 adapted to the spring steel sheet 83 is opened in the claw member 7, and the card slot 18 communicates with the limiting hole 15.

[0062] With such a design, when the spring steel sheet 83 fits in the card slot 18 of the claw member 7 and the pin shaft 16 passes through the limiting hole 15 and the jack hole 14, it also passes through the inner groove of the spring steel sheet 83. Through the limiting effect of the card slot 18 on the spring steel sheet 83, it can be ensured that when the end of the claw member 7 moves towards the outer edge, the spring steel sheet 83 can generate an elastic force to enable the subsequent reset of the claw member 7.

[0063] In this embodiment, preferably, please refer to Figures 1-3 and Figures 6-9 , a conical rod 19 is provided at the end of the machine reamer 1, and a conical socket hole 20 adapted to the conical rod 19 is opened in the connecting sleeve 4.

[0064] With such a design, when installing the machine reamer 1, the conical rod 19 of the machine reamer 1 can be inserted into the conical socket hole 20 of the connecting sleeve 4, so as to limit the machine reamer 1, and the subsequent rotation of the connecting sleeve 4 can drive the machine reamer 1 to rotate.

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

[0066] With such a design, after the conical rod 19 of the machine reamer 1 is inserted into the conical sleeve hole 20 of the connecting sleeve 4, the limiting block 21 at the end of the conical rod 19 will enter the limiting opening 22, so as to play a role in restricting 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, and 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 only for illustration and not for limiting the present invention. Those skilled in the art can make various modifications or changes according to it. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0068] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0069] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, "a plurality" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A driving wrench for a machine reamer, which is used to drive the machine reamer (1) to rotate, and is characterized in that, Comprising: A handle (2) with a mounting base (3) provided at one end; A connecting sleeve (4) detachably arranged on the mounting base (3), the connecting sleeve (4) being used for mounting the machine reamer (1), and the connecting sleeve (4) being provided with an external gear ring (5); A gear ring (6) detachably connected to the connecting sleeve (4); Two claw members (7) respectively mounted on the upper and lower ends of the mounting base (3), the two claw members (7) respectively meshing with the gear ring (6) and the external gear ring (5); A reset mechanism (8) arranged on the mounting base (3) for driving the claw member (7) to rotate and reset.

2. The driving wrench for a machine reamer according to claim 1, wherein A through hole (9) adapted to the connecting sleeve (4) is formed on the mounting base (3), and the connecting sleeve (4) passes through the through hole (9) from bottom to top and is connected to the gear ring (6).

3. The driving wrench for a machine reamer according to claim 2, characterized in that, An outer sleeve ring (10) is arranged on the outer wall of the connecting sleeve (4), and a plurality of arc-shaped convex plates (11) are provided on the outer sleeve ring (10), and a plurality of limiting grooves (12) adapted to the arc-shaped convex plates (11) are formed on the inner wall of the gear ring (6).

4. A driving wrench for a machine reamer according to claim 3, characterized in that, It further includes a locking ring (13) with internal threads formed on its inner wall, and external threads adapted to the locking ring (13) are provided on the outer wall of the arc-shaped convex plate (11).

5. The driving wrench for a machine reamer according to claim 4, characterized in that, A jack (14) is formed on the mounting base (3), a limiting hole (15) adapted to the jack (14) is formed on the claw member (7), a pin shaft (16) is inserted into the limiting hole (15) and the jack (14), and a locking nut (17) is threadedly connected to the lower end of the pin shaft (16).

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

7. The driving wrench for a machine reamer according to claim 6, characterized in that, A clamping groove (18) adapted to the spring steel sheet (83) is formed inside the claw member (7), and the clamping groove (18) communicates with the limiting hole (15).

8. The driving wrench for a machine reamer according to claim 1, characterized in that A tapered rod (19) is provided at the end of the machine reamer (1), and a tapered sleeve hole (20) adapted to the tapered rod (19) is formed inside the connecting sleeve (4).

9. The driving wrench for a machine reamer according to claim 8, characterized in that, 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 formed inside the tapered sleeve hole (20).

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