Hard alloy left-hand guide reamer with threaded handle

Abstract

The utility model relates to the technical field of reamers, in particular to a threaded handle hard alloy left-hand guide reamer which comprises a reamer body, a connecting rod, a guide rod and a threaded handle, the end face of the reamer body is fixedly connected with the connecting rod, the end, away from the reamer body, of the connecting rod is fixedly connected with the guide rod, and a ball sliding groove and a first installation hole are formed in the surface of the guide rod. An insertion hole and an insertion groove are formed in the end face of the guide rod, an abutting block and a supporting spring are arranged in the insertion hole, an outer plate, an inner plate and an insertion rod are fixed to the end face of the threaded handle, a limiting hole is formed in the surface of the outer plate, a movable ball is arranged on the inner side surface of the outer plate, and a second mounting hole is formed in the surface of the inner plate; compared with the prior art, the hard alloy left-hand guide reamer with the threaded handle has the advantages that the structure is improved, so that the reamer is matched with different types of electric guns so as to be matched with different use scenes, the utilization rate of the reamer is increased, and the use cost of personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the field of reamer, in particular to a threaded handle carbide left-handed guide reamer. Background Art

[0002] A reamer is a rotary tool with one or more teeth used to remove a thin layer of metal from the surface of a processed hole. A reamer is a rotary finishing tool with a straight or spiral edge, used for expanding or repairing holes. Reamers usually require higher processing accuracy than drills due to their small cutting volume. They can be operated manually or installed on a drilling machine.

[0003] However, in the prior art, threaded handle reamers usually have fixed sizes and cannot be adapted to different types of electric guns, which results in a decrease in the utilization rate of the reamers and cannot help users save costs.

[0004] Therefore, the utility model proposes a threaded shank cemented carbide left-handed guide reamer to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a threaded shank carbide left-handed guide reamer to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a threaded handle carbide left-handed guide reamer, the threaded handle carbide left-handed guide reamer comprising: a blade, a connecting rod, a guide rod and a threaded handle, the end surface of the blade is fixedly connected to the connecting rod, the end of the connecting rod away from the blade is fixedly connected to the guide rod, the surface of the guide rod is provided with a ball slide groove and a first mounting hole, the end surface of the guide rod is provided with a socket and a slot, and a stop block and a support spring are arranged in the socket;

[0007] A threaded handle, an outer plate, an inner plate and an insert rod are fixed on the end surface of the threaded handle, a limiting hole is opened on the surface of the outer plate, a movable ball is arranged on the inner surface of the outer plate, and a second mounting hole is opened on the surface of the inner plate.

[0008] Preferably, two groups of ball sliding grooves are provided, and the two groups of ball sliding grooves are respectively located on both sides of the guide rod surface, and the first mounting hole is located at the central axis of the guide rod. There are several first mounting holes, and the several first mounting holes are equidistantly linearly distributed on the surface of the guide rod.

[0009] Preferably, there are a plurality of movable balls, which are linearly and equidistantly distributed on the inner surface of the outer plate, and the movable balls are matched with the ball slide grooves.

[0010] Preferably, the inner plate can be inserted into the slot, the insertion rod can be inserted into the socket, two groups of inner plates and outer plates are provided, the two groups of inner plates and outer plates are symmetrically distributed about the central axis of the threaded handle, two groups of insertion rods are provided, the two groups of insertion rods are located between the two groups of inner plates and outer plates, and the insertion rods are located at the central axis of the threaded handle.

[0011] Preferably, the limiting holes and the second mounting holes are arranged in the same manner, and the limiting holes, the first mounting holes and the second mounting holes are connected by pentagonal bolts.

[0012] Preferably, one end of the support spring is fixedly connected to the bottom wall of the socket, and the other end of the support spring is fixedly connected to the stop block, and the outer wall of the stop block and the inner wall of the socket are slidably connected.

[0013] Preferably, when the support spring is not deformed, the stop block is close to the port of the jack, a stop groove is provided on the surface of the stop block, and the end face of the insertion rod is chamfered so that the end face of the insertion rod can be embedded in the stop groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The threaded handle carbide left-handed guide reamer proposed by the utility model is adapted to different types of electric guns to adapt to different usage scenarios through structural improvements, thereby increasing the utilization rate of the reamer and reducing the use cost of personnel. Specifically, by pulling the threaded handle, the outer plate, the inner plate and the insertion rod are driven to move, and then the overall length of the reamer is adjusted to adapt to different usage scenarios. After the adjustment is completed, the five-point bolt is installed into the limiting hole, the first mounting hole and the second mounting hole to fix the threaded handle. This avoids the problem in the prior art that threaded handle reamers usually have fixed sizes and cannot be applied to different types of electric guns, resulting in a decrease in the utilization rate of the reamer and an inability to help users save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the guide rod structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the slot structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the stop block of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the outer plate and inner plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the movable ball structure of the utility model.

[0022] In the figure: 1, blade; 2, connecting rod; 3, guide rod; 4, threaded handle; 5, outer plate; 6, pentagonal bolt;

[0023] 7. Ball bearing slide groove; 8. First mounting hole; 9. Slot; 10. Plug hole; 11. Stop block; 12. Stop groove; 13. Support spring; 14. Limit hole; 15. Inner plate; 16. Movable ball bearing; 17. Second mounting hole; 18. Insert rod. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 6 The utility model provides a technical solution: a threaded handle carbide left-handed guide reamer, the threaded handle carbide left-handed guide reamer comprises: a blade 1, a connecting rod 2, a guide rod 3 and a threaded handle 4, the end surface of the blade 1 is fixedly connected with the connecting rod 2, the end of the connecting rod 2 away from the blade 1 is fixedly connected with the guide rod 3, the surface of the guide rod 3 is provided with a ball slide groove 7 and a first mounting hole 8, the end surface of the guide rod 3 is provided with a socket 10 and a slot 9, and a stop block 11 and a support spring 13 are arranged in the socket 10;

[0027] The threaded handle 4 has an outer plate 5, an inner plate 15 and an insertion rod 18 fixed to its end surface. The outer plate 5 has a limit hole 14 on its surface. A movable ball 16 is provided on the inner surface of the outer plate 5. The inner plate 15 has a second mounting hole 17 on its surface.

[0028] When in use, through structural improvements, the reamer is adapted to different types of electric guns to adapt to different usage scenarios, which increases the utilization rate of the reamer and reduces the use cost of personnel. Specifically, by pulling the threaded handle 4, the outer plate 5, the inner plate 15 and the insert rod 18 are driven to move, and then the overall length of the reamer is adjusted to adapt to different usage scenarios. After the adjustment is completed, the five-point bolt 6 is installed into the limit hole 14, the first mounting hole 8 and the second mounting hole 17 to fix the threaded handle 4.

[0029] Embodiment 2

[0030] On the basis of the first embodiment, in order to improve the smoothness when adjusting the length of the reamer, two groups of ball slide grooves 7 are provided, and the two groups of ball slide grooves 7 are respectively located on both sides of the surface of the guide rod 3, and the first mounting hole 8 is located at the central axis position of the guide rod 3. A plurality of first mounting holes 8 are provided, and the plurality of first mounting holes 8 are equidistantly linearly distributed on the surface of the guide rod 3;

[0031] There are a plurality of movable balls 16, which are evenly and linearly distributed on the inner surface of the outer plate 5, and the movable balls 16 are matched with the ball slide groove 7;

[0032] During use, when the threaded handle 4 is pulled, the outer plate 5 will be driven to move, and synchronously, the movable ball 16 will roll in the ball slide groove 7 accordingly, thereby improving the smoothness of the movement of the outer plate 5 and avoiding jamming. A plurality of first mounting holes 8 are provided to achieve the diversity of reamer length adjustment and improve the practicality in actual use.

[0033] Embodiment 3

[0034] On the basis of the second embodiment, the inner plate 15 can be inserted into the slot 9, the insertion rod 18 can be inserted into the socket 10, and two groups of inner plates 15 and outer plates 5 are provided. The two groups of inner plates 15 and outer plates 5 are symmetrically distributed about the central axis of the threaded handle 4. Two groups of insertion rods 18 are provided, and the two groups of insertion rods 18 are located between the two groups of inner plates 15 and outer plates 5. The insertion rods 18 are located at the central axis position of the threaded handle 4.

[0035] The arrangement of the limiting hole 14 and the second mounting hole 17 is consistent. The limiting hole 14, the first mounting hole 8 and the second mounting hole 17 are connected by a pentagonal bolt 6. One end of the support spring 13 is fixedly connected to the bottom wall of the jack 10, and the other end of the support spring 13 is fixedly connected to the stop block 11. The outer wall of the stop block 11 and the inner wall of the jack 10 are slidably connected.

[0036] When using, combine Figure 2 , Figure 3 and Figure 5 , the inner plate 15 is inserted into the slot 9 corresponding to the inner plate 15, and the insertion rod 18 is inserted into the insertion hole 10 corresponding to the inner plate 15, thereby providing guidance and support for the adjustment of the threaded handle 4, and limiting the direction of movement of the threaded handle 4 to ensure its stability;

[0037] When the support spring 13 is not deformed, the stop block 11 is close to the end of the jack 10, and a stop groove 12 is provided on the surface of the stop block 11. The end surface of the plug rod 18 is rounded, and the end surface of the plug rod 18 can be embedded in the stop groove 12.

[0038] When in use, the guide rod is inserted into the corresponding socket 10, and then the end face of the guide rod will be embedded in the stop groove 12. As the guide rod continues to be pushed, the support spring 13 will be compressed. The support spring 13 stores elastic potential energy, and thus the support spring 13 will give a push back force to the stop block 11 and the guide rod. After that, the pentagonal bolt 6 is used for limiting. The push back force of the support spring 13 cooperates with the limiting of the pentagonal bolt 6 to further improve the stability of the connection between the threaded shank 4 and the guide rod 3, thereby improving the stability of the reamer when in use.

[0039] In actual use, through structural improvements, the reamer is adapted to different types of electric guns to adapt to different usage scenarios, thereby increasing the utilization rate of the reamer and reducing the use cost of personnel. Specifically, by pulling the threaded handle 4, the outer plate 5, the inner plate 15 and the insertion rod 18 are driven to move, and then the overall length of the reamer is adjusted to adapt to different usage scenarios. After the adjustment is completed, the pentagonal bolt 6 is installed into the limiting hole 14, the first mounting hole 8 and the second mounting hole 17 to fix the threaded handle 4, and the guide rod is correspondingly inserted into the insertion hole 10, and then the end face of the guide rod is embedded in the stop groove 1 2, as the guide rod continues to push, the support spring 13 will be compressed, and the support spring 13 stores elastic potential energy, so that the support spring 13 will give a return thrust to the stop block 11 and the guide rod. After that, the pentagonal bolt 6 is used for limiting. The return thrust of the support spring 13 cooperates with the limiting of the pentagonal bolt 6 to further improve the stability of the connection between the threaded shank 4 and the guide rod 3, and improve the stability of the reamer when in use. This avoids the problem in the prior art that threaded shank reamers usually have fixed sizes and cannot be applied to different models of electric guns, resulting in a decrease in the utilization rate of the reamer and an inability to help users save costs.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Threaded shank carbide left-handed guide reamer, characterized by: The threaded shank cemented carbide left-handed guide reamer comprises: a blade body (1), a connecting rod (2), a guide rod (3) and a threaded shank (4); the end surface of the blade body (1) is fixedly connected to the connecting rod (2); the end of the connecting rod (2) away from the blade body (1) is fixedly connected to the guide rod (3); a ball bearing groove (7) and a first mounting hole (8) are provided on the surface of the guide rod (3); a plug hole (10) and a slot (9) are provided on the end surface of the guide rod (3); a stop block (11) and a support spring (13) are provided in the plug hole (10); A threaded handle (4) is provided, and an outer plate (5), an inner plate (15) and an insertion rod (18) are fixed to the end surface of the threaded handle (4); a limiting hole (14) is provided on the surface of the outer plate (5); a movable ball (16) is provided on the inner surface of the outer plate (5); and a second mounting hole (17) is provided on the surface of the inner plate (15).

2. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: The ball sliding grooves (7) are provided in two groups, and the two groups of ball sliding grooves (7) are respectively located on both sides of the surface of the guide rod (3). The first mounting hole (8) is located at the central axis of the guide rod (3). A plurality of first mounting holes (8) are provided, and the plurality of first mounting holes (8) are linearly distributed at equal distances on the surface of the guide rod (3).

3. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: A plurality of movable balls (16) are provided, and the plurality of movable balls (16) are linearly distributed at equal intervals on the inner surface of the outer plate (5), and the movable balls (16) and the ball slide grooves (7) are matched.

4. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: The inner plate (15) can be inserted into the slot (9), and the insertion rod (18) can be inserted into the insertion hole (10). The inner plate (15) and the outer plate (5) are each provided with two groups, and the two groups of inner plates (15) and outer plates (5) are symmetrically distributed about the central axis of the threaded handle (4). The insertion rod (18) is provided with two groups, and the two groups of insertion rods (18) are located between the two groups of inner plates (15) and outer plates (5), and the insertion rod (18) is located at the central axis of the threaded handle (4).

5. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: The limiting holes (14) and the second mounting holes (17) are arranged in the same manner, and the limiting holes (14), the first mounting holes (8) and the second mounting holes (17) are connected by means of pentagonal bolts (6).

6. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: One end of the support spring (13) is fixedly connected to the bottom wall of the insertion hole (10), and the other end of the support spring (13) is fixedly connected to the stop block (11), and the outer wall of the stop block (11) and the inner wall of the insertion hole (10) are slidably connected.

7. The threaded shank carbide left-handed guide reamer according to claim 1, characterized in that: When the support spring (13) is not deformed, the stop block (11) is close to the end of the insertion hole (10), a stop groove (12) is provided on the surface of the stop block (11), and the end surface of the insertion rod (18) is chamfered so that the end surface of the insertion rod (18) can be embedded in the stop groove (12).

Images