Adjustable reamer

Abstract

The utility model discloses an adjustable reamer, and relates to the technical field of cutters, the adjustable reamer comprises a reamer handle body, the inner wall of the reamer handle body is slidably connected with a moving rod, the interior of the reamer handle body and one end of the moving rod are jointly provided with a telescopic mechanism, and one end of the moving rod is fixedly connected with a connecting pipe; the end, back on to the moving rod, of the connecting pipe is fixedly connected with a tool bit body, one end of the tool bit body and the interior of the connecting pipe are jointly provided with an adjusting mechanism, the adjusting mechanism comprises a support, one end of the support is fixedly connected with the inner wall of the connecting pipe, the lower portion of one end of the support is fixedly connected with a first support, and the top end of the first support is fixedly connected with a first motor; according to the reamer, by arranging the adjusting mechanism, the effect of conveniently and rapidly changing the shape of the reamer head in the reamer is achieved, the use convenience of the reamer is improved, by arranging the telescopic mechanism, the effect of conveniently adjusting the length of the reamer handle is achieved, and the practicability of the reamer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cutting tools, and in particular to an adjustable reamer. Background Art

[0002] A reamer is a rotary tool that removes a thin layer of metal from the surface of a machined hole. It is mainly used for expanding or repairing holes. It generally has one or more teeth and is a rotary finishing tool with a straight or spiral edge.

[0003] According to the announcement number: CN213163446U, an adjustable reamer is disclosed. This technology discloses "including a taper handle and a blade, a telescopic device is fixed between the taper handle and the blade, the telescopic device includes a sleeve and a sliding shaft, the sleeve is fixed on the end face of the taper handle, and the sliding shaft is fixed on the end face of the blade; the sleeve is sleeved with the sliding shaft, and a positioning device is provided on the telescopic device, etc., which has the technical effects of adjusting the tool length through the positioning device during use to complete the processing of holes of different depths, etc.";

[0004] With respect to the above-mentioned related technologies, the inventor believes that the existing reamer structure is relatively simple in configuration and does not have an adjustment mechanism. Since the shapes of the cutter heads required for processing different workpieces during the use of the reamer are different, the cutter head body needs to be replaced. This method of changing the shape of the cutter head is relatively troublesome and there is no specific adjustment mechanism, which makes it inconvenient to quickly change the shape of the cutter head in the reamer, thereby reducing the convenience of using the reamer. Secondly, the existing reamer structure does not have a telescopic mechanism. Since when the reamer is used to process the workpiece, the length of the shank body in the reamer structure needs to be adjusted so that the reamer body can be better used, there is no telescopic component, which makes it inconvenient to adjust the length of the shank, thereby reducing the practicality of the reamer. Utility Model Content

[0005] The purpose of the present application is to provide an adjustable reamer to improve the problem that it is inconvenient to quickly change the shape of the cutter head in the reamer and to adjust the length of the cutter handle.

[0006] The adjustable reamer provided by the present application adopts the following technical solution: the adjustable reamer comprises a handle body, the inner wall of the handle body is slidably connected to a moving rod, the interior of the handle body and one end of the moving rod are jointly provided with a telescopic mechanism, one end of the moving rod is fixedly connected to a connecting tube, the end of the connecting tube facing away from the moving rod is fixedly connected to a cutter head body, one end of the cutter head body and the interior of the connecting tube are jointly provided with an adjustment mechanism, the adjustment mechanism comprises a bracket, one end of the bracket is fixedly connected to the inner wall of the connecting tube, the lower part of one end of the bracket is fixedly connected to a first support, the top end of the first support is fixedly connected to There is a first motor, and the output end of the first motor passes through one end of the bracket and is fixedly connected to a worm, the end of the worm facing away from the output end of the first motor is rotatably connected to an inner wall of one side of the bracket, the outer surface of the worm is meshingly connected to a worm wheel, one end of the worm wheel is fixedly connected to a long rod, and the end of the long rod facing away from the worm wheel is fixedly connected to a rotating column, one end of the cutter head body is provided with a circular hole for use with the rotating column, and the end of the rotating column facing away from the long rod passes through the circular hole, six connecting rods are fixedly connected to the outer surface of the rotating column, and the ends of the two connecting rods facing away from the rotating column are fixedly connected to a second cutter head for use with the cutter head body.

[0007] By adopting the above technical solution, the handle body in the reamer is first adjusted to a suitable length through the telescopic mechanism, and then when the shape of the cutter head body needs to be changed, the first motor is started, and the output end of the first motor drives the worm transmission, the worm transmission drives the worm wheel to rotate, the worm wheel rotation drives the long rod to rotate, the long rod rotation drives the rotating column to rotate, the rotating column rotation drives the connecting rod to rotate, and the connecting rod rotation drives the second cutter head to rotate a certain angle, so that the shape of the cutter head body can be quickly changed, thereby improving the convenience of using the reamer.

[0008] Optionally, the telescopic mechanism includes a second support, one end of the second support is fixedly connected to the inner wall of the handle body, the top of the second support is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the first bevel gear, the outer surface of the first bevel gear is meshingly connected to the second bevel gear, and one end of the second bevel gear is fixedly connected to a round rod, the end of the round rod away from the second bevel gear is rotatably connected to the inner wall of one side of the handle body, the end of the second bevel gear facing away from the round rod is fixedly connected to a threaded rod, one end of the moving rod is provided with a threaded groove for cooperating with the threaded rod, the outer surface of the moving rod is fixedly connected to two limit blocks, and the inner wall of the handle body is provided with two limit grooves for cooperating with the limit blocks.

[0009] By adopting the above technical solution, the second motor is started, and the output end of the second motor drives the first bevel gear to rotate, the rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the threaded rod to rotate, the rotation of the threaded rod is used in conjunction with the threaded groove in the moving rod to move the moving rod, and the limit groove is used in conjunction with the limit block to facilitate the guiding and limiting of the moving rod when it moves, thereby facilitating the adjustment of the length of the shank body in the reamer to facilitate the use of the reamer.

[0010] Optionally, the six second cutting heads are distributed in a circular array.

[0011] By adopting the above technical solution, the six second cutter heads can be used in conjunction with the cutter head body.

[0012] Optionally, the outer surface of the rotating column fits with the inner wall of the circular hole, a limiting ring is fixedly mounted on the outer surface of the rotating column, and a groove for cooperating with the limiting ring is opened on the inner wall of the circular hole, and the outer surface of the limiting ring is rotatably fitted with the inner wall of the groove.

[0013] By adopting the above technical solution, the groove is used in conjunction with the limiting ring to facilitate limiting the position of the rotating column in the circular hole.

[0014] Optionally, one end of the worm wheel is fixedly connected to a rotating rod, and an end of the rotating rod facing away from the worm wheel is rotatably connected to an inner wall of one side of the bracket.

[0015] By adopting the above technical solution, the rotating rod is used in conjunction with the worm gear, which facilitates the positioning of the worm gear.

[0016] Optionally, the outer surface teeth of the first helical gear have the same shape as the outer surface teeth of the second helical gear.

[0017] By adopting the above technical solution, the first helical gear and the second helical gear can be used in coordination with each other.

[0018] Optionally, outer surfaces of the two limiting blocks are slidably connected to inner walls of the two limiting grooves respectively.

[0019] By adopting the above technical solution, it is convenient to use the limit groove in conjunction with the limit block, so as to provide better limit guidance for the moving rod when it moves.

[0020] Optionally, the movable rod is sleeved on the outer surface of the threaded rod, and the inner wall thread of the thread groove matches the outer surface thread of the threaded rod.

[0021] By adopting the above technical solution, the thread groove can be used in conjunction with the threaded rod to enable the movable rod to move.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The utility model starts the first motor by setting an adjustment mechanism, the output end of the first motor drives the worm transmission, the worm transmission drives the worm wheel to rotate, the rotation of the worm wheel drives the rotating column to rotate through the long rod, the rotation of the rotating column drives the connecting rod to connect the second cutter head to rotate a certain angle, so that the shape of the cutter head body is quickly changed, thereby facilitating the rapid change of the shape of the cutter head in the reamer, and improving the convenience of using the reamer;

[0024] 2. The utility model sets a telescopic mechanism and starts the second motor. The output end of the second motor drives the first bevel gear to rotate. The rotation of the first bevel gear drives the second bevel gear to rotate. The rotation of the second bevel gear drives the threaded rod to rotate and cooperate with the threaded groove in the moving rod to make the moving rod move, thereby facilitating the adjustment of the length of the tool handle and improving the practicality of the reamer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model.

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0027] Figure 3 It is a schematic diagram of the structure of the regulating mechanism of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the adjustment mechanism of the utility model from another viewing angle.

[0029] Figure 5 It is a schematic diagram of the telescopic mechanism structure of the utility model.

[0030] In the figure, 1, the handle body; 2, the adjusting mechanism; 22, the limiting ring; 23, the rotating column; 24, the connecting rod; 25, the second cutting head; 26, the round hole; 27, the groove; 28, the bracket; 29, the worm; 201, the first support; 202, the first motor; 203, the worm wheel; 204, the rotating rod; 205, the long rod; 3, the telescopic mechanism; 31, the first bevel gear; 32, the second motor; 33, the second support; 34, the limiting groove; 35, the threaded groove; 36, the limiting block; 37, the threaded rod; 38, the second bevel gear; 39, the round rod; 4, the moving rod; 5, the connecting tube; 6, the cutting head body. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 5 , further details of this application are given.

[0032] Example 1

[0033] Adjustable reamer, see Figure 1 and Figure 2and Figure 3 and Figure 4 , including a handle body 1, the inner wall of the handle body 1 is slidably connected with a moving rod 4, the interior of the handle body 1 and one end of the moving rod 4 are jointly provided with a telescopic mechanism 3, the telescopic mechanism 3 serves to facilitate the adjustment of the length of the handle body 1, one end of the moving rod 4 is fixedly connected with a connecting tube 5, the connecting tube 5 serves as a connection, the end of the connecting tube 5 facing away from the moving rod 4 is fixedly connected with a cutter head body 6, one end of the cutter head body 6 and the interior of the connecting tube 5 are jointly provided with an adjusting mechanism 2, the adjusting mechanism 2 serves to facilitate the change of the shape of the cutter head body 6, the adjusting mechanism 2 includes a bracket 28, the bracket 28 serves as a support, one end of the bracket 28 is fixedly connected to the inner wall of the connecting tube 5, the lower part of one end of the bracket 28 is fixedly connected with a first support 201, the first support 201 serves to support a first motor 202, the top of the first support 201 is fixedly connected with a first motor 202, the first motor 202 serves to drive the adjusting mechanism 2, and the output end of the first motor 202 passes through one end of the bracket 28 and is fixedly connected with a worm 29, which is convenient for the first motor The output end of the motor 202 drives the worm 29 to drive, and the end of the worm 29 facing away from the output end of the first motor 202 is rotatably connected to the inner wall of one side of the bracket 28. The outer surface of the worm 29 is meshed with a worm wheel 203, which is convenient for the worm 29 to drive the worm wheel 203 to rotate. One end of the worm wheel 203 is fixedly connected to a long rod 205, which is convenient for the rotation of the worm wheel 203 to drive the long rod 205 to rotate. The end of the long rod 205 facing away from the worm wheel 203 is fixedly connected to a rotating column 23, which is convenient for the rotation of the long rod 205 to drive the rotating column 23 to rotate. A circular hole 26 for cooperating with the rotating column 23 is opened at one end, and the end of the rotating column 23 facing away from the long rod 205 passes through the circular hole 26. Six connecting rods 24 are fixedly connected to the outer surface of the rotating column 23, so that the rotating column 23 can drive the connecting rods 24 to rotate, and the ends of the two connecting rods 24 facing away from the rotating column 23 are fixedly connected with a second cutter head 25 for cooperating with the cutter head body 6, so that the connecting rod 24 can drive the second cutter head 25 to rotate a certain angle, so that the shape of the cutter head body 6 can be quickly changed, thereby improving the convenience of using the reamer.

[0034] Reference Figure 3 The six second cutting heads 25 are distributed in a circular array, so that the second cutting heads 25 can be better used in conjunction with the cutting head body 6.

[0035] Reference Figure 3The outer surface of the rotating column 23 fits with the inner wall of the circular hole 26, and the outer surface of the rotating column 23 is fixedly sleeved with the limiting ring 22, and the inner wall of the circular hole 26 is provided with a groove 27 used to cooperate with the limiting ring 22. The outer surface of the limiting ring 22 is rotationally fitted with the inner wall of the groove 27, and the groove 27 is used in conjunction with the limiting ring 22 to facilitate the position of the rotating column 23 in the circular hole 26, thereby preventing the rotating column 23 from moving horizontally during rotation.

[0036] Reference Figure 4 One end of the worm gear 203 is fixedly connected to a rotating rod 204, and the end of the rotating rod 204 facing away from the worm gear 203 is rotatably connected to an inner wall of one side of the bracket 28. The rotating rod 204 cooperates with the worm gear 203 to facilitate the positioning of the worm gear 203.

[0037] The implementation principle of the embodiment of the present application is as follows: first, the handle body 1 is adjusted to a suitable length through the telescopic mechanism 3, and then the first motor 202 is started through the adjusting mechanism 2. The output end of the first motor 202 drives the worm 29 to transmit, and the worm 29 transmits and drives the worm wheel 203 to rotate. The rotation of the worm wheel 203 drives the long rod 205 to rotate, and the rotation of the long rod 205 drives the rotating column 23 to rotate. At the same time, the groove 27 is used in conjunction with the limiting ring 22 to facilitate the position of the rotating column 23 in the circular hole 26. The rotation of the rotating column 23 drives the connecting rod 24 to rotate, and the rotation of the connecting rod 24 drives the second cutter head 25 to rotate a certain angle, and the second cutter head 25 is rotated to a suitable direction, so that the shape of the cutter head body 6 is quickly changed, thereby improving the convenience of using the reamer.

[0038] Example 2

[0039] The difference between this embodiment and embodiment 1 is that:

[0040] Reference Figure 5The telescopic mechanism 3 includes a second support 33, which plays a supporting role. One end of the second support 33 is fixedly connected to the inner wall of the handle body 1, and the top of the second support 33 is fixedly connected to the second motor 32. The second motor 32 plays the role of driving the telescopic mechanism 3, and the output end of the second motor 32 is fixedly connected to the first bevel gear 31, so that the output end of the second motor 32 drives the first bevel gear 31 to rotate. The outer surface of the first bevel gear 31 is meshed with the second bevel gear 38, so that the rotation of the first bevel gear 31 drives the second bevel gear 38 to rotate, and one end of the second bevel gear 38 is fixedly connected to a round rod 39, and the end of the round rod 39 away from the second bevel gear 38 is connected to the inner wall of the handle body 1 on one side. The wall is rotatably connected, and the round rod 39 is convenient for positioning the second bevel gear 38. The end of the second bevel gear 38 facing away from the round rod 39 is fixedly connected with a threaded rod 37, so that the second bevel gear 38 can rotate to drive the threaded rod 37 to rotate. One end of the movable rod 4 is provided with a threaded groove 35 used in conjunction with the threaded rod 37, so that the threaded rod 37 can rotate and cooperate with the threaded groove 35 to move the movable rod 4. The movement of the movable rod 4 changes the length of the tool handle body 1. Two limit blocks 36 are fixedly connected to the outer surface of the movable rod 4, and two limit grooves 34 used in conjunction with the limit blocks 36 are provided on the inner wall of the tool handle body 1. The limit grooves 34 are used in conjunction with the limit blocks 36 to facilitate the guiding and limiting of the movable rod 4 when it moves.

[0041] Reference Figure 5 The outer surface teeth of the first bevel gear 31 and the outer surface teeth of the second bevel gear 38 have the same shape, which facilitates the use of the first bevel gear 31 and the second bevel gear 38.

[0042] Reference Figure 5 The outer surfaces of the two limiting blocks 36 are respectively slidably connected to the inner walls of the two limiting grooves 34 , so that the limiting grooves 34 can be used in conjunction with the limiting blocks 36 .

[0043] Reference Figure 5 The movable rod 4 is sleeved on the outer surface of the threaded rod 37 , and the inner wall thread of the threaded groove 35 matches the outer surface thread of the threaded rod 37 , so that the threaded groove 35 can be used in conjunction with the threaded rod 37 .

[0044] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable reamer, comprising a handle body (1), characterized in that: The inner wall of the handle body (1) is slidably connected to a moving rod (4); a telescopic mechanism (3) is provided inside the handle body (1) and one end of the moving rod (4); a connecting tube (5) is fixedly connected to one end of the moving rod (4); a cutter head body (6) is fixedly connected to one end of the connecting tube (5) facing away from the moving rod (4); and an adjustment mechanism (2) is provided at one end of the cutter head body (6) and inside the connecting tube (5); The regulating mechanism (2) comprises a bracket (28), one end of the bracket (28) is fixedly connected to the inner wall of the connecting pipe (5), the lower part of one end of the bracket (28) is fixedly connected to a first support (201), the top of the first support (201) is fixedly connected to a first motor (202), and the output end of the first motor (202) passes through one end of the bracket (28) and is fixedly connected to a worm (29), one end of the worm (29) facing away from the output end of the first motor (202) is rotatably connected to an inner wall of one side of the bracket (28), and the outer surface of the worm (29) is meshingly connected to a worm wheel (202). 03), one end of the worm gear (203) is fixedly connected to a long rod (205), and the end of the long rod (205) facing away from the worm gear (203) is fixedly connected to a rotating column (23), one end of the cutter head body (6) is provided with a circular hole (26) for use with the rotating column (23), and the end of the rotating column (23) facing away from the long rod (205) passes through the circular hole (26), the outer surface of the rotating column (23) is fixedly connected to six connecting rods (24), and the ends of the two connecting rods (24) facing away from the rotating column (23) are fixedly connected to a second cutter head (25) for use with the cutter head body (6).

2. The adjustable reamer according to claim 1, characterized in that: The telescopic mechanism (3) comprises a second support (33), one end of the second support (33) is fixedly connected to the inner wall of the handle body (1), the top end of the second support (33) is fixedly connected to a second motor (32), and the output end of the second motor (32) is fixedly connected to a first bevel gear (31), the outer surface of the first bevel gear (31) is meshingly connected to a second bevel gear (38), and one end of the second bevel gear (38) is fixedly connected to a round rod (39), and the round rod (3 9) One end away from the second bevel gear (38) is rotatably connected to the inner wall of one side of the handle body (1); one end of the second bevel gear (38) facing away from the round rod (39) is fixedly connected to a threaded rod (37); one end of the movable rod (4) is provided with a threaded groove (35) for use with the threaded rod (37); the outer surface of the movable rod (4) is fixedly connected with two limit blocks (36); and the inner wall of the handle body (1) is provided with two limit grooves (34) for use with the limit blocks (36).

3. The adjustable reamer according to claim 1, characterized in that: The six second blade heads (25) are distributed in a circular array.

4. The adjustable reamer according to claim 1, characterized in that: The outer surface of the rotating column (23) fits with the inner wall of the circular hole (26); a limiting ring (22) is fixedly sleeved on the outer surface of the rotating column (23); and a groove (27) for matching with the limiting ring (22) is provided on the inner wall of the circular hole (26); the outer surface of the limiting ring (22) fits with the inner wall of the groove (27) in a rotatable manner.

5. The adjustable reamer according to claim 1, characterized in that: One end of the worm wheel (203) is fixedly connected to a rotating rod (204), and one end of the rotating rod (204) facing away from the worm wheel (203) is rotatably connected to an inner wall of one side of the bracket (28).

6. The adjustable reamer according to claim 2, characterized in that: The teeth on the outer surface of the first bevel gear (31) and the teeth on the outer surface of the second bevel gear (38) have the same shape.

7. The adjustable reamer according to claim 2, characterized in that: The outer surfaces of the two limiting blocks (36) are respectively slidably connected to the inner walls of the two limiting grooves (34).

8. The adjustable reamer according to claim 2, characterized in that: The moving rod (4) is sleeved on the outer surface of the threaded rod (37), and the inner wall thread of the threaded groove (35) matches the outer surface thread of the threaded rod (37).

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