Polycrystalline diamond adjustable precision reamer

Abstract

The utility model discloses a polycrystalline diamond adjustable precision reamer, which belongs to the technical field of reamers and comprises a shell, an ejector block is arranged at the top of the shell, a sliding groove, a second hole groove and a first hole groove are arranged on the shell, and an adjusting block is arranged in the sliding groove. According to the polycrystalline diamond adjustable precision reamer, a rotating rod is rotated to enable a first bevel gear in an adjusting block to rotate through cooperation of a transmission rod, and the first bevel gear is meshed with a second bevel gear, so that a guide rod drives a lead screw to rotate, and the lead screw rotates to enable a square block to move horizontally; and then, the position of the adjusting block is adjusted, preliminary limiting is carried out through assistance of the limiting device, then the rotating rod is rotated in the reverse direction so that the square block can be inserted into the second hole groove, and therefore height adjustment of the reamer body is achieved. Therefore, the precision reamer can meet the requirement for machining workpieces of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of reamers, and particularly relates to a polycrystalline diamond adjustable precision reamer. Background Art

[0002] A reamer is a rotary tool used to remove a thin layer of metal from the surface of a machined hole, with a straight edge or a spiral edge, mainly used for reaming or hole finishing. At present, polycrystalline diamond (PCD) reamers are widely used in the hole machining of non-ferrous metals. Due to the limited movement of some machine tools, according to the different workpieces to be machined, tools with the same tool head but different lengths need to be replaced to overcome the limitations of the machine tool movement.

[0003] The existing precision reamers are generally integrally formed with the tool shank and the tool head, and their effective length is often fixed. Therefore, different length reamers need to be frequently replaced during machining, which greatly reduces the practicability of the precision reamer and affects the machining efficiency of subsequent workpieces. Summary of the Utility Model

[0004] In order to overcome the above defects, the utility model provides a polycrystalline diamond adjustable precision reamer, which solves the problem that the traditional precision reamer is often integrated and its effective length is often fixed, making it inconvenient to adjust the length according to the specific requirements of the workpiece.

[0005] To achieve the above object, the utility model provides the following technical solution: A polycrystalline diamond adjustable precision reamer, comprising a housing, a top block is arranged at the top of the housing, a chute, a second hole groove and a first hole groove are opened on the housing, an adjusting block is arranged in the chute, a fixing device and a limiting device are arranged on the adjusting block, a reamer body is arranged at the bottom of the adjusting block, an auxiliary block is arranged at the bottom of the housing, and a moving groove is opened in the adjusting block;

[0006] The fixing device includes a rotating rod, a transmission rod is arranged at one end of the rotating rod, a first bevel gear is arranged at one end of the transmission rod, a second bevel gear meshing with the first bevel gear is arranged on one side of the first bevel gear, a guide rod is arranged on the second bevel gear, screw rods are arranged at both ends of the guide rod, and a square block is arranged on the screw rods.

[0007] As a further solution of the utility model: The top block and the auxiliary block are respectively fixedly connected to both ends of the housing, the adjusting block is slidably connected in the chute, the reamer body is fixedly connected to the bottom of the adjusting block, and the reamer body is inserted into the housing.

[0008] As a further solution of the utility model: The transmission rod and the guide rod are both inserted into the adjusting block, one end of the transmission rod penetrates through the housing and the adjusting block and is fixedly connected to the rotating rod, and an anti-slip groove is opened on the rotating rod.

[0009] As a further solution of the present utility model: the other end of the transmission rod is fixedly connected to the first bevel gear, the second bevel gear is fixedly connected to the guide rod, the lead screw is fixedly connected to both ends of the guide rod, and the square block is threadedly connected to the lead screw.

[0010] As a further solution of the present utility model: the square block is slidably connected in the adjusting block, one end of the square block penetrates through the adjusting block and is inserted into the second hole slot, and the limiting device includes a female block which is slidably connected in the moving groove.

[0011] As a further solution of the present utility model: both ends of the female block are respectively fixedly connected with a spring and an arc-shaped column, the spring is installed in the moving groove, and one end of the arc-shaped column penetrates through the adjusting block and is inserted into the first hole slot.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this polycrystalline diamond adjustable precision reamer, by setting the rotating rod, transmission rod, first bevel gear, second bevel gear, guide rod, lead screw, and square block, rotating the rotating rod through the cooperation of the transmission rod enables the first bevel gear in the adjusting block to rotate. And the first bevel gear meshes with the second bevel gear, so that the guide rod drives the lead screw to rotate, and the rotation of the lead screw makes the square block move horizontally. Thus, the square block is disengaged from the insertion into the second hole slot, then the position of the adjusting block is adjusted, and preliminary limitation is carried out with the assistance of the limiting device. Then, rotating the rotating rod in the reverse direction makes the square block inserted into the second hole slot. Therefore, the height adjustment of the reamer body is realized, so that this precision reamer can meet the requirements for processing workpieces of different specifications.

[0014] 2. For this polycrystalline diamond adjustable precision reamer, by setting the auxiliary block, first hole slot, reamer body, female block, arc-shaped column, and spring, when the square block is disengaged from the insertion into the second hole slot, it provides support. And with the assistance of the auxiliary block, the rotating rod is pushed to adjust the height of the adjusting block in the sliding groove. And due to the elastic force of the spring, through the cooperation of the female block, the arc-shaped column is inserted into the first hole slot. Therefore, the purpose of auxiliary fixation of the adjusting block is achieved, which is convenient for the subsequent insertion of the square block into the second hole slot. Thus, the convenience of adjusting the reamer body is greatly improved, and the practicability of this precision reamer is greatly enhanced. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a sectional view of the housing of the present utility model;

[0017] Figure 3 It is a schematic diagram of the fixing device of the present utility model;

[0018] Figure 4 Schematic diagram of the limit device of the present utility model;

[0019] In the figure: 1, housing; 2, top block; 3, moving groove; 4, auxiliary block; 5, sliding groove; 6, fixing device; 601, rotating rod; 602, transmission rod; 603, bevel gear one; 604, bevel gear two; 605, guide rod; 606, lead screw; 607, square block; 7, hole slot one; 8, reamer body; 9, limit device; 901, female block; 902, arc-shaped column; 903, spring; 10, hole slot two; 11, adjusting block; Specific embodiments

[0020] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0021] As Figures 1-4 shown, the present utility model provides a technical solution: a polycrystalline diamond adjustable precision reamer, including a housing 1, a top block 2 is arranged at the top of the housing 1, the top block 2 and the auxiliary block 4 are respectively fixedly connected to both ends of the housing 1, an adjusting block 11 is slidably connected in the sliding groove 5, a reamer body 8 is fixedly connected to the bottom of the adjusting block 11, and the reamer body 8 is inserted into the housing 1; by sliding the adjusting block 11 in the sliding groove 5, the length of the reamer body 8 can be adjusted to facilitate the processing of workpieces of different specifications.

[0022] The housing 1 is provided with a sliding groove 5, a hole slot two 10 and a hole slot one 7, the sliding groove 5 is provided with an adjusting block 11, the adjusting block 11 is provided with a fixing device 6 and a limit device 9, the bottom of the adjusting block 11 is provided with a reamer body 8, the bottom of the housing 1 is provided with an auxiliary block 4, a moving groove 3 is opened in the adjusting block 11, the fixing device 6 includes a rotating rod 601, one end of the rotating rod 601 is provided with a transmission rod 602, the transmission rod 602 and the guide rod 605 are both inserted into the adjusting block 11, one end of the transmission rod 602 penetrates through the housing 1 and the adjusting block 11 and is fixedly connected to the rotating rod 601, and an anti-slip groove is opened on the rotating rod 601; the anti-slip groove on the rotating rod 601 facilitates the staff to rotate it, and the rotation of the rotating rod 601 is through the cooperation of the transmission rod 602, so that the bevel gear one 603 rotates.

[0023] The other end of the transmission rod 602 is fixedly connected to the bevel gear one 603, the bevel gear two 604 is fixedly connected to the guide rod 605, the lead screw 606 is fixedly connected to both ends of the guide rod 605, and the square block 607 is threadedly connected to the lead screw 606; the rotation of the bevel gear one 603 is through the cooperation of the bevel gear two 604, so that the guide rod 605 drives the lead screw 606 to rotate.

[0024] One end of the transmission rod 602 is provided with a first bevel gear 603. One side of the first bevel gear 603 is provided with a second bevel gear 604 meshing with it. A guide rod 605 is arranged on the second bevel gear 604. Both ends of the guide rod 605 are provided with lead screws 606. A square block 607 is arranged on the lead screw 606. The square block 607 is slidably connected in the adjusting block 11. One end of the square block 607 penetrates through the adjusting block 11 and is inserted into the second hole slot 10. The limiting device 9 includes a female block 901. The female block 901 is slidably connected in the moving groove 3. The rotation of the lead screw 606 enables the square block 607 to move horizontally, and according to the rotation direction of the lead screw 606, the telescopic movement of the square block 607 is controlled.

[0025] Both ends of the female block 901 are respectively fixedly connected with a spring 903 and an arc-shaped column 902. The spring 903 is installed in the moving groove 3. One end of the arc-shaped column 902 penetrates through the adjusting block 11 and is inserted into the first hole slot 7. The elastic force of the spring 903 is used to drive the female block 901 to drive the arc-shaped column 902 to be inserted into the first hole slot 7, thereby assisting in fixing the adjusting block 11 and greatly improving the stability of the adjusting block 11.

[0026] The working principle of the present utility model is as follows: First, rotate the rotating rod 601 through the cooperation of the transmission rod 602, so that the first bevel gear 603 drives the lead screw 606 to rotate. The rotation of the lead screw 606 enables the square block 607 to be disengaged from the insertion into the second hole slot 10. Then, the height of the adjusting block 11 is adjusted. And through the elastic force of the spring 903 and the cooperation of the female block 901, the arc-shaped column 902 is inserted into the first hole slot 7. Therefore, the adjusting block 11 is assisted in fixing. Then, rotate the rotating rod 601, so that the square block 607 is inserted into the second hole slot 10 and the position of the adjusting block 11 is fixed.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0028] The above has made a detailed description of the preferred embodiment of this patent. However, this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the gist of this patent.

Claims

1. A polycrystalline diamond adjustable precision reamer, comprising a housing (1), characterized in that: A top block (2) is arranged on the top of the shell (1), a slide groove (5), a second hole groove (10) and a first hole groove (7) are provided on the shell (1), an adjustment block (11) is arranged in the slide groove (5), a fixing device (6) and a limiting device (9) are arranged on the adjustment block (11), a reamer body (8) is arranged at the bottom of the adjustment block (11), an auxiliary block (4) is arranged at the bottom of the shell (1), and a movable groove (3) is provided in the adjustment block (11); The fixing device (6) comprises a rotating rod (601), a transmission rod (602) being arranged at one end of the rotating rod (601), a bevel gear 1 (603) being arranged at one end of the transmission rod (602), a bevel gear 2 (604) being arranged on one side of the bevel gear 1 (603) and meshing with the bevel gear 1 (603), a guide rod (605) being arranged on the bevel gear 2 (604), screw rods (606) being arranged at both ends of the guide rod (605), and a square block (607) being arranged on the screw rod (606).

2. The polycrystalline diamond adjustable precision reamer according to claim 1, characterized in that: The top block (2) and the auxiliary block (4) are respectively fixedly connected to the two ends of the housing (1); the adjustment block (11) is slidably connected in the slide groove (5); the reamer body (8) is fixedly connected to the bottom of the adjustment block (11), and the reamer body (8) is plugged into the housing (1).

3. The polycrystalline diamond adjustable precision reamer according to claim 2, characterized in that: The transmission rod (602) and the guide rod (605) are both plugged into the adjustment block (11); one end of the transmission rod (602) passes through the housing (1) and the adjustment block (11) and is fixedly connected to the rotating rod (601); and an anti-slip groove is provided on the rotating rod (601).

4. The polycrystalline diamond adjustable precision reamer according to claim 3, characterized in that: The other end of the transmission rod (602) is fixedly connected to the bevel gear 1 (603), the bevel gear 2 (604) is fixedly connected to the guide rod (605), the screw rod (606) is fixedly connected to both ends of the guide rod (605), and the square block (607) is threadedly connected to the screw rod (606).

5. The polycrystalline diamond adjustable precision reamer according to claim 4, characterized in that: The square block (607) is slidably connected in the adjustment block (11); one end of the square block (607) passes through the adjustment block (11) and is plugged into the second hole groove (10); the limiting device (9) comprises a mother block (901); and the mother block (901) is slidably connected in the movable groove (3).

6. The polycrystalline diamond adjustable precision reamer according to claim 5, characterized in that: The two ends of the mother block (901) are respectively fixedly connected with a spring (903) and an arc column (902), the spring (903) is installed in the movable groove (3), and one end of the arc column (902) passes through the adjustment block (11) and is inserted into the hole groove (7).

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