Drilling and grinding machine for precision machine manufacturing

Abstract

The utility model provides a drilling and grinding machine for manufacturing precision machinery, which comprises a driving motor, a drill bit clamp is fixedly connected to the lower end of an output shaft of the driving motor, a rotating rod is clamped to the lower end of the drill bit clamp, a drill bit is integrally connected to the lower end of the rotating rod, and the drilling and grinding machine is characterized in that a self-adjusting grinding assembly is detachably and fixedly connected to the outer wall of the rotating rod. Due to the arrangement of the fixing sleeve, the telescopic rod, the base plate, the grinding block and the spring, the effect of automatically adjusting the grinding tool is achieved, the grinding tool can be attached to a workpiece all the time, and then the problem that the grinding tool is wasted is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling and grinding machines, in particular to a drilling and grinding machine for precision machinery manufacturing. Background Art

[0002] A drilling and grinding machine for precision machinery manufacturing is a mechanical processing equipment that integrates drilling and grinding. For example, a dual-purpose drilling and grinding device for precision machinery manufacturing with publication number CN106736574B comprises: a bracket, a motor is arranged on the bracket, the output shaft of the motor is connected to a drill bit, the drill bit comprises: a drilling section and a grinding section, the drilling section and the grinding section are integrally formed, the drilling section is located below the grinding section, the grinding section comprises a coarse grinding section and a fine grinding section, the coarse grinding section is located below the fine grinding section. There are still some problems in the actual use of the dual-purpose drilling and grinding device, such as: during the grinding process, the grinding tool will produce friction with the workpiece, so when the grinding tool is worn, its diameter will decrease, and the grinding tool can no longer continue to grind the workpiece, and then the grinding tool needs to be replaced when it has not been completely consumed, which causes a large waste of the grinding tool. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a drilling and grinding machine for precision machinery manufacturing, which can achieve the effect of automatically adjusting the grinding tool, so that the grinding tool and the workpiece are always in contact, thereby avoiding the problem of wasting the grinding tool.

[0004] The technical solution is as follows: a drilling and grinding machine for precision machinery manufacturing, including a driving motor, a drill clamp is fixedly connected to the lower end of the output shaft of the driving motor, and a rotating rod is clamped at the lower end of the drill clamp, wherein the lower end of the rotating rod is integrally connected to the drill bit, and is characterized in that a self-adjusting grinding component is detachably fixedly connected to the outer wall of the rotating rod.

[0005] Preferably, the self-adjusting grinding assembly includes a fixed sleeve, and the upper and lower parts on the left and right sides of the fixed sleeve are respectively fixedly connected with telescopic rods laterally, and the left end between the telescopic rods on the left and the right end between the telescopic rods on the right are respectively fixedly connected with base plates; grinding blocks are respectively inlaid at the outer openings of the base plates; springs are respectively sleeved on the outer sides of the telescopic rods, and one end of the springs is respectively pressed against the outer wall of the fixed sleeve, and the other end is respectively pressed against the inner side of the base plate; the lower end of the base plate is bent inward.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] In the utility model, the arrangement of the fixed sleeve, telescopic rod, base plate, grinding block and spring is conducive to achieving the effect of automatically adjusting the grinding tool, so that the grinding tool and the workpiece are always in contact, thereby avoiding the problem of wasting the grinding tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 It is a structural schematic diagram of the self-adjusting grinding assembly of the utility model.

[0010] In the figure:

[0011] 1. Driving motor; 2. Drill clamp; 3. Rotating rod; 4. Drill bit; 5. Self-adjusting grinding assembly; 51. Fixed sleeve; 52. Telescopic rod; 53. Base plate; 54. Grinding block; 55. Spring. DETAILED DESCRIPTION

[0012] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a drilling and grinding machine for precision machinery manufacturing includes a driving motor 1, the lower end of the output shaft of the driving motor 1 is fixedly connected to a drill clamp 2, and the lower end of the drill clamp 2 is clamped with a rotating rod 3, wherein the lower end of the rotating rod 3 is integrally connected with a drill bit 4.

[0013] One of the drilling and grinding machines for precision machinery manufacturing also includes a self-adjusting grinding component 5, and the self-adjusting grinding component 5 is detachably fixedly connected to the outer wall of the rotating rod 3, which is conducive to achieving the effect of automatically adjusting the grinding tool, so that the grinding tool and the workpiece are always in contact, thereby avoiding the problem of wasting the grinding tool.

[0014] Among them, the self-adjusting grinding assembly 5 includes a fixed sleeve 51, and the upper and lower parts on the left and right sides of the fixed sleeve 51 are respectively fixedly connected with telescopic rods 52 in a transverse manner, and the left end between the telescopic rods 52 on the left and the right end between the telescopic rods 52 on the right are respectively fixedly connected with base plates 53; grinding blocks 54 are respectively inlaid at the outer openings of the base plates 53; springs 55 are respectively sleeved on the outer sides of the telescopic rods 52, and one end of the spring 55 is respectively pressed against the outer wall of the fixed sleeve 51, and the other end is respectively pressed against the inner side of the base plate 53; the lower end of the base plate 53 is bent inward.

[0015] In this embodiment, specifically, the fixing sleeve 51 is detachably fixedly connected to the outer wall of the rotating rod 3 .

[0016] In this embodiment, specifically, the diameter of the circumscribed circle at the lower side of the bending section of the grinding block 54 is smaller than the diameter of the drill bit 4 .

[0017] In this embodiment, specifically, the diameter of the circumscribed circle of the vertical section of the substrate 53 is equal to the diameter of the drill bit 4 .

[0018] In this embodiment, specifically, the distance from the lower side of the bent section of the substrate 53 to the rotating rod 3 is greater than the thickness of the grinding block 54 .

[0019] In this embodiment, specifically, the substrate 53 is a stainless steel plate with an arc-shaped cross section.

[0020] In this embodiment, specifically, the grinding block 54 is a white corundum sand block, a brown corundum sand block, a silicon carbide sand block or a chrome corundum sand block with an arc-shaped cross section.

[0021] In this embodiment, specifically, the drill bit 4 is a twist drill.

[0022] When the utility model is used, the driving motor 1 can be installed on the driving mechanism of the external processing equipment. When drilling, the operator can turn on the driving mechanism and the driving motor 1, so that the driving mechanism drives the driving motor 1 to move toward the workpiece, and the driving motor 1 drives the drill 4 to rotate through the drill clamp 2 and the rotating rod 3. When the drill 4 penetrates the workpiece, because the lower end of the base plate 53 is bent inwardly, and because the diameter of the circumscribed circle on the lower side of the bent section of the grinding block 54 is smaller than the diameter of the drill 4, the lower side of the grinding block 54 will enter the hole. At this time, the grinding block 5 4 will be squeezed by the hole, and then the grinding block 54 will press the spring 55 through the base plate 53, and the telescopic rod 52 will shrink. When the grinding block 54 completely enters the hole, the spring 55 always provides thrust for the base plate 53, so that the base plate 53 will drive the grinding block 54 to always fit with the inner wall of the hole. Even if the grinding block 54 is worn, it will always fit with the inner wall of the hole, thereby achieving the effect of automatic adjustment of the mold, which can effectively avoid the problem that the mold cannot be used after being worn, and can effectively avoid the problem of a large amount of waste of the mold.

[0023] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A drilling and grinding machine for precision machinery manufacturing, comprising a driving motor (1), wherein the lower end of the output shaft of the driving motor (1) is fixedly connected to a drill clamp (2), and the lower end of the drill clamp (2) is clamped to a rotating rod (3), wherein the lower end of the rotating rod (3) is integrally connected to a drill bit (4), characterized in that: A self-adjusting grinding assembly (5) is detachably fixedly connected to the outer wall of the rotating rod (3).

2. The drilling and grinding machine for precision machinery manufacturing according to claim 1, characterized in that: The self-adjusting grinding assembly (5) comprises a fixed sleeve (51), and the upper and lower parts on the left and right sides of the fixed sleeve (51) are respectively transversely fixedly connected with telescopic rods (52), and the left end between the telescopic rods (52) on the left side and the right end between the telescopic rods (52) on the right side are respectively fixedly connected with base plates (53); the outer openings of the base plates (53) are respectively inlaid with grinding blocks (54); the outer sides of the telescopic rods (52) are respectively sleeved with springs (55), and one end of the springs (55) is respectively pressed against the outer wall of the fixed sleeve (51), and the other end is respectively pressed against the inner side of the base plate (53); the lower end of the base plate (53) is bent inward.

3. The drilling and grinding machine for precision machinery manufacturing according to claim 2, characterized in that: The fixed sleeve (51) is detachably fixedly connected to the outer wall of the rotating rod (3).

4. The drilling and grinding machine for precision machinery manufacturing according to claim 3, characterized in that: The diameter of the circumscribed circle on the lower side of the bending section of the grinding block (54) is smaller than the diameter of the drill bit (4).

5. The drilling and grinding machine for precision machinery manufacturing according to claim 4, characterized in that: The diameter of the circumscribed circle of the vertical section of the base plate (53) is equal to the diameter of the drill bit (4).

6. The drilling and grinding machine for precision machinery manufacturing according to claim 2, characterized in that: The distance from the lower side of the bent section of the base plate (53) to the rotating rod (3) is greater than the thickness of the grinding block (54).

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