Handheld metal material chamfering device

Abstract

The utility model discloses a handheld metal material chamfering device, and relates to the technical field of chamfering devices, the handheld metal material chamfering device comprises a machine body, a driving shaft of the machine body is connected with a tool bit through a rotating shaft, the rotating shaft is sleeved with a cylinder, the cylinder is fixedly connected to the machine body, a circular ring is arranged outside the cylinder in a sliding mode, and the circular ring is fixedly connected to the machine body. A supporting plate is fixedly connected to the outer circle of the circular ring, a sliding rod is slidably connected to the end, away from the circular ring, of the supporting plate, a first circular plate is fixedly connected to the end, away from the machine body, of the sliding rod, and a second circular plate is fixedly connected to the end, close to the machine body, of the sliding rod. According to the handheld metal material chamfering device, the machine body, the tool bit, the sliding rod, the first circular plate, the second circular plate and other structures are arranged, and the machine body is of a handheld structure, so that compared with a machine tool type fixed chamfering device in the prior art, the handheld metal material chamfering device is more convenient and flexible to operate and low in cost; and meanwhile, the chamfering device is not prone to shaking during use, and the chamfering precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chamfering devices, in particular to a handheld metal material chamfering device. Background Art

[0002] During the manufacturing process of metal workpieces, a large number of burrs are often left on the corners or edges of holes of the workpieces, and the edges of the workpieces need to be chamfered.

[0003] Most of the existing metal material chamfering devices are machine tool-type fixed devices, which occupy a large area and are high in cost, and are not suitable for small-batch chamfering processing.

[0004] Therefore, it is necessary to propose a handheld metal material chamfering device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a handheld metal material chamfering device to solve the problem that the existing metal material chamfering devices are mostly machine tool type fixed devices, occupy a large area and are high in cost, and are not suitable for small batch chamfering processing.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a handheld metal material chamfering device comprises a body, a driving shaft of the body is connected to a cutter head via a rotating shaft, a cylinder is sleeved on the outside of the rotating shaft, the cylinder is fixedly connected to the body, a ring is slidably provided on the outside of the cylinder, a support plate is fixedly connected to the outer ring of the ring, an end of the support plate away from the ring is slidably connected to a sliding rod, an end of the sliding rod away from the body is fixedly connected to a first circular plate, an end of the sliding rod close to the body is fixedly connected to a second circular plate, a first spring is sleeved on the outside of the sliding rod, one end of the first spring is fixedly connected to the second circular plate, and the other end of the first spring is fixedly connected to the support plate, a ring groove is provided on a side of the ring facing the body, and an adjustment component matching the ring groove is provided on the cylinder.

[0007] Preferably, the support plates are provided in plurality, and the plurality of support plates are evenly distributed around the circular ring.

[0008] Preferably, the adjustment assembly comprises a threaded sleeve and a ring block, wherein the threaded sleeve is threadedly connected to the outside of the cylinder, the ring block is rotatably connected to the inside of the ring groove, and the ring block is fixedly connected to the threaded sleeve.

[0009] Preferably, a circular groove is formed on a side of the threaded sleeve facing the machine body, and a positioning component matching the circular groove is provided on the cylinder.

[0010] Preferably, the positioning assembly includes a square plate, a third circular plate, an insertion rod and a second spring, the square plate is fixedly connected to the outer wall of the cylinder, the insertion rod is slidably connected to the square plate, the third circular plate is fixedly connected to one end of the insertion rod close to the body, the second spring is sleeved on the outside of the insertion rod, one end of the second spring is fixedly connected to the square plate, and the other end of the second spring is fixedly connected to the third circular plate.

[0011] Preferably, the circular groove is provided in plurality, and the plurality of circular grooves are evenly distributed around the axis of the threaded sleeve.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model is provided with a machine body, a cutter head, a slide bar, a first circular plate, a second circular plate and other structures. The machine body is a handheld structure. Compared with the machine tool type fixed chamfering device in the prior art, its operation is more convenient and flexible, and the cost is low. At the same time, the chamfering device is not easy to shake when in use, thereby improving the accuracy of chamfering;

[0014] 2. The utility model controls the maximum chamfer radius by providing structures such as a circular ring and an adjustment component, so that the radius is consistent when chamfering multiple circular holes;

[0015] 3. By setting the positioning component to cooperate with the threaded sleeve, the position of the threaded sleeve can be fixed to prevent the ring from sliding and improve the stability of the chamfering operation;

[0016] 4. The cylinder can block the debris generated by chamfering to prevent it from affecting the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a handheld metal material chamfering device of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the cylinder, the ring and the support plate of the utility model.

[0019] Figure 3 It is a schematic structural diagram of the sliding rod, the first circular plate and the second circular plate of the utility model.

[0020] Figure 4 It is a schematic diagram of the circular groove structure of the threaded sleeve of the utility model.

[0021] In the figure: 1, machine body; 2, rotating shaft; 3, cylinder; 4, cutter head; 5, circular ring; 6, support plate; 7, slide rod; 8, first circular plate; 9, second circular plate; 10, first spring; 11, threaded sleeve; 12, ring block; 13, ring groove; 14, square plate; 15, third circular plate; 16, plug rod; 17, second spring; 18, circular groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in 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.

[0023] The utility model provides Figure 1 to Figure 4 The handheld metal material chamfering device shown comprises a body 1, a drive shaft of the body 1 is connected to a cutter head 4 via a rotating shaft 2, and the body 1 is provided with structures such as a handle and a driving device. When in use, the body 1 drives the cutter head 4 to rotate via the rotating shaft 2 to perform a chamfering operation on a circular hole of a metal material. The body 1 is a handheld structure, and compared with the machine tool type fixed chamfering device in the prior art, its operation is more convenient and flexible, and the cost is low.

[0024] Considering that the hand-held chamfering device is prone to shaking during the chamfering operation, which affects the accuracy of the chamfering, in order to improve the accuracy of the chamfering, a cylinder 3 is sleeved on the outside of the rotating shaft 2, and the cylinder 3 is fixedly connected to the body 1. A ring 5 is slidably arranged on the outside of the cylinder 3. A support plate 6 is fixedly connected to the outer ring of the ring 5. The support plates 6 are provided in multiple numbers, and the multiple support plates 6 are evenly distributed around the ring 5. A sliding rod 7 is slidably connected to the end of the support plate 6 away from the ring 5, and a first circular plate 8 is fixedly connected to the end of the sliding rod 7 away from the body 1, and a second circular plate 9 is fixedly connected to the end of the sliding rod 7 close to the body 1. A first spring 10 is sleeved on the outside of the sliding rod 7, and one end of the first spring 10 is fixedly connected to the second circular plate 9, and the other end of the first spring 10 is fixedly connected to the support plate 6.

[0025] Specifically, refer to Figure 2 When the chamfering operation is performed, the first circular plate 8 first abuts against the metal material. As the cutter head 4 continues to move downward, the first circular plate 8 drives the slide bar 7 to slide upward, and the second circular plate 9 will adaptively stretch the first spring 10. When the cutter head 4 abuts against the inner wall of the circular hole, the body 1 drives the cutter head 4 to rotate through the rotating shaft 2 to perform the chamfering operation on the circular hole of the metal material. The cutter head 4 will continue to move downward, and the second circular plate 9 will continue to stretch the first spring 10.

[0026] The cooperation of the plurality of slide bars 7, the first circular plate 8, the second circular plate 9 and the first spring 10 makes it difficult for the chamfering device to shake during use, thereby improving the accuracy of the chamfering.

[0027] Considering that when chamfering multiple circular holes at the same time, in order to make the chamfer radius consistent, refer to Figure 2, the position of the circular ring 5 can be adjusted downward, and the downward adjustment of the circular ring 5 drives the support plate 6 to adjust downward synchronously. During the chamfering operation, the first circular plate 8 slides upward and abuts against the bottom end of the support plate 6, that is, the cutter head 4 can no longer expand the chamfer radius. Specifically: at this time, the bottom end of the first circular plate 8 is aligned with a certain position on the outer wall of the cutter head 4, and this position is the maximum chamfer radius.

[0028] The maximum chamfer radius is controlled so that the radius is consistent when chamfering multiple circular holes.

[0029] In addition, the cylinder 3 can shield the debris generated by chamfering to prevent it from affecting the operator.

[0030] The ring 5 is provided with an annular groove 13 on one side facing the body 1, and the cylinder 3 is provided with an adjustment assembly matched with the annular groove 13, and the adjustment assembly includes a threaded sleeve 11 and a ring block 12, the threaded sleeve 11 is threadedly connected to the outside of the cylinder 3, the ring block 12 is rotatably connected to the inside of the annular groove 13, and the ring block 12 is fixedly connected to the threaded sleeve 11. When the threaded sleeve 11 is rotated, since the threaded sleeve 11 is threadedly connected to the outside of the cylinder 3, the ring block 12 and the annular groove 13 can cooperate to drive the ring 5 to move up and down, thereby realizing the adjustment of the position of the ring 5.

[0031] In order to fix the position of the threaded sleeve 11 after rotation and adjustment, and to improve the stability of the chamfering operation, a circular groove 18 is provided on the side of the threaded sleeve 11 facing the body 1, and a positioning assembly matched with the circular groove 18 is provided on the cylinder 3, and the positioning assembly includes a square plate 14, a third circular plate 15, a plug rod 16 and a second spring 17. The square plate 14 is fixedly connected to the outer wall of the cylinder 3, the plug rod 16 is slidably connected to the square plate 14, and the third circular plate 15 is fixedly connected to one end of the plug rod 16 close to the body 1. The second spring 17 is sleeved on the outside of the plug rod 16, one end of the second spring 17 is fixedly connected to the square plate 14, and the other end of the second spring 17 is fixedly connected to the third circular plate 15. There are multiple circular grooves 18, and the multiple circular grooves 18 are evenly distributed around the axis of the threaded sleeve 11.

[0032] During operation, the third circular plate 15 is pulled toward the body 1, the rod 16 is pulled out from the circular groove 18, the threaded sleeve 11 is rotated, and the position of the ring 5 is adjusted. After the adjustment is completed, the third circular plate 15 is loosened, and the reset elastic force of the second spring 17 drives the rod 16 to reset and insert it into the corresponding circular groove 18, thereby fixing the position of the threaded sleeve 11, preventing the ring 5 from sliding, and improving the stability of the chamfering operation.

Claims

1. A handheld metal material chamfering device, comprising a body (1), characterized in that: The drive shaft of the machine body (1) is connected to a cutter head (4) via a rotating shaft (2); a cylinder (3) is sleeved on the outside of the rotating shaft (2); the cylinder (3) is fixedly connected to the machine body (1); a ring (5) is slidably arranged on the outside of the cylinder (3); a support plate (6) is fixedly connected to the outer ring of the ring (5); a sliding rod (7) is slidably connected to the end of the support plate (6) away from the ring (5); and a first circular groove (6) is fixedly connected to the end of the sliding rod (7) away from the machine body (1). The sliding rod (7) is fixedly connected to a second circular plate (9) at one end close to the machine body (1); a first spring (10) is sleeved on the outside of the sliding rod (7); one end of the first spring (10) is fixedly connected to the second circular plate (9); the other end of the first spring (10) is fixedly connected to the support plate (6); a ring groove (13) is provided on the side of the ring (5) facing the machine body (1); and an adjustment component cooperating with the ring groove (13) is provided on the cylinder (3).

2. A handheld metal material chamfering device according to claim 1, characterized in that: The support plates (6) are arranged in plurality, and the plurality of support plates (6) are evenly distributed around the circular ring (5).

3. The handheld metal material chamfering device according to claim 1, characterized in that: The adjustment assembly comprises a threaded sleeve (11) and a ring block (12); the threaded sleeve (11) is threadedly connected to the outside of the cylinder (3); the ring block (12) is rotatably connected to the inside of the ring groove (13); and the ring block (12) is fixedly connected to the threaded sleeve (11).

4. A handheld metal material chamfering device according to claim 3, characterized in that: The threaded sleeve (11) is provided with a circular groove (18) on one side facing the machine body (1), and the cylinder (3) is provided with a positioning component that matches the circular groove (18).

5. A handheld metal material chamfering device according to claim 4, characterized in that: The positioning assembly comprises a square plate (14), a third circular plate (15), an insertion rod (16) and a second spring (17); the square plate (14) is fixedly connected to the outer wall of the cylinder (3); the insertion rod (16) is slidably connected to the square plate (14); the third circular plate (15) is fixedly connected to one end of the insertion rod (16) close to the body (1); the second spring (17) is sleeved on the outside of the insertion rod (16); one end of the second spring (17) is fixedly connected to the square plate (14); and the other end of the second spring (17) is fixedly connected to the third circular plate (15).

6. The handheld metal material chamfering device according to claim 4, characterized in that: The circular grooves (18) are arranged in plurality, and the plurality of circular grooves (18) are evenly distributed around the axis of the threaded sleeve (11).

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