Windscreen wiper arm flat iron end polishing device

Abstract

The utility model provides a wiper arm flat iron end grinding device. The wiper arm flat iron end grinding device comprises a rotating sleeve, a baffle and a grinding machine. The rotating sleeve is horizontally arranged, is coaxially provided with a rectangular hole penetrating through the two ends, is used for allowing the flat iron to penetrate through and is rotationally arranged around the axis; the baffle is arranged behind the rotating sleeve and is movably arranged along the axis of the rotating sleeve; a grinding head of a conical structure is arranged on a main shaft of the grinding machine, the grinding machine is arranged on one side in front of the rotating sleeve, the axis of the grinding head is perpendicular to the extending direction of the rectangular hole, and the axis of the grinding head and the axis of the rotating sleeve are located in the horizontal plane with the same height. The grinding machine can freely move in the direction of the main shaft. The scheme can be used for polishing the end part of the flat structure of the flat iron, and can be suitable for polishing the flat iron with different thicknesses and widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding devices, and in particular relates to a grinding device for the flat iron end of a wiper arm. Background Art

[0002] like Figure 1 The wiper arm shown generally includes a groove-shaped housing formed by sheet metal stamping and a flat iron connected to the front end of the groove-shaped housing. The flat iron is generally formed into a strip structure of a predetermined length by punching a steel bar. After the flat iron is punched, both ends of the flat iron generally have relatively sharp burrs. In order to prevent the burrs from affecting the assembly process and product quality, the ends of the flat iron need to be polished before product assembly. Since the ends of the flat iron are flat structures, the existing external cylindrical grinding equipment cannot be used to grind the ends of the flat iron like conventional round rods. Therefore, it is necessary to design a set of devices for grinding the ends of the flat iron. Utility Model Content

[0003] In order to solve the deficiencies in the prior art, the utility model provides a wiper arm flat iron end grinding device, which can be used to grind the end of the flat structure of the flat iron and can adapt to grinding flat irons of different thicknesses and widths.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A device for grinding the flat iron end of a wiper arm comprises a rotating sleeve, a baffle and a grinder.

[0006] The rotating sleeve is arranged horizontally, and is coaxially provided with rectangular holes penetrating both ends thereof for passing the flat iron, and the rotating sleeve is arranged to rotate around the axis;

[0007] The baffle is arranged behind the rotating sleeve, and the baffle is arranged to move along the axis of the rotating sleeve;

[0008] The grinder main shaft is provided with a grinding head with a conical structure. The grinder is arranged on one side in front of the rotating sleeve. The axis of the grinding head is perpendicular to the extension direction of the rectangular hole. The axis of the grinding head and the axis of the rotating sleeve are located in a horizontal plane at the same height. Elastic parts are provided at both ends of the grinder along the main axis direction to enable the grinder to move freely along the main axis direction.

[0009] The beneficial effect of the utility model is that the grinder that can be moved by itself and the grinding head with a conical structure are used in combination with a rotatable rotating sleeve, so that the end edge of the flat iron flat structure can be grinded and flat irons of different thicknesses and widths can be grinded. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0011] Figure 1 A schematic structural diagram of a wiper arm is shown.

[0012] Figure 2 A schematic diagram of the structure of the front end of this application is shown.

[0013] Figure 3 A schematic diagram of the structure of the back end of this application is shown.

[0014] Markings in the figure: rotating sleeve -1, rectangular hole -11, pressure block -12, adjusting screw -13, baffle -2, ball -21, grinder -3, grinding head -31, mounting plate -32, elastic member -4, bottom plate -5, slide groove -51, adjusting screw -52, support plate -53, U-shaped bracket -54, guide rod -541, strip groove -55, adjusting screw -56, driving motor -6. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0016] like Figure 2 , Figure 3 As shown, a device for grinding the flat iron end of a wiper arm comprises: a rotating sleeve 1, a baffle 2 and a grinder 3.

[0017] Specifically, the rotating sleeve 1 is horizontally arranged, and is coaxially provided with rectangular holes 11 penetrating through both ends thereof for passing the flat iron, and the rotating sleeve 1 is rotatably arranged around the axis.

[0018] Specifically, the baffle 2 is arranged behind the rotating sleeve 1, and the baffle 2 is arranged to be movable along the axis of the rotating sleeve 1 to adjust the distance between the baffle 2 and the rotating sleeve 1, so as to adapt to flat irons of different lengths.

[0019] Specifically, the main shaft of the grinder 3 is provided with a grinding head 31 with a conical structure. The grinder 3 is arranged on one side in front of the rotating sleeve 1. The axis of the grinding head 31 is perpendicular to the extension direction of the rectangular hole 11. The axis of the grinding head 31 and the axis of the rotating sleeve 1 are located in a horizontal plane at the same height. Elastic parts 4 are provided at both ends of the grinder 3 along the main axis direction, which are used to enable the grinder 3 to move freely along the main axis direction.

[0020] like Figure 2 , Figure 3As shown, during grinding, the flat iron is inserted into the rectangular hole 11, and the position of the baffle 2 is adjusted along the axial direction of the rotating sleeve 1, so that one end of the flat iron abuts against the baffle 2, and the elastic member 4 is used to apply pressure to the grinder 3, so that the conical surface of the grinding head 31 is pressed against the edge of the other end of the flat iron; then the grinder 3 is started, and the edge of the end of the flat iron is grinded by the grinding head 31; at the same time, the rotating sleeve 1 is rotated around the axis, and the rotating sleeve 1 can be rotated manually or driven by a motor. When the rotating sleeve 1 rotates, it will drive the flat iron to rotate together, so that the end of the flat iron is The edge is in contact with the grinding head 31. Because the grinding head 31 has the pressure provided by the elastic part 4, even if the thickness direction of the flat iron with a smaller size is toward the grinding head 31, the elastic part 4 can stretch to make the grinding head 31 contact with the thickness edge of the flat iron, thereby achieving the purpose of grinding. The smaller thickness of the flat iron is described relative to the width of the flat iron; when the flat iron rotates, the continuous switching of its width and thickness parts will enable the grinder 3 to adapt to the change of the grinding position through the expansion and contraction of the elastic part 4, and make the grinder 3 adapt to the grinding of flat irons of different thicknesses and widths.

[0021] Preferably, Figure 2 As shown, the distance between the grinding head 31 and the front end of the rotating sleeve 1 is smaller than the distance between the baffle 2 and the rear end of the rotating sleeve 1, so as to reduce the suspended length of the flat iron at the front end of the rotating sleeve 1, thereby reducing the vibration of the grinding end of the flat iron; as a more preferred structural setting, under the condition of having a gap between the grinding head 31 and the rotating sleeve 1, the grinding head 31 can be made as close to the rotating sleeve 1 as possible.

[0022] Preferably, Figure 3 As shown, the rear end of the rotating sleeve 1 corresponds to both sides of the inner width direction of the rectangular hole 11, and the two pressing blocks 12 have V-shaped grooves on the opposite sides for pressing the two sides of the flat iron in the width direction. This structure is not only suitable for flat irons of different widths, but also can be used to press flat irons of different thicknesses. Pressing the flat iron with the pressing blocks 12 can effectively prevent the flat iron from shifting during the grinding process. The side wall of the rotating sleeve 1 is penetrated with an adjusting screw 13 for adjusting the position of the pressing blocks 12.

[0023] Preferably, Figure 2 As shown, a ball 21 is provided at the portion of the baffle 2 used to abut the flat iron. The ball 21 is used to contact the end face of the flat iron to reduce the rotational friction generated when the end face of the flat iron contacts the baffle 2. The ball 21 is used to abut the end face of the flat iron, which is a point contact structure. The contact point is located in the middle of the end face of the flat iron, which can effectively avoid the position of the burr, thereby preventing the burr from contacting the ball 21 and the baffle 2, and affecting the normal rotation of the flat iron following the rotating sleeve 1.

[0024] Preferably, Figure 2 , Figure 3As shown, it also includes a bottom plate 5, a top surface of which is provided with a slide groove 51 for setting the baffle 2, and an adjusting screw 52 is arranged in parallel in the slide groove 51, which passes through the lower end of the baffle 2, and the slide groove 51 is parallel to the axis of the rotating sleeve 1, and the baffle 2 can be driven to move by rotating the adjusting screw 52, ​​and the position of the baffle 20 after moving can be locked;

[0025] A support plate 53 is provided on the top surface of the bottom plate 5, and the rotating sleeve 1 is passed through the support plate 53;

[0026] A U-shaped bracket 54 is provided on the bottom plate 5, and its opening faces upward. A pair of parallel guide rods 541 are provided between the two side plates of the U-shaped bracket 54. The guide rods 541 are parallel to the main axis of the grinder 3. The grinder 3 is provided on a mounting plate 32. Both guide rods 541 pass through the mounting plate 32, so that the grinder 3 is installed on the guide rods 541. The elastic member 4 is a cylindrical spring. The elastic members 4 are sleeved on both sides of the guide rods 541 corresponding to the mounting plate 32, and the elastic members 4 are in a compressed state so that the elastic members 4 have a predetermined pre-pressure.

[0027] Preferably, Figure 2 , Figure 3 As shown, a driving motor 6 is provided on the bottom plate 5, and a belt transmission mechanism is provided between the driving motor 6 and the rotating sleeve 1. Specifically, pulleys are provided on the rotating sleeve 1 and the driving motor 6, and the two pulleys are connected by a transmission belt.

[0028] Preferably, the U-shaped bracket 54 is movably arranged along the length direction of the guide rod 541 to adjust the distance between the grinding head 31 and the flat iron, so that the grinder 3 can grind flat irons of different widths and thicknesses, and at the same time, the grinding thickness can be adjusted for flat irons of the same specification.

[0029] Further preferably, Figure 2 , Figure 3 As shown, a strip groove 55 is provided at the top of the base plate 5, and an adjusting screw rod 56 is provided inside the strip groove 55 in parallel. The strip groove 55 is parallel to the guide rod 541. The lower end of the U-shaped bracket 54 is arranged in the strip groove 55, and the adjusting screw rod 56 passes through the U-shaped bracket 54. By rotating the adjusting screw rod 56, the position of the U-shaped bracket 54 can be adjusted and the position of the U-shaped bracket 54 can be locked.

[0030] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A wiper arm flat iron end grinding device, characterized in that: include: The rotating sleeve (1) is arranged horizontally and has rectangular holes (11) coaxially extending through both ends thereof for passing the flat iron. The rotating sleeve (1) is arranged to rotate around the axis. A baffle (2) is arranged behind the rotating sleeve (1), and the baffle (2) is arranged to be movable along the axis of the rotating sleeve (1); A grinder (3) has a main shaft provided with a grinding head (31) with a conical structure. The grinder (3) is arranged on one side in front of the rotating sleeve (1). The axis of the grinding head (31) is perpendicular to the extension direction of the rectangular hole (11). The axis of the grinding head (31) and the axis of the rotating sleeve (1) are located in a horizontal plane at the same height. Elastic parts (4) are provided at both ends of the grinder (3) along the main shaft direction, so as to enable the grinder (3) to be freely moved along the main shaft direction.

2. A wiper arm flat iron end grinding device according to claim 1, characterized in that: The distance between the grinding head (31) and the front end of the rotating sleeve (1) is smaller than the distance between the baffle plate (2) and the rear end of the rotating sleeve (1).

3. A wiper arm flat iron end grinding device according to claim 1 or 2, characterized in that: The rear end of the rotating sleeve (1) is provided with pressing blocks (12) on both sides of the inner width direction of the rectangular hole (11), and the two pressing blocks (12) have V-shaped grooves on opposite sides thereof for pressing the two sides of the flat iron in the width direction. The side wall of the rotating sleeve (1) is provided with adjusting screws (13) for adjusting the positions of the pressing blocks (12).

4. A wiper arm flat iron end grinding device according to claim 1, characterized in that: A ball bearing (21) is provided at a position of the baffle plate (2) for contacting the flat iron, and the ball bearing (21) is used to contact the end surface of the flat iron.

5. A wiper arm flat iron end grinding device according to claim 1, characterized in that: It also includes a bottom plate (5), the top surface of which is provided with a slide groove (51) for arranging the baffle plate (2), and an adjusting screw (52) is arranged in parallel in the slide groove (51) and passes through the lower end of the baffle plate (2), and the slide groove (51) is parallel to the axis of the rotating sleeve (1); A support plate (53) is provided on the top surface of the bottom plate (5), and the rotating sleeve (1) is inserted through the support plate (53); A U-shaped bracket (54) is provided on the bottom plate (5), the opening of which faces upward, and a pair of parallel guide rods (541) are provided between two side plates of the U-shaped bracket (54), the guide rods (541) are parallel to the main axis of the grinder (3), the grinder (3) is provided on a mounting plate (32), the two guide rods (541) both pass through the mounting plate (32), the elastic member (4) is a cylindrical spring, and the elastic members (4) are sleeved on both sides of the guide rods (541) corresponding to the mounting plate (32), and the elastic members (4) are both in a compressed state.

6. A wiper arm flat iron end grinding device according to claim 5, characterized in that: A driving motor (6) is provided on the bottom plate (5), and a belt transmission mechanism is provided between the driving motor (6) and the rotating sleeve (1).

7. A wiper arm flat iron end grinding device according to claim 5, characterized in that: The U-shaped bracket (54) is movably arranged along the length direction of the guide rod (541).

8. A wiper arm flat iron end grinding device according to claim 7, characterized in that: A strip groove (55) is provided at the top of the bottom plate (5), and an adjusting screw rod (56) is provided in parallel therein. The strip groove (55) is parallel to the guide rod (541), and the lower end of the U-shaped bracket (54) is arranged in the strip groove (55), and the adjusting screw rod (56) passes through the U-shaped bracket (54).

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