Crankshaft end face polishing device

Abstract

The utility model relates to the technical field of crankshaft polishing, specifically discloses a crankshaft end face polishing device, the top side of body is provided with the hinge block, the bottom of body is provided with the sliding slot, the middle part of hinge block is connected with the deflection lever, the both sides of deflection lever are provided with the limiting block, the side wall of deflection lever is connected with the polishing sand paper, the top one end of deflection lever is provided with the control rod, the top of deflection lever is connected with the rotating shaft, the both sides of deflection lever are connected with the resistance block. The utility model solves the problem that the polishing efficiency and quality are affected by the space limitation of the two side end faces of the middle part of the crankshaft gap, the difficulty of the polishing equipment to extend into the gap to operate, and the polishing efficiency and quality are affected. Through the deflection lever arranged in the device, the polishing sand paper can be moved to the gap of the crankshaft through the deflection of the deflection lever, and then is attached to the end faces on the two sides of the crankshaft gap to polish the two sides of the crankshaft gap.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft grinding technology, and more specifically, to a crankshaft end face grinding device. Background Technology

[0002] Crankshaft grinding refers to the processing steps that remove burrs and roughness from the crankshaft, making its surface smoother.

[0003] Existing crankshafts have cranks that need to be spaced out, and the gap end faces of these cranks are located in the gaps. Due to space constraints, it is difficult for grinding equipment to reach into the gaps to grind these end faces, and it is also difficult to operate, which affects the grinding of the crankshaft and crank gap end faces. Utility Model Content

[0004] The purpose of this invention is to provide a crankshaft end face grinding device, which solves the problem that the grinding equipment is difficult to extend into the gap between the two end faces in the middle of the crankshaft crank clearance due to space constraints, thus affecting the grinding efficiency and quality.

[0005] This utility model is achieved through the following technical solution: This utility model provides a crankshaft end face grinding device, including a body, a hinge block provided on one side of the top of the body, a sliding groove provided at the bottom of the body, a deflection rod connected to the middle of the hinge block, limiting blocks provided on both sides of the deflection rod, sandpaper connected to the side wall of the deflection rod, a control rod provided at one top end of the deflection rod, a rotating shaft connected to the top of the deflection rod, and abutment blocks connected to both sides of the deflection rod.

[0006] Preferably, one end of the deflection rod is hinged to the middle of the hinge block.

[0007] Preferably, the limiting blocks are arranged in an "L" shape on the top of both sides of the deflection rod, and the sandpaper passes through the gap between the limiting blocks and the deflection rod.

[0008] Preferably, a gear is provided on the middle side wall of the rotating shaft.

[0009] Preferably, the abutment also includes a rack, a fitting groove, and a fitting rod. The rack is disposed on one side of the abutment, the fitting groove is disposed at one end of the rack, and the fitting rod is disposed on one side of the abutment.

[0010] Preferably, the rack is a protrusion on one side of the abutment block, and the rack is arranged in an "L" shape with the abutment block.

[0011] Preferably, the rack meshes with the gear in the middle of the rotating shaft.

[0012] Preferably, the two racks are fitted on both sides of the gear in the middle of the rotating shaft, and the fitting grooves cooperate with the fitting rods.

[0013] Preferably, a disc protrudes from the top of the rotating shaft and is connected to the top of the deflecting rod. The top of the rotating shaft is connected to a pin, and the top of the deflecting rod is provided with several holes and slots that mate with the pin at the point where they fit against the top of the rotating shaft disc.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: 1. The device uses a deflection rod to move the sandpaper to the crankshaft clearance and then to the end faces on both sides of the crankshaft clearance for sanding.

[0015] 2. The device is also equipped with a stop block. By moving the stop block, the sandpaper is pushed against and extended, thereby increasing the contact range on both sides of the sandpaper to adapt to different crankshaft clearances and make it more versatile. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a top view of the deflection rod of this utility model.

[0018] Figure 3 This is a top view cross-sectional structural diagram of the abutment block of this utility model.

[0019] Reference numerals: 1-body, 101-hinge block, 102-slide groove, 2-deflection rod, 201-limiting block, 202-sandpaper, 203-control rod, 204-rotation shaft, 205-stop block, 2051-rack, 2052-fitting groove, 2053-fitting rod. Detailed Implementation

[0020] The following is combined Figures 1 to 3 This utility model will be described in detail.

[0021] A crankshaft end face grinding device includes a body 1. A hinge block 101 is provided on one side of the top of the body 1. A sliding groove 102 is provided at the bottom of the body 1. A deflection rod 2 is connected to the middle of the hinge block 101. Limiting blocks 201 are provided on both sides of the deflection rod 2. Sandpaper 202 is connected to the side wall of the deflection rod 2. A control rod 203 is provided at one end of the top of the deflection rod 2. A rotating shaft 204 is connected to the top of the deflection rod 2. Abutment blocks 205 are connected to both sides of the deflection rod 2. One end of the deflection rod 2 is hinged to the middle of the hinge block 101. The limiting blocks 201 are arranged in an "L" shape on the top of both sides of the deflection rod 2. The sandpaper 202 passes through the gap between the limiting blocks 201 and the deflection rod 2.

[0022] First, the crankshaft 3 is connected to the clamping mechanism. Then, by manually applying force to the control lever 203, the deflection lever 2 is deflected along the hinge block 101, causing the deflection lever 2 to move into the gap of the crankshaft. This allows the sandpaper 202 connected to the side wall of the deflection lever 2 to contact the two end faces of the gap of the crankshaft 3. Then, by rotating the crankshaft 3, the two end faces of the gap of the crankshaft 3 are rubbed against the sandpaper 202 for polishing. At the same time, the sandpaper 202 is connected by passing through the gap between the limiting block 201 and the deflection lever 2, so that the sandpaper 202 can maintain a close contact with the deflection lever 2.

[0023] Meanwhile, the main body 1 is connected through the bottom slide groove 102, allowing the main body 1 to move along the slide rail to control the position of the deflection rod 2, so that the crank clearance end face at different positions of the crankshaft 3 can be polished. At the same time, the control rod 203 is always manually controlled, so that the crank end face can be polished over a larger range by adjusting the deflection angle.

[0024] Furthermore, a gear is provided on the middle side wall of the rotating shaft 204, and the abutment 205 also includes a rack 2051, a fitting groove 2052, and a fitting rod 2053. The rack 2051 is located on one side of the abutment 205, the fitting groove 2052 is located at one end of the rack 2051, and the fitting rod 2053 is located on one side of the abutment 205. The rack 2051 is a protrusion located on one side of the abutment 205, and the rack 2051 is engaged with the abutment 205. Arranged in an "L" shape, the rack 2051 meshes with the gear in the middle of the rotating shaft 204. The two racks 2051 are attached to both sides of the gear in the middle of the rotating shaft 204. The fitting groove 2052 cooperates with the fitting rod 2053. A disc protrudes from the top of the rotating shaft 204 and is connected to the top of the deflecting rod 2. The top of the deflecting rod 2 is attached to the top of the rotating shaft 204 and has several holes and slots in a ring at the top of the disc that cooperate with the pin.

[0025] If the crankshaft 3 has a large clearance, the rotating shaft 204 is rotated manually. Because the gear in the middle of the rotating shaft 204 meshes with the rack 2051 on one side of the two abutments 205, when the rotating shaft 204 rotates, it will drive the two racks 2051 to move together, thereby driving the abutments 205 to move. When the abutments 205 move outward, they will lift the sandpaper 202, so that the sandpaper 202 will adapt to the clearance of the crankshaft 3 according to the abutment protrusion of the abutment 205, so that the deflection rod 2 can adapt to different crankshaft 3 crank clearances and increase versatility.

[0026] Finally, after the rotating shaft 204 rotates to a suitable angle, the control pin passes through the disk at the top of the rotating shaft 204 and engages with the slot at the top of the deflection rod 2 to restrict the rotating shaft 204 from rotating on its own, thereby fixing the abutment block 205.

[0027] The following is a detailed implementation process of this utility model. First, the crankshaft 3 is connected to the clamping mechanism. Then, by manually applying force to the control rod 203, the deflection rod 2 will deflect along the hinge block 101, allowing the deflection rod 2 to move into the gap of the crankshaft. This allows the sandpaper 202 connected to the side wall of the deflection rod 2 to contact the two end faces of the gap of the crankshaft 3. Then, by rotating the crankshaft 3, the two end faces of the gap of the crankshaft 3 are rubbed against the sandpaper 202 for polishing. At the same time, the sandpaper 202 is connected through the gap between the limiting block 201 and the deflection rod 2, so that the sandpaper 202 can maintain a close contact with the deflection rod 2. Meanwhile, the body 1 is connected through the bottom slide groove 102, allowing the body 1 to move along the slide rail to control the position of the deflection rod 2, so that the crank gap end faces at different positions of the crankshaft can be polished.

[0028] If the crankshaft 3 has a large clearance, the rotating shaft 204 is rotated manually. The gear in the middle of the rotating shaft 204 meshes with the rack 2051 on one side of the two abutments 205. When the rotating shaft 204 rotates, it will drive the two racks 2051 to move together, thereby driving the abutments 205 to move. When the abutments 205 move outward, they will lift the sandpaper 202, so that the sandpaper 202 will adapt to the clearance of the crankshaft 3 according to the abutment protrusion of the abutment 205, so that the deflection rod 2 can adapt to different crankshaft 3 clearances and increase versatility.

Claims

1. A crankshaft end face grinding device, comprising a body (1), characterized in that, A hinge block (101) is provided on one side of the top of the main body (1), a sliding groove (102) is provided at the bottom of the main body (1), a deflection rod (2) is connected to the middle of the hinge block (101), limiting blocks (201) are provided on both sides of the deflection rod (2), sandpaper (202) is connected to the side wall of the deflection rod (2), a control rod (203) is provided at one top end of the deflection rod (2), a rotating shaft (204) is connected to the top of the deflection rod (2), and abutment blocks (205) are connected to both sides of the deflection rod (2).

2. The crankshaft end face grinding device according to claim 1, characterized in that, One end of the deflection rod (2) is hinged to the middle of the hinge block (101).

3. The crankshaft end face grinding device according to claim 1, characterized in that, The limiting block (201) is arranged in an "L" shape on both sides of the top of the deflection rod (2), and the sandpaper (202) passes through the gap between the limiting block (201) and the deflection rod (2).

4. The crankshaft end face grinding device according to claim 1, characterized in that, A gear is provided on the middle side wall of the rotating shaft (204).

5. The crankshaft end face grinding device according to claim 1, characterized in that, The abutment (205) also includes a rack (2051), a fitting groove (2052), and a fitting rod (2053). The rack (2051) is located on one side of the abutment (205), the fitting groove (2052) is located at one end of the rack (2051), and the fitting rod (2053) is located on one side of the abutment (205).

6. The crankshaft end face grinding device according to claim 5, characterized in that, The rack (2051) is a protrusion provided on one side of the abutment (205), and the rack (2051) is arranged in an "L" shape with the abutment (205).

7. The crankshaft end face grinding device according to claim 5, characterized in that, The rack (2051) meshes with the gear in the middle of the rotating shaft (204).

8. The crankshaft end face grinding device according to claim 5, characterized in that, The two racks (2051) are attached to both sides of the gear in the middle of the rotating shaft (204), and the fitting groove (2052) is engaged with the fitting rod (2053).

9. The crankshaft end face grinding device according to claim 1, characterized in that, The top of the rotating shaft (204) is provided with a disc protruding from the top of the deflecting rod (2). The top disc of the rotating shaft (204) is connected to a pin. The top of the deflecting rod (2) is provided with several holes and slots that cooperate with the pin at the top of the rotating shaft (204).

Images