A clamping device for wheel hub drilling

Abstract

The utility model discloses a clamping device for wheel hub drilling processing, which relates to the technical field of wheel hub tooling, and comprises a base plate, wherein the upper end of the base plate is provided with a fixed hub assembly for quickly clamping the wheel hub, wherein the fixed hub assembly comprises a clamping shell fixedly arranged on the upper end of the base plate, an auxiliary shell fixedly arranged on the upper end of the clamping shell, and a fastening bolt arranged on the lower end of the clamping shell through a threaded connection. In the utility model, by rotating the fastening bolt in the fixed hub assembly downward, thereby driving the adjusting column to move downward, one end of the clamping rod slides in the middle of the adjusting column, thereby changing its own angle, so that the upper ends of the three clamping rods are close to the inside of the auxiliary shell at the same time, thereby quickly fastening the wheel hub placed in the auxiliary shell, and the operation is simple and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub clamping, in particular to a clamping device for wheel hub drilling processing. Background Art

[0002] The automobile wheel hub is an important part of automobile parts. With the growth of China's automobile parts industry, the wheel hub industry has gradually developed and grown. The automobile wheel hub specifically refers to the structure supporting the inside of the automobile tire, which plays a vital role. Drilling is one of the important processes in automobile wheel hub processing, and the wheel hub needs to be fixed before drilling;

[0003] Patent No. CN218461499U provides a clamping device for wheel hub drilling. The lower end of the upper base plate is connected to a climbing column and a hydraulic cylinder. The movable end of the climbing column is connected to the lower base plate. The piston rod on the hydraulic cylinder movably penetrates the upper base plate and is connected to a bolt. The bolt is threadedly connected to a nut. The bolt sleeve is provided with a positioning block and a cover plate. The positioning block is connected to the upper base plate. A positioning ring is provided above the upper base plate. The lower end of the positioning ring is connected to the upper base plate through a support column. The positioning ring and the cover plate clamp the steering hub. The positioning block is provided to position the steering hub in the x and y directions. The positioning ring is provided to position the steering hub in the z direction. The positioning pin is provided to prevent the steering hub from rotating and drilling in the center of the spoke claw. The clamping is controlled by the program code of the machining center. The processing efficiency is high, the output is large, and the labor intensity is low. The clamping tooling clamps the steering hub firmly, the quality control is strong, and the output workpiece has high precision.

[0004] When the utility model is in use, the requirements for the equipment of the wheel hub being processed are too high, and high-cost machinery such as hydraulic cylinder processing center is needed, which greatly increases the manufacturing cost. In addition, the clamped wheel hub cannot be rotated, which increases its operation restrictions. After loosening the wheel hub and changing its processing angle, it is impossible to ensure that the concentricity of the secondary clamping is consistent with the previous one, which leads to processing errors and reduces production quality. Therefore, a clamping device for wheel hub drilling processing is proposed. Utility Model Content

[0005] The utility model aims to solve the problem of different concentricity of the same wheel hub when re-clamping it in the prior art, and proposes a clamping device for wheel hub drilling processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A clamping device for wheel hub drilling processing, comprising a base plate, wherein a fixed hub assembly for quickly clamping the wheel hub is provided at the upper end of the base plate;

[0008] The fixed hub assembly includes a clamping shell fixedly arranged on the upper end of the base plate, an auxiliary shell is fixedly arranged on the upper end of the clamping shell, a fastening bolt is threadedly connected to the lower end of the clamping shell, an adjusting column is fixedly arranged on the upper end of the fastening bolt in the middle of the clamping shell, and three clamping rods are evenly distributed and rotatably arranged in the middle of the clamping shell.

[0009] The above technical solution further includes: the upper end of the base plate is also provided with an auxiliary fixing assembly for replacing the wheel hub drilling hole, the auxiliary fixing assembly includes a support leg fixedly arranged on the upper end of the base plate, a fixing plate is fixedly arranged on the upper end of the support leg, and a fixing rod is fixedly arranged on the upper end of the fixing plate.

[0010] The above technical solution further includes: an active rotating block is rotatably provided at the upper end of the fixed rod, a screw is rotatably provided in the middle of the active rotating block, three rotating shafts are evenly distributed and fixed on the upper end of the fixed plate, rotating rods are rotatably provided in the middle of the three rotating shafts, and a contact roller is rotatably provided at the other end of the rotating rod.

[0011] The above technical solution further includes: a turntable is rotatably provided in the middle of the fixed disk, three rectangular sleeves are rotatably provided in the middle of the turntable, the middle parts of the rotating rods are respectively located in the middle parts of the rectangular sleeves, a connecting block is fixedly provided at the upper end of the fixed disk, a slave rotating block is rotatably provided at the upper end of the connecting block, and the middle part of the screw rod is threadedly connected to the middle part of the slave rotating block.

[0012] The above technical solution further includes: an operating block is fixedly provided at one end of the screw rod close to the active rotating block, a clamping rod for adjusting is provided in the middle of the adjusting column, and the ends of the three clamping rods are all in the middle of the circular groove.

[0013] The above technical solution further includes: a rounded corner is provided on the inner side of the upper end of the clamping rod for better contacting the wheel hub, and a rectangular groove is provided on the upper end of the auxiliary shell for use by the clamping rod.

[0014] The above technical solution further includes:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, by turning the fastening bolt in the fixed hub assembly downward, the adjusting column is driven to move downward, so that one end of the clamping rod slides in the middle of the adjusting column, thereby changing its own angle, so that the upper ends of the three clamping rods are close to the inside of the auxiliary shell at the same time, and the wheel hub placed in the auxiliary shell is quickly fastened, and the operation is simple and fast;

[0017] The turntable is driven to rotate by the screw rod in the auxiliary fixing assembly, so that the three rotating rods are approached to each other at the same time for secondary clamping. The clamped hub is rotated in the middle by the contact roller, so that holes with the same center but different positions do not need to be clamped again when drilling, which greatly reduces the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the auxiliary fixing assembly structure proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fixed hub assembly proposed in the utility model;

[0021] Figure 4 This is a schematic diagram of the turntable structure proposed by the utility model.

[0022] In the figure: 1. base plate; 2. fixed hub assembly; 201. clamping shell; 202. auxiliary shell; 203. fastening bolt; 204. adjusting column; 205. clamping rod; 3. auxiliary fixing assembly; 301. supporting leg; 302. fixing plate; 303. rotating plate; 304. fixing rod; 305. active rotating block; 306. screw rod; 307. rotating shaft; 308. rotating rod; 309. rectangular sleeve; 310. contact roller; 311. slave rotating block; 312. connecting block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] like Figure 1-4 As shown, the present invention provides a clamping device for wheel hub drilling, comprising a base plate 1, a fixed hub assembly 2 for quickly clamping the wheel hub is provided at the upper end of the base plate 1, and an auxiliary fixing assembly 3 for rotating the wheel hub angle is also provided at the upper end of the base plate 1;

[0026] The fixed hub assembly 2 includes a clamping shell 201 fixedly arranged on the upper end of the base plate 1, an auxiliary shell 202 is fixedly arranged on the upper end of the clamping shell 201, a fastening bolt 203 is threadedly connected to the lower end of the clamping shell 201, an adjusting column 204 is fixedly arranged at the upper end of the fastening bolt 203 in the middle of the clamping shell 201, and three clamping rods 205 are evenly distributed and rotatably arranged in the middle of the clamping shell 201;

[0027] The operator installs the wheel hub into the middle of the auxiliary shell 202 in the fixed hub assembly 2 through the auxiliary fixing assembly 3, and then rotates the fastening bolt 203 to drive the adjusting column 204 downward, and then adjusts one end of the three clamping rods 205 in the middle of the adjusting column 204 through the circular groove opened in the middle of the adjusting column 204, so that the upper ends of the three clamping rods 205 are close to each other, and then the wheel hub in the middle of the auxiliary shell 202 is clamped. The operation is simple, and the wheel hub can be operated by only rotating the fastening bolt 203 forward and reversely.

[0028] Further, the auxiliary fixing assembly 3 includes a supporting leg 301 fixedly arranged on the upper end of the bottom plate 1, a fixed disk 302 is fixedly arranged on the upper end of the supporting leg 301, a fixed rod 304 is fixedly arranged on the upper end of the fixed disk 302, an active rotating block 305 is rotatably arranged on the upper end of the fixed rod 304, a screw rod 306 is rotatably arranged on the middle of the active rotating block 305, three rotating shafts 307 are evenly fixedly arranged on the upper end of the fixed disk 302, a rotating rod 308 is rotatably arranged in the middle of the three rotating shafts 307, a contact roller 310 is rotatably arranged on the other end of the rotating rod 308, a rotating disk 303 is rotatably arranged in the middle of the fixed disk 302, three rectangular sleeves 309 are rotatably arranged in the middle of the rotating disk 303, and the middle of the rotating rod 308 is respectively located in the middle of the rectangular sleeve 309, a connecting block 312 is also fixedly arranged on the upper end of the fixed disk 302, a slave rotating block 311 is rotatably arranged on the upper end of the connecting block 312, and the middle of the screw rod 306 is threadedly connected to the middle of the slave rotating block 311;

[0029] The operator rotates the screw 306, which in turn drives one end of the rotating block 311, and then drives the turntable 303 to rotate through the connecting block 312, which in turn drives the three rectangular sleeves 309 to move, and then drives the three rotating rods 308 to rotate around the rotating shaft 307, and then through the limiting of the rectangular sleeve 309, the other ends of the three rotating rods 308 are brought close to each other, and then drives the contact roller 310 to clamp the wheel hub, and through the contact roller 310, the fixed hub assembly 2 at the lower end can rotate its hub when it is loosened, change its operating direction, and ensure its concentricity.

[0030] Furthermore, a portion for adjusting the clamping rod 205 is provided in the middle of the adjusting column 204, and the ends of the three clamping rods 205 are all located in the middle of the circular groove, so that when the adjusting column 204 is working, the clamping rod 205 will not escape from the circular groove. An operating block is fixed at one end of the screw rod 306 close to the active rotating block 305 to facilitate the rotation of the screw rod 306.

[0031] Furthermore, a rectangular groove for the clamping rod 205 is provided at the upper end of the auxiliary shell 202 to ensure that the clamping rod 205 will not interfere with the auxiliary shell 202 when in use. A rounded corner is provided on the inner side of the upper end of the clamping rod 205 for better contacting the wheel hub, so that it forms line contact with the wheel hub instead of point contact, thereby increasing its contact area and better clamping the wheel hub.

[0032] In this embodiment, the fastening bolt 203 in the fixed hub assembly 2 is rotated downward, thereby driving the adjusting column 204 to move downward, so that one end of the clamping rod 205 slides in the middle of the adjusting column 204, thereby changing its own angle, so that the upper ends of the three clamping rods 205 are simultaneously close to the inside of the auxiliary shell 202, and then the wheel hub placed inside the auxiliary shell 202 is quickly tightened. The operation is simple and fast, and the turntable 303 is driven to rotate by the screw rod 306 in the auxiliary fixing assembly 3, so that the three rotating rods 308 are simultaneously close to each other for secondary clamping. The clamped wheel hub is rotated in the middle of the contact roller 310, so that the holes with the same center but different positions do not need to be clamped again when drilling is not required, which greatly reduces the operation time.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for wheel hub drilling, comprising a base plate, characterized in that: The upper end of the bottom plate is provided with a fixed hub assembly for quickly clamping the wheel hub; The fixed hub assembly includes a clamping shell fixedly arranged on the upper end of the base plate, an auxiliary shell is fixedly arranged on the upper end of the clamping shell, a fastening bolt is threadedly connected to the lower end of the clamping shell, an adjusting column is fixedly arranged on the upper end of the fastening bolt in the middle of the clamping shell, and three clamping rods are evenly distributed and rotatably arranged in the middle of the clamping shell.

2. A wheel hub drilling clamping device according to claim 1, characterized in that: The upper end of the base plate is also provided with an auxiliary fixing assembly for replacing the hub drilling hole, and the auxiliary fixing assembly includes a supporting leg fixedly arranged on the upper end of the base plate, a fixing plate fixedly arranged on the upper end of the supporting leg, and a fixing rod fixedly arranged on the upper end of the fixing plate.

3. A wheel hub drilling clamping device according to claim 2, characterized in that: An active rotating block is rotatably provided at the upper end of the fixed rod, a screw is rotatably provided in the middle of the active rotating block, three rotating shafts are evenly distributed and fixedly provided at the upper end of the fixed plate, rotating rods are rotatably provided in the middle of the three rotating shafts, and a contact roller is rotatably provided at the other end of the rotating rod.

4. A wheel hub drilling clamping device according to claim 3, characterized in that: A rotating disk is rotatably provided in the middle of the fixed disk, and three rectangular sleeves are rotatably provided in the middle of the rotating disk. The middle parts of the rotating rods are respectively located in the middle parts of the rectangular sleeves. A connecting block is fixedly provided at the upper end of the fixed disk, and a slave rotating block is rotatably provided at the upper end of the connecting block. The middle part of the screw rod is threadedly connected to the middle part of the slave rotating block.

5. A wheel hub drilling clamping device according to claim 4, characterized in that: An operating block is fixedly arranged at one end of the screw rod close to the active rotating block, and a clamping rod for adjusting is provided in the middle of the adjusting column, and the ends of the three clamping rods are all located in the middle of the circular groove.

6. A wheel hub drilling clamping device according to claim 5, characterized in that: A rounded corner is provided on the inner side of the upper end of the clamping rod for better contacting the wheel hub, and a rectangular groove for the clamping rod is provided on the upper end of the auxiliary shell.

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