Tool clamp for finish turning of outer circle of steering knuckle

Abstract

The utility model provides a work fixture for finish turning of an outer circle of a steering knuckle, which belongs to the field of steering knuckles and comprises a fixture body, rotating shaft seats are mounted at two ends of one side of the fixture body, a cavity is designed in the fixture body, and a floating clamping component is arranged in the cavity; the centrifugal counterweight assembly comprises a counterweight seat, a counterweight block, two guide rods and a pull block, linear bearings are fixedly installed at the two ends of one side of the counterweight seat, the two guide rods penetrate through the two linear bearings respectively to be arranged in a matched mode, and the counterweight block is fixedly arranged at one ends of the two guide rods. According to the utility model, the centrifugal counterweight assembly is arranged, so that the centrifugal force of the steering knuckle can be effectively balanced, the floating clamping mechanism is also arranged, a workpiece is clamped under the condition of not influencing the positioning of the center, the stability of the clamp is improved, the workpiece is prevented from flying out, the safety is increased, and the finish turning of the workpiece can be finished at a higher rotating speed.

Description

Technical Field

[0001] The utility model relates to the technical field of steering knuckles, in particular to a tooling fixture used for fine turning the outer circle of a steering knuckle. Background Art

[0002] The steering knuckle, also known as the "ram's horn", is one of the important parts in the automobile steering axle. It can make the car run stably and sensitively transmit the driving direction. The function of the steering knuckle is to transmit and bear the front load of the car, support and drive the front wheels to rotate around the kingpin to turn the car. When the car is in driving state, it is subjected to variable impact loads, therefore, it is required to have very high strength.

[0003] However, due to its special shape, the traditional steering knuckle has a large eccentricity and a very slow rotation speed on a lathe, so it can only be rough-turned. The accuracy of its outer circle can only be guaranteed by processing on a grinder. The production efficiency is extremely low and it can only meet small-batch processing tasks. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a tooling fixture for fine turning the outer circle of a steering knuckle.

[0005] The embodiment of the utility model provides a fixture for fine turning the outer circle of a steering knuckle, comprising:

[0006] A clamp body, wherein both ends of one side of the clamp body are provided with a rotating shaft seat, a cavity is designed inside the clamp body, and a floating clamping assembly is arranged in the cavity;

[0007] A centrifugal counterweight assembly, which includes a counterweight seat, a counterweight block, two guide rods and a pull block. Linear bearings are fixedly installed at both ends of one side of the counterweight seat. The two guide rods respectively penetrate the two linear bearings and are arranged in cooperation. The counterweight block is fixedly set at one end of the two guide rods, and the pull block is fixedly set at the other end of the two guide rods.

[0008] Furthermore, the floating clamping assembly includes a pull plate, two floating pressure blocks and multiple rotating shafts. The pull plate is installed in the mold cavity. Hinge plates are rotatably installed on both sides of the pull plate. Mother pressure plates are rotatably installed on the outer ends of the two hinge plates. The two mother pressure plates are respectively rotatably set on the rotating shaft seats on the same side through rotating shafts, and the two floating pressure blocks are respectively installed on the two mother pressure plates.

[0009] Furthermore, a fixed center is installed at the front end center of the clamp body, and the fixed center is arranged in cooperation with the tail of the lathe.

[0010] Furthermore, a pull sleeve is installed at the bottom of the clamp body, and the pull plate is connected to the pull sleeve through a rotating shaft.

[0011] Furthermore, the fixture body is configured as a special-shaped part, and the fixture body is configured in cooperation with a machine tool.

[0012] Furthermore, a U-shaped opening is provided on the pulling block, and the U-shaped opening is matched with the fixed top.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model is provided with a centrifugal counterweight assembly, which can effectively balance the centrifugal force of the steering knuckle, and is also provided with a floating clamping mechanism, which clamps the workpiece without affecting the positioning of the top, thereby improving the stability of the fixture, preventing the workpiece from flying out, increasing safety, and ensuring that the workpiece can complete fine turning processing at a higher speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a tooling fixture used for fine turning the outer circle of a steering knuckle described in an embodiment of the utility model.

[0016] Figure 2 It is a cross-sectional view of a floating clamping mechanism in a tooling fixture for fine turning the outer circle of a steering knuckle described in an embodiment of the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of a centrifugal weight assembly in a fixture for fine turning the outer circle of a steering knuckle described in an embodiment of the utility model.

[0018] In the above drawings: 01 fixture body, 02 fixed center, 03 pull sleeve, 04 floating clamping assembly, 401 pull plate, 402 hinge plate, 403 mother pressure plate, 404 floating pressure block, 05 centrifugal counterweight assembly, 501 counterweight seat, 502 counterweight block, 503 linear bearing, 504 guide rod, 505 pull block, 06 rotating shaft seat. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides a fixture for fine turning the outer circle of a steering knuckle, comprising:

[0021] The fixture body 01 is fixed on the spindle end of the lathe. The fixture body 01 is a base for connecting the lathe and the workpiece. The fixture body 01 is set as a special-shaped part. The fixture body 01 is set in cooperation with the machine tool. The two ends of one side of the fixture body 01 are equipped with a rotating shaft seat 06. The front end center of the fixture body 01 is equipped with a fixed center 02. The fixed center 02 is set in cooperation with the tail of the lathe and cooperates with the movable center at the tail of the lathe to locate the center hole of the workpiece.

[0022] A pull sleeve 03 is installed at the bottom of the fixture body 01. The pull sleeve 03 is connected to the pull pipe of the machine tool. It moves with the pull cylinder to drive the floating clamping assembly 04, which is used to drive the floating fixture assembly 03 to move.

[0023] Centrifugal counterweight assembly 05, centrifugal counterweight assembly 05 is arranged in cooperation with the fixture body 01, and the centrifugal counterweight assembly 05 is installed on one side of the fixture body 01. The centrifugal counterweight assembly 05 includes a counterweight seat 501, a counterweight block 502, two guide rods 504 and a pull block 505. Linear bearings 503 are fixedly installed at both ends of one side of the counterweight seat 501. The two guide rods 504 respectively penetrate the two linear bearings 503 and are arranged in cooperation. The counterweight block 502 is fixedly arranged at one end of the two guide rods 504, and the pull block 505 is fixedly arranged at the other end of the two guide rods 504. A U-shaped opening is arranged on the pull block 505, and the U-shaped opening is arranged in cooperation with the fixed top 02;

[0024] The centrifugal weight assembly 05 is mainly used to balance the centrifugal force of the workpiece. When the fixture body 01 rotates at high speed, the weight block 502 generates centrifugal force along the two guide rods 504, and the workpiece is tightly pulled by the pull block 505 to achieve the purpose of centrifugal balance.

[0025] The interior of the fixture body 01 is designed with a cavity for counterweighting and reducing the weight of the fixture body 01. A floating clamping assembly 04 is arranged in the cavity. The floating clamping assembly 04 includes a pull plate 401, two floating pressure blocks 404 and multiple rotating shafts. The pull plate 401 is installed in the cavity. The pull plate 401 is connected to the pull sleeve 03 through the rotating shaft. Hinge pieces 402 are rotatably installed on both sides of the pull plate 401. The outer ends of the two hinge pieces 402 are rotatably installed with mother pressure plates 403. The two mother pressure plates 403 are respectively rotatably arranged on the same-side rotating shaft seat 06 through the rotating shaft, and the two floating pressure blocks 404 are respectively installed on the two mother pressure plates 403;

[0026] The two floating pressure blocks 404 facilitate the replacement, improve the versatility of the fixture body 01, and save the maintenance and replacement costs of the fixture body 01. The two floating pressure blocks 404 can float around the rotating shaft to clamp the workpiece. The floating clamping assembly 04 is mainly used to clamp the workpiece and increase the stability of the fixture.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A fixture for finishing the outer circle of a steering knuckle, characterized in that: include: A clamp body (01), wherein both ends of one side of the clamp body (01) are provided with a rotating shaft seat (06), and a cavity is designed inside the clamp body (01), and a floating clamping assembly (04) is arranged inside the cavity; A centrifugal counterweight assembly (05), the centrifugal counterweight assembly (05) comprising a counterweight seat (501), a counterweight block (502), two guide rods (504) and a pull block (505), linear bearings (503) are fixedly mounted on both ends of one side of the counterweight seat (501), the two guide rods (504) respectively penetrate the two linear bearings (503) and are arranged in cooperation, the counterweight block (502) is fixedly arranged on one end of the two guide rods (504), and the pull block (505) is fixedly arranged on the other end of the two guide rods (504).

2. A fixture for finishing the outer circle of a steering knuckle according to claim 1, characterized in that: in: The floating clamping assembly (04) comprises a pull plate (401), two floating pressure blocks (404) and a plurality of rotating shafts. The pull plate (401) is installed in the mold cavity. Hinge plates (402) are rotatably installed on both sides of the pull plate (401). Mother pressure plates (403) are rotatably installed on the outer ends of the two hinge plates (402). The two mother pressure plates (403) are rotatably installed on the rotating shaft seat (06) on the same side through the rotating shaft. The two floating pressure blocks (404) are respectively installed on the two mother pressure plates (403).

3. A fixture for finishing the outer circle of a steering knuckle according to claim 1, characterized in that: in: A fixed center (02) is mounted at the front end center of the clamp body (01), and the fixed center (02) is arranged in coordination with the tail end of the lathe.

4. A fixture for finishing the outer circle of a steering knuckle according to claim 2, characterized in that: in: A pull sleeve (03) is installed at the bottom of the clamp body (01), and the pull plate (401) is connected to the pull sleeve (03) via a rotating shaft.

5. The fixture for finishing the outer circle of a steering knuckle according to claim 1, characterized in that: in: The clamp body (01) is configured as a special-shaped part, and the clamp body (01) is configured to cooperate with a machine tool.

6. A fixture for finishing the outer circle of a steering knuckle according to claim 2, characterized in that: in: The pulling block (505) is provided with a U-shaped opening, and the U-shaped opening is arranged in cooperation with the fixed top (02).

Images