Clamp facilitating machining of bearing seat workpiece

Abstract

The utility model provides a clamp convenient for processing a bearing seat workpiece, which comprises a positioning block and a pressing mechanism, the positioning block is a cylinder, the left end of the positioning block is clamped and aligned by a lathe chuck, and the bearing seat workpiece to be processed is sleeved at the right end of the positioning block; the pressing mechanism comprises a pressing block, a bearing, a connecting shaft, an air cylinder and a base, one end of the pressing block is a plane, the other end of the pressing block is provided with a blind hole used for installing the bearing, one end of the connecting shaft is in interference fit with an inner ring of the bearing, the other end of the connecting shaft is fixedly connected with an ejector rod of the air cylinder, and the air cylinder is installed on the base through a bolt. The base and a guide rail of a lathe are clamped in a matched mode. The positioning block, the pressing block, the bearing, the connecting shaft and the lathe chuck are located on the same axis, and under the action of the air cylinder, the pressing block can abut against a bearing pedestal workpiece to be machined on the positioning block. By the adoption of the technical scheme, the to-be-machined bearing pedestal workpiece does not need to be aligned every time, and therefore the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a fixture which is convenient for processing a bearing seat workpiece. Background Art

[0002] The roller bearing seat is an important component of the roller, which is generally made by stamping. The outer circle of the stamped bearing seat workpiece needs to be machined before it can be assembled with the roller welded pipe. Figure 1 As shown, in the prior art, in order to facilitate the processing of the roller bearing seat workpiece, it is necessary to use a three-jaw chuck to clamp and align the stamped bearing seat workpiece, and then turn the outer circle of the bearing seat workpiece. After the processing is completed, it is removed, and then the next bearing seat workpiece to be processed is loaded onto the three-jaw chuck for processing. Every time a bearing seat workpiece is loaded onto the three-jaw chuck, the workpiece needs to be aligned, which is troublesome to operate and affects efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a clamp which is convenient for processing a bearing seat workpiece and can quickly fix the workpiece.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a fixture that is convenient for processing a bearing seat workpiece, including a positioning block and a clamping mechanism, the positioning block is a cylinder, the left end of the positioning block is clamped and aligned with a lathe chuck, and the bearing seat workpiece to be processed is sleeved on the right end of the positioning block and clamped with a clamping mechanism; the clamping mechanism includes a clamping block, a bearing, a connecting shaft, a cylinder, and a base, one end of the clamping block is a plane, and the other end is provided with a blind hole for installing the bearing, one end of the connecting shaft is interference fit with the inner ring of the bearing, and the other end of the connecting shaft is fixedly connected to the push rod of the cylinder, the cylinder is installed on the base by bolts, and the base is clamped with the guide rail of the lathe; the positioning block, the clamping block, the bearing, the connecting shaft and the lathe chuck are located on the same axis, and under the action of the cylinder, the clamping block can press the bearing seat workpiece to be processed against the positioning block.

[0005] Furthermore, a circle of bosses is provided in the middle of the positioning block.

[0006] Furthermore, the outer diameter of the boss of the positioning block is smaller than the outer diameter of the bearing seat workpiece.

[0007] Preferably, the chuck is a three-jaw chuck mounted on a lathe spindle.

[0008] In one embodiment, the base includes an L-shaped side plate, an upper bottom plate and a lower bottom plate, the side plate is fixed to the upper bottom plate, the upper bottom plate is placed on the guide rail of the lathe, and the lower bottom plate is located under the guide rail of the lathe and fixedly connected to the upper bottom plate by bolts.

[0009] The beneficial effects achieved by the utility model are:

[0010] 1) The utility model first clamps and aligns the left end of the positioning block with a lathe chuck, and then only needs to put the bearing seat workpiece to be processed on the right end of the positioning block and clamp it with a clamping mechanism, and then it can be processed directly. It is not necessary to align the bearing seat workpiece to be processed each time, which greatly improves the work efficiency;

[0011] 2) The clamping mechanism of the utility model adopts a pneumatic device with a piston structure to replace manpower, which greatly improves labor efficiency, reduces workers' fatigue, reduces workers' error rate, and also reduces workers' labor intensity;

[0012] 3) Since the clamping block and the connecting shaft are connected by a bearing, the positioning block, clamping block, bearing, connecting shaft and lathe chuck are located on the same axis. Under the action of the cylinder, the clamping block can press the bearing seat workpiece to be processed against the positioning block, so that the positioning block, the bearing seat workpiece and the clamping block can rotate together with the main shaft of the lathe, so that the bearing seat workpiece can be processed very accurately and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the clamping structure of the bearing seat workpiece in the prior art;

[0014] Figure 2 This is a schematic diagram of the overall structure of the clamp in the embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the positioning block structure in an embodiment of the utility model;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure after the enlargement of part B in FIG.

[0017] Figure 5 for Figure 2 AA line cross-sectional structure diagram;

[0018] The accompanying drawings are marked as follows:

[0019] 1. Chuck; 2. Positioning block; 3. Bearing seat workpiece; 4. Cylinder; 5. Base; 5a. Side plate; 5b. Upper bottom plate; 5c. Lower bottom plate; 6. Guide rail; 7. Clamping block; 8. Bearing; 9. Connecting shaft. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0021] It should be noted in advance that, in the present utility model, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] like Figures 2 to 5 As shown, a fixture for processing a bearing seat workpiece 3 includes a positioning block 2 and a clamping mechanism. The positioning block 2 is a cylinder, and a circle of bosses is provided in the middle of the positioning block 2. The left end of the positioning block 2 is clamped and aligned by a three-jaw chuck 1 on the spindle of a lathe. The bearing seat workpiece 3 to be processed is sleeved on the right end of the positioning block 2. The outer diameter of the boss of the positioning block 2 is smaller than the outer diameter of the bearing seat workpiece 3; the clamping mechanism includes a clamping block 7, a bearing 8, a connecting shaft 9, a cylinder 4, and a base 5. One end of the clamping block 7 is The plane has a blind hole at the other end for installing the bearing 8. One end of the connecting shaft 9 is interference fit with the inner ring of the bearing 8, and the other end of the connecting shaft 9 is fixedly connected to the push rod of the cylinder 4. The cylinder 4 is mounted on the base 5 by bolts, and the base 5 is clamped with the guide rail 6 of the lathe; the positioning block 2, the clamping block 7, the bearing 8, the connecting shaft 9 and the lathe chuck 1 are located on the same axis. Under the action of the cylinder 4, the clamping block 7 can tighten the bearing seat workpiece 3 to be processed onto the positioning block 2.

[0023] like Figure 5 As shown, the base 5 includes an L-shaped side plate 5a, an upper bottom plate 5b and a lower bottom plate 5c, the side plate 5a is fixed on the upper bottom plate 5b, the upper bottom plate 5b is placed on the guide rail 6 of the lathe, and the lower bottom plate 5c is located below the guide rail 6 of the lathe and is fixedly connected to the upper bottom plate 5b by bolts.

[0024] The method of using this embodiment is: first, the left end of the positioning block 2 is clamped and aligned with the lathe chuck 1, and then the bearing seat workpiece 3 to be processed only needs to be put on the right end of the positioning block 2 and tightened with the clamping mechanism, and then it can be processed directly. There is no need to align the bearing seat workpiece 3 to be processed each time, which greatly improves the work efficiency.

[0025] In order to make it easier for ordinary technicians in this field to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and the above-mentioned embodiments are better implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A fixture for processing a bearing seat workpiece, characterized in that: The invention comprises a positioning block (2) and a clamping mechanism, wherein the positioning block (2) is a cylinder, the left end of the positioning block (2) is clamped and aligned by a lathe chuck (1), and the bearing seat workpiece (3) to be processed is sleeved on the right end of the positioning block (2); the clamping mechanism comprises a clamping block (7), a bearing (8), a connecting shaft (9), a cylinder (4), and a base (5); one end of the clamping block (7) is a plane, and the other end is provided with a blind hole for installing the bearing (8); one end of the connecting shaft (9) is in contact with the bearing (8); 8) The inner ring is interference fit, and the other end of the connecting shaft (9) is fixedly connected to the push rod of the cylinder (4). The cylinder (4) is installed on the base (5) by bolts, and the base (5) is clamped with the guide rail (6) of the lathe; the positioning block (2), the clamping block (7), the bearing (8), the connecting shaft (9) and the lathe chuck (1) are located on the same axis. Under the action of the cylinder (4), the clamping block (7) can press the bearing seat workpiece (3) to be processed onto the positioning block (2).

2. The fixture for processing a bearing seat workpiece according to claim 1 is characterized in that: A circle of bosses is provided in the middle of the positioning block (2).

3. The fixture for processing a bearing seat workpiece according to claim 1 is characterized in that: The chuck (1) is a three-jaw chuck installed on the main shaft of a lathe.

4. The fixture for processing a bearing seat workpiece according to claim 2 is characterized in that: The outer diameter of the boss of the positioning block (2) is smaller than the outer diameter of the bearing seat workpiece (3).

5. The fixture for processing a bearing seat workpiece according to claim 1 or 2, characterized in that: The base (5) comprises an L-shaped side plate (5a), an upper bottom plate (5b) and a lower bottom plate (5c); the side plate (5a) is fixed to the upper bottom plate (5b); the upper bottom plate (5b) is placed on the guide rail (6) of the lathe; and the lower bottom plate (5c) is located below the guide rail (6) of the lathe and is fixedly connected to the upper bottom plate (5b) by bolts.

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