Hollow shaft sawing auxiliary clamp for sawing machine

Abstract

The hollow shaft sawing auxiliary clamp for the sawing machine comprises calipers, the calipers are fixedly provided with a clamp body with the semicircular section through bolts, and the inner surface of the clamp body is provided with a first-level step, a second-level step and a third-level step from right to left. The first-stage step, the second-stage step and the third-stage step are attached to the outer surface of one end of the hollow shaft, and in order to better limit the hollow shaft and determine the sawing-off position, the left end of the clamp is a limiting step. Compared with the direct clamping of original calipers, the clamping length is longer, the number of clamping faces is larger, the clamping position is closer to a machine tool band saw, the clamping rigidity of products is greatly improved, and machining is safer.

Description

Technical Field

[0001] The utility model relates to the field of hollow shaft production, in particular to a hollow shaft sawing auxiliary fixture for a sawing machine. Background Art

[0002] When processing a hollow shaft, the overall structure is symmetrical at both ends, so it needs to be sawed from the middle to separate it into two workpieces. When using a band saw to saw the hollow shaft after spinning, due to the product structure of the two ends being contracted and the limitation of the machine tool clamping stroke, the hydraulic caliper of the saw can only clamp a small amount. Figure 3 As shown, the limited clamping surface results in insufficient clamping force to resist cutting forces during machining, causing slippage and very low machining safety. Furthermore, the hollow shaft needs to be repositioned and clamped after each workpiece is machined to prevent the sawing position from shifting, which would affect the workpiece quality. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a hollow shaft sawing auxiliary clamp for a sawing machine, which comprises a caliper, and the caliper is fixed with a clamp with a semicircular cross-section by bolts. The inner surface of the clamp is provided with a first step, a second step and a third step from right to left, and the first step, the second step and the third step are in contact with the outer surface of one end of the hollow shaft.

[0004] In order to better limit the hollow shaft and determine the sawing position, the left end of the clamp is a limiting step.

[0005] The beneficial effects of the utility model are:

[0006] 1. Compared with the original caliper direct clamping, the clamping is longer, the clamping surface is more, and the clamping position is closer to the machine tool band saw, which greatly improves the clamping rigidity of the product and makes processing safer.

[0007] 2. The tooling has a limit step, which does not require repeated tool adjustment compared to the original caliper, and has high repeated positioning accuracy and stable size.

[0008] 3. Compared with the two-point clamping of calipers, it has a full-coverage clamping structure, which makes the clamping force more uniform and the clamping deformation smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0010] Figure 1It is a structural diagram of the present utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the side structure.

[0012] Figure 3 It is a structural diagram of existing caliper clamping.

[0013] In the figure: caliper 1, clamp 2, bolt 3, hollow shaft 4, first step 31, second step 32, third step 33, limit step 34. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0018] exist Figures 1 to 2In the figure, a hollow shaft sawing auxiliary clamp for a sawing machine is provided, which comprises a caliper 1, and the caliper 1 is fixed with a clamp 2 with a semicircular cross-section by a bolt 3. The inner surface of the clamp 2 is provided with a first step 31, a second step 32 and a third step 33 from right to left. The first step 31, the second step 32 and the third step 33 are in contact with the outer surface of one end of the hollow shaft 4.

[0019] Furthermore, the left end of the clamp 2 is a limiting step 34 .

[0020] When placing shaft parts, open the caliper 1 slightly so that the angle on the clamp 2 is larger than the diameter of the hollow shaft 4, and then insert the hollow shaft 4 into the clamp. One end of the hollow shaft 4 stops after hitting the limit step 34, and the caliper 1 clamps it. The first step 31, the second step 32 and the third step 33 fit with the outer surface of the hollow shaft 4, so that the clamp 2 can better clamp the hollow shaft 4, and then start the sawing operation.

[0021] The positioning step 34 is provided, so that positioning operation does not need to be performed every time, and positioning is faster.

[0022] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A hollow shaft sawing auxiliary fixture for a sawing machine, comprising a caliper (1), characterized in that: The caliper (1) is fixedly mounted with a fixture (2) having a semicircular cross-section via bolts (3); the inner surface of the fixture (2) is provided with a first step (31), a second step (32), and a third step (33) from right to left; the first step (31), the second step (32), and the third step (33) are in contact with the outer surface of one end of the hollow shaft (4).

2. The hollow shaft sawing auxiliary fixture for a sawing machine according to claim 1, characterized in that: The left end of the clamp (2) is a limiting step (34).

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