CN220739482U - Adjustable tool rest for processing outer circle of eccentric inclined shaft - Google Patents

Abstract

The utility model provides an adjustable tool rest for processing an outer circle of an eccentric inclined shaft, which comprises a tool rest bottom plate, wherein one side of the top end of the tool rest bottom plate is provided with a conical column, waist-shaped grooves are formed in the tool rest bottom plate and positioned on two sides of the conical column, a tool rest mounting groove is formed in the top end of the conical column, and positioning grooves are formed in two sides of the tool rest mounting groove. The adjustable tool rest can be well used for machining the outer circle of the eccentric inclined shaft, solves the problem that a lathe cannot machine the eccentric shaft, and is stable and reliable in machining size and convenient to operate.

Description

Adjustable tool rest for processing outer circle of eccentric inclined shaft

Technical Field

The utility model relates to an adjustable tool rest for machining an outer circle of an eccentric inclined shaft, and belongs to the field of machining.

Background

The existing eccentric inclined shaft part is characterized in that in a shaft diameter dimension phi C and a step shaft phi A, two circular axes have an angle requirement of X DEG + -5' (see figure 1), a lathe can only process a linear shaft part, and the angular part cannot be processed, so that a U-shaped boring cutter holder is required to be designed, and the dimension processing of an eccentric shaft part is completed on a boring machine.

Disclosure of Invention

Aiming at the problems, the utility model aims to provide the adjustable tool rest for processing the outer circle of the eccentric inclined shaft, which can be well used for processing the outer circle of the eccentric inclined shaft, solves the problem that a lathe cannot process an eccentric shaft, and has stable and reliable processing size and convenient operation.

In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides an adjustable knife rest of eccentric inclined shaft excircle processing, it includes the knife rest bottom plate, top one side of knife rest bottom plate is provided with the toper post, the both sides that lie in the toper post on the knife rest bottom plate are provided with waist type groove, the top processing of toper post has the blade holder mounting groove, the both sides processing of blade holder mounting groove has the constant head tank.

And a positioning column is arranged at the bottom end of the tool rest bottom plate.

Inclined planes are symmetrically arranged at the top ends of the conical columns.

The center of the conical column is provided with a center hole, the tail end of the center hole is provided with a top stepped hole, and the top stepped hole is communicated with the center of the tool apron mounting groove.

During specific processing, the cutter holder mounting groove is matched with a fine boring cutter head, and the whole adjustable cutter frame is fixedly connected with the mountain tebucky aluminum alloy bridge body through a cutter holder bottom plate and a long bolt penetrating through the waist-shaped groove; and two groups of adjustable tool rests are symmetrically fixed on the mountain-Tevickers aluminum alloy bridge body, wherein the mounting positions of the fine boring tool bits of one group of adjustable tool rests are replaced by weight modules.

The finish boring tool bit adopts forward or reverse rotation, only needs to turn over the finish boring tool bit during adjustment, and can realize the processing of an inner hole and an outer circle.

The utility model has the following beneficial effects:

1. the utility model solves the problem that the lathe cannot process the eccentric shaft, and the eccentric shaft processing method is finished on the boring machine by designing the U-shaped boring tool rest, so that the processing size is stable and reliable, and the operation is convenient.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a front view of the components of the present utility model.

FIG. 2 is a schematic illustration of the part process of the present utility model.

Fig. 3 is a front cross-sectional view of the adjustable tool holder of the utility model.

Fig. 4 is a top view of an adjustable rest of the present utility model.

Fig. 5 is a right side view of the adjustable tool holder of the utility model.

Fig. 6 is a front view of the processing reference determined in step 1 of the present utility model.

Fig. 7 is a right side view of the processing reference determined in step 1 of the present utility model.

FIG. 8 is a schematic diagram of step 2.1 of the present utility model.

Fig. 9 is a schematic diagram of step 2.2 of the present utility model.

FIG. 10 is a schematic diagram of step 2.3 of the present utility model.

In the figure: the tool rest comprises a positioning column 1, a tool rest bottom plate 2, a central hole 3, a conical column 4, a top stepped hole 5, a tool rest mounting groove 6, a positioning groove 7, a waist-shaped groove 8, a reference surface 10, a scribing line M11 and a scribing line N12.

Detailed Description

Embodiments of the present utility model will be further described with reference to the accompanying drawings.

Example 1:

referring to fig. 1-10, an adjustable tool rest for machining an outer circle of an eccentric inclined shaft comprises a tool rest bottom plate 2, wherein a conical column 4 is arranged on one side of the top end of the tool rest bottom plate 2, waist-shaped grooves 8 are formed in the tool rest bottom plate 2 and located on two sides of the conical column 4, a tool rest mounting groove 6 is formed in the top end of the conical column 4, and positioning grooves 7 are formed in two sides of the tool rest mounting groove 6. The adjustable tool rest can be well used for machining the outer circle of the eccentric inclined shaft, solves the problem that a lathe cannot machine the eccentric shaft, and is stable and reliable in machining size and convenient to operate.

Further, a positioning column 1 is arranged at the bottom end of the tool rest bottom plate 2. The positioning post 1 ensures the reliable positioning of the subsequent installation and fixation.

Further, both the top ends of the conical column 4 are symmetrically provided with inclined planes 9. Subsequent positioning and installation are facilitated by the inclined surface 9.

Further, a center hole 3 is formed in the center of the conical column 4, a top stepped hole 5 is formed in the tail end of the center hole 3, and the top stepped hole 5 is communicated with the center of the tool holder mounting groove 6.

Further, during specific processing, the tool apron mounting groove 6 is matched with a fine boring tool bit, and the whole adjustable tool rest is fixedly connected with the mountain tebucky aluminum alloy bridge body through the tool rest bottom plate 2 by a long bolt penetrating through the waist-shaped groove 8; and two groups of adjustable tool rests are symmetrically fixed on the mountain-Tevickers aluminum alloy bridge body, wherein the mounting positions of the fine boring tool bits of one group of adjustable tool rests are replaced by weight modules.

Furthermore, the fine boring tool bit adopts forward or reverse rotation, only needs to turn over the fine boring tool bit during adjustment, and can realize the processing of an inner hole and an outer circle.

Example 2:

researching the characteristics of parts and establishing a processing scheme:

referring to fig. 1, because the parts are of special eccentric shaft structures, the machining of the outer circle of the linear shaft can only be completed on a lathe, the machining of the outer circle and the inner hole of the X-degree eccentric shaft cannot be completed, proper machining steps are required to be established for boring machine machining, and a special U-shaped cutter frame is manufactured to complete the machining of the outer circle of the inclined shaft.

Referring to fig. 2, a solid line is a turning drawing and a two-dot chain line is a finished product drawing.

Secondly, designing an adjustable tool rest:

referring to fig. 4-5, the design of the adjustable tool holder mainly considers the characteristics of light weight, modularization and large diameter adjustment range of the tool, and the lighter weight can reduce the load of a main shaft during boring machine processing, so that the processing size is more stable and reliable. The design of the tool rest is improved on the basis of the mountain-tervelar aluminum alloy bridge body and the finish boring tool bit, the finish boring tool bit is connected with the bridge frame by designing the extension modules, the extension modules are designed to be a pair and are respectively connected with two mounting surfaces on the end face of the bridge frame, a U-shaped boring tool body structure is formed, and the outer circle size of the eccentric shaft is processed.

The module is designed into a taper structure, the rigidity of the module can be effectively improved, the connecting hole of the mounting surface of the base is designed into a waist-shaped groove shape, the radial adjusting range of the tool rest can be increased, the locating grooves at the straight opening of the tool bit are designed into two symmetrical positions, the fine boring head can be installed in the forward direction and the reverse direction, and the tool bit can be installed only by turning over the tool bit, so that the processing of an inner hole and an outer circle can be realized.

Example 3:

the method for processing the eccentric inclined shaft excircle by adopting the adjustable tool rest for processing the eccentric inclined shaft excircle comprises the following steps:

step 1, determining a processing reference:

referring to fig. 6-7, the boring machine is positioned by a V-shaped iron clamp, the outer circle generatrix of the shaft is aligned, an edge is milled on the processing end face of the X-degree inclined shaft to be used as a subsequent processing alignment reference surface 10;

step 2, determining the center of an eccentric shaft of the boring machine, and establishing a subsequent process reference:

step 2.1, positioning the boring machine by using V-shaped iron, aligning a shaft bus, establishing a reference alignment by using an end face, and setting the error within 0.01, wherein an X axis is along an excircle bus line M11 and a line N12 as shown in FIG. 8, so that the boring machine is convenient for a subsequent processing alignment center to use;

step 2.2, the workbench is rotated by an angle X DEG as shown in fig. 9, circles at a scribing line M11, the center of an X-degree inclined shaft is determined by an eccentric Y according to a calculated value, and circles at a scribing line N12 are rechecked, wherein the circles are concentric;

step 2.3, as shown in fig. 10, the milling cutter is programmed to mill the outer circle phi A of the inclined shaft to the process size, the bottom surface is reserved, the symmetry degree is detected to meet the requirement, after confirming that the symmetry degree is correct, a finished product of a middle hole is processed, the outer circle phi Ag5 of the inclined shaft is milled and bored to the process size requirement, the depth is controlled, the end face finished product of the inclined shaft is milled, the size is controlled, the end face screw hole finished product is processed, the installation of a subsequent inclined shaft end grinding tool is ensured, and the reference establishment is completed;

step 3, eccentric shaft processing:

the boring machine is positioned by V-shaped iron, the outer circle generatrix of the straight line shaft is aligned, the heights of the key groove side lines at two sides are consistent, the workbench rotates for X degrees, the center of an X/Y shaft is determined according to the outer circle of the inclined shaft phi Ag5, the milling cutter is programmed and milled in a numerical control mode to the size requirement before finish boring, the depth size is controlled, 4X 4 steps are reserved at the root, the subsequent R4 arc machining is facilitated, the U-shaped boring cutter head is replaced, the finished product with the size of phi Ag5-0.015/-0.035 is finely bored, and the R4 arc finished product at the root is programmed and milled by the R4 milling cutter.

Claims (6)

1. The utility model provides an adjustable knife rest of eccentric inclined shaft excircle processing, its characterized in that includes knife rest bottom plate (2), top one side of knife rest bottom plate (2) is provided with toper post (4), knife rest bottom plate (2) are gone up and are located both sides of toper post (4) and are provided with waist type groove (8), the top processing of toper post (4) has blade holder mounting groove (6), the both sides processing of blade holder mounting groove (6) have constant head tank (7).

2. An adjustable tool holder for machining an outer circle of an eccentric inclined shaft according to claim 1, wherein: the bottom end of the tool rest bottom plate (2) is provided with a positioning column (1).

3. An adjustable tool holder for machining an outer circle of an eccentric inclined shaft according to claim 1, wherein: inclined planes (9) are symmetrically arranged at the top ends of the conical columns (4).

4. An adjustable tool holder for machining an outer circle of an eccentric inclined shaft according to claim 1, wherein: the center of the conical column (4) is provided with a center hole (3), the tail end of the center hole (3) is provided with a top stepped hole (5), and the top stepped hole (5) is communicated with the center of the tool apron mounting groove (6).

5. An adjustable tool holder for machining an outer circle of an eccentric inclined shaft according to claim 1, wherein: during specific processing, the tool apron mounting groove (6) is matched with a fine boring tool bit, and the whole adjustable tool rest is fixedly connected with the mountain-Tevek aluminum alloy bridge body through a long bolt penetrating through the waist-shaped groove (8) by the tool rest bottom plate (2); and two groups of adjustable tool rests are symmetrically fixed on the mountain-Tevickers aluminum alloy bridge body, wherein the mounting positions of the fine boring tool bits of one group of adjustable tool rests are replaced by weight modules.

6. An adjustable tool holder for machining an outer circle of an eccentric inclined shaft according to claim 5, wherein: the finish boring tool bit adopts forward or reverse rotation, only needs to turn over the finish boring tool bit during adjustment, and can realize the processing of an inner hole and an outer circle.