A milling flat tool for shafts

Abstract

This utility model relates to the field of milling flat-position fixture technology, and discloses a milling flat-position fixture for shafts, including a main table. Two sets of positioning fixtures are installed on the top outer surface of the main table, and each positioning fixture has a positioning groove inside. A shaft workpiece is positioned on both sides inside the positioning groove. Wedges are installed inside the main table to fix the shaft workpiece at the two corners of the positioning groove. An adjustment component is provided at the top of the positioning fixture to adjust the wedges up and down. The positioning fixture has hexagonal positioning grooves inside, and wedges divide the positioning grooves. Positioning is achieved by the inclined sides of the wedges and the two corners of the positioning groove. The wedges are adjusted up and down by the adjustment component. The wedge position can be adjusted by rotating a knob to fix the shaft workpiece according to different specifications, greatly increasing the practicality of the positioning fixture.

Description

Technical Field

[0001] This utility model relates to the field of milling flat part tooling technology, specifically a milling flat part tooling for shafts. Background Technology

[0002] Milling flattening refers to the process of forming a planar structure on the surface of shaft-like parts by milling. It is usually used to manufacture symmetrical or asymmetrical flattened structures. This process requires the use of specialized equipment (such as a milling flattening machine) and can achieve a machining accuracy of ±0.01mm. It is suitable for various materials such as iron, copper, and lead. During machining, corresponding tooling is required for limiting and fixing.

[0003] For example, Chinese Patent CN216758997U discloses a milling fixture for a rear through-shaft, comprising: a base plate, a first limiting groove longitudinally arranged at the center of the base plate, a second limiting groove arranged to the right of the first limiting groove, a first limiting block arranged in the first limiting groove, a second limiting block arranged in the second limiting groove, two rear through-shafts mounted on the first and second limiting blocks, and an upper pressure plate arranged on the upper side of the rear through-shafts. The beneficial effects of this utility model are: the rear through-shafts are restricted by the V-shaped and rectangular mounting grooves on the two limiting blocks, and fixed by the upper pressure plate, ensuring reliable fixation, improving machining accuracy, and enabling the processing of two parts at once, thus improving processing efficiency. However, traditional fixtures, when fixing shaft-type workpieces, require a fixture that corresponds to the specifications of the shaft parts; different specifications of shaft parts require different specifications of fixtures, which is cumbersome and has certain limitations in use. Therefore, a milling fixture for shafts is proposed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a milling flat-position tooling for shafts, which has advantages such as the ability to position shafts of different specifications, thus solving the problem of limitations in the use of traditional tooling.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned purpose of positioning shaft-type workpieces of different specifications, this utility model provides the following technical solution: a milling flat-position fixture for shafts, comprising:

[0008] The main platform has two sets of positioning fixtures installed on its top outer surface, and the positioning fixtures have positioning grooves inside.

[0009] A shaft-type workpiece is positioned on both sides inside the positioning groove. A wedge is installed inside the main platform to fix the shaft-type workpiece at the two corners of the positioning groove. An adjustment component is provided at the top of the positioning fixture to adjust the wedge up and down.

[0010] Preferably, the middle part of the wedge is trapezoidal, and the upper and lower parts of the wedge are columnar. Both the upper and lower ends of the wedge are slidably connected to the inner wall of the positioning fixture. The positioning groove is hexagonal in shape. The wedges are used to divide the positioning groove, and positioning is achieved by the inclined sides of the two sides of the wedges and the two corners of the positioning groove.

[0011] Preferably, the adjusting assembly includes a screw rotatably mounted in a positioning groove, and a wedge sleeved on the outer surface of the screw. The wedge is threadedly connected to the screw. A knob is rotatably mounted on the top of the positioning fixture, and the bottom end of the knob is fixedly connected to the top of the screw. The wedge can be adjusted up and down by the screw. According to different specifications of shaft workpieces, rotating the knob drives the screw at the bottom to rotate. The screw is threadedly connected to the wedge, thereby adjusting the position of the wedge and fixing the shaft workpiece.

[0012] Preferably, the positioning fixture has integrally connected side wings on both sides, and the outer surface of the side wings has an installation groove. A fixing bolt is installed inside the installation groove. The top outer surface of the main platform has a fixing groove, and the bottom end of the fixing bolt passes through the installation groove and is threadedly connected to the fixing groove. When it is necessary to adjust the position of the positioning fixture according to the length of the shaft workpiece, a tool can be used to rotate the fixing bolt to disengage it from the corresponding fixing groove. Then, the positioning fixture can be moved to select the corresponding fixing groove for installation and fixation on the main platform.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a milling flat part tooling for shafts, which has the following beneficial effects:

[0015] The positioning fixture has hexagonal positioning grooves inside, and wedges are set inside to divide the positioning grooves. Positioning is achieved by the two inclined sides of the wedges and the two corners of the positioning grooves. The wedges can be moved up and down by the adjustment component. The position of the wedges can be adjusted by rotating the knob according to different specifications of shaft workpieces to fix the shaft workpieces, which greatly increases the practicality of the positioning fixture. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the present utility model;

[0018] Figure 3This is an exploded view of the installation structure of the positioning tooling of this utility model;

[0019] Figure 4 This is a cross-sectional view of the positioning tooling of this utility model.

[0020] In the diagram: 1. Main platform; 11. Fixing groove; 2. Positioning fixture; 21. Wedge block; 22. Side wing; 23. Mounting groove; 24. Fixing bolt; 25. Knob; 26. Screw; 3. Shaft-type workpiece. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides the following technical solution: a milling flat position tooling for shafts, comprising: two sets of positioning tooling 2 are installed on the top outer surface of the main table 1, and the positioning tooling 2 has a positioning groove inside;

[0023] In this example, the middle part of the wedge 21 is trapezoidal, and the upper and lower parts of the wedge 21 are columnar. Both the upper and lower ends of the wedge 21 are slidably connected to the inner wall of the positioning fixture 2. The positioning groove is hexagonal in shape. The wedge 21 is set to divide the positioning groove. Positioning is achieved by the two inclined sides of the wedge 21 and the two corners of the positioning groove.

[0024] In this embodiment, the shaft workpiece 3 is arranged on both sides inside the positioning groove. The main platform 1 is equipped with a wedge block 21, which fixes the shaft workpiece 3 at the two corners of the positioning groove. The top of the positioning fixture 2 is equipped with an adjustment component, which adjusts the wedge block 21 up and down.

[0025] The adjustment assembly includes a screw 26 rotatably mounted in a positioning groove, and a wedge 21 sleeved on the outer surface of the screw 26. The wedge 21 is threadedly connected to the screw 26. A knob 25 is rotatably mounted on the top of the positioning fixture 2, and the bottom end of the knob 25 is fixedly connected to the top end of the screw 26. The wedge 21 can be adjusted up and down by moving the screw 26. According to different specifications of shaft workpieces 3, rotating the knob 25 will drive the screw 26 at the bottom end to rotate. The screw 26 is threadedly connected to the wedge 21, thereby adjusting the position of the wedge 21 and fixing the shaft workpiece 3.

[0026] In this example, the positioning fixture 2 has integrally connected side wings 22 on both sides. The outer surface of the side wings 22 has an installation groove 23. The installation groove 23 is installed with a fixing bolt 24. The top outer surface of the main platform 1 has a fixing groove 11. The bottom end of the fixing bolt 24 passes through the installation groove 23 and is threadedly connected to the fixing groove 11. When it is necessary to adjust the position of the positioning fixture 2 according to the length of the shaft workpiece 3, a tool can be used to rotate the fixing bolt 24 to disengage the fixing bolt 24 from the corresponding fixing groove 11. Then, the positioning fixture 2 can be moved to select the corresponding fixing groove 11 for installation and fixation on the main platform 1.

[0027] The working principle of this embodiment is as follows:

[0028] The positioning fixture 2 has a hexagonal positioning groove inside, and wedges 21 are set inside to divide the positioning groove. Positioning is achieved by the two inclined sides of the wedges 21 and the two corners of the positioning groove. The wedges 21 can be adjusted up and down by the screw 26. According to different specifications of shaft workpieces 3, the knob 25 is turned to drive the screw 26 at the bottom to rotate. The screw 26 is threadedly connected to the wedges 21, thereby adjusting the position of the wedges 21 and fixing the shaft workpieces 3. For shaft workpieces 3 with larger sizes, the wedges need to be adjusted upward, and vice versa.

[0029] When it is necessary to adjust the position of the positioning fixture 2 according to the length of the shaft workpiece 3, the fixing bolt 24 can be rotated using a tool to disengage the fixing bolt 24 from the corresponding fixing groove 11. Then, the positioning fixture 2 can be moved to select the corresponding fixing groove 11 for installation and fixation on the main table 1.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A milling jig for a flat position of a shaft, characterized by, include: The main platform (1) has two sets of positioning fixtures (2) installed on the top outer surface of the main platform (1), and the positioning fixtures (2) have positioning grooves inside. Shaft-type workpiece (3) is set on both sides inside the positioning groove. The main platform (1) is equipped with wedges (21) inside. The wedges (21) fix the shaft-type workpiece (3) at the two corners of the positioning groove. The positioning fixture (2) is equipped with an adjustment component at the top inside. The wedges (21) are adjusted up and down by adjusting the wedges (21).

2. The flat milling tooling for shafts according to claim 1, characterized in that: The middle part of the wedge (21) is trapezoidal, and the upper and lower parts of the wedge (21) are columnar, and both the upper and lower ends of the wedge (21) are slidably connected to the inner wall of the positioning fixture (2).

3. The milling flatness fixture for shafts according to claim 1, characterized in that: The positioning groove is hexagonal in shape.

4. The milling flatness fixture for shafts according to claim 1, characterized in that: The adjustment assembly includes a screw (26) rotatably mounted in a positioning groove, and a wedge (21) sleeved on the outer surface of the screw (26), wherein the wedge (21) is threadedly connected to the screw (26).

5. A milling fixture for a shaft type according to claim 4, characterized in that: The top of the positioning fixture (2) is rotatably mounted with a knob (25), and the bottom of the knob (25) is fixedly connected to the top of the screw (26).

6. The milling flat-position tooling for shafts according to claim 1, characterized in that: The positioning fixture (2) has integrated side wings (22) on both sides. The outer surface of the side wings (22) has an installation groove (23). The installation groove (23) has a fixing bolt (24) installed inside. The top outer surface of the main platform (1) has a fixing groove (11), and the bottom end of the fixing bolt (24) passes through the installation groove (23) and is threaded to the fixing groove (11).

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