Milling machine tool for directly milling inner guide key

Abstract

The utility model discloses a milling machine tool for directly milling an inner feather key, which relates to the technical field of machining equipment and comprises a connecting box, a connecting hole used for being installed on a milling machine is arranged on the edge of the upper surface of the connecting box, and a suspension beam used for extending into a workpiece is fixedly installed on the lower portion of the connecting box. A driven box is fixedly installed at the end, away from the connecting box, of the cantilever beam, a vertical rotating shaft is arranged in the middle of the driven box, and a cutter installing hole is formed in the lower end of the rotating shaft. A transmission disc used for being in transmission connection with the output end of a milling machine is arranged in the middle of the upper surface of the connecting box, and the transmission disc is in transmission connection with the rotating shaft through a transmission mechanism. The method has the beneficial effects that the inner guide key is directly milled on a milling machine, a broaching machine or other tools do not need to be replaced, and the machining process is greatly simplified; the investment of equipment such as a broaching machine is reduced, and the production cost is reduced; the cutting tool can be replaced or adjusted according to needs so as to adapt to machining of guide key grooves with different specifications and requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a milling machine tool for directly milling an inner guide key. Background Art

[0002] The machining of guide keys is a common process in the machinery manufacturing industry. Traditional machining methods typically require a broaching machine to create the keyway before continuing with other machining steps. This approach not only increases equipment investment but also increases operational complexity. Therefore, developing a tool that can mill internal guide keys directly on a milling machine has significant practical value and economic benefits. Utility Model Content

[0003] The purpose of the present utility model is to provide a milling machine tool for directly milling the internal guide key in order to solve the above-mentioned problem. The tool can cooperate with the milling machine to directly mill the guide keyway on the internal workpiece without replacing the broaching machine or other tools, thereby simplifying the processing process and reducing equipment investment.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A milling machine tool for directly milling an internal guide key comprises a connecting box, an edge of the upper surface of the connecting box being provided with a connecting hole for being installed on a milling machine, a cantilever beam for extending into the interior of a workpiece being fixedly installed on the lower part of the connecting box, a driven box being fixedly installed on one end of the cantilever beam away from the connecting box, a vertical rotating shaft being provided in the middle of the driven box, a tool mounting hole being provided at the lower end of the rotating shaft; a transmission disk for being transmission-connected to the output end of the milling machine being provided in the middle of the upper surface of the connecting box, and the transmission disk and the rotating shaft being transmission-connected via a transmission mechanism.

[0006] Preferably, the rotating shaft is clamped in the driven box and rotates.

[0007] Preferably: the transmission mechanism includes a driving gear, a transmission rack and a driven gear, the driving gear is fixedly mounted on the lower end of the transmission disc, the driven gear is fixedly mounted on the upper end of the rotating shaft, and the transmission rack is sleeved on the driving gear and the driven gear for transmission.

[0008] Preferably, the suspension beam extends from one end of the driven box to the inside of the connection box and is fixedly connected to the inner wall of the connection box. A reinforcing rib is fixedly installed between the side of the connection box close to the driven box and the suspension beam.

[0009] Preferably, the connecting box and the driven box are both square boxes or cylindrical boxes.

[0010] Preferably, the cantilever beam is a square tube or a round tube structure.

[0011] Preferably, a transmission hole corresponding to the output end of the milling machine is opened in the middle of the upper surface of the transmission disc.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Simplify the processing process: By milling the inner guide key directly on the milling machine, there is no need to change the broaching machine or other tools, which greatly simplifies the processing process;

[0014] 2. Reduce equipment investment: reduce the investment in equipment such as broaching machines and reduce production costs;

[0015] 3. Strong adaptability: The cutting tool can be replaced or adjusted as needed to adapt to the processing of guide keyways of different specifications and requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a schematic diagram of the main structure of Example 1 of a milling machine tool for directly milling an inner guide key described in the utility model.

[0018] Figure 2 It is a front view of Example 1 of a milling machine tool for directly milling an inner guide key according to the utility model.

[0019] Figure 3 It is an enlarged view of point A of embodiment 1 of a milling machine tool for directly milling an inner guide key described in the utility model.

[0020] Figure 4 It is a top view of embodiment 1 of a milling machine tool for directly milling an inner guide key according to the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Connecting box; 2. Suspension beam; 3. Transmission plate; 4. Driving gear; 5. Transmission rack; 6. Driven box; 7. Rotating shaft; 8. Connecting hole; 9. Reinforcement rib; 10. Driven gear; 11. Tool mounting hole; 12. Transmission hole. DETAILED DESCRIPTION

[0023] 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, rather than indicating or implying 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 a limitation on the present invention. In addition, the terms "first", "second" and the like 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 limited to "first", "second" and the like may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention will be further described below with reference to the accompanying drawings: Example 1

[0026] like Figures 1-4 As shown, a milling machine tool for directly milling an internal guide key includes a connecting box 1, and a connecting hole 8 for mounting on a milling machine is provided on the edge of the upper surface of the connecting box 1. The connecting hole 8 is a threaded hole. A suspension beam 2 for extending into the interior of a workpiece is fixedly installed at the lower part of the connecting box 1. A driven box 6 is fixedly installed at one end of the suspension beam 2 away from the connecting box 1. A vertical rotating shaft 7 is provided in the middle of the driven box 6. The rotating shaft 7 rotates in the driven box 6 through a bearing. A tool mounting hole 11 is provided at the lower end of the rotating shaft 7. The tool mounting hole 11 is used to fix and install the tool; a transmission disk 3 for transmission connection with the output end of the milling machine is provided in the middle of the upper surface of the connecting box 1, and a transmission hole 12 corresponding to the output end of the milling machine is provided in the middle of the upper surface of the transmission disk 3. The transmission hole 12 is an inner hexagonal hole, and the transmission disk 3 is connected to the rotating shaft 7 through a transmission mechanism.

[0027] The transmission mechanism includes a driving gear 4, a transmission rack 5 and a driven gear 10. The driving gear 4 is fixedly mounted on the lower end of the transmission disc 3, and the driven gear 10 is fixedly mounted on the upper end of the rotating shaft 7. The transmission rack 5 is sleeved on the driving gear 4 and the driven gear 10 for transmission.

[0028] The suspension beam 2 extends from one end of the driven box 6 to the inside of the connection box 1 and is fixedly connected to the inner wall of the connection box 1. A reinforcing rib 9 is fixedly installed between the side of the connection box 1 close to the driven box 6 and the suspension beam 2 to improve shear and crack resistance.

[0029] The connecting box 1 and the driven box 6 are both square boxes; the suspension beam 2 is a square tube. Example 2

[0030] A milling machine tool for directly milling an internal guide key includes a connecting box 1. A connecting hole 8 for mounting on a milling machine is provided on the edge of the upper surface of the connecting box 1. The connecting hole 8 is a threaded hole. A suspension beam 2 for extending into the interior of a workpiece is fixedly installed at the lower part of the connecting box 1. A driven box 6 is fixedly installed at one end of the suspension beam 2 away from the connecting box 1. A vertical rotating shaft 7 is provided in the middle of the driven box 6. The rotating shaft 7 rotates in the driven box 6 through a bearing. A tool mounting hole 11 is provided at the lower end of the rotating shaft 7. The tool mounting hole 11 is used to fix and install the tool; a transmission disk 3 for transmission connection with the output end of the milling machine is provided in the middle of the upper surface of the connecting box 1. A transmission hole 12 corresponding to the output end of the milling machine is provided in the middle of the upper surface of the transmission disk 3. The transmission hole 12 is an inner hexagonal hole. The transmission disk 3 is connected to the rotating shaft 7 through a transmission mechanism.

[0031] The transmission mechanism includes a driving gear 4, a transmission rack 5 and a driven gear 10. The driving gear 4 is fixedly mounted on the lower end of the transmission disc 3, and the driven gear 10 is fixedly mounted on the upper end of the rotating shaft 7. The transmission rack 5 is sleeved on the driving gear 4 and the driven gear 10 for transmission.

[0032] The suspension beam 2 extends from one end of the driven box 6 to the inside of the connection box 1 and is fixedly connected to the inner wall of the connection box 1. A reinforcing rib 9 is fixedly installed between the side of the connection box 1 close to the driven box 6 and the suspension beam 2 to improve shear and crack resistance.

[0033] The connecting box 1 and the driven box 6 are both cylindrical boxes; the suspension beam 2 is a circular tube structure.

[0034] Working principle: During the processing, the connecting box 1 is first fixedly connected to the milling machine through the connecting hole 8 to ensure a close fit between the tooling and the milling machine. Then, the suspension beam 2 is inserted into the inner hole of the workpiece to be processed. The power drive of the milling machine drives the transmission disc 3 to rotate, and the driving gear 4, the transmission rack 5 and the driven gear 10 are transmitted. The rotating shaft 7 and the tool installed at the lower end of the rotating shaft 7 rotate, so that the tool mills in the inner hole of the workpiece, thereby directly processing the guide keyway. The shape and size of the tool can be designed and adjusted according to actual needs to adapt to the processing of guide keyways of different specifications and requirements.

[0035] The milling machine, tool, and tool mounting hole 11 are all universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will also have various changes and improvements, and these changes and improvements will fall within the scope of the utility model to be protected.

Claims

1. A milling machine tool for directly milling an inner guide key, comprising a connection box (1), characterized in that: A connection hole (8) for mounting on a milling machine is provided on the edge of the upper surface of the connection box (1); a suspension beam (2) for extending into the interior of a workpiece is fixedly installed on the lower part of the connection box (1); a driven box (6) is fixedly installed on one end of the suspension beam (2) away from the connection box (1); a vertical rotating shaft (7) is provided in the middle of the driven box (6); a tool mounting hole (11) is provided at the lower end of the rotating shaft (7); a transmission disc (3) for transmission connection with the output end of the milling machine is provided in the middle of the upper surface of the connection box (1); the transmission disc (3) is connected to the rotating shaft (7) through a transmission mechanism.

2. A milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: The rotating shaft (7) is clamped in the driven box (6) and rotates.

3. The milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: The transmission mechanism comprises a driving gear (4), a transmission rack (5) and a driven gear (10), wherein the driving gear (4) is fixedly mounted on the lower end of the transmission disc (3), the driven gear (10) is fixedly mounted on the upper end of the rotating shaft (7), and the transmission rack (5) is sleeved on the driving gear (4) and the driven gear (10) for transmission.

4. The milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: The suspension beam (2) extends from one end of the driven box (6) to the interior of the connection box (1) and is fixedly connected to the inner wall of the connection box (1). A reinforcing rib (9) is fixedly installed between the side of the connection box (1) close to the driven box (6) and the suspension beam (2).

5. The milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: The connecting box (1) and the driven box (6) are both square boxes or cylindrical boxes.

6. The milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: The suspension beam (2) is a square tube or a round tube structure.

7. The milling machine tool for directly milling an inner guide key according to claim 1, characterized in that: A transmission hole (12) corresponding to the output end of the milling machine is provided in the middle of the upper surface of the transmission disc (3).

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