Servo semicircular umbrella-shaped tool magazine

Abstract

The utility model discloses a servo semicircular umbrella-shaped tool magazine. The servo semicircular umbrella-shaped tool magazine comprises an umbrella-shaped tool rest, a servo motor and a push-out device. The umbrella-shaped knife rest comprises a knife rest plate of a circular or semicircular structure and knife clamps evenly distributed on the knife rest plate in the circumferential direction. The servo motor is used for driving the tool rest plate to rotate around the axis. According to the servo semicircular umbrella-shaped tool magazine, the tool holders are annularly distributed on the tool rest plate, and tools can be clamped on the tool holders. The push-out device is used for driving the umbrella-shaped tool rest and the servo motor to reciprocate in the horizontal direction. During tool changing, the push-out device pushes out the tool rest firstly, and then the servo motor drives the tool rest plate to rotate so that the tool clamp at the designated position can rotate to the tool taking position. According to the tool magazine, the storage position of the tool and the pushing-in, pushing-out and rotating actions of the tool magazine can be easily observed, and students can conveniently understand the working principle and structure of the tool magazine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field, concretely relates to a servo semicircular umbrella type tool magazine. BACKGROUND

[0002] The tool magazine of machine tool is a device for storing processing tools, and it is an important component of machine tools such as numerical control machining centers. Its main function is to provide the required tools quickly and accurately according to the instructions of the numerical control system during the machining process of the machine tool, so as to realize the continuous automatic switching of various machining processes. The existing tool magazine of machine tool is usually divided into disc type tool magazine, chain type tool magazine, grid box type tool magazine and the like. The disc type tool magazine is shaped like a disc, and the tools are installed on the circumference of the disc. Its structure is relatively simple and compact, and it occupies a small space. It is usually suitable for machine tools with a small number of tools, and the general tool capacity is about 1-24. These parts require relatively few types of tools. The tools of the chain type tool magazine are installed on a circular chain. It has a large tool capacity, and generally can accommodate 30-120 tools, and a large chain type tool magazine can even accommodate more tools. This tool magazine is suitable for the machining of complex parts, because complex parts often require the use of many different tools. The grid box type tool magazine stores tools in a grid, and has a very high tool storage density. The number of tools in this tool magazine can vary from dozens to hundreds, and is suitable for machining occasions that require frequent tool changes and a large number of tool types. However, its structure is complex, and the tool changing time is relatively long.

[0003] For a teaching type tool magazine of machine tool, the number of tools is generally set according to the teaching outline and actual teaching needs. It usually does not have a large number of tools like an industrial production tool magazine of machine tool. For example, it can be configured with 10-20 tools, which are enough to cover basic turning, milling, drilling and other teaching demonstration tools, so that students can be familiar with the shapes, functions and applicable machining scenarios of different tools. In addition, in order to facilitate students to understand the working principle and structure of the tool magazine, the tool magazine used for the teaching type machine tool needs to be easy for students to observe the storage position of the tools and the rotating action of the tool magazine. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the utility model is to develop a servo semicircular umbrella type tool magazine, which is simple in structure, easy for students to understand the working principle and structure of the tool magazine, and suitable for teaching type machine tools.

[0005] The servo semicircular umbrella type tool magazine of the utility model comprises a umbrella-shaped tool holder, a servo motor and a pushing device. The umbrella-shaped tool holder comprises a tool holder plate with a circular or semicircular structure, and tool holders uniformly distributed on the tool holder plate in the circumferential direction. The servo motor is used to drive the tool holder plate to rotate around the axis. The pushing device is used to drive the umbrella-shaped tool holder and the servo motor to reciprocate in the horizontal direction.

[0006] Further, the umbrella-shaped tool holder cover has a shielding cover, and one side of the shielding cover is provided with an opening through which the tool holder extends.

[0007] Further, the tool holder plate is in a semicircular structure, and a shielding plate is fixed to the side of the tool holder plate other than the arc side; the shielding plate rotates together with the umbrella-shaped tool holder to close the opening of the shielding cover.

[0008] Further, the pushing device comprises a support plate, guide rails and a screw nut mechanism; the servo motor is vertically fixed on the support plate, and the bottom of the support plate is provided with a sliding block; the guide rails are located below the support plate and cooperate with the sliding block; and the screw nut mechanism is used to drive the support plate to slide along the guide rails.

[0009] Further, the screw nut mechanism comprises a screw motor located below the support plate, a screw fixedly connected with the rotating shaft of the screw motor coaxially and a nut fixed to the bottom of the support plate.

[0010] Further, the two guide rails are fixedly installed on the bottom plate, and a motor seat for fixedly installing the screw motor is arranged between the two guide rails.

[0011] Further, the sliding block is fixed to the bottom of the support plate through a sliding block seat, and the sliding block seat is provided with a limiting strip for contacting and positioning the side of the sliding block.

[0012] The servo semicircular umbrella-shaped tool magazine of the utility model, the tool holder is distributed on the tool holder plate in a ring shape, and the tool can be clamped on the tool holder. The pushing device is used to drive the umbrella-shaped tool holder and the servo motor to reciprocate along the horizontal direction. When the tool is changed, the pushing device pushes out the tool holder first, and then drives the tool holder plate to rotate through the servo motor so that the tool holder at the specified position is rotated to the tool taking position. The tool storage position, the pushing in, pushing out and rotating action of the tool magazine can be easily observed, and the working principle and structure of the tool magazine can be easily understood by students. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described in connection with the drawings and embodiments:

[0014] Figure 1 It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the structure schematic view of the utility model;

[0016] Figure 3 It is the structure schematic view of the utility model;

[0017] Figure 4 It is the structure schematic view of the utility model.

[0018] Reference numerals in the attached drawings: shield-1, umbrella-shaped tool holder-2, servo motor-3, ejection device-4, shield plate-21, tool holder plate-22, tool clamp-23, lead screw motor-41, base plate-42, slider-43, guide rail-44, lead screw-45, nut seat-46, slider seat-47, support plate-48. Detailed Implementation

[0019] like Figure 1 As shown, a servo semi-circular umbrella-shaped tool magazine of this embodiment includes an umbrella-shaped tool holder 2, a servo motor 3, and an ejection device 4; the umbrella-shaped tool holder 2 includes a semi-circular tool holder plate 22 and tool clips 23 evenly distributed along the circumference on the tool holder plate 22; the servo motor 3 is used to drive the tool holder plate 22 to rotate around the axis; the ejection device 4 is used to drive the umbrella-shaped tool holder 2 and the servo motor 3 to reciprocate in the horizontal direction.

[0020] like Figure 1 The umbrella-shaped tool holder 2 is covered by a shield 1. One side of the shield 1 has an opening for the tool holder 23 to extend, and the bottom of the shield 1 has a round hole for the upper part of the servo motor 3 to pass through. The shield 1 and the housing of the servo motor 3 are fixed together. When the servo motor 3 drives the tool holder plate 22 to rotate, causing the tool holder 23 at a designated position to rotate to the tool retrieval position, the tool holder 23 and the tool will extend through the opening on one side of the shield 1, facilitating tool retrieval. The shield 1 can prevent impurities from entering the tool magazine.

[0021] like Figure 2 As shown, the tool holder plate 22 has a semi-circular structure, and a baffle plate 21 is fixed on its non-circular side; the baffle plate 21 closes the opening of the shield 1 by rotating together with the umbrella-shaped tool holder 2; after the tool change is completed, the servo motor 3 drives the umbrella-shaped tool holder 2 to rotate so that the baffle plate 21 rotates to the opening of the shield 1. The size of the baffle plate 21 is slightly smaller than the opening size of the shield 1 to ensure that it can move inside the shield 1.

[0022] like Figure 3 As shown, the ejection device 4 includes a support plate 48, a guide rail 44, and a lead screw 45 and nut mechanism. The servo motor 3 is vertically fixed on the support plate 48, and a slider 43 is provided at the bottom of the support plate 48. The guide rail 44 is located below the support plate 48 and cooperates with the slider 43. The lead screw 45 and nut mechanism is used to drive the support plate 48 to slide along the guide rail 44. The ejection and retraction of the servo motor 3 and the umbrella-shaped tool holder 2 are realized by the sliding of the support plate 48.

[0023] like Figure 3As shown in the drawings, the screw rod 45 nut mechanism comprises a screw rod motor 41 located below the support plate 48, a screw rod 45 coaxially fixedly connected with the rotating shaft of the screw rod motor 41 through a shaft coupling, and a nut fixed to the bottom of the support plate 48, which is fixed to the bottom of the support plate 48 through a nut seat 46 and located between the two sliding blocks 43. The nut seat 46 is L-shaped in structure and has a mounting hole in the middle for mounting the nut; when it is necessary to push out or retract the tool magazine, the screw rod motor 41 drives the screw rod 45 to rotate, and the support plate 48 slides along the guide rail 44 due to the cooperation between the screw rod 45 and the nut.

[0024] As shown in the drawings, Figure 3 and 4 The two guide rails 44 are fixedly installed on the bottom plate 42, and a motor seat for fixedly installing the screw rod motor 41 is arranged between the two guide rails 44. The motor seat is also an L-shaped bent plate member, the bottom of which is fixedly connected with the bottom plate 42 through bolts, and the front end face of the shell of the screw rod motor 41 is in contact with the end face of the motor seat and is fixed through bolts.

[0025] As shown in the drawings, Figure 3 and 4 The sliding block 43 is fixed to the bottom of the support plate 48 through a sliding block seat 47, and the sliding block seat 47 is provided with a limiting strip for contacting and positioning the side of the sliding block 43. The limiting strip is integrally formed on one side of the sliding block seat 47. When the sliding block 43 is installed, the side of the sliding block 43 is first abutted against the limiting strip, and then the sliding block 43 is fixed on the sliding block seat 47 through fasteners. The limiting strip can pre-position the sliding block 43 when the sliding block 43 is installed, and can also prevent the sliding block seat 47 from moving inward in the horizontal direction during use, thereby improving the position accuracy of the sliding block 43.

[0026] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified; any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A servo half-round umbrella-type magazine, characterized by: The umbrella-shaped tool holder, servo motor and push-out device are included; the umbrella-shaped tool holder includes a circular or semi-circular tool holder plate and tool holders uniformly distributed on the tool holder plate in the circumferential direction; the servo motor is used to drive the tool holder plate to rotate around an axis; and the push-out device is used to drive the umbrella-shaped tool holder and servo motor to reciprocate in the horizontal direction.

2. The servo half-round umbrella-type magazine according to claim 1, characterized in that: The umbrella-shaped tool holder is covered with a shielding cover, and the shielding cover is provided with an opening for the tool holders to extend out.

3. The servo half-round umbrella-type magazine according to claim 2, characterized in that: The tool holder plate is in a semi-circular structure, and a shielding plate is fixed to the non-circular arc side of the tool holder plate; the shielding plate is rotated together with the umbrella-shaped tool holder to close the opening of the shielding cover.

4. The servo half-round umbrella-type magazine according to claim 3, characterized in that: The push-out device includes a support plate, guide rails and a lead screw nut mechanism; the servo motor is vertically fixed on the support plate, and the bottom of the support plate is provided with a sliding block; the guide rails are located below the support plate and cooperate with the sliding block; and the lead screw nut mechanism is used to drive the support plate to slide along the guide rails.

5. The servo half-round umbrella-type magazine according to claim 4, characterized in that: The lead screw nut mechanism includes a lead screw motor located below the support plate, a lead screw coaxially fixedly connected with the rotating shaft of the lead screw motor and a nut fixed to the bottom of the support plate.

6. The servo half-round umbrella-type magazine according to claim 5, characterized in that: The two guide rails are fixedly installed on the bottom plate, and a motor seat for fixedly installing the lead screw motor is arranged between the two guide rails.

7. The servo half-round umbrella-type magazine according to claim 6, characterized in that: The sliding block is fixed to the bottom of the support plate through a sliding block seat, and the sliding block seat is provided with a limiting strip for contacting and positioning the side of the sliding block.

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