Tool changing device of three-axis machining center

Abstract

The utility model provides a three-axis machining center tool changing device which comprises a base with a cavity inside, a supporting plate is arranged at the upper end of the base, a tool apron is arranged on the supporting plate in a sliding mode in the vertical direction, a milling cutter is arranged on the tool apron, a mounting plate is fixedly arranged on the supporting plate and located on one side of the tool apron, and the mounting plate is provided with a clamping groove. A tool rest is rotationally arranged below the mounting plate, two arc-shaped grooves with opposite arc surfaces are formed in the two sides of the tool rest correspondingly, and a driving mechanism used for driving the tool rest to rotate is arranged on the mounting plate. An efficient cooling system is additionally arranged in the device, cooling water in the water tank is sprayed to a milling cutter through the water pump, the temperature of the cutter is effectively reduced, cuttings are cleaned, in addition, safety and maintenance convenience are fully considered, waste liquid is conveniently discharged through the measures that a water outlet and a protective net are arranged on the base, and the service life of the cutter is prolonged. And foreign matters can be prevented from entering the device, so that the overall performance and the service life of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments, in particular to a tool changing device for a three-axis machining center. Background Art

[0002] The three-dimensional coordinate measuring fixture is a clamping device specially designed for the three-dimensional coordinate measuring machine. It is used to accurately and firmly position and fix the workpiece to be measured during the measurement process. This fixture allows the measuring machine to freely move the probe in three mutually perpendicular directions (X, Y, and Z axes) to obtain the geometric dimensions and position data of each surface and feature of the workpiece.

[0003] Traditional tool changing devices are often complex in structure, and the tool changing action takes a long time, affecting the continuity and efficiency of the entire machining process. In addition, if the heat generated by the milling cutter during high-speed cutting and the chip residue cannot be cleaned in time, it will not only reduce the service life of the milling cutter, but may also have an adverse effect on the machining accuracy. The existing tool changing devices do not take into account the cooling and cleaning functions of the milling cutter in their design, especially the lack of an effective integrated cooling structure, which makes it difficult to cool the tool while changing the tool. Utility Model Content

[0004] The utility model aims to provide a tool changing device for a three-axis machining center, aiming to solve the problems in the prior art that the milling cutter generates heat during high-speed cutting and the chips residue cannot be cleaned in time.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tool changing device for a three-axis machining center, comprising a base with a cavity inside, a support plate is arranged at the upper end of the base, a tool seat is arranged vertically slidingly on the support plate, a milling cutter is arranged on the tool seat, a mounting plate is fixedly arranged on the support plate, and the mounting plate is located on one side of the tool seat, a tool holder is rotatably arranged below the mounting plate, two arc grooves with opposite arc surfaces are provided on both sides of the tool holder, and a driving mechanism for driving the tool holder to rotate is arranged on the mounting plate.

[0006] Preferably, a water tank is provided above the base, a water pump is provided inside the water tank, a hose is provided at the water outlet of the water pump, a nozzle is provided at the other end of the hose after passing through the mounting plate, and the nozzle faces the tool holder.

[0007] Preferably, the driving mechanism is a motor arranged on a mounting plate.

[0008] Preferably, grooves are symmetrically provided on the base, and a liquid discharge port is provided below the base.

[0009] Preferably, a protective net is provided in the groove.

[0010] Preferably, a pad is provided at the lower end of the water pump.

[0011] The beneficial effects of the utility model are:

[0012] When the utility model is in use, a milling cutter structure that can slide vertically is arranged on the tool holder, and the rotation of the tool holder is realized by the driving mechanism to select the tools in different positions; at the same time, an efficient cooling system is added inside the device, and the cooling in the water tank is sprayed onto the milling cutter through a water pump, so as to effectively reduce the temperature of the tool and clean the chips. In addition, the device also fully considers the safety and maintenance convenience, and measures such as drainage ports and protective nets are arranged on the base, which not only facilitates the discharge of waste liquid, but also prevents foreign matter from entering the inside of the device, thereby improving the overall performance and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model.

[0014] Figure 2 It is a specific embodiment of the utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0015] Figure 3 It is a front cross-sectional structural schematic diagram of a water tank according to a specific embodiment of the utility model.

[0016] In the figure: 1. base; 2. support plate; 3. water tank; 4. hose; 5. mounting plate; 6. tool holder; 7. driving mechanism; 8. nozzle; 9. tool holder; 10. milling cutter; 11. water pump; 12. pad; 13. groove; 14. drain port; 15. arc groove; 16. protective net. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1-3 As shown, a tool changing device for a three-axis machining center includes a base 1 with a cavity inside, a support plate 2 is provided on the upper end of the base 1, a tool holder 9 is vertically slidably provided on the support plate 2, a milling cutter 10 is provided on the tool holder 9, a mounting plate 5 is fixedly provided on the support plate 2, and the mounting plate 5 is located on one side of the tool holder 9, a tool holder 6 is rotatably provided below the mounting plate 5, two arc grooves 15 with opposite arc surfaces are provided on both sides of the tool holder 6, and a driving mechanism 7 for driving the tool holder 6 to rotate is provided on the mounting plate 5.

[0019] In this embodiment, when the milling cutter 10 needs to be replaced, the replaced milling cutter 10 is first snapped into one of the arc grooves 15, and the motor is started. The motor drives the tool holder 6 to rotate so that the arc groove 15 on the tool holder 6 is snapped into the milling cutter 10 on the tool seat 9. At this time, the tool seat 9 releases the milling cutter 10, and the motor is started again to rotate the replaced milling cutter 10 to the bottom of the tool seat 9 and then lock it to complete the replacement.

[0020] like Figure 1 As shown, a water tank 3 is arranged above the base 1, a water pump 11 is arranged inside the water tank 3, a hose 4 is arranged at the water outlet end of the water pump 11, and a nozzle 8 is arranged at the other end of the hose 4 after passing through the mounting plate 5, and the nozzle 8 faces the tool holder 6.

[0021] In this embodiment, by starting the water pump 11, the water pump 11 transports the coolant in the water tank 3 through the hose 4 to the nozzle 8 for spraying, so as to rinse and cool the replaced milling cutter 10.

[0022] like Figure 1 As shown, the driving mechanism 7 is a motor arranged on the mounting plate 5 .

[0023] In this embodiment, the motor is fixedly arranged on the upper end of the mounting plate 5, and the output end of the motor passes through the mounting plate 5 and is welded to the upper end of the tool holder 6 to drive the tool holder 6 to rotate.

[0024] like Figure 1 As shown, grooves 13 are symmetrically provided on the base 1 , and a liquid discharge port 14 is provided below the base 1 .

[0025] In this embodiment, after the coolant rinses the milling cutter 10 , it flows to the top of the base 1 , is collected into the interior of the base 1 through the groove 13 , and is discharged through the drain port 14 .

[0026] like Figure 1 As shown, a protection net 16 is arranged in the groove 13 .

[0027] In this embodiment, a protective net 16 is provided to block the debris and prevent it from entering the interior of the base 1 .

[0028] like Figure 1 As shown, a pad 12 is provided at the lower end of the water pump 11 .

[0029] In this embodiment, the pad 12 is provided to increase the stability of the water pump 11 during operation.

[0030] Working principle: When the milling cutter 10 needs to be replaced, first the replaced milling cutter 10 is snapped into one of the arc grooves 15, and by starting the motor, the motor drives the tool holder 6 to rotate so that the arc groove 15 on the tool holder 6 is snapped into the milling cutter 10 on the tool holder 9. At this time, the tool holder 9 releases the milling cutter 10, and by starting the motor again, the replaced milling cutter 10 is rotated to the bottom of the tool holder 9 and then locked to complete the replacement, and by starting the water pump 11, the water pump 11 transports the coolant in the water tank 3 through the hose 4 to the nozzle 8 for spraying, so as to rinse and cool the replaced milling cutter 10.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tool changing device for a three-axis machining center, characterized in that: The invention comprises a base (1) having a cavity therein, a support plate (2) being arranged at the upper end of the base (1), a tool holder (9) being arranged on the support plate (2) for vertical sliding, a milling cutter (10) being arranged on the tool holder (9), a mounting plate (5) being fixedly arranged on the support plate (2), and the mounting plate (5) being located on one side of the tool holder (9), a tool holder (6) being rotatably arranged below the mounting plate (5), two arc-shaped grooves (15) with opposite arc surfaces being arranged on both sides of the tool holder (6), and a driving mechanism (7) for driving the tool holder (6) to rotate being arranged on the mounting plate (5).

2. A three-axis machining center tool changing device according to claim 1, characterized in that: A water tank (3) is arranged above the base (1), a water pump (11) is arranged inside the water tank (3), a hose (4) is arranged at the water outlet end of the water pump (11), and a nozzle (8) is arranged at the other end of the hose (4) after passing through the mounting plate (5), and the nozzle (8) faces the tool holder (6).

3. The tool changing device for a three-axis machining center according to claim 1, characterized in that: The driving mechanism (7) is a motor arranged on the mounting plate (5).

4. The tool changing device for a three-axis machining center according to claim 1, characterized in that: The base (1) is symmetrically provided with grooves (13), and a liquid discharge port (14) is provided below the base (1).

5. A three-axis machining center tool changing device according to claim 4, characterized in that: A protective net (16) is arranged in the groove (13).

6. A three-axis machining center tool changing device according to claim 2, characterized in that: A pad (12) is provided at the lower end of the water pump (11).

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