A heavy-duty disc-type tool changing device and tool changing method

Abstract

The present invention discloses a heavy-duty disc-type tool changing device and a tool changing method, wherein the device comprises a fixed bracket, a base, a rotary disc, a knife-beating spring, a fixed disc, a tool clamp tray rotary positioning pin shaft, a roller bearing, a rotary disc in-position positioning shaft, a foot pedal, a tool clamp rotary tray, a positioning key, a tool clamp assembly, a clamping knife spring, a tool, a pin shaft, a spring, a positioning sleeve, a bearing and a rotating shaft. The present invention can replace heavy-duty tools for a CNC gantry machining center, and can replace blades on the tool changing device. The spring knife beating is used to avoid direct knife beating damage to the tool clamp and the rotary disc, reduce the labor intensity of the machine tool operator in replacing heavy-duty tools, reduce the machine tool auxiliary time, and improve the machine tool work efficiency.

Description

Technical Field

[0001] The invention relates to a heavy-duty disc-type tool changing device and a tool changing method, which are suitable for replacing heavy-duty tools in a numerically controlled gantry turnout machining center. Background Art

[0002] Most CNC gantry turnout machining centers are equipped with tool changing devices, but currently most tool changing devices have defects such as light tool weight, blade cannot be replaced on the tool changing device, and tool beating is performed directly. This tool changing device can solve the technical defects of existing tool changing devices such as light tool weight, blade cannot be replaced, and tool beating is performed directly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a heavy-duty disc-type tool changing device in view of the defects in the prior art.

[0004] In order to solve this technical problem, the present invention provides a heavy-duty disc-type tool changing device, including a fixed bracket, a base, a rotating disc, a knife-beating spring, a fixed disc, a tool clamp tray rotating into position positioning pin shaft, a roller bearing, a rotating disc into position positioning shaft, a pedal, a tool clamp rotating tray, a positioning key, a tool clamp assembly, a clamping knife spring, a tool, a pin shaft, a spring, a positioning sleeve, a bearing and a rotating shaft. The fixed bracket is fixed on the ground, the base is mounted on the fixed bracket by screws, the rotating disc is mounted on the base, and the rotating shaft is mounted on the rotating disc by a bearing. The turntable can rotate around the rotating axis; the fixed plate is installed on the turntable by screws, the tool clamp turntable is installed on the fixed plate by roller bearings, and the tool clamp turntable rotates into position positioning pin is installed on the tool clamp turntable; the positioning key and the tool clamp assembly are installed on the tool clamp turntable, and the tool clamp spring is installed in the tool clamp mounting hole of the tool clamp assembly. When changing the tool, the tool clamp of the tool clamp assembly releases the tool through the tool clamp spring; the foot pedal is connected to the turntable into position positioning shaft through the pin shaft, and after the turntable is manually rotated into position, it is precisely positioned through the positioning shaft.

[0005] The fixed disk is provided with a tool holder tray rotation positioning pin shaft. When the tool blade is replaced, the tool holder rotation tray is rotated. After the tool holder rotation tray is rotated into place, it is positioned by the tool holder tray rotation positioning pin shaft.

[0006] The present invention also provides a tool changing method, the steps of which are as follows:

[0007] Changing tools: Depress the foot pedal, the spring is compressed, the rotary disk is in place and the positioning shaft comes out of the positioning sleeve on the rotary disk. Manually rotate the rotary disk of the tool changing device, rotate the tool to the tool changing position, and then release the foot pedal. At this time, the rotary disk is in place and the positioning shaft is stretched by the spring. The rotary disk is in place and the positioning shaft is pushed into the positioning sleeve on the rotary disk to achieve accurate positioning of the tool at the tool changing position. The positioning sleeve is installed in the positioning hole of the rotary disk and connected by transition fit. After positioning is completed, the machine tool spindle moves to the tool changing position, and the spindle takes the tool from the rotary disk. During the tool taking process, the tool beating force is applied to the tool beating spring, and the tool beating spring is compressed, which avoids the force deformation of the tool changing device. After the spindle takes the tool, it moves out of the tool changing position and proceeds to the next step. The tool change is completed;

[0008] Replacing the tool blade: Pull out the tool holder tray and rotate the positioning pin into place, and manually rotate the tool holder rotary tray to the appropriate position to replace the blade. After the blade is replaced, manually rotate the tool holder rotary tray to the initial position, insert the tool holder tray and rotate the positioning pin into place, and the tool blade replacement is completed.

[0009] Beneficial effects: The present invention can replace heavy tools for CNC gantry machining centers, and the blades can be replaced on the tool changing device. The spring tool is used to avoid damage to the tool holder and the rotary cutter disc caused by direct tool breaking, which reduces the labor intensity of machine tool operators in replacing heavy tools, reduces machine tool auxiliary time, and improves machine tool work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic front view of the structure of the present invention;

[0011] Figure 2 A schematic top view of the structure of the present invention;

[0012] Figure 3 A sectional view of the main view of the present invention;

[0013] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A.

[0014] In the figure: 1 fixed bracket, 2 base, 3 turntable, 4 knife spring, 5 fixed plate, 6 tool clamp tray rotation positioning pin, 7 roller bearing, 8 turntable in place positioning shaft, 9, foot pedal, 10 tool clamp turntable, 11 positioning key, 12 tool clamp assembly, 13 clamp knife spring, 14 tool, 15 pin, 16 spring, 17 positioning sleeve, 18 bearing, 19 rotating shaft. DETAILED DESCRIPTION

[0015] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 — Figure 4 As shown, the present invention provides a heavy-duty disc-type tool changing device, including a fixed bracket 1, a base 2, a rotating disc 3, a knife-beating spring 4, a fixed disc 5, a tool clamp tray rotation positioning pin 6, a roller bearing 7, a rotating disc in place positioning shaft 8, a pedal 9, a tool clamp rotating tray 10, a positioning key 11, a tool clamp assembly 12, a clamping knife spring 13, a tool 14, a pin 15, a spring 16, a positioning sleeve 17, a bearing 18 and a rotating shaft 19, the fixed bracket 1 is fixed on the ground, the base 2 and the rotating disc 3 are installed on the fixed bracket 1, the rotating shaft 19 is installed on the rotating disc 3 through a bearing, and the rotating disc 3 can rotate around the rotating shaft 19; the fixed disc 5 is installed on the rotating disc 3 On the upper part, the tool clamp rotary tray 10 is installed on the fixed plate 5 through the roller bearing 7, the tool clamp tray rotation positioning pin 6 is installed on the tool clamp rotary tray 10, the positioning key 11 and the tool clamp assembly 12 are installed on the tool clamp rotary tray 10, the knife-breaking spring 4 is installed on the tool clamp assembly 12 through bolts, and the loosening knife spring 13 is installed in the knife clamp mounting hole of the tool clamp assembly 12. When changing the tool, the knife-breaking force is applied to the knife-breaking spring 4, the knife-breaking spring 4 is compressed, and the tool clamp assembly 12 is opened and closed by the loosening knife spring 13; the foot pedal 9 is connected with the rotary disk positioning shaft 8 through the pin 15. After the rotary disk 3 is manually rotated into position, it is precisely positioned by the rotary disk positioning shaft 8.

[0017] The fixed plate 5 is provided with a tool holder tray rotation positioning pin 6. When the tool blade is replaced, the tool holder rotation tray 10 is rotated. After the tool holder rotation tray 10 is rotated into place, it is positioned by the tool holder tray rotation positioning pin 6.

[0018] Working process of the present invention:

[0019] When the machine tool needs to change the tool, step on the foot pedal 9, the spring 16 is compressed, the turntable is in place and the positioning shaft 8 comes out of the positioning sleeve 17 on the turntable 3, manually rotate the turntable 3 of the tool changing device, and rotate the replaced tool 14 to the tool changing position, then release the foot pedal 9. At this time, the turntable is in place and the positioning shaft 8 is subjected to the tensile force of the spring 16, and the turntable is in place and the positioning shaft 8 is pushed into the positioning sleeve 17 on the turntable 3 to achieve accurate positioning of the tool at the tool changing position. The positioning sleeve 17 is installed in the positioning hole of the turntable and connected by transition fit. After the positioning is completed, the machine tool spindle moves to the tool changing position, and the spindle takes the tool 14 from the turntable 3. During the tool taking process, the tool beating force is applied to the tool beating spring 4, and the tool beating spring 4 is compressed, thereby avoiding the force deformation of the tool changing device. After the spindle takes the tool 14, it moves out of the tool changing position and performs the next step, and the tool replacement is completed.

[0020] When replacing the blade of the tool, pull out the tool clamp tray rotation positioning pin 6, and manually rotate the tool clamp rotary tray 10 to the appropriate position to replace the blade. After the blade is replaced, manually rotate the tool clamp rotary tray 10 to the initial position, insert the tool clamp tray rotation positioning pin 6, and the tool blade replacement is completed.

[0021] The present invention can replace heavy tools for a CNC gantry turnout machining center and can ensure that blades can be replaced on a rotary disc, thereby reducing the labor intensity of machine tool operators. The tool changing device uses a spring tool-beating device to avoid damage to a tool holder and a rotary cutter disc caused by direct tool-beating.

[0022] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A heavy-duty disc-type tool changing device, characterized in that: The invention comprises a fixed support (1), a base (2), a rotating disk (3), a knife spring (4), a fixed disk (5), a positioning pin shaft (6) for rotating a knife clamp tray, a roller bearing (7), a rotating disk positioning shaft (8), a pedal (9), a knife clamp rotating tray (10), a positioning key (11), a knife clamp assembly (12), a knife spring (13), a knife (14), a pin shaft (15), a spring (16), a positioning sleeve (17), a bearing (18) and a rotating shaft (19), wherein the fixed support (1) is fixed on the ground, the base (2) and the rotating disk (3) are mounted on the fixed support (1), the rotating shaft (19) is mounted on the rotating disk (3) through a bearing, and the rotating disk (3) can rotate around the rotating shaft (19); the fixed disk ( 5) is installed on the turntable (3), the tool clamp turntable (10) is installed on the fixed plate (5) through the roller bearing (7), and the tool clamp turntable rotation positioning pin (6) is installed on the tool clamp turntable (10); the positioning key (11) and the tool clamp assembly (12) are installed on the tool clamp turntable (10), and the knife spring (4) is installed on the tool clamp assembly (12) through bolts. When changing the tool, the knife beating force is applied to the knife spring (4), the knife spring (4) is compressed, and the tool clamp assembly (12) is opened and closed by the knife loosening spring (13); the foot pedal (9) is connected to the turntable position positioning shaft (8) through the pin shaft (15). After the turntable (3) is manually rotated into position, it is accurately positioned by the turntable position positioning shaft (8); The fixed plate (5) is provided with a tool holder tray rotation positioning pin (6). When the tool blade is replaced, the tool holder rotation tray (10) is rotated. After the tool holder rotation tray (10) is rotated into position, it is positioned by the tool holder tray rotation positioning pin (6).

2. A method for replacing a knife of the device according to claim 1, characterized in that: Here are the steps: 1) Tool replacement: Depress the foot pedal (9), the spring (16) is compressed, the rotary disk in place positioning shaft (8) is disengaged from the positioning sleeve (17) on the rotary disk (3), the rotary disk (3) is rotated, the replacement tool (14) is rotated to the tool change position, and the foot pedal (9) is released. At this time, the rotary disk in place positioning shaft (8) is subjected to the tensile force of the spring (16) and is pushed into the positioning sleeve (17) on the rotary disk (3), so that the tool is accurately positioned at the tool change position. The machine tool spindle moves to the tool change position, and the spindle takes the tool (14) from the rotary disk (3). After taking the tool (14), the spindle moves out of the tool change position and proceeds to the next step. The tool replacement is completed; 2) Tool blade replacement: Pull out the tool holder tray rotation positioning pin (6), rotate the tool holder rotation tray (10) to a suitable position to replace the blade. After the blade is replaced, rotate the tool holder rotation tray (10) to the initial position, insert the tool holder tray rotation positioning pin (6), and the tool blade replacement is completed.

Images