CN216463278U - Tool changing mechanism convenient for adjusting length of tool - Google Patents

Abstract

The utility model discloses a tool changing mechanism convenient for adjusting the length of a tool, which comprises a tool gripper and a mounting seat, wherein the tool gripper comprises a movable cylinder and a tool gripper hand, the end head of a movable cylinder rod of the movable cylinder is connected to the mounting seat through a connecting plate, the tool gripper hand is arranged on one side of the movable cylinder, a zero position plate is arranged on the side wall of the tool gripper, a zero position mounting seat is arranged on the mounting seat, the zero position mounting seat extends in the vertical direction, and an upper proximity switch and a lower proximity switch which correspond to the zero position plate are arranged on the zero position mounting seat. After the cutter was grabbed to the tongs of this device, the cylinder upwards promoted the tongs, was in the upstroke, removed main electric spindle tongs, and cutter length does not accord with the back, and electric spindle removes the cutter to tongs department, and the tongs is promptly the cutter, and at this moment electric spindle loosens the back, and the cutter is fixed, so electric spindle can test before according to, reciprocates suitable distance and accomplishes the cutter debugging, and is very convenient.

Description

Tool changing mechanism convenient for adjusting length of tool

Technical Field

The utility model relates to a numerical control milling machine, in particular to a tool changing mechanism convenient for adjusting the length of a tool.

Background

The numerical control milling machine is an automatic processing device developed on the basis of a common milling machine, the processing technology of the numerical control milling machine and the automatic processing device is basically the same, and the structures of the numerical control milling machine and the automatic processing device are also similar. The numerical control milling machine is divided into two types, namely a tool magazine without tool magazine and a tool magazine with tool magazine. Wherein the numerical control milling machine with the tool magazine is also called as a machining center.

The existing numerical control milling machine has the advantages that the cutter is automatically changed, full-automatic processing is realized, a plurality of cutters are arranged in a cutter magazine, all the cutters are placed into an idle cutter hole by an electric spindle, then a new cutter is clamped by the electric spindle, the electric spindle is adopted to automatically clamp the new cutter, and the cutter magazine is too large to occupy too much space of a machine tool due to the fact that the electric spindle is large in size and large in gap in the design of the cutter hole.

Certainly, a tool grabbing device is designed on the edge of the electric spindle, a tool is grabbed into a common tool hole through the tool grabbing device, a large space is formed around the common tool hole, the electric spindle grabs the tool from the common tool hole, the size of the tool magazine is greatly reduced, however, in the mode, the tool changing process is complex, the tool which is being used is placed into the common tool hole through the electric spindle, then the tool grabbing device grabs the tool in the common tool hole and takes out the tool, the tool grabbing device grabs a pre-used tool and places the pre-used tool into the common tool hole, and finally the electric spindle grabs the tool. In addition, when the ring-free cutter is used, the length is tested after the electric spindle grabs the ring-free cutter, but the ring-free cutter is exposed too much, and needs to be debugged again, namely the electric spindle puts the cutter into the common cutter hole again, but the electric spindle cannot drop the cutter to the lowest point and then releases the cutter, because if the cutter drops to the lowest point, the cutter is pressed and bent, so that the electric spindle releases the cutter after the cutter enters the common cutter hole, and at the moment, the electric spindle grabs the cutter equivalently and re-grabs the cutter without any reference, so that the debugging is very troublesome when the electric spindle grabs the cutter.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to address at least the above problems.

The utility model aims to provide a tool changing mechanism convenient for adjusting the length of a cutter, and solves the problem that the existing numerical control milling machine needs to try to grab for many times and wastes time due to the fact that the grabbing length is not correct when grabbing a ring-free cutter.

In order to achieve the objects and other advantages according to the present invention, a tool changing mechanism capable of conveniently adjusting the length of a tool is provided, which includes a tool gripper and a mounting seat, wherein the tool gripper includes a moving cylinder and a tool gripper, a moving cylinder rod of the moving cylinder extends vertically and downwardly, an end of the moving cylinder rod is connected to the mounting seat through a connecting plate, the tool gripper is mounted on one side of the moving cylinder, a zero position plate is disposed on a side wall of the tool gripper, a zero position mounting seat is disposed on the mounting seat, the zero position mounting seat extends vertically, and an upper proximity switch and a lower proximity switch corresponding to the zero position plate are disposed on the zero position mounting seat.

In one possible design, a cutter receiving disc is arranged on the mounting seat on one side close to the cutter grabbing hand.

In a possible design, the mount pad includes installation angle bar and mounting panel, the installation angle bar is the L template, and the top installation connecting plate of its horizontal plate is provided with two lines of waist type holes on the vertical board of installation angle bar, waist type hole is horizontal direction waist type hole, and the vertical board of installation angle bar passes through the screw and is connected with the mounting panel.

In a possible design, a guide groove is formed between two rows of waist-shaped holes in the vertical plate of the installation angle iron, a guide key is arranged at the position, corresponding to the guide groove, of the installation plate, and the guide key is matched with the guide groove in size.

In one possible design, the knife grabbing hand comprises a knife grabbing cylinder, a sliding frame and two knife grabbing hands, each knife grabbing hand comprises a knife head and a knife handle, the knife grabbing hands are symmetrically arranged on two sides of the sliding frame, the knife handles of the knife grabbing hands are inserted into a horizontal sliding way of the sliding frame, the knife head is Z-shaped, one end of each knife head is connected with the knife handle, the other end of each knife head is located right above the sliding frame, the knife handles slide in the horizontal sliding way to drive the knife heads to move, so that the knife heads are attached to or separated from the upper end of the sliding frame, a through channel is arranged on the lower end face of the horizontal sliding way, the width of the through channel is smaller than that of the horizontal sliding way, the lower ends of the two knife handles are respectively connected to a knife grabbing cylinder rod of the knife grabbing cylinder through a connecting piece, one end of the connecting piece is hinged to the knife grabbing cylinder rod, the other end of the knife grabbing cylinder rod of the knife grabbing cylinder is hinged to the knife handle, the knife grabbing cylinder rod of the knife grabbing cylinder rod moves in the vertical direction, and in the moving process of the knife grabbing cylinder rod, driving the knife handle to move horizontally.

The utility model at least comprises the following beneficial effects: the utility model discloses a cutter length, the tool bit is fixed, the electric main shaft is fixed, so the electric main shaft can reciprocate suitable distance according to the tool length of test before, just accomplished the tool debugging, unusual convenience.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic structural view of the apparatus;

FIG. 2 is a schematic exploded view of the apparatus;

FIG. 3 is a schematic structural view of the knife grabber;

FIG. 4 is a cross-sectional view of a grasper hand;

FIG. 5 is a sectional view taken along line A-A in FIG. 4;

reference numbers in the figures: 100-knife grabber, 101-zero plate, 200-mounting seat, 201-zero mounting seat, 202-upper proximity switch, 203-lower proximity switch, 204-mounting angle iron, 205-mounting plate, 206-horizontal plate, 207-vertical plate, 208-guide groove, 209-guide key, 300-moving cylinder, 301-moving cylinder rod, 302-connecting plate, 400-knife grabber, 500-knife grabbing cylinder, 501-knife grabbing cylinder rod, 600-sliding frame, 601-horizontal sliding way, 602-through way, 603-end cover, 604-accommodating space, 700-knife grabber, 701-knife head, 702-knife handle, 703-connecting piece and 800-knife connecting disc.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the utility model. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As fig. 1~4, a conveniently adjust tool changing mechanism of cutter length, including grabbing sword ware 100 and mount pad 200, grab sword ware 100 including moving cylinder 300 and grabbing sword hand 400, the vertical downwardly extending of moving cylinder pole 301 of moving cylinder 300, the end of moving cylinder pole 301 is connected to on the mount pad 200 through connecting plate 302, grab sword hand 400 installs the one side at moving cylinder 300, be provided with zero position board 101 on grabbing sword ware 100's the lateral wall, be provided with zero position mount pad 201 on the mount pad 200, zero position mount pad 21 is vertical direction extension, is provided with last proximity switch 202 and lower proximity switch 203 that corresponds with zero position board 101 on the zero position mount pad 201.

The tool changing mechanism of the device is an independent mechanism, a mounting seat 200 is fixedly arranged in a milling machine, the tool magazine can move horizontally, the tool magazine moves to the position right above a tool grabbing device 100, one tool of the tool magazine is right opposite to the tool grabbing device 100, at the moment, a moving cylinder 300 can drive a tool grabbing hand 400 to move up and down, one end of a zero plate 101 is arranged on the side wall of the moving cylinder 300, the other end of the zero plate extends to the position of a zero-position mounting seat 201, the zero-position mounting seat 201 is a vertical plate, an upper proximity switch 202 and a lower proximity switch 203 are fixed on one side of the zero-position mounting seat, the side walls of the upper proximity switch 202 and the lower proximity switch 203 are arranged on the zero-position mounting seat 201, the upper proximity switch 202 and the lower proximity switch 203 both adopt distance sensors, in the moving process, after the zero plate 101 moves to the upper proximity switch 202, the upper proximity switch 202 senses the zero plate 101, sends a signal to the moving cylinder 300, and the moving cylinder 300 stops moving, at this time, the gripper 400 is displaced upward, i.e., an upward stroke, and the tool is positioned at the gripper 400, and then the gripper 400 starts gripping the tool. When the knife grasping hand 400 is lowered again and the lower proximity switch 203 senses the zero plate 101, the moving cylinder 300 stops moving, and the knife grasping hand 400 is located at the lower part, namely, the lower stroke. When the tool holder 400 is located at the upper stroke, the tool magazine cannot move, so that the tool holder 400 is prevented from colliding with other tools, and when the tool holder is located at the lower stroke, the tool magazine can move randomly.

After the tool magazine is removed, the electric spindle can move right above the tool grabbing hand 400, then the tool grabbing hand 400 moves upwards to the upper stroke again, then the electric spindle can move downwards to the grabbing tool, after grabbing, the tool grabbing hand 400 releases the tool and then moves downwards to the lower stroke, whether the grabbing length of the tool on the electric spindle is proper or not is measured (the tool is right opposite to a non-ring tool, the ring tool is collided by a ring part, and grabbing is successful in sequence basically), when the tool is improper, the tool grabbing hand 400 moves upwards to the upper stroke again, the tool is grabbed, the electric spindle moves upwards or downwards for a proper distance according to the length measurement, and tool grabbing is completed.

The device has the advantages that: firstly, the grabbing length of the cutter is convenient to adjust; secondly, in measurement and adjustment, the electric spindle basically does not move and is moved by the tool grabbing hand 400, so that the power consumption is reduced, the electric spindle is a heavy instrument, further, the use of the electric spindle can be reduced, and the service life of the electric spindle can be slightly prolonged.

As shown in fig. 3 and 4, the design of the device for the gripper 400: the knife grabbing hand 400 comprises a knife grabbing cylinder 500, a sliding frame 600 and two knife grabbing 700, the knife grabbing 700 comprises a knife head 701 and a knife handle 702, the knife grabbing 700 is symmetrically arranged on two sides of the sliding frame 600, the knife handle 702 of the knife grabbing 700 is inserted into a horizontal sliding way 601 of the sliding frame 600, the knife head 701 is Z-shaped, one end of the knife head 701 is connected with the knife handle 702, the other end of the knife head 701 is positioned right above the sliding frame 600, when the knife handle 702 slides in the horizontal sliding way 601, the knife head 701 is driven to move, so that the positions, located at the upper end of the sliding frame 600, of the knife head 701 are attached or separated, a through channel 602 is arranged on the lower end face of the horizontal sliding way 601, the width of the through channel 602 is smaller than that of the horizontal sliding way 601, the lower ends of the two knife handles 702 are respectively connected to the knife grabbing cylinder rod 501 of the knife grabbing cylinder 500 through a connecting piece 703, one end of the connecting piece 703 is hinged to the knife grabbing cylinder rod 501, the other end of the knife handle 702 is hinged to the knife grabbing cylinder rod 501, and the knife grabbing cylinder rod 501 of the knife grabbing cylinder 500 moves in the vertical direction, and in the moving process of the knife grasping cylinder rod 501, the knife handle 702 is driven to move horizontally.

As shown in fig. 3 and 4, the knife catching cylinder 500 and the skid 600 are fixed on the side wall of the moving cylinder 300, the skid 600 is located right above the knife catching cylinder 500, the skid 600 is a square block, the upper end of the skid 600 is designed with a horizontal slideway 601 horizontally penetrating through, the knife handle 702 is matched with the horizontal slideway 601 in size, the knife handle 702 slides in the horizontal slideway 601, the back ends of the two knife handles 702 are respectively connected with a knife head 701, the knife head 701 is Z-shaped and comprises two vertical sections and a horizontal section, the first vertical section is connected with the knife handle 702, the horizontal section is located right above the skid 600, one end of the horizontal section is connected with the first vertical section, the other end of the horizontal section is connected with the second vertical section, so that when the knife handle 702 slides to the inside of the horizontal slideway 601, the second vertical section moves to the center above the skid 600, that the upper end of the knife head 701 moves to the center above the skid 600, when the upper ends of the two knife heads 701 move to the center above the skid 600, the upper ends of the two tool bits 701 just contact, and in this embodiment, the side in opposite directions of the upper ends of the two tool bits 701 is provided with the semicircular groove, and the two tool bits 701 contact to form a circular groove, so that the tool can be conveniently grabbed, which is a common design and is not described in detail for the prior art.

As shown in fig. 4, the sliding of the knife handle 702 is mainly driven by the knife grasping cylinder rod 501 below, when the knife grasping cylinder rod 501 moves upwards, the knife handle 702 is located in the horizontal slideway 601 and can only move horizontally, and both ends of the connecting piece 703 are hinged, so that the upper ends of the two connecting pieces 703 can perform a branching motion, the knife handle 702 is caused to move separately, the knife head 701 is separated, and the knife is released; when the knife grasping cylinder rod 501 moves downwards, the two connecting pieces 703 are closed, so that the knife handles 702 are close, and the knife head 701 can contact and clamp the knife.

As shown in fig. 4 and 5, an end cover 603 is designed at the upper end of the skid 600, and after the end cover 603 is opened, the horizontal slide 601 is exposed, which is convenient for maintenance. And the blade grasping cylinder rod 501 is located in the housing space 604 of the skid 600.

As shown in fig. 1 and 2, a cutter receiving plate 800 is provided on the mounting seat 200 on a side close to the cutter grasping hand 400. When the knife grabbing hand 400 grabs a knife, the phenomenon of unstable knife grabbing may occur, so the knife receiving disc 800 is designed for containing the knife, and the knife is prevented from falling into a gap of a machine tool and being difficult to take out.

As shown in fig. 1 and 2, the mounting seat 200 includes a mounting angle 204 and a mounting plate 205, the mounting angle 204 is an L-shaped plate, a coupling plate 302 is mounted above a horizontal plate 206 of the L-shaped plate, two rows of waist-shaped holes are provided on a vertical plate 207 of the mounting angle 204, the waist-shaped holes are horizontal waist-shaped holes, and the vertical plate 207 of the mounting angle 204 is connected with the mounting plate 205 through screws.

In the mounting seat 200, the mounting angle iron 204 comprises a horizontal plate 206 and a vertical plate 207, the horizontal plate 206 is fixed with a coupling plate 302 through screws, and a zero-position mounting seat 201 is mounted at one end of the horizontal plate 206, which faces away from the vertical plate 207. The cutter receiving disc 800 is installed on one side of the horizontal plate 206, so that the cutter receiving disc 800, the vertical plate 207 and the zero-position installation seat 201 form a baffle with three surrounding surfaces, then the cutter grabbing device 100 is installed on the horizontal plate 206, the installation position of the cutter grabbing hand 400 is close to the cutter receiving disc 800, cutters falling off from the cutter grabbing hand 400 are blocked by four surfaces, and most of the cutters fall onto the cutter receiving disc 800.

The horizontal plate 206 and the vertical plate 207 are installed through the kidney-shaped hole, and the horizontal plate 206 can be adjusted in the horizontal direction.

As shown in fig. 2, a guide groove 208 is formed between two rows of kidney-shaped holes in the vertical plate 207 of the installation angle iron 204, a guide key 209 is arranged at a position of the installation plate 205 corresponding to the guide groove 208, the guide key 209 is matched with the guide groove 208 in size, the guide key 209 is embedded into the guide groove 208, and after screws are loosened, the vertical plate 207 is displaced along the guide key 209, so that the adjustment of the installation angle iron 204 is facilitated.

While embodiments of the utility model have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a conveniently adjust tool changing mechanism of cutter length, its characterized in that, is including grabbing sword ware and mount pad, it includes removal cylinder and grabs the sword hand to grab the sword ware, the vertical downwardly extending of removal jar pole that removes the cylinder, the end that removes the jar pole is connected to on the mount pad through the connecting plate, grab the sword hand and install the one side at the removal cylinder, be provided with the zero position board on grabbing the lateral wall of sword ware, be provided with the zero-position mount pad on the mount pad, the zero-position mount pad is vertical direction extension, is provided with last proximity switch and lower proximity switch that corresponds with the zero position board on the zero-position mount pad.

2. The tool changing mechanism facilitating the adjustment of the length of the tool as claimed in claim 1, wherein a tool receiving disc is provided on the mounting seat on a side close to the tool holder.

3. The tool changing mechanism convenient for adjusting the length of the tool as claimed in claim 1, wherein the mounting seat comprises a mounting angle iron and a mounting plate, the mounting angle iron is an L-shaped plate, a connecting plate is mounted above a horizontal plate of the L-shaped plate, two rows of waist-shaped holes are formed in a vertical plate of the mounting angle iron, the waist-shaped holes are horizontal waist-shaped holes, and the vertical plate of the mounting angle iron is connected with the mounting plate through screws.

4. The tool changing mechanism convenient for adjusting the length of the tool as claimed in claim 3, wherein a guide groove is arranged between two rows of waist-shaped holes on the vertical plate of the mounting angle iron, a guide key is arranged on the mounting plate corresponding to the guide groove, and the guide key is matched with the guide groove in size.

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