Zero-point locking device in horizontal bar type machine

Abstract

The utility model provides a zero-point locking device in a horizontal bar type machine, which comprises a locking device arranged on a single-cylinder machine tool, and the locking device is fixed on a working platform arranged on the single-cylinder machine tool through a screw; the locking device is provided with a zero-point tray connected with the working platform, the zero-point tray is provided with a plurality of piston cavities, the front side of the zero-point tray is provided with a control device which is communicated with an air channel and can control the air channel to be connected or disconnected, pistons are arranged in the piston cavities, and the air channel blows air into the piston cavities through the air holes so as to drive the pistons to move up and down in the piston cavities; a fixed plate which is connected with a piston and can be driven by the piston to move up and down is arranged above the zero-point tray; a tray carrying plate capable of being positioned and connected is arranged on the fixed plate, is connected with the fixed plate and moves up and down along with the fixed plate; and a limiting plate for limiting the tray carrying plate is arranged on the rear side of the zero-point tray. When the tray carrying plate is pushed into the machine tool, positioning can be rapidly completed, locking can be achieved through a control device, and complex operation or zero point re-debugging is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine tool equipment technical field more particularly is a single pole type machine zero point locking device. BACKGROUND

[0002] In the modern processing manufacturing field, numerical control machine tool is one of commonly used equipment, especially single cylinder machine tool is widely applied because of simple structure, low cost. However, when single cylinder machine tool processes workpieces of different specifications or types, it is usually necessary to replace the fixture. During the traditional fixture replacement process, the fixture is heavy and bulky, and it is inconvenient to operate when replacing, and the zero point position needs to be re-adjusted after each fixture replacement. This not only increases the auxiliary workload, but also causes a long downtime, significantly reducing the processing efficiency. In addition, due to the limited internal space of the single cylinder machine tool, manual loading operation is difficult for heavy workpieces, further reducing the operation efficiency and accuracy. Therefore, how to solve the problems of difficult fixture replacement, complex zero point adjustment and inconvenient workpiece loading has become an important direction to improve the working efficiency and processing quality of single cylinder machine tool. SUMMARY

[0003] Therefore, the utility model provides a single pole type machine zero point locking device.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A single pole type machine zero point locking device, comprising a locking device mounted on a single cylinder machine tool, the locking device being fixed on a workbench provided on the single cylinder machine tool by screws; the locking device is provided with a zero point tray connected to the workbench, a plurality of piston cavities are provided on the zero point tray, a gas hole communicating with the gas path is provided in the piston cavity, a control device communicating with the gas path and capable of controlling the gas path to be ventilated or cut off is provided on the front side of the zero point tray, a piston is provided in the piston cavity, and the gas path blows gas into the piston cavity through the gas hole to drive the piston to move up and down in the piston cavity; a fixed plate connected to the piston and capable of being driven by the piston to move up and down is provided above the zero point tray; a tray carrier plate capable of being positioned and connected is provided on the fixed plate, the tray carrier plate is connected to the fixed plate and moves up and down with it; a limiting plate limiting the tray carrier plate is provided on the rear side of the zero point tray.

[0006] In the preferred technical scheme, the control device is connected to the zero point tray through the gas path, the control device is provided with a gas inlet connected to an external gas source and a handle for controlling the connection between the external gas source and the gas path to be ventilated or cut off.

[0007] In the preferred technical scheme, two limiting blocks are symmetrically provided on the bottom of the tray carrier plate, a space for embedding the fixed plate is formed between the two limiting blocks, and the tray carrier plate is longitudinally limited by the limiting blocks and the fixed plate.

[0008] In the preferred technical scheme, the limiting block is provided with at least one downward protruding positioning sleeve, the zero point tray is provided with a positioning column matched with the positioning sleeve, and the tray carrier plate is positioned and connected with the zero point tray through the cooperation of the positioning sleeve and the positioning column.

[0009] In the preferred technical scheme, the two sides of the fixed plate are provided with first limiting parts in inverted step structure, and the side close to the first limiting part of the limiting block is provided with a second limiting part matched with the first limiting part.

[0010] In the preferred technical scheme, the fixed plate is provided with a plurality of rollers, the rollers are embeddedly installed in the groove provided on the fixed plate, and the top surface of the roller protrudes above the upper surface of the fixed plate.

[0011] In the preferred technical scheme, the side faces of the two limiting blocks away from each other are provided with protective plates, and the protective plates shield the gap between the limiting block and the zero point tray.

[0012] According to the above technical scheme, compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The device can quickly complete positioning and locking through the control device when the tray carrier plate is pushed into the machine tool, without complex operation or re-adjustment of the zero point, greatly shortening the time required for clamp replacement and improving the operation efficiency. The zero point tray ensures the accurate positioning between the tray carrier plate and the work platform through the fixed plate and the limiting structure, avoids frequent adjustment of the zero point position, reduces downtime, and improves equipment utilization. The roller structure provided on the fixed plate enables the tray carrier plate to complete feeding and material taking through sliding, reducing the labor intensity of the operating personnel, especially for heavy workpieces, significantly improving the convenience and safety of feeding. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only embodiments of the utility model, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0015] Figure 1 The exploded structure of the utility model Figure 1 .

[0016] Figure 2 The three-dimensional structure of the utility model Figure 1 .

[0017] Figure 3 It is a schematic view of position relation of single-cylinder machine tool and locking device.

[0018] Figure 4 It is a schematic view of three-dimensional structure of the utility model Figure 2 .

[0019] Figure 5 It is a schematic view of exploded structure of the utility model Figure 2 .

[0020] The drawing number: 100, single-cylinder machine tool;200, locking device;110, work platform;210, zero point tray;211, piston cavity;212, air hole;213, control device;214, piston;220, fixed plate;230, tray carrier plate;215, limiting plate;2131, air inlet;2132, handle;231, limiting block;232, positioning sleeve;216, positioning column;221, first limiting part;2231, second limiting part;222, roller;233, protective plate. DETAILED DESCRIPTION

[0021] The application will now be described further to details with reference to the drawings. These drawings are all simplified schematic views, and only schematically show the basic structure of the application, and thus only show the components related to the application.

[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] A single-cylinder machine type inner zero point locking device;Please refer to Figures 1-5, including the locking device 200 installed on the single-cylinder machine tool 100, the specific model of the single-cylinder machine tool 100 is not limited, the single-cylinder machine tool 100 is formed with a feeding opening, and the working platform 110 is arranged in the opening. Under normal circumstances, the single-cylinder machine tool 100 is also provided with a main shaft for machining products on the working platform 110, but the main shaft is omitted and not shown in the drawing. The locking device 200 is fixed on the working platform 110 by screws to keep the machining zero point unchanged. When machining different specifications / types of products, the structure of the clamp used on the working platform 110 should be different. When machining different products, the clamp of a single-cylinder machine tool should be replaced. The clamp is heavy, bulky and inconvenient to replace. After replacing the clamp, the zero point needs to be re-aligned, and a lot of auxiliary work needs to be done, resulting in a lot of downtime and reducing the work efficiency. In addition, when machining different products, manual feeding is not convenient due to the heavy weight of the products. However, the internal space of the single-cylinder machine tool 100 is limited, and it is difficult to replace the workpiece. In order to facilitate feeding and positioning and locking of the workpiece, the following scheme is proposed:

[0025] The locking device 200 is provided with a zero point tray 210 connected to the working platform 110, the zero point tray 210 is fixed on the working platform 110 and cannot move, ensuring accurate position; the single lever machine tool 100 is signal connected with the locking device 200, so as to facilitate the cooperative operation between the equipment. The zero point tray 210 is provided with a plurality of piston cavities 211, the piston cavities 211 are provided with air holes 212 connected with the air path, the front side of the zero point tray 210 is provided with a control device 213 connected with the air path and capable of controlling the air path to be ventilated or disconnected, the piston cavities 211 are provided with pistons 214, the air path blows air into the piston cavities 211 through the air holes 211 to drive the pistons 214 to move up and down in the piston cavities 211, the zero point tray 210 is provided above with a fixed plate 220 connected with the pistons 214 and capable of being driven by the pistons 214 to move up and down, the fixed plate 220 is provided with a tray carrier plate 230 capable of being positioned and connected, the tray carrier plate 230 is connected with the fixed plate 220 and moves up and down with it. The working platform 110 is mainly used for carrying the zero point tray 210, the working platform 110 is a plate structure, the piston cavities 211 are opened from the upper surface of the zero point tray 210, but do not penetrate the zero point tray 230, the pistons 214 are movably installed in the piston cavities 211, the pistons 214 are connected with the fixed plate 220 and push it to move up and down, the pistons 214 and the fixed plate 220 are locked by a pin, the pistons 214 are pneumatic pistons, and the structure is prior art and will not be described in detail. The tray carrier plate 230 can be pushed and pulled into the single lever machine tool 100 and connected with the locking device 200, the tray carrier plate 230 is used for carrying workpieces, generally a clamp corresponding to the workpiece is arranged on the tray carrier plate 230, the workpiece is fixed on the tray carrier plate 230 and then enters the single lever machine tool 100 as a whole, and is processed after being locked and fixed by the locking device; the rear side of the zero point tray 210 is provided with a limiting plate 215 limiting the tray carrier plate 230, the tray carrier plate 230 can be pushed into the fixed plate 220 and stopped by the limiting of the limiting plate 215, at this time, the position can be connected and locked by the locking device 200, since the tray carrier plate 230 is pushed into the single lever machine tool 100 to be connected with the zero point tray 210 to complete positioning and locking, complex operation or re-adjustment whether it is at zero point is not needed, and the feeding efficiency is improved.

[0026] Further, the control device 213 is connected to the zero tray 210 through the air connection, the control device 213 is provided with an air inlet 2131 connected to an external air source and a handle 2132 for controlling the opening and closing of the air connection between the external air source and the air connection, when the handle 2132 is pulled outward, the air connection is opened, the piston 214 rises by taking air through the air connection and the air hole 212, when the handle 2132 is pushed inward, the air connection is closed, the piston 214 is pressed downward, and the operator can conveniently lock or unlock the tray carrier plate 230 by controlling the control device 213. The bottom of the tray carrier plate 230 is provided with two symmetrical limiting blocks 231, and a space for embedding the fixed plate 220 is formed between the two limiting blocks 231, and the tray carrier plate 230 is longitudinally limited by the limiting blocks 231 and the fixed plate 220. The fixed plate 220 is provided with a first limiting part 221 in the form of a guide step structure on both sides, and the side of the limiting block 231 close to the first limiting part 221 is provided with a second limiting part 2311 matched with the first limiting part 221, when the tray carrier plate 230 is pushed into the locking device 200, the fixed plate 220 is embedded in the inner side of the two limiting blocks 231, the first limiting part 221 of the fixed plate 220 and the second limiting part 2311 in the form of a step structure form a clamping position, so that the tray carrier plate 230 cannot move longitudinally on the fixed plate 220, and when the fixed plate 220 moves up and down by the driving of the piston 214, the tray carrier plate 230 will be driven to move up and down.

[0027] Further, the limiting block 231 is provided with at least one downward protruding positioning sleeve 232, and the zero tray 210 is provided with a positioning column 216 matched with the positioning sleeve 232, and the tray carrier plate 230 is positioned and connected with the zero tray 210 through the cooperation of the positioning sleeve 232 and the positioning column 216; a groove matched with the positioning column 216 is formed in the bottom of the positioning sleeve 232, and when the tray carrier plate 230 moves downward, the positioning column 216 can be embedded in the positioning sleeve 232 to complete the positioning of the tray carrier plate 230; when the tray carrier plate 230 is pushed in, it is stopped by the limiting of the limiting plate 215, at this time the positioning sleeve 232 is just aligned with the positioning column 216, which is convenient for positioning; then the piston 214 moves downward together with the fixed plate 220, the positioning column 126 is embedded in the positioning sleeve 232 until the top end of the positioning column 126 contacts the top surface inside the positioning sleeve 232, the fixed plate 220 keeps the force of pressing downward and presses the tray carrier plate 230 downward through the first limiting part 221, so that the tray carrier plate 230 is locked on the fixed plate 220, the positioning and locking are completed, and the workpiece can start processing, after the workpiece is processed, the fixed plate 220 rises, the tray carrier plate 230 is unlocked, and the positioning sleeve 232 is separated from the positioning column 216, so that the tray carrier plate 230 can be pulled out for reloading.

[0028] Further, the fixing plate 220 is provided with a plurality of rollers 222, the rollers 222 are embeddedly installed in the groove provided on the fixing plate 220, the top of the roller 222 protrudes from the upper surface of the fixing plate 220, when the tray carrier plate 230 is pushed into the single-cylinder machine tool 100, the bottom surface of the tray carrier plate 230 can contact the roller 222, so that the tray carrier plate 230 can slide into, and the tray carrier plate 230 can be conveniently positioned and locked, on the contrary, the tray carrier plate 230 can be taken out by rolling through the roller 222, and the labor of the operator is saved. The opposite sides of the two limiting blocks 231 are provided with protective plates 233, the protective plates 233 shield the gap between the limiting blocks 231 and the zero tray 210, during the machining process, because of the shielding of the protective plates 233, iron filings, waste residues and the like cannot enter the inside of the locking device 200, and the operation of the locking device 200 is prevented from being affected.

[0029] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single column type in-machine zero-point locking device comprising a locking device (200) mounted on a single column machine tool (100), characterized in that: The locking device (200) is fixed on the work platform (110) of the single-cylinder machine tool (100) by screws; the locking device (200) is provided with a zero tray (210) connected to the work platform (110), a plurality of piston cavities (211) are arranged on the zero tray (210), a gas hole (212) communicating with the gas channel is arranged in the piston cavity (211), a control device (213) communicating with the gas channel and capable of controlling the gas channel to be in communication or cut off is arranged on the front side of the zero tray (210), a piston (214) is arranged in the piston cavity (211), the gas channel blows gas into the piston cavity (211) through the gas hole (212) to drive the piston (214) to move up and down in the piston cavity (211); a fixed plate (220) connected to the piston (214) and capable of being driven by the piston (214) to move up and down is arranged above the zero tray (210); a tray carrier plate (230) capable of being positioned and connected is arranged on the fixed plate (220), the tray carrier plate (230) is connected to the fixed plate (220) and moves up and down with the fixed plate (220); a limiting plate (215) limiting the tray carrier plate (230) is arranged on the rear side of the zero tray (210).

2. A single bar type in-machine zero-point locking device according to claim 1, characterized in that: The control device (213) is connected to the zero tray (210) through the gas channel, the control device (213) is provided with an air inlet (2131) connected to an external air source and a handle (2132) capable of controlling the external air source and the gas channel to be in communication or cut off.

3. A single bar type in-machine zero-point locking device according to claim 2, characterized in that: The tray carrier plate (230) is provided with two limiting blocks (231) symmetrically arranged on the bottom of the tray carrier plate (230), a space for embedding the fixed plate (220) is formed between the two limiting blocks (231), and the tray carrier plate (230) is longitudinally limited by the limiting blocks (231) and the fixed plate (220).

4. A single bar type in-machine zero-point locking device according to claim 3, characterized in that: The limiting block (231) is provided with at least one downwardly protruding positioning sleeve (232), the zero tray (210) is provided with a positioning column (216) matched with the positioning sleeve (232), and the tray carrier plate (230) is positioned and connected to the zero tray (210) through the cooperation of the positioning sleeve (232) and the positioning column (216).

5. A single bar type in-machine zero-point locking device according to claim 4, characterized in that: The fixed plate (220) is provided with a first limiting portion (221) in the shape of an inverted step on both sides, and the limiting block (231) is provided with a second limiting portion (2311) matched with the first limiting portion (221) on one side close to the first limiting portion (221).

6. A single bar type in-machine zero-point locking device according to claim 5, characterized in that: A plurality of rollers (222) are arranged on the fixed plate (220), the rollers (222) are embeddedly installed in grooves arranged on the fixed plate (220), and the top surfaces of the rollers (222) protrude from the upper surface of the fixed plate (220).

7. A single bar type in-machine zero-point locking device according to claim 6, characterized in that: The side surfaces of the two limiting blocks (231) facing away from each other are provided with protective plates (233), and the protective plates (233) shield the gap between the limiting blocks (231) and the zero tray (210).

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