Positioning device for mechanical part manufacturing

Abstract

The utility model relates to the technical field of mechanical part machining, and discloses a positioning device for mechanical part manufacturing, which comprises a positioning table, a first sliding hole is formed in the positioning table, supporting blocks are mounted on the left side and the right side of the upper part of the positioning table, and positioning plates are mounted on the opposite sides of the two supporting blocks. A distance adjusting mechanism for adjusting the distance between the two supporting blocks is arranged below the positioning table. A downward pressing mechanism is arranged on the surface of the side, away from the positioning plate, of the supporting block. Through the arrangement of the distance adjusting mechanism, the rocker in the distance adjusting mechanism is rotated to drive the two supporting blocks to be close to each other through the sliding block, so that the positioning plate fixes a mechanical part in the left-right direction; after a supporting bolt is unscrewed, a positioning plate can be pulled out from bottom to top, different positioning plates can be conveniently replaced according to mechanical parts of different shapes, a motor in the downward pressing mechanism drives a gear to rotate, and a rack meshed with the gear drives a pressing plate to fix the mechanical parts in the vertical direction.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical part processing technical field, concretely is a kind of positioning device for mechanical part manufacturing. BACKGROUND

[0002] In the mechanical part processing process, positioning device plays a vital role;Most of the current positioning device's fixture cannot be replaced, and the shape of the part is different during processing, so the fixture cannot firmly clamp some parts, which can easily cause the part to loosen during processing.

[0003] Chinese patent discloses a kind of positioning device for hardware mechanical part processing (authorized announcement No.CN222449323U), the patent technology can be according to the appearance of part selects the clamping seat of curved surface or plane, the dovetail strip and rectangular strip of one side of clamping seat are slidably installed into dovetail groove and rectangular slot respectively, and limit rod is inserted into through hole, limiting positioning effect is played to rectangular strip, avoid clamping seat to move, positioning fixture is easy to disassemble and replace, and ensure the positioning stability of part;

[0004] By rotating the handle of the shaft rod, the driving wheel is engaged with a set of driven wheels, the screw rod is rotated, the sliding seat is moved in the first sliding groove, the positioning fixture on both sides is driven synchronously to approach the part on both sides, and the function of clamping and positioning the part is realized;And it can fix parts of different sizes, expand the scope of application, and improve the practicality of positioning tooling.

[0005] However, it has certain disadvantages: mechanical parts are only fixed in left and right directions to maintain stability, however, this fixing method cannot fully resist the vibration or impact force in the upward and downward directions during processing, which causes the position of the part to deviate, and further affects the processing precision. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of positioning device for mechanical part manufacturing to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of positioning device for mechanical part manufacturing, including positioning table, the inside of positioning table is equipped with first sliding hole, and the upper left and right sides of positioning table are all installed with support block, the front and rear surfaces of two support blocks are all penetrated with support bolt connected with screw thread, and the opposite side of two support blocks is all installed with positioning plate, the side surface close to support block of positioning plate is all uniformly fixed with a plurality of dovetail block, the lower of positioning table is provided with the distance adjusting mechanism of adjusting the distance between two support blocks;

[0009] The lower pressing mechanism is provided with a mounting frame, the front surface of the mounting frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, one side surface in the interior of the mounting frame is slidably connected with a rack, and the upper end of the rack is provided with a lower pressing piece.

[0010] As a further scheme of the utility model: the distance adjusting mechanism includes a connecting rod, the left and right ends of the connecting rod are fixedly connected with connecting blocks, and the interiors of the two connecting blocks are rotatably connected with a rocker below the connecting rod.

[0011] As a further scheme of the utility model: the lower pressing piece includes a pressing plate, the interior of the pressing plate is provided with a second sliding hole, the interior of the second sliding hole is movably connected with a mounting block, the upper end of the mounting block is fixedly connected with a mounting plate, and the lower surface of the mounting plate is embedded with rolling balls in rolling connection on the left and right sides of the mounting block.

[0012] As a further scheme of the utility model: the dovetail block is movably arranged in the interior of the supporting block, one end of the supporting bolt is attached to the dovetail block, the mounting frame is fixedly connected to the side surface of the supporting block away from the positioning plate, and the gear is meshingly connected to the rack.

[0013] As a further scheme of the utility model: the upper end of the connecting block is fixedly connected to the lower surface of the positioning table, the connecting rod is movably penetrated through the sliding block, the sliding block is movably arranged in the interior of the first sliding hole, and the upper end of the sliding block is fixedly connected to the lower end of the supporting block.

[0014] As a further scheme of the utility model: the rack is movably attached to the pressing plate, the upper end of the rack is fixedly connected to the lower end of the mounting block, and the rolling balls are attached to the upper surface of the pressing plate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The utility model discloses a distance adjusting mechanism is arranged, and the rocker in the distance adjusting mechanism is rotated and can drive two supporting blocks to be close to through the sliding block, so that the positioning plate is fixed to the mechanical part in the left and right directions;After unscrewing the supporting bolt, the positioning plate can be pulled out from below to above, and different positioning plates can be replaced according to different shapes of mechanical parts.

[0017] 2、The utility model discloses a lower pressing mechanism, and the motor in the lower pressing mechanism drives the gear to rotate, so that the rack meshing with the gear drives the pressing plate to be fixed to the mechanical part in the up and down directions;The pressing plate can move left and right, avoiding interference when replacing the positioning plate. DRAWINGS

[0018] Figure 1A structure diagram of a positioning device for a mechanical part;

[0019] Figure 2 A structure diagram of a distance adjusting mechanism in a positioning device for a mechanical part;

[0020] Figure 3 A structure diagram of a pressing mechanism in a positioning device for a mechanical part;

[0021] Figure 4 A structure diagram of a pressing piece in a positioning device for a mechanical part.

[0022] In the figure: 1, positioning table; 2, first sliding hole; 3, support block; 4, positioning plate; 5, dovetail block; 6, distance adjusting mechanism; 7, connecting rod; 8, connecting block; 9, rocker; 10, sliding block; 11, pressing mechanism; 12, mounting frame; 13, motor; 14, gear; 15, rack; 16, pressing piece; 17, pressing plate; 18, second sliding hole; 19, mounting block; 20, mounting plate; 21, ball; 22, support bolt. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 and Figure 2 In the embodiment of the utility model, a positioning device for a mechanical part, including positioning table 1, the inside of positioning table 1 is equipped with first sliding hole 2, and the upper left and right sides of positioning table 1 are both equipped with support block 3, the front and back two sides surfaces of two support blocks 3 are both penetrated with support bolt 22, and the opposite sides of two support blocks 3 are both equipped with positioning plate 4, the side surface close to support block 3 of positioning plate 4 is evenly fixed with multiple dovetail blocks 5, and dovetail block 5 is movably located in the inside of support block 3, one end of support bolt 22 is attached to dovetail block 5, the lower part of positioning table 1 is provided with distance adjusting mechanism 6 for adjusting the distance between two support blocks 3, and distance adjusting mechanism 6 includes connecting rod 7, the left and right ends of connecting rod 7 are both fixed with connecting block 8, the upper end of connecting block 8 is fixed on the lower surface of positioning table 1, the inside of two connecting blocks 8 is rotatably connected with rocker 9 below connecting rod 7, the outside of rocker 9 is threadedly connected with two sliding blocks 10 between two connecting blocks 8, connecting rod 7 movably penetrates sliding block 10, and the upper end of sliding block 10 is fixed to the lower end of support block 3;

[0024] The distance between two sliding blocks 10 is opposite, so rotating rocker 9 can drive two sliding blocks 10 to move oppositely or away from each other, thereby driving two support blocks 3 to move oppositely or away from each other;

[0025] Two positioning plates 4 are used for positioning the mechanical part in the left and right directions;

[0026] After unscrewing the supporting bolt 22 so that it no longer abuts against the dovetail block 5, the positioning plate 4 can be pulled out from bottom to top, facilitating the disassembly and replacement of the positioning plate 4, thereby facilitating the fixation of mechanical parts of different shapes.

[0027] In Figure 1 , Figure 3 and Figure 4 : the side surface of the supporting block 3 away from the positioning plate 4 is provided with a pressing mechanism 11, the pressing mechanism 11 comprises a mounting frame 12, the mounting frame 12 is fixedly connected to the side surface of the supporting block 3 away from the positioning plate 4, the front surface of the mounting frame 12 is fixedly connected with a motor 13, the output end of the motor 13 is fixedly connected with a gear 14, one side surface of the inside of the mounting frame 12 is slidingly connected with a rack 15, the gear 14 is meshingly connected to the rack 15, the upper end of the rack 15 is provided with a pressing piece 16, the pressing piece 16 comprises a pressing plate 17, the rack 15 is movably attached to the pressing plate 17, the inside of the pressing plate 17 is provided with a second sliding hole 18, the inside of the second sliding hole 18 is movably connected with a mounting block 19, the upper end of the mounting block 19 is fixedly connected to the lower end of the mounting block 19, the upper end of the mounting block 19 is fixedly connected with a mounting plate 20, the lower surface of the mounting plate 20 is embedded with a plurality of rolling balls 21 on the front and rear sides of the mounting block 19, the rolling balls 21 are attached to the upper surface of the pressing plate 17;

[0028] The motor 13 is provided with a brake, that is, after power-off, the motor shaft cannot rotate; the motor 13 is connected to a forward and reverse circuit;

[0029] The rotation of the gear 14 can drive the rack 15 to ascend and descend, and the descent of the rack 15 can drive the pressing plate 17 to descend, thereby positioning the mechanical part in the up-down direction;

[0030] The pressing plate 17 can move left and right outside the mounting block 19, and will not cause obstruction when the positioning plate 4 needs to be disassembled;

[0031] The rolling balls 21 make the pressing plate 17 move left and right more smoothly.

[0032] The working principle of the utility model is as follows: in use, the mechanical part is placed on the positioning table 1, the rocker 9 is rotated to drive the two sliding blocks 10 to approach, thereby the two positioning plates 4 are driven by the supporting block 3 to fix the mechanical part; then, the motor 13 drives the gear 14 to rotate, the rack 15 drives the pressing plate 17 to descend to fix the mechanical part; when the positioning plate 4 needs to be replaced, the supporting bolt 22 is unscrewed, the pressing plate 17 is moved so that it is no longer perpendicular to the positioning plate 4, and then the positioning plate 4 is removed from bottom to top.

[0033] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0034] In the description of the present application, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A positioning device for manufacturing mechanical parts, comprising a positioning table (1), a first sliding hole (2) is formed in the inside of the positioning table (1), support blocks (3) are installed on the upper left and right sides of the positioning table (1), support bolts (22) are threadedly connected through the front and back side surfaces of the two support blocks (3), positioning plates (4) are installed on the opposite sides of the two support blocks (3), a plurality of dovetail blocks (5) are uniformly fixed on the side surface of the positioning plate (4) close to the support block (3), and an interval adjusting mechanism (6) for adjusting the interval between the two support blocks (3) is arranged below the positioning table (1). characterized in that A pressing mechanism (11) is arranged on the side surface of the support block (3) away from the positioning plate (4), the pressing mechanism (11) comprises a mounting frame (12), a motor (13) is fixed on the front surface of the mounting frame (12), a gear (14) is fixed on the output end of the motor (13), a rack (15) is slidingly connected to the inside side surface of the mounting frame (12), and a pressing piece (16) is arranged on the upper end of the rack (15).

2. A positioning device for use in the manufacture of mechanical parts according to claim 1, characterized in that The interval adjusting mechanism (6) comprises a connecting rod (7), connecting blocks (8) are fixed on the left and right ends of the connecting rod (7), a rocker (9) is rotatably connected to the inside of the two connecting blocks (8) below the connecting rod (7), and two sliding blocks (10) are threadedly connected to the outside of the rocker (9) between the two connecting blocks (8).

3. A positioning device for use in the manufacture of mechanical parts according to claim 1, characterized in that The pressing piece (16) comprises a pressing plate (17), a second sliding hole (18) is formed in the inside of the pressing plate (17), an installation block (19) is movably connected in the inside of the second sliding hole (18), an installation plate (20) is fixed on the upper end of the installation block (19), and ball bearings (21) are embedded and rollingly connected on the lower surface of the installation plate (20) on the front and back sides of the installation block (19).

4. A positioning device for use in the manufacture of mechanical parts according to claim 1, characterized in that The dovetail block (5) is movably arranged in the inside of the support block (3), one end of the support bolt (22) is attached to the dovetail block (5), the mounting frame (12) is fixed on the side surface of the support block (3) away from the positioning plate (4), and the gear (14) is meshingly connected to the rack (15).

5. A positioning device for use in the manufacture of mechanical parts according to claim 2, characterized in that The upper end of the connecting block (8) is fixed on the lower surface of the positioning table (1), the connecting rod (7) movably penetrates the sliding block (10), the sliding block (10) is movably arranged in the inside of the first sliding hole (2), and the upper end of the sliding block (10) is fixed on the lower end of the support block (3).

6. A positioning device for use in the manufacture of mechanical parts according to claim 3, characterized in that The rack (15) movably abuts against the pressing plate (17), the upper end of the rack (15) is fixed on the lower end of the installation block (19), and the ball bearings (21) abut against the upper surface of the pressing plate (17).

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