Positioning device for machining

Abstract

The utility model discloses a positioning device for machining, which comprises a base and a movable plate arranged above the base, and the movable plate is arranged on the base in a left-right sliding manner through a linear guide rail; a spring bolt mechanism is arranged between the base and the movable plate, and the movable plate can slide leftwards on the base to be limited through the spring bolt mechanism. And a positioning mechanism is arranged on the movable plate, and a workpiece is positioned through the positioning mechanism. According to the utility model, the deviation degree of a workpiece is accurately adjusted, and repeated measurement, adjustment and verification caused by inaccurate knocking force and position control during knocking alignment are effectively overcome, so that the processing efficiency is effectively improved, and the dependence on the experience and skill level of operators is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, and more specifically, relates to a positioning device for machining. Background Technology

[0002] In workpiece machining, precise workpiece positioning is one of the key factors in ensuring machining quality. Currently, in the workpiece machining process, a magnetic disk is often used to fix the workpiece. During fixation, to ensure precise workpiece positioning, traditional methods such as... Figure 1 As shown in the diagram (where A represents the workpiece, B represents the disk, and C represents the dial indicator), the workpiece is first placed on the disk, and then the dial indicator is connected to the machine tool spindle. The spindle then drives the dial indicator to move back and forth along the front face of the workpiece to detect the workpiece deviation. When a deviation occurs, the workpiece is adjusted by striking it with a hammer. This hammering adjustment method not only relies heavily on the operator's experience and skill level, but also requires repeated measurement, adjustment, and verification. This process is time-consuming and labor-intensive, greatly reducing processing efficiency. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model aims to provide a positioning device for machining, so as to reduce the dependence on the experience and skill level of the operator while improving the machining efficiency.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] A positioning device for machining includes a base and a movable plate disposed above the base. The movable plate is slidably disposed on the base by means of a linear guide rail. A locking tongue mechanism is disposed between the base and the movable plate, which can limit the movable plate to slide to the left on the base. A positioning mechanism is disposed on the movable plate, which can be used to position the workpiece.

[0006] Furthermore, each end of the linear guide rail is provided with a limiting mechanism for limiting the maximum sliding position of the slide table to which it belongs.

[0007] Furthermore, the limiting mechanism includes a limiting block and a support base, wherein the limiting block is locked onto the support base by a corresponding locking bolt.

[0008] Furthermore, the latch mechanism consists of a latch assembly and a locking block adapted to the latch assembly.

[0009] Further, the lock tongue assembly comprises a connecting seat, a lock tongue and a pull rod are arranged in the connecting seat, the lower end of the pull rod is threadedly connected with the upper end of the lock tongue, the lock tongue can be driven to slide upward in the connecting seat by pulling the pull rod, a spring is arranged on the pull rod in the connecting seat, the spring has a tendency to drive the lock tongue to slide downward in the connecting seat under the action of no external force, and a nut is arranged on the pull rod outside the connecting seat, and the nut is used for limiting the maximum sliding position of the lock tongue.

[0010] Further, the right side wall and the lower end face of the lower end of the lock tongue are connected and a bevel is formed; a plurality of connecting grooves, in which the lower end of the lock tongue is inserted, are formed on the lock block, and the cross section of the connecting groove is in the shape of a right triangle.

[0011] Further, the connecting grooves are uniformly formed along the front and back sliding direction of the movable plate.

[0012] Further, the upper end of the pull rod is provided with a horizontal rod.

[0013] Further, the positioning mechanism comprises a positioning plate, a tension spring and a fine adjustment module, one end of the positioning plate is hingedly connected with the movable plate, the tension spring is connected between the positioning plate and the movable plate, and the tension spring drives the positioning plate to abut against the end face of the movable plate under the action of no external force, and the fine adjustment module is located at the other end of the positioning plate and is fixed on the movable plate.

[0014] The beneficial effects of the utility model are as follows: the utility model realizes accurate adjustment of the deviation degree of a workpiece, effectively overcomes repeated measurement, adjustment and verification caused by inaccurate knocking force and position control in knocking adjustment, thereby effectively improving the processing efficiency and reducing the dependence on the experience and skill level of an operator.

[0015] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in combination with the drawings. The specific implementation of the utility model is described in detail by the following embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the utility model, constitute a part of the application, and the schematic embodiments of the utility model and the description are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0017] Figure 1 It is a workpiece detection schematic diagram of the utility model;

[0018] Figure 2 It is the overall structure schematic view of the device of the utility model;

[0019] Figure 3 It is the overhead view of the device of the utility model;

[0020] Figure 4 It is the cut view of the lock tongue mechanism using state of the utility model;

[0021] Figure 5 It is the structure schematic view of the lock tongue mechanism of the utility model;

[0022] Figure 6 It is the structure schematic view of the device positioning state of the utility model;

[0023] Figure 7 It is the device positioning complete back state schematic view of the utility model;

[0024] Figure 8 It is the first kind of deviation state schematic view of the workpiece of the utility model;

[0025] Figure 9 It is the second kind of deviation state schematic view of the workpiece of the utility model.

[0026] Mark explanation in the drawing: 1, base; 2, movable plate; 3, straight line guide rail; 4, lock tongue mechanism; 5, positioning mechanism; 6, limiting mechanism; 41, lock tongue assembly; 42, lock block; 51, positioning plate; 52, tension spring; 53, fine adjustment module; 61, limiting block; 62, support seat; 411, connecting seat; 412, lock tongue; 413, pull rod; 414, spring; 415, nut; 416, cross bar; 421, connecting groove; 4121, bevel angle. DETAILED DESCRIPTION

[0027] The utility model will be described in detail below in combination with the embodiment and with reference to the drawings.

[0028] It needs to be explained that all directionality indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the embodiment of the utility model are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (such as shown in the drawings), if the specific posture changes, then the directionality indications also change accordingly.

[0029] Reference is made to Figure 2As shown, a positioning device for machining includes a base 1 and a movable plate 2 arranged above the base 1, the movable plate 2 is slidably arranged on the base 1 through a linear guide rail 3; a lock tongue mechanism 4 is arranged between the base 1 and the movable plate 2, through the lock tongue mechanism 4, the movable plate 2 can be limited to slide left on the base 1; a positioning mechanism 5 is arranged on the movable plate 2, through the positioning mechanism 5, the workpiece can be positioned.

[0030] Further, referring to Figure 3 As shown, in this embodiment, both ends of the linear guide rail 3 are respectively provided with a limiting mechanism 6, the limiting mechanism 6 includes a limiting block 61 and a support seat 62, the limiting block 61 is locked on the support seat 62 through corresponding locking bolts; when installed, the limiting block 61 is fixed on the base 1 through the support seat 62; when used, through the limiting block 61, the maximum position of the slide table to which the linear guide rail 3 belongs is limited, so that the slide table to which the linear guide rail 3 belongs is prevented from sliding out of the guide rail, and the movable plate 2 and the components arranged thereon are prevented from sliding off the linear guide rail 3, thereby causing damage.

[0031] Further, referring to Figure 4 As shown, in this embodiment, the lock tongue mechanism 4 is composed of a lock tongue assembly 41 and a lock block 42 matched with the lock tongue assembly 41; when installed, the lock tongue assembly 41 is arranged on the movable plate 2, and the lock block 42 is fixed on the base 1; when used, through the cooperation of the lock tongue assembly 41 and the lock block 42, the movable plate 2 is limited to slide left on the base 1.

[0032] Further, referring to Figure 5 As shown, the lock tongue assembly 41 includes a connecting seat 411, the connecting seat 411 is fixed on the movable plate 2; a lock tongue 412 and a pull rod 413 are arranged in the connecting seat 411, the lower end of the pull rod 413 is threadedly connected with the upper end of the lock tongue 412, and through pulling the pull rod 413, the lock tongue 412 can be driven to slide in the connecting seat 411; a spring 414 is sleeved on the pull rod 413 arranged in the connecting seat 411, under the action of no external force, the spring 414 has a tendency to drive the lock tongue 412 to slide downward in the connecting seat 411; and a nut 415 is arranged on the pull rod 413 outside the connecting seat 411, through the nut 415, the maximum sliding position of the lock tongue 412 downward is limited.

[0033] Further, referring to Figures 4-5As shown, the right side wall of the lower end of the lock tongue 412 and the lower end surface are connected with an inclined angle 4121; seven groups of connecting grooves 421 are formed on the lock block 42, which can be inserted into the lower end of the lock tongue 412, the cross section of the connecting groove 421 is a right triangle, when the lower end of the lock tongue 412 is inserted into the connecting groove 421, the connecting groove 421 should meet, the inclined angle of the connecting groove 421 is opposite to the inclined angle 4121 of the lock tongue 412, and the vertical right angle of the connecting groove 421 is opposite to the left side of the lock tongue 412; it should be noted that when setting, it is not limited to setting seven groups of connecting grooves 421, and more or less can be set, which can be set according to actual setting, the connecting grooves 421 are evenly formed along the front and rear sliding direction of the movable plate 2.

[0034] Further, referring to Figure 5 As shown, the upper end of the lifting rod 413 is provided with a horizontal rod 416, and the horizontal rod 416 is convenient for lifting the lifting rod 413.

[0035] Further, referring to Figure 3 As shown, in this embodiment, the positioning mechanism 5 includes a positioning plate 51, a tension spring 52 and a fine adjustment module 53; one end of the positioning plate 51 is hinged to the movable plate 2; the tension spring 52 is connected between the positioning plate 51 and the movable plate 2, and under the action of no external force, the tension spring 52 pulls the positioning plate 51 to be attached to the end surface of the movable plate 2; the fine adjustment module 53 is located at the other end of the positioning plate 51 and is fixed on the movable plate 2; and in this embodiment, the fine adjustment module 53 adopts a screw micrometer; here, it should be noted that in this embodiment, the attached end surface of the positioning plate 51 and the movable plate 2 is an inclined surface, therefore, referring to Figure 3 As shown, in the natural state, the positioning plate 51 is inclined to the inside of the movable plate 2.

[0036] The working principle of the utility model is as follows:

[0037] In use, referring to Figure 6As shown (A in the figure represents the workpiece; B in the figure represents the magnetic disc; C in the figure represents the micrometer; and D in the figure represents the device), in use, the device is first loaded on one side of the magnetic disc; then the movable plate 2 is pushed to the right, at this time, the inclined angle 4121 to which the locking tongue 412 belongs is pressed upward by the left wall of the locking block 42 and is inserted into the connecting groove 421 under the action of the rebound force of the spring 414 when the locking tongue 412 moves to the most side connecting groove 421, if the movable plate 2 has not moved to the required position at this time, the movable plate 2 is continuously pushed to the right, at this time, the inclined angle 4121 to which the locking tongue 412 belongs is pressed upward by the inclined angle side of the connecting groove 421 and is inserted into the connecting groove 421 again under the action of the rebound force of the spring 414 when the locking tongue 412 moves to the next connecting groove 421, the locking tongue repeats the above action until the locking tongue 412 is inserted into the corresponding connecting groove 421 to meet the position requirement of the movable plate 2, that is, the positioning mechanism 5 is transported to the required position on the upper end of the magnetic disc.

[0038] When positioning, the knob of the rotary fine adjustment module 53 is rotated to make the front end of the screw rod of the rotary fine adjustment module 53 abut against the positioning plate 51 and drive the positioning plate 51 to rotate counterclockwise until the positioning plate 51 is substantially perpendicular to the side wall of the movable plate 2, then the workpiece is placed on the magnetic disc, the workpiece is pushed to make the rear side wall of the workpiece abut against the front end face of the positioning plate 51, then the micrometer is connected to the main shaft of the machine tool, the main shaft drives the micrometer to monitor the workpiece, and when a deviation occurs, the knob of the rotary fine adjustment module 53 is rotated to make the screw rod of the rotary fine adjustment module 53 continue to extend or retract according to the deviation value, so as to change the angle of the positioning plate 51 and eliminate the deviation value; through the above adjustment, the dependence on the experience and skill level of the operator is effectively reduced, at the same time, repeated measurement, adjustment and verification caused by inaccurate knocking force and position control are avoided, and the processing efficiency is improved.

[0039] It should be noted that, in the embodiment, when a deviation as shown in Figure 8 is generated, the knob of the rotary fine adjustment module 53 is rotated to make the screw rod of the rotary fine adjustment module 53 retract, at this time, the positioning plate 51 rotates clockwise under the action of the tension spring 52, so as to eliminate the deviation; and when a deviation as shown in Figure 9 is generated, the knob of the rotary fine adjustment module 53 is rotated to make the screw rod of the rotary fine adjustment module 53 continue to extend, at this time, the positioning plate 51 rotates counterclockwise under the action of the screw rod of the rotary fine adjustment module 53, so as to eliminate the deviation; it should be noted that, in the device, the left side is the default setting.

[0040] Referring to Figure 7As shown (A in the figure represents the workpiece; B in the figure represents the magnetic disc; and D in the figure represents the device), after the workpiece is positioned and is adsorbed by the magnetic disc, the horizontal rod 416 pulls the pull rod 413, the locking tongue 412 is withdrawn from the connecting groove 421, the movable plate 2 is pushed to the left, the positioning plate 51 is away from the workpiece, and thus the positioning plate 51 does not affect the machining of the workpiece in the machining process.

[0041] When a group of workpieces are machined, the movable plate 2 is pushed to the right to return to the required position, the rear side wall of the workpiece is abutted against the front end surface of the positioning plate 51, and then the workpiece is directly adsorbed and positioned by the magnetic disc; it should be noted that when the machining requirement of the workpiece is high, in order to avoid that a large error exists between the workpieces and the positioning is inaccurate, the workpiece can be positioned and deviation monitored in each round of machining, and the positioning mechanism 5 is used for fine adjustment, consumption error and improvement of machining precision.

[0042] The preferred embodiments of the utility model are described above, and the utility model is not limited to the embodiments. The utility model can be changed and varied in various ways for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning device for machining, characterized by: The utility model provides a workpiece positioning device, including base (1) and the movable plate (2) of setting above the base (1), the movable plate (2) is slidably arranged on the base (1) through linear guide rail (3), be provided with a bolt mechanism (4) between the base (1) and the movable plate (2), through the bolt mechanism (4) can realize the movable plate (2) on the base (1) left slide and limit, the movable plate (2) is provided with a positioning mechanism (5), and the positioning mechanism (5) realizes the positioning of workpiece.

2. The positioning device for machining according to claim 1, characterized in that: The linear guide rail (3) is provided with a limiting mechanism (6) for limiting the maximum position of the sliding table at both ends.

3. The positioning device for machining according to claim 2, characterized in that: The limiting mechanism (6) includes a limiting block (61) and a support seat (62), and the limiting block (61) is locked on the support seat (62) by corresponding locking bolts.

4. The positioning device for machining according to claim 1, characterized in that: The bolt mechanism (4) is composed of a bolt assembly (41) and a lock block (42) matched with the bolt assembly (41).

5. The positioning device for machining according to claim 4, characterized in that: The bolt assembly (41) includes a connecting seat (411), a bolt (412) and a pull rod (413) are arranged in the connecting seat (411), the lower end of the pull rod (413) is threadedly connected with the upper end of the bolt (412), and the bolt (412) can be slid upward in the connecting seat (411) by pulling the pull rod (413); a spring (414) is sleeved on the pull rod (413) arranged in the connecting seat (411), and under the action of no external force, the spring (414) has a tendency to drive the bolt (412) to slide downward in the connecting seat (411); and a nut (415) is arranged on the pull rod (413) outside the connecting seat (411), and the nut (415) is used for limiting the maximum sliding position of the bolt (412) downward.

6. The positioning device for machining according to claim 5, characterized in that: An inclined angle (4121) is formed at the junction of the right side wall and the lower end face of the lower end of the bolt (412); a plurality of connecting grooves (421) into which the lower end of the bolt (412) is inserted are formed on the lock block (42), and the cross section of the connecting groove (421) is in the shape of a right triangle.

7. The positioning device for machining according to claim 6, characterized in that: The connecting grooves (421) are uniformly formed along the front and rear sliding direction of the movable plate (2).

8. The positioning device for machining according to claim 5, characterized in that: A horizontal rod (416) is arranged on the upper end of the pull rod (413).

9. The positioning device for machining according to claim 1, characterized in that: The positioning mechanism (5) includes a positioning plate (51), a tension spring (52) and a fine adjustment module (53); one end of the positioning plate (51) is hinged to the movable plate (2); the tension spring (52) is connected between the positioning plate (51) and the movable plate (2), and under the action of no external force, the tension spring (52) pulls the positioning plate (51) to be attached to the end face of the movable plate (2); the fine adjustment module (53) is located at the other end of the positioning plate (51) and is fixed on the movable plate (2).

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