Positioning accuracy detection tool for numerical control machine tool

Abstract

The utility model discloses numerical control machine tool positioning precision detection frock relates to processing machine tool equipment technical field, and it includes base and four groups of limit seat corresponding to the four corners of board material, and the limit seat is set respectively on two groups of longitudinal unit in pairs, with the help of longitudinal unit adjusting self longitudinal position, and the hollow lead screw and solid lead screw of coaxial sleeve connection formation horizontal unit are set up on the base, and two groups of longitudinal unit correspond with hollow lead screw and solid lead screw combination, with the help of horizontal unit adjusting self horizontal position. Compared with prior art, the design can make the board material left and right deviation through the horizontal unit of independent adjustment, thereby changing the punching position of the machine head to the board material.

Description

Technical Field

[0001] This utility model relates to a CNC machine tool positioning accuracy testing fixture, belonging to the technical field of machining equipment. Background Technology

[0002] Before use, certain types of sheet materials require pre-drilling using a machine tool. A search revealed a patent with publication number "CN220864202U" that discloses a sheet material drilling device for easy fixation. The adjusting frame for mounting the drilling machine (head) can slide on a support rod on the processing table to adjust the drilling position of the drilling machine on the sheet material. Similarly, the applicant has also designed a CNC machine tool positioning accuracy testing fixture and has filed the following application. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a CNC machine tool positioning accuracy testing fixture.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a CNC machine tool positioning accuracy detection fixture, including a base and four sets of limiting seats corresponding to the four corners of the plate. The limiting seats are respectively arranged in pairs on two sets of longitudinal units to adjust their own longitudinal position by means of the longitudinal units. Hollow lead screws and solid lead screws coaxially sleeved to form transverse units are arranged on the base. The two sets of longitudinal units are combined with the hollow lead screws and solid lead screws to adjust their own transverse position by means of the transverse units.

[0005] Preferably, the longitudinal unit has a forward lead screw and a reverse lead screw connected to the longitudinal support plate via a connecting shaft. Each of the two sets of limiting seats is combined with the corresponding forward lead screw and reverse lead screw. The forward lead screw and the reverse lead screw can be driven to rotate by the longitudinal rotating wheel so that the two sets of limiting seats slide closer or further apart relative to each other on the longitudinal support plate.

[0006] Preferably, the solid lead screw has a smooth section for engaging with the hollow lead screw, and when engaged with the hollow lead screw, the outer surfaces of the threaded portions of both are flush with each other.

[0007] Preferably, the hollow lead screw and the solid lead screw also form an extension section on the same side equipped with a transverse rotating wheel. The hollow lead screw and the solid lead screw can be driven to rotate by the transverse rotating wheel so that the two sets of longitudinal units can slide on the base.

[0008] Preferably, the limiting seat itself has a positioning angle formed by the splicing of two limiting plates.

[0009] Preferably, the base is also provided with a guide rod corresponding to the hollow lead screw and the solid lead screw, and the two sets of longitudinal units have guide blocks that can slide on the guide rod.

[0010] Preferably, the base has a forward / backward unit that enables it to move longitudinally or backward.

[0011] This utility model has at least the following advantages:

[0012] 1. The horizontal units can be adjusted independently to shift the board material left and right, thereby changing the drilling position;

[0013] 2. It can be adapted to the positioning of boards with different length and width ratios, and has a wide range of applications;

[0014] 3. The retraction of longitudinal and transverse units can prevent the edges from scratching when the board is removed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0017] Figure 3 This is an assembly diagram of hollow lead screws and solid lead screws.

[0018] In the diagram, 1-base; 101-guide rod; 2-limiting seat; 201-positioning angle; 3-forward / reverse unit; 301-forward / reverse slide rail; 302-forward / reverse slider; 4-longitudinal unit; 401-longitudinal support plate; 411-guide block; 402-combination lead screw; 412-forward lead screw; 422-reverse lead screw; 432-connecting shaft; 442-longitudinal rotating wheel; 403-longitudinal slide rail; 404-longitudinal slider; 5-transverse unit; 501-hollow lead screw; 502-solid lead screw; 503-transverse rotating wheel; 504-transverse slide rail; 505-transverse slider; 6-support seat; 601-washer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-3As shown: A CNC machine tool positioning accuracy testing fixture includes a base 1 with four sets of limit seats 2 on top. Each limit seat 2 has a positioning angle 201 formed by two limit plates. After adjustment and movement, the limit seats 2 can be adjusted so that the positioning angles 201 together form a limiting area that matches the contour of the sheet metal. The sheet metal can be placed in the limiting area and its top angle is held by each positioning angle 201 to achieve the limiting. The advance and retraction unit 3 below the base 1 can bring the sheet metal to be processed to the head of the CNC machine tool for drilling, or bring the drilled sheet metal back from the head of the machine tool for accuracy testing.

[0021] Furthermore, the aforementioned base 1 has two sets of longitudinal units 4, and the limiting seats 2 are arranged in pairs on the longitudinal units 4 to adjust their own longitudinal position with the help of the longitudinal units 4. As shown in the figure, a combined lead screw 402 is installed on the longitudinal support plate 401 of the longitudinal unit 4. The combined lead screw 402 is formed by assembling a forward lead screw 412 and a reverse lead screw 422 through a connecting shaft 432. The two sets of limiting seats 2 slide longitudinally on the longitudinal support plate 401 by means of a longitudinal slide rail 403 and a longitudinal slider 404. They are combined with the corresponding forward lead screw 412 and reverse lead screw 422 by their own threaded blocks. When the longitudinal rotating wheel 442 at the end of the combined lead screw 402 is rotated, the two sets of limiting seats 2 arranged on it can slide relative to each other to move closer or further away.

[0022] Furthermore, the aforementioned base 1 also has a transverse unit 5, and the limiting seat 2 can adjust its transverse position by means of the transverse unit 5. As shown in the figure, the transverse unit 5 has a hollow lead screw 501 and a solid lead screw 502 coaxially sleeved together. The longitudinal support plates 401 of the two sets of longitudinal units 4 are also combined with the corresponding hollow lead screw 501 and solid lead screw 502 by threaded blocks, and can slide laterally on the base 1 by means of transverse slide rail 504 and transverse slider 505. When the transverse rotating wheel 503 at the end of the hollow lead screw 501 or the solid lead screw 502 is rotated, the transverse position of the corresponding longitudinal unit 4 and its limiting seat 2 can be adjusted independently.

[0023] Specifically, the part of the solid lead screw 502 that is used to connect with the hollow lead screw 501 is a smooth section with a smooth surface. When the two lead screws are connected, the outer surfaces of the threaded portions can be flush with each other. At the same time, the support seat 6 provided on the base 1 for supporting the lead screw is equipped with a soft rubber washer 601 on its inner side. After the extensions formed by the two lead screws in the same direction pass through the washer 601 and the support seat 6, the aforementioned transverse rotating wheel 503 is installed at the end position of each of the two extensions formed in the same direction. Rotating the transverse rotating wheel 503 can rotate the corresponding lead screw, thereby independently adjusting the transverse position of the two sets of longitudinal units 4 and their limiting seats 1.

[0024] Specifically, the base 1 is provided with a guide rod 101 corresponding to the horizontal unit 5, and the two sets of vertical units 4 have guide blocks 411 that are slidably sleeved with the guide rod 101.

[0025] Furthermore, the aforementioned forward / backward unit 3 used to realize the forward or backward movement of the base 1 can be a forward / backward slide rail 301 and a forward / backward slider 302.

[0026] In use, this design only requires rotating the longitudinal or transverse rollers in sequence to adjust the position of the limiting seat, thereby forming a limiting area that matches the contour of the sheet metal between the positioning angles. Since the positions of the two sets of longitudinal units can be adjusted independently by the hollow and solid lead screws, the limiting area can be shifted to the left and right. If this is done, the sheet metal will no longer be positioned at the center of the base and can be drilled in other directions in conjunction with the machine head.

[0027] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. Unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art. Unless otherwise indicated, words such as "upper," "lower," "front," and "rear" are for ease of description only and are not limited to a position or spatial orientation.

Claims

1. A numerical control machine tool positioning accuracy detection tool, comprising a base (1) and four sets of limiting seats (2) corresponding to the four corners of the plate, characterized in that: The limiting seats (2) are respectively arranged in pairs on two sets of longitudinal units (4) to adjust their own longitudinal position by means of the longitudinal units (4). The hollow screw (501) and solid screw (502) that are coaxially sleeved to form the transverse unit (5) are arranged on the base (1). The two sets of longitudinal units (4) are combined with the hollow screw (501) and solid screw (502) respectively to adjust their own transverse position by means of the transverse unit (5).

2. The positioning accuracy detection tooling for CNC machine tools as claimed in claim 1, characterized in that: The longitudinal unit (4) has a forward lead screw (412) and a reverse lead screw (422) connected on the longitudinal support plate (401) via a connecting shaft (432). The two sets of limiting seats (2) are each combined with the corresponding forward lead screw (412) and reverse lead screw (422). The forward lead screw (412) and reverse lead screw (422) can be driven to rotate by the longitudinal rotating wheel (442) so that the two sets of limiting seats (2) slide closer or further apart on the longitudinal support plate (401).

3. The positioning accuracy detection tooling for CNC machine tools of claim 1, wherein: The solid lead screw (502) has a smooth section for engaging with the hollow lead screw (501). When the solid lead screw (502) engages with the hollow lead screw (501), the outer surfaces of the two screws are flush with each other.

4. The CNC machine tool positioning accuracy testing fixture as described in claim 3, characterized in that: The hollow lead screw (501) and the solid lead screw (502) also form an extension section on the same side equipped with a transverse rotating wheel (503). The hollow lead screw (501) and the solid lead screw (502) can be driven to rotate by the transverse rotating wheel (503) so that the two sets of longitudinal units (4) can slide on the base (1).

5. The positioning accuracy detection tooling for CNC machine tools of claim 1, wherein: The limiting seat (2) itself has a positioning angle (201) formed by the splicing of two limiting plates.

6. The positioning accuracy detection tool for CNC machine tools according to claim 1, characterized in that: The base (1) is also provided with a guide rod (101) corresponding to the hollow lead screw (501) and the solid lead screw (502), and the two sets of longitudinal units (4) have guide blocks (411) that can slide on the guide rod (101).

7. The CNC machine tool positioning accuracy testing fixture as described in any one of claims 1-6, characterized in that: The base (1) has a forward and backward unit (3) that enables it to move forward or backward longitudinally.

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