CNC (computer numerical control) movable positioning and clamping jig

Abstract

The CNC movable positioning and clamping jig comprises a magnetic platform, backup plates, an X-axis positioning block and a Y-axis positioning block, the backup plates are fixedly connected to the outer edge of the magnetic platform in the horizontal direction and the vertical direction respectively, and the X-axis positioning block and the Y-axis positioning block are attached to the backup plates arranged in the horizontal direction and the vertical direction respectively and attracted to the magnetic platform. The upper side edge and the lower side edge of the X-axis positioning block and the left side edge and the right side edge of the Y-axis positioning block are each provided with at least one positioning opening, magnetic attraction rods are inserted into the positioning openings, and the X-axis positioning block and the Y-axis positioning block are attracted to the magnetic platform through the magnetic attraction rods. The movable positioning jig can be moved and removed after a part is erected, is not influenced by a magnetic attraction platform, solves the problem that the machining appearance of the part is limited, and is simple in structure, reliable in quality, stable, durable, high in clamping speed, capable of repeatedly positioning and machining a plurality of parts through one-time tool setting, simple in structure and easy to operate; and repeated positioning can be achieved through secondary clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC clamping fixtures, in particular to a CNC movable positioning clamping fixture. Background Art

[0002] The traditional clamping method of existing CNC clamping fixtures is to set the workpiece on a platform and then use a micrometer to level the workpiece. The leveling process has high requirements on operating techniques and personnel skills, slow clamping speed, long machine standby time, and low efficiency.

[0003] When there are multiple parts, the secondary clamping cannot repeat the positioning. When using traditional plate-assisted processing, the shape of the parts cannot be processed, the processed parts are restricted, and the clamping method is time-consuming, which is not conducive to mass production. Utility Model Content

[0004] In order to solve the above technical problems, the utility model designs a CNC movable positioning clamping fixture.

[0005] The utility model adopts the following technical solutions:

[0006] A CNC movable positioning clamping fixture comprises a magnetic platform, a backing plate, an X-axis positioning block and a Y-axis positioning block. The outer edge of the magnetic platform is fixedly connected with the backing plate in the horizontal direction and the vertical direction respectively. The X-axis positioning block and the Y-axis positioning block are respectively closely attached to the backing plates arranged in the horizontal direction and the vertical direction and adsorbed on the magnetic platform. At least one positioning opening is respectively provided on the upper and lower sides of the X-axis positioning block and on the left and right sides of the Y-axis positioning block. A magnetic suction rod is inserted into the positioning opening. The X-axis positioning block and the Y-axis positioning block are adsorbed on the magnetic platform through the magnetic suction rod.

[0007] Preferably, the X-axis positioning block and the Y-axis positioning block are brass positioning blocks, which are not affected by the magnetic platform and can be moved and taken out.

[0008] Preferably, the outer end of the positioning opening is open, and the outer end of the magnetic rod is exposed from the positioning opening. The magnetic rod is in linear contact with the support plate and the part to ensure the accuracy of repeated positioning.

[0009] Preferably, the magnetic rod is a tungsten steel rod.

[0010] Preferably, handles are fixedly connected to the X-axis positioning block and the Y-axis positioning block, respectively, to facilitate the movement and extraction of the X-axis positioning block and the Y-axis positioning block.

[0011] Preferably, a plurality of cleaning grooves are respectively provided under the support plate, so as to facilitate the timely discharge of cutting fluid and iron chips during processing and make the platform easy to clean.

[0012] Preferably, the handle is fixedly connected to the X-axis positioning block and the Y-axis positioning block by bolts respectively.

[0013] Preferably, the backing plate is fixedly connected to the magnetic platform by bolts.

[0014] The beneficial effects of the utility model are as follows: (1) the utility model changes the traditional scanning table clamping method into a movable positioning fixture clamping method, which solves the problem of slow traditional clamping speed. The X-axis positioning block and the Y-axis positioning block of the movable positioning fixture are made of brass and can be moved and removed after the parts are set up. They are not affected by the magnetic suction platform and solve the problem of limited part processing shape; (2) the secondary clamping can be repeatedly positioned, and the traditional surface contact is improved to line contact with higher repeated positioning accuracy. The repeated clamping positioning accuracy can reach 0.005mm, the clamping speed is fast, the operation is simple, and it is easy to use. The technical requirements for personnel are not high, and the clamping speed is fast; (3) there are multiple cleaning grooves at the bottom of the support plate, and the side wall of the support plate is not in direct contact with the contact surface of the platform, which is convenient for the timely discharge of cutting fluid and iron filings during processing. The platform is easy to clean, preventing dirt from causing errors in the secondary clamping, thereby ensuring the accuracy of the secondary clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is an exploded diagram of the utility model;

[0018] In the figure: 1. Magnetic platform, 2. Backing plate, 3. X-axis positioning block, 4. Y-axis positioning block, 5. Tungsten steel rod, 6. Handle, 7. Parts, 8. Cleaning slot. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0020] Example: Figure 1-Figure 3 As shown, a CNC movable positioning clamping fixture comprises a magnetic platform 1, a backing plate 2, an X-axis positioning block 3 and a Y-axis positioning block 4. The outer edge of the magnetic platform is fixedly connected with the backing plates in the horizontal direction and the vertical direction respectively. The X-axis positioning block and the Y-axis positioning block are respectively closely attached to the backing plates arranged in the horizontal direction and the vertical direction and adsorbed on the magnetic platform. At least one positioning opening is respectively provided on the upper and lower sides of the X-axis positioning block and the left and right sides of the Y-axis positioning block. A magnetic suction rod is inserted into the positioning opening. The X-axis positioning block and the Y-axis positioning block are adsorbed on the magnetic platform through the magnetic suction rod. The part 7 is closely attached to the X-axis positioning block and the Y-axis positioning block for positioning, so that multiple pieces can be processed at one time and multiple pieces can be positioned repeatedly.

[0021] The X-axis positioning block and the Y-axis positioning block are brass positioning blocks. The outer end of the positioning port is open, and the outer end of the magnetic attraction rod is exposed from the positioning port. The magnetic attraction rod is made of tungsten steel rod 5.

[0022] Handles 6 are fixedly connected to the X-axis positioning block and the Y-axis positioning block respectively.

[0023] A plurality of cleaning grooves 8 are respectively provided below the support plate. The handles are respectively fixedly connected to the X-axis positioning block and the Y-axis positioning block by bolts. The support plate is fixedly connected to the magnetic platform by bolts.

[0024] The utility model changes the clamping mode of the traditional table scanning mode into the clamping mode of the movable positioning fixture, which solves the problem of slow clamping speed of the traditional clamping mode. The X-axis positioning block and the Y-axis positioning block of the movable positioning fixture are brass, which can be moved and removed after the parts are set up, and are not affected by the magnetic suction platform, which solves the problem of limited shape of parts processing. The movable positioning fixture has a simple structure, reliable quality, stability and durability, and a fast clamping speed. It can realize one-time tool setting and multiple pieces of repeated positioning and processing of multiple pieces. The structure is simple and easy to operate; the secondary clamping can be repeatedly positioned, and the traditional surface contact is improved to the line contact repeated positioning accuracy with higher repeatability. The repeated clamping positioning accuracy can reach 0.005mm, the clamping speed is fast, the operation is simple, easy to use, the technical requirements for personnel are not high, and the clamping speed is fast; there are multiple cleaning grooves at the bottom of the support plate, and the side wall of the support plate is not in direct contact with the contact surface of the platform, which is convenient for the timely discharge of cutting fluid and iron filings in processing, and the platform is easy to clean to prevent dirt from causing errors in the secondary clamping, thereby ensuring the accuracy of the secondary clamping.

[0025] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A CNC movable positioning fixture, characterized in that: It includes a magnetic platform, a backing plate, an X-axis positioning block and a Y-axis positioning block. The outer edge of the magnetic platform is fixedly connected with the backing plates in the horizontal direction and the vertical direction respectively. The X-axis positioning block and the Y-axis positioning block are respectively closely attached to the backing plates arranged in the horizontal direction and the vertical direction and adsorbed on the magnetic platform. At least one positioning opening is respectively provided on the upper and lower sides of the X-axis positioning block and on the left and right sides of the Y-axis positioning block. A magnetic suction rod is inserted into the positioning opening. The X-axis positioning block and the Y-axis positioning block are adsorbed on the magnetic platform through the magnetic suction rod.

2. The CNC movable positioning fixture according to claim 1 is characterized in that: The X-axis positioning block and the Y-axis positioning block are brass positioning blocks.

3. The CNC movable positioning fixture according to claim 1 is characterized in that: The outer end of the positioning opening is open, and the outer end of the magnetic attraction rod is exposed from the positioning opening.

4. The CNC movable positioning fixture according to claim 1 is characterized in that: The magnetic attraction rod is a tungsten steel rod.

5. The CNC movable positioning fixture according to claim 1 is characterized in that: The X-axis positioning block and the Y-axis positioning block are respectively fixedly connected with handles.

6. The CNC movable positioning fixture according to claim 1 is characterized in that: A plurality of cleaning grooves are respectively arranged below the support plate.

7. The CNC movable positioning fixture according to claim 5 is characterized in that: The handles are fixedly connected to the X-axis positioning block and the Y-axis positioning block respectively by bolts.

8. The CNC movable positioning fixture according to claim 1 is characterized in that: The backing plate is fixedly connected to the magnetic platform by bolts.

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