Positioning clamp for machining of planer type milling machine

Abstract

The positioning clamp comprises a base, a vertical rod and a supporting column are installed on the base, a first supporting seat is arranged at the upper end of the vertical rod, a threaded rod is installed on the first supporting seat through a bearing, a movable ring is installed on the threaded rod in a threaded mode, and the movable ring is connected with the supporting column. A second supporting seat is installed at the end, away from the first supporting seat, of the threaded rod, a plurality of first movable connecting rods are symmetrically and rotationally connected to the movable ring, a plurality of second movable connecting rods are symmetrically and rotationally connected to the second supporting seat, and a fixing plate and a pulley are arranged at the end, away from the second supporting seat, of each second movable connecting rod; each first movable connecting rod is rotationally connected to the corresponding fixing plate in position, the first movable connecting rods and the second movable connecting rods rotate by adjusting the positions of the movable rings, and therefore the positions of the pulleys are changed, and the circular metal parts of different sizes can be fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool industry, in particular to a positioning fixture used for gantry milling machine processing. Background Art

[0002] Gantry milling machine is also called gantry milling machine. It is a milling machine with a gantry frame and a long horizontal bed. Multiple milling cutters can be used to process surfaces at the same time on the gantry milling machine. The processing accuracy and production efficiency are relatively high. It is suitable for processing the plane and inclined surface of large workpieces in batch and mass production. CNC gantry milling machine can also process space curved surfaces and some special parts.

[0003] The positioning fixture used in traditional gantry milling machines can only fix the outside of the workpiece when processing it. It is difficult to fix circular metal parts from the outside, and fixing from the outside also affects the processing of the outside of circular metal parts, which has many restrictions. The positioning fixture used in traditional gantry milling machines must be fixed or removed multiple times, which is cumbersome and affects the processing efficiency of the gantry milling machine. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The utility model aims to solve the problems in the background technology and provides a positioning fixture for gantry milling machine processing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A positioning fixture for gantry milling machine processing includes a base, a vertical pole and a support column are installed on the base, a first support seat is arranged at the upper end of the vertical pole, a threaded rod is installed on the first support seat through a bearing, a movable ring is threadedly installed on the threaded rod, a second support seat is installed on the end of the threaded rod away from the first support seat, a plurality of first movable links are symmetrically rotatably connected to the movable ring, a plurality of second movable links are symmetrically rotatably connected to the second support seat, a fixed plate and a pulley are arranged on the end of each second movable link away from the second support seat, and each of the first movable links is rotatably connected to a fixed plate at a corresponding position.

[0007] Preferably, one end of the threaded rod passes through the first support seat and is installed with a circular handwheel, and the threaded rod is connected to the second support seat through a bearing.

[0008] Preferably, an auxiliary rod is installed on the second support seat, and a limit block is provided at the end of the auxiliary rod away from the second support seat. A spring is installed in the support column, the upper end of the spring is connected to the support rod, and the support rod is slidably connected in the support column, and a clamping block is installed at the upper end of the support rod, and the lower end of the limit block is clamped in the clamping block.

[0009] Preferably, the length of the card block slot is a and the width is b, the length of the limit block is h and the width is l, and the size of the card block slot is the same as the size of the limit block, that is, a=h; b=l.

[0010] Preferably, an internal thread is arranged inside the movable ring to cooperate with the thread of the threaded rod.

[0011] Preferably, a slide groove is provided on the outer side wall of the support column, a plurality of horizontal grooves are symmetrically provided on the inner side wall of the slide groove, a fixing piece is provided at the bottom of the support rod, and the fixing piece is clamped in one of the horizontal grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The threaded rod is rotated by the circular hand wheel to make the movable ring reciprocate. The movable connecting rod is extended or retracted by the movement of the movable ring to fix circular metal parts of different sizes. The movable connecting rod is extended to fix the circular metal parts from the inside during processing, which is convenient for processing the outside of the circular metal parts. When adjusting the position of the parts, it is only necessary to rotate the hand wheel to adjust, which is convenient to operate.

[0014] 2. By setting the support column, slide groove, spring and fixing parts, the support rod can be pressed and retracted into the support column, which is convenient for the collection of round metal parts before and after processing. At the same time, when the round metal parts are processed, the support rod is connected to the card block to fix the limit block, forming two end supports on the overall structure, thereby improving the stability of the structure.

[0015] 3. By adjusting the position of the base, the position of the fixed circular metal parts can be flexibly changed to avoid frequent loosening of the fixed parts, thereby improving the accuracy and efficiency of processing circular metal parts.

[0016] In summary, the utility model is flexible to use and can fix circular metal parts from the inside during milling machine processing. The structure is stable during processing and is suitable for circular metal parts of different specifications. The operation is convenient and the accuracy and efficiency of processing circular metal parts are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the positioning fixture for gantry milling machine processing proposed by the utility model;

[0018] Figure 2 This is a top view of the positioning fixture for gantry milling machine processing proposed by the utility model;

[0019] Figure 3 This is an enlarged view of the support column of the positioning fixture for gantry milling machine processing proposed by the utility model.

[0020] In the figure: 1 base, 2 vertical rod, 3 circular hand wheel, 4 first support seat, 5 threaded rod, 6 movable ring, 7 first movable connecting rod, 8 fixed plate, 9 second movable connecting rod, 10 pulley, 11 limit block, 12 clamping block, 13 support rod, 14 support column, 15 slide groove, 16 auxiliary rod, 17 second support seat, 18 spring, 19 fixing part. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 , used for gantry milling machine processing positioning fixture, including a base 1, the base 1 is equipped with a vertical rod 2 and a support column 14, the vertical rod 2 is provided with a first support seat 4 at the upper end, the first support seat 4 is provided with a threaded rod 5, one end of the threaded rod 5 passes through the first support seat 4 and is provided with a circular handwheel 3, and a movable ring 6 is threadedly installed on the threaded rod 5, and the threaded rod 5 is rotated by rotating the circular handwheel 3, thereby driving the movable ring 6 to move on the threaded rod, and the threaded rod 5 is installed with a second support seat 17 at one end away from the first support seat 4, and a plurality of first movable connecting rods 7 are symmetrically rotatably connected to the movable ring 6, and a plurality of second movable connecting rods 9 are symmetrically rotatably connected to the second support seat 17, each second movable connecting rod 9 is provided with a fixed plate 8 and a pulley 10 at one end away from the second support seat 17, and each first movable connecting rod 7 is rotatably connected to the fixed plate 8 corresponding to the position, and the first movable connecting rod 7 and the second movable connecting rod 9 are rotated correspondingly through the movement of the movable ring 6, so that the position of the pulley 10 changes, and pipes with different inner diameters can be fixed;

[0023] Among them, an auxiliary rod 16 is installed on the second support seat 17, and a limit block 11 is set at the end of the auxiliary rod 16 away from the second support seat 17. A spring 18 is installed in the support column 14, and the upper end of the spring 18 is connected to the support rod 13, and the support rod 13 is slidably connected in the support column 14. A card block 12 is installed at the upper end of the support rod 13, and the lower end of the limit block 11 is clamped in the card block 12. A slide groove 15 is provided on the outer wall of the support column 14, and a plurality of horizontal The support rod 13 is provided with a fixing part 19 at the bottom, and the fixing part 19 is clamped in one of the horizontal grooves. By pressing the support rod 13 into the support column 14, the annular metal part is placed into the fixture from one end of the limit block 11. By rotating the circular hand wheel 3, the pulley 10 is close to the inner wall of the annular metal part. The elastic force of the spring 18 restores its original length to drive the support rod 13 to rise, so that the clamping block 12 fixes the limit block 11 and then limits the auxiliary rod 16 and the second support seat 17.

[0024] When the utility model is in use, the staff can first retract the support rod 13 into the support column 14, and then manually put the circular metal part on the outside of the pulley 10, and then adjust the fixing piece 19 to the position so that the fixing piece 19 is clamped in the horizontal groove corresponding to the position, relax the spring 18, and make the support rod 13 and the clamping block 12 rise to the position that can support the fixed limit block 11, to ensure that the limit block 11 limits the rotation of the auxiliary rod 16, and then ensure that the second support seat 17 is stationary, and then rotate the circular handwheel 3 to make the threaded rod 5 rotate, and the second support seat 17 is stationary. The second movable link 9, the fixing plate 8 and the first movable link 7 limit the rotation of the movable ring 6, so that the position of the movable ring 6 on the threaded rod 5 changes, and the pulley 10 is driven to move toward the inner wall of the circular metal part through the rotation of the first movable link 7 and the second movable link 9, until the pulley 10 is against the circular metal, and the rotation of the circular handwheel 3 is stopped, and then the circular metal part can be processed.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A positioning fixture for a gantry milling machine, comprising a base (1), characterized in that: The base (1) is provided with a vertical rod (2) and a support column (14); the vertical rod (2) is provided with a first support seat (4) at the upper end; the first support seat (4) is provided with a threaded rod (5) via a bearing; a movable ring (6) is threadedly provided on the threaded rod (5); a second support seat (17) is provided on the end of the threaded rod (5) away from the first support seat (4); a plurality of first movable connecting rods (7) are symmetrically rotatably connected to the movable ring (6); a plurality of second movable connecting rods (9) are symmetrically rotatably connected to the second support seat (17); each of the second movable connecting rods (9) is provided with a fixed plate (8) and a pulley (10) at the end away from the second support seat (17); and each of the first movable connecting rods (7) is rotatably connected to a fixed plate (8) at a corresponding position.

2. The positioning fixture for gantry milling machine processing according to claim 1 is characterized in that: One end of the threaded rod (5) passes through the first support seat (4) and is installed with a circular hand wheel (3); the threaded rod (5) is connected to the second support seat (17) via a bearing.

3. The positioning fixture for gantry milling machine processing according to claim 1 is characterized in that: An auxiliary rod (16) is installed on the second support seat (17), and a limit block (11) is arranged at one end of the auxiliary rod (16) away from the second support seat (17). A spring (18) is installed in the support column (14), and the upper end of the spring (18) is connected to the support rod (13), and the support rod (13) is slidably connected in the support column (14). A clamping block (12) is installed at the upper end of the support rod (13), and the lower end of the limit block (11) is clamped in the clamping block (12).

4. The positioning fixture for gantry milling machine processing according to claim 3 is characterized in that: The length of the slot of the clamping block (12) is a, and the width is b; the length of the limiting block (11) is h, and the width is l; the size of the slot of the clamping block (12) is the same as that of the limiting block (11), that is, a=h; b=l.

5. The positioning fixture for gantry milling machine processing according to claim 1 is characterized in that: The movable ring (6) is internally provided with an internal thread which is threadably matched with the threaded rod (5).

6. The positioning fixture for gantry milling machine processing according to claim 3 is characterized in that: The outer wall of the support column (14) is provided with a slide groove (15), and the inner wall of the slide groove (15) is symmetrically provided with a plurality of horizontal grooves. A fixing piece (19) is provided at the bottom of the support rod (13), and the fixing piece (19) is clamped in one of the horizontal grooves.

Images