A multi-station fixing jig applied to a U-shaped frame CNC machining

Abstract

The utility model discloses a kind of multi-station fixing fixture applied to the processing of C frame border CNC, it is related to metal processing technical field, including bottom plate, a plurality of jig blocks are provided on bottom plate, the two sides of jig block length direction can be placed symmetrically C frame border, the two sides of jig block width direction are placed with fixed block one, the two sides of jig block length direction are respectively provided with the fixed block two and fixed block three corresponding to two C frame border hole positions and slot, and three sides of C frame border are formed clamped fixed;The interval distance between each jig block is greater than the thickness of fixed block two and fixed block three;A plurality of jig blocks are provided on bottom plate, and each jig block can place two C frame borders simultaneously, the space of each jig block is fully utilized, production efficiency is improved, through fixed block one, fixed block two and fixed block three, the three sides of two C frame borders are formed clamped fixed on one jig block, while improving production efficiency, ensure the position accuracy and stability of workpiece in machining process.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to a multi-station fixing fixture for CNC machining of C-shaped frames. Background Technology

[0002] Hardware components are tools made of metal materials, encompassing categories such as locks, handles, door and window fittings, and bathroom accessories. They are widely used in building decoration, home furnishings, and industrial production. In the production and processing of hardware components, Computer Numerical Control (CNC) is widely used due to its stable processing quality and high precision. However, to ensure processing accuracy, a fixture is needed to position and fix the workpiece. However, existing CNC machining fixtures have several shortcomings: On the one hand, for example, C-shaped workpieces can only be fixed and machined as a single workpiece in the fixture, resulting in low production efficiency and difficulty in meeting the needs of mass production of hardware parts; on the other hand, the fixation of a single workpiece often lacks multiple limiting constraints, and the workpiece is prone to displacement and vibration during CNC machining, leading to deviations in machining accuracy.

[0003] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-station fixing fixture for CNC machining of a U-shaped frame, comprising a base plate, wherein multiple fixture blocks are provided on the base plate, U-shaped frames can be symmetrically placed on both sides of the fixture blocks along their length, and fixing blocks one are placed on both sides of the fixture blocks along their width, and fixing blocks two and three are respectively provided on both sides of the fixture blocks along their length, corresponding to the holes and slots of the two U-shaped frames, and fixing blocks one, two, and three are all fixedly connected to the fixture blocks, forming a three-sided clamping of the U-shaped frame; The spacing between each of the fixture blocks is greater than the thickness of fixing block two and fixing block three.

[0006] As a further embodiment of this utility model: the jig block has protrusions extending outward on both sides in the width direction, and a screw hole is provided on the protrusion. The fixing block is provided with a through hole corresponding to the screw hole, and a bolt is provided in the through hole. The bolt passes through the through hole and is screwed to the screw hole for fixation.

[0007] As a further embodiment of this utility model: screw holes are provided on both sides of the jig block along its length, and through holes corresponding to the screw holes are provided on both sides of the jig block. Bolts are provided in the through holes and are screwed through the through holes and screwed into the screw holes.

[0008] As a further embodiment of this utility model: a groove is provided on the protrusion, and a block is provided on the fixing block that can be fitted into the groove. A screw hole is provided in the groove, and a through hole is provided in the block.

[0009] As a further embodiment of this utility model: the two sides of the fixture block are also provided with grooves corresponding to the screw holes, and the fixing block is provided with a second insert that can be fitted into the groove.

[0010] As a further embodiment of this utility model: the lower end of the base plate is provided with a fixed seat, the fixed seat is provided with a suction cup, and an air pipe connector is provided on one side of the fixed seat, the air pipe connector being connected to the suction cup.

[0011] As a further embodiment of this utility model: the fixed base is provided with a positioning hole, and the lower end of the base plate is provided with a positioning post corresponding to the positioning hole.

[0012] Compared with existing technologies, the beneficial effects of this technical solution are as follows: multiple jig blocks are set on the base plate, and each jig block can simultaneously place two C-shaped frames, making full use of the space of each jig block to meet the needs of mass production and improve production efficiency. By using fixing blocks one set on both sides in the width direction to clamp the opposite side of the two C-shaped frames, and then using two fixing blocks two and three on both sides in the length direction to clamp the two sides of the C-shaped frames in a targeted manner, corresponding to the holes and slots on both sides of the two C-shaped frames, a three-sided clamping of two C-shaped frames is formed on one jig block, realizing the effect of fixing multiple C-shaped frames together and transferring them to the CNC machining table. While improving production efficiency, it ensures the positional accuracy and stability of the workpiece during the machining process.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the planar structure of this utility model; Figure 3 This is a schematic diagram of the structure of the fixture block of this utility model; Figure 4 This is an exploded structural diagram of the fixture block of this utility model; Figure 5 This is a structural schematic diagram of the fixing base of this utility model; The corresponding labels in the attached diagram are explained as follows: 1. Base plate; 2. Fixture block; 3. Fixing block one; 4. Fixing block two; 5. Fixing block three; 6. Boss; 7. Screw hole one; 8. Through hole one; 9. Bolt one; 10. Groove one; 11. Insert one; 12. Screw hole two; 13. Through hole two; 14. Bolt two; 15. Groove two; 16. Insert two; 17. Screw hole three; 18. Through hole three; 19. Bolt three; 20. Groove three; 21. Insert three; 22. Fixing base; 23. Suction cup; 24. Air pipe connector; 25. Positioning hole; 26. Positioning post. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 A multi-station fixed fixture for CNC machining of a shaped frame includes a base plate 1, on which multiple fixture blocks 2 are provided. A shaped frame can be symmetrically placed on both sides of the length direction of the fixture block 2. Fixing blocks 1 3 are placed on both sides of the width direction of the fixture block 2. Fixing blocks 2 4 and 3 5 corresponding to the holes and slots of the two shaped frames are respectively provided on both sides of the length direction of the fixture block 2. Fixing blocks 1 3, 2 4 and 3 5 are all fixedly connected to the fixture block 2 and form a three-sided clamping of the shaped frame. The spacing between each fixture block 2 is greater than the thickness of the second fixed block 4 and the third fixed block 5. The spacing between the fixture blocks 2 is reasonably designed to provide sufficient operating space for clamping and picking up workpieces, reduce mutual influence between adjacent workpieces, and improve the convenience of operation.

[0018] Specifically, multiple fixture blocks 2 are set on the base plate 1, and each fixture block 2 can simultaneously hold two C-shaped frames, making full use of the space of each fixture block 2 to meet the needs of mass production and improve production efficiency. The two C-shaped frames are clamped on opposite sides by fixing blocks 3 set on both sides in the width direction, and the two fixing blocks 4 and 5 on both sides in the length direction are clamped on both sides of the C-shaped frames according to the holes and slots on both sides of the two C-shaped frames. Thus, the two C-shaped frames are clamped on three sides on one fixture block 2, realizing the effect of fixing multiple C-shaped frames together and transferring them to the CNC machining table. While improving production efficiency, it ensures the positional accuracy and stability of the workpiece during the processing.

[0019] Each fixture block 2 is fixedly installed to the base plate 1 by means of screw connection. That is, after the C-shaped frame is fixedly clamped on the fixture block 2, it is then fixed on the base plate 1. This avoids the difficulty in clamping the fixing block 2 4 and fixing block 3 5 due to the gap between each fixture block 2.

[0020] Based on the above embodiments, it is further proposed that the jig block 2 has protrusions 6 extending outward on both sides in the width direction, and screw holes 7 are provided on the protrusions 6. The fixing block 3 has through holes 8 corresponding to the screw holes 7. Bolts 9 are provided in the through holes 8. Bolts 9 pass through the through holes 8 and are screwed to the screw holes 7 for fixation.

[0021] Specifically, a screw hole 7 is made in the boss 6, and then the fixing block 3 is placed on the boss 6. While clamping the C-shaped frame, the through hole 8 is aligned with the screw hole 7. Then, by passing the bolt 9 through the through hole 8 and screwing it into the screw hole 7, the fixing block 3 is fixed on the boss 6 of the jig block 2, and the fixing block 3 maintains the clamping effect on the C-shaped frame.

[0022] Preferably, the boss 6 is also provided with a groove 10, the fixing block 3 is provided with a block 11 that can be fitted into the groove 10, the screw hole 7 is provided in the groove 10, and the through hole 8 is provided in the block 11.

[0023] Specifically, a groove 10 is provided on the boss 6, so that when the fixing block 3 is clamped, it can be precisely positioned by first using the engagement of the insert block 11 and the groove 10. This eliminates the need for manual effort and time to adjust the position of the fixing block 3, ensuring that the bolt 9 is screwed into the screw hole 7, thereby improving the convenience of operation.

[0024] Based on the above embodiments, it is further proposed that screw holes 12 are provided on both sides of the jig block 2 along its length, and through holes 13 corresponding to screw holes 12 are provided on both sides of the jig block 2 fixing blocks 4. Bolts 14 are provided in the through holes 13, and the bolts 14 pass through the through holes 13 and are screwed to the screw holes 12 for fixation.

[0025] Specifically, by providing screw holes 12 corresponding to fixing blocks 4 on both sides of the jig block 2 along its length, bolts 14 can be threaded through through holes 13 and screwed into screw holes 12, thereby clamping the side of the C-shaped frame with fixing blocks 4. This allows fixing blocks 4 to be fixed to the side of the jig block 2 and maintain the clamping effect on the C-shaped frame.

[0026] Preferably, the jig block 2 is provided with grooves 15 on both sides corresponding to the screw holes 12, and the fixing block 4 is provided with inserts 16 that can be fitted into the grooves 15. The fixing block 4 can be positioned and placed by fitting the inserts 16 into the grooves 15, so as to facilitate the clamping of the fixing block 4.

[0027] Among them, the fixture block 2 has screw holes 17 corresponding to the fixing block 5 on both sides along its length. The fixing block 5 has through holes 18 corresponding to the screw holes 17. Bolts 19 are installed in the through holes 18. The bolts 19 pass through the through holes 18 and are screwed to the screw holes 17 for fixation. There are also grooves 20 and inserts 21. The effect they achieve is similar to that of screw holes 12, through holes 13, bolts 14, grooves 15 and inserts 16. They will not be described in detail here.

[0028] Based on the above embodiments, it is further proposed that a fixing seat 22 is provided at the lower end of the base plate 1, a suction cup 23 is provided on the fixing seat 22, and an air pipe connector 24 is provided on one side of the fixing seat 22, and the air pipe connector 24 is connected to the suction cup 23.

[0029] Specifically, by connecting to an external negative pressure system through the air pipe connector 24, a negative pressure is formed inside the suction cup 23, generating a strong adsorption force to firmly adsorb and fix the base plate 1, ensuring stability during processing. The adsorption method allows for quick loading and unloading of the base plate 1 and the fixture block 2, saving clamping time and further improving production efficiency.

[0030] Preferably, the fixed base 22 is provided with a positioning hole 25, and the bottom of the base plate 1 is provided with a positioning post 26 corresponding to the positioning hole 25. When the base plate 1 is placed on the fixed base 22, the positioning post 26 at the bottom and the positioning hole 25 on the fixed base 22 are engaged to quickly and accurately place the base plate 1 in the designated position, ensuring accurate positioning and avoiding affecting the precision during processing.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-station fixing fixture for CNC machining of a U-shaped frame, characterized in that, Includes a base plate (1), on which multiple jig blocks (2) are provided. On both sides of the jig block (2) along the length direction, a U-shaped frame can be symmetrically placed. On both sides of the jig block (2) along the width direction, a first fixing block (3) is placed. On both sides of the jig block (2) along the length direction, a second fixing block (4) and a third fixing block (5) corresponding to the holes and slots of the two U-shaped frames are respectively provided. The first fixing block (3), the second fixing block (4) and the third fixing block (5) are all fixedly connected to the jig block (2) and form a three-sided clamping of the U-shaped frame. The spacing between each fixture block (2) is greater than the thickness of the second fixing block (4) and the third fixing block (5).

2. The multi-station fixing fixture for CNC machining of a U-shaped frame according to claim 1, characterized in that, The jig block (2) has protrusions (6) extending outward on both sides in the width direction. The protrusions (6) have screw holes (7) and the fixing block (3) has through holes (8) corresponding to the screw holes (7). A bolt (9) is installed in the through hole (8). The bolt (9) passes through the through hole (8) and is screwed to the screw hole (7).

3. The multi-station fixing fixture for CNC machining of a U-shaped frame according to claim 2, characterized in that, The fixture block (2) has screw holes (12) on both sides along its length. The fixing blocks (4) on both sides of the fixture block (2) have through holes (13) corresponding to the screw holes (12). Bolts (14) are installed in the through holes (13). The bolts (14) pass through the through holes (13) and are screwed to the screw holes (12).

4. The multi-station fixing fixture for CNC machining of a U-shaped frame according to claim 3, characterized in that, The boss (6) is also provided with a groove (10), and the fixing block (3) is provided with a block (11) that can be fitted into the groove (10). The screw hole (7) is opened in the groove (10), and the through hole (8) is opened in the block (11).

5. The multi-station fixing fixture for CNC machining of a U-shaped frame according to claim 4, characterized in that, The fixture block (2) is provided with slots (15) on both sides corresponding to the screw holes (12), and the fixing block (4) is provided with a slot (16) that can be fitted into the slots (15).

6. The multi-station fixing fixture for CNC machining of a U-shaped frame according to any one of claims 1-5, characterized in that, A fixed base (22) is provided at the lower end of the base plate (1), and a suction cup (23) is provided on the fixed base (22). An air pipe connector (24) is provided on one side of the fixed base (22), and the air pipe connector (24) is connected to the suction cup (23).

7. The multi-station fixing fixture for CNC machining of a U-shaped frame according to claim 6, characterized in that, The fixed base (22) is provided with a positioning hole (25), and the bottom plate (1) is provided with a positioning post (26) corresponding to the positioning hole (25).

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