A fixing device for end face milling of bars.

Abstract

This utility model relates to the field of bar milling technology and discloses a fixing device for milling the end faces of bars. It includes a clamping base assembly and a clamping plate assembly embedded in the upper end of the clamping base assembly. The clamping base assembly includes a set of parallel clamping seats, each with a V-shaped opening groove in the middle of its upper end. The clamping plate assembly includes a set of parallel clamping plates, each with several locking slots in the middle of its lower end. This utility model fixes multiple bars to be processed at once within the V-shaped opening groove on the clamping base assembly, and then presses the uppermost bar against the locking slots on the clamping plate assembly. This facilitates milling the end faces of multiple bars using a CNC machining center, improving processing efficiency. Furthermore, the lengths of both the clamping base assembly and the clamping plate assembly are adjustable to accommodate bars of different lengths.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, specifically a fixing device for milling the end face of bars. Background Technology

[0002] In machining, it is often necessary to mill the end faces of some bars to remove excess material (i.e., allowance) and eliminate burrs and chamfers on the workpiece edges to produce a clean surface, so that the bar meets the design requirements for geometry, dimensional accuracy and surface quality. In addition, for some complex workpieces, the end face can also serve as a reference surface for installation and clamping, which facilitates subsequent machining operations. When machining the end faces of bars, the bars need to be fixed, which requires the use of a fixing device.

[0003] Chinese patent discloses a bar milling fixing device (authorization announcement number CN110802685B). This patented technology can meet the needs of wood processing and positioning of different lengths and cross-sectional sizes. It can also automatically rotate, fix, and clamp the bars, saving time and effort and improving the processing accuracy of the bars. However, it can only fix one bar at a time, and the processing efficiency is not high for batch processing of bars of the same model. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for milling the end face of bars, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fixing device for milling the end face of a bar stock includes a clamping seat assembly and a clamping plate assembly embedded in the upper end of the clamping seat assembly. The clamping seat assembly includes a set of parallel clamping seats, each clamping seat having a mounting block fixedly connected to both sides of its lower end, and a V-shaped opening groove formed in the middle of the upper end of the clamping seat. The clamping plate assembly includes a set of parallel clamping plates, each clamping plate having several bayonet slots formed in the middle of its lower end, and the bayonet slots at the lower end of the clamping plates all corresponding to the V-shaped opening grooves at the upper end of the clamping seats.

[0007] As a further embodiment of this utility model: a fixing block is fixedly connected to the upper end of both sides of each clamping seat, and a screw rod is provided through the two corresponding fixing blocks in the front-back direction. A set of nuts is engaged with the outer side of the screw rod at the front and rear ends of each fixing block.

[0008] As a further embodiment of this utility model: a set of fixing blocks II are fixedly connected to the upper end of each clamping plate, a screw II is provided through the inner side of each fixing block II, and a connecting plate is fixedly provided between the two sets of screw II in the front-back direction, and a set of nuts II are engaged and connected to the outer side of each screw II at the front and rear ends of each fixing block II.

[0009] As a further improvement of this utility model: a set of guide rods is fixedly connected to the upper end of the clamping seat near the outer side of the V-shaped opening groove, and a set of guide holes is opened at the upper end of the clamping plate near the outer side of the fixing block two, and each guide rod is slidably connected in the corresponding guide hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention fixes multiple bars to be processed at once by placing them in the V-shaped opening groove on the clamping base assembly, and then pressing them against the uppermost bar through the bayonet groove on the clamping plate assembly. This allows the multiple bars to be fixed between the clamping base assembly and the clamping plate assembly, facilitating the milling cutter of the CNC machining center to mill the two ends of the multiple bars, thus improving processing efficiency. Furthermore, the lengths of both the clamping base assembly and the clamping plate assembly can be adjusted to accommodate bars of different lengths, making it highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a fixing device for milling the end face of a bar.

[0013] Figure 2 This is a schematic diagram of the clamping seat assembly in a fixing device for milling the end face of a bar.

[0014] Figure 3 This is a schematic diagram of the clamping plate assembly in a fixing device for milling the end face of bars;

[0015] Figure 4 This is a schematic diagram of a clamping device used for milling the end face of a bar when holding the bar.

[0016] In the diagram: 1. Clamping seat; 2. Mounting block; 3. Nut 1; 4. Screw 1; 5. Fixing block 1; 6. Guide rod; 7. Clamping plate; 8. Connecting plate; 9. Screw 2; 10. Fixing block 2; 11. Nut 2; 12. V-shaped opening groove; 13. Guide hole; 14. Bayonet groove; 15. Rod. Detailed Implementation

[0017] Please see Figures 1-4In this embodiment of the present invention, a fixing device for milling the end face of a bar includes a clamping seat assembly and a clamping plate assembly embedded in the upper end of the clamping seat assembly. The clamping seat assembly includes a set of parallel clamping seats 1, with a mounting block 2 fixedly connected to both sides of the lower end of each clamping seat 1. A V-shaped opening groove 12 is formed in the middle of the upper end of the clamping seat 1. By inserting bolts into the inner side of the mounting block 2 and fixing it to the worktable of the CNC machining center, the entire clamping seat assembly can be fixed to the worktable of the CNC machining center. The upper part remains stationary; the clamping plate assembly includes a set of parallel clamping plates 7, each clamping plate 7 having several bayonet slots 14 at its lower center. The bayonet slots 14 at the lower end of the clamping plate 7 correspond to the V-shaped opening slots 12 at the upper end of the clamping seat 1. Multiple bars 15 to be processed can be placed simultaneously inside the V-shaped opening slots 12, and the number of uppermost bars 15 is the same as the number of bayonet slots 14. By pressing the bayonet slots 14 onto the uppermost bars 15, multiple bars 15 can be fixed between the clamping seat assembly and the clamping plate assembly. Figure 4 As shown, this facilitates the milling cutter of the CNC machining center to mill the two ends of multiple bars 15, thereby improving machining efficiency.

[0018] exist Figure 2 In the middle, a fixing block 5 is fixedly connected to the upper end of both sides of each clamping seat 1. A screw 4 is provided through the two corresponding fixing blocks 5 in the front-back direction. A set of nuts 3 are engaged with the outer side of the screw 4 at the front and rear ends of each fixing block 5. By rotating the nuts 3, the position of the nuts 3 on the screw 4 can be adjusted, and the distance between the two clamping seats 1 can be changed, so that bars 15 of different lengths can be placed.

[0019] exist Figure 3 In this assembly, a set of fixing blocks 10 are fixedly connected to the upper end of each clamping plate 7. A screw 9 is installed through the inner side of each fixing block 10, and a connecting plate 8 is fixedly installed between two sets of screws 9 in the front-back direction. A set of nuts 11 are engaged with the outer side of each screw 9 at the front and rear ends of each fixing block 10. By rotating the nuts 11, the position of the nuts 11 on the screws 9 can be adjusted, thereby changing the distance between the two clamping plates 7 to meet the requirements of the clamping seat assembly after length adjustment. The upper end of the connecting plate 8 is connected to an external hydraulic cylinder. The extension and retraction of the hydraulic cylinder can drive the entire clamping plate assembly to move up and down, so as to securely fix the bar 15 in the V-shaped opening groove 12 through the clamping plate assembly.

[0020] exist Figure 2 and Figure 3In the clamping seat 1, a set of guide rods 6 are fixedly connected to the upper end near the outer side of the V-shaped opening groove 12. A set of guide holes 13 are opened on the upper end of the clamping plate 7 near the outer side of the fixing block 10. Each guide rod 6 is slidably connected in the corresponding guide hole 13. The guide rods 6 guide the up and down movement of the clamping plate 7, so that the entire clamping plate assembly can move up and down stably.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixing device for milling the end face of a bar stock, comprising a clamping seat assembly and a clamping plate assembly embedded in and mounted on the upper end of the clamping seat assembly, characterized in that, The clamping seat assembly includes a set of parallel clamping seats (1), each clamping seat (1) has a mounting block (2) fixedly connected to both sides of its lower end, and a V-shaped opening groove (12) is provided in the middle of the upper end of the clamping seat (1). The clamping plate assembly includes a set of parallel clamping plates (7), each clamping plate (7) has several bayonet grooves (14) provided in the middle of its lower end, and the bayonet grooves (14) at the lower end of the clamping plate (7) correspond to the V-shaped opening grooves (12) at the upper end of the clamping seat (1).

2. The fixing device for milling the end face of a bar according to claim 1, characterized in that, Each clamping seat (1) has a fixed block (5) fixedly connected to the upper end of both sides. A screw (4) is provided between two corresponding fixed blocks (5) in the front-back direction. A set of nuts (3) is engaged with the outer side of the screw (4) at the front and rear ends of each fixed block (5).

3. The fixing device for milling the end face of a bar according to claim 1, characterized in that, Each clamp (7) is fixedly connected to a set of fixing blocks (10) at its upper end. Each fixing block (10) has a screw (9) running through its inner side. A connecting plate (8) is fixedly connected between the two sets of screws (9) in the front-back direction. Each screw (9) has a set of nuts (11) meshing with its outer side at the front and rear ends of each fixing block (10).

4. The fixing device for milling the end face of a bar according to claim 1, characterized in that, A set of guide rods (6) is fixedly connected to the upper end of the clamping seat (1) near the outer side of the V-shaped opening groove (12). A set of guide holes (13) is opened on the upper end of the clamping plate (7) near the outer side of the fixing block two (10). Each guide rod (6) is slidably connected in the corresponding guide hole (13).

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