Knife rest device for processing seam allowance of rear axle reinforcing ring

Abstract

The utility model provides a knife rest device for processing a rear axle reinforcing ring spigot, which comprises a cutterhead, a knife rest mounted on the cutterhead and a knife holder mounted on the knife rest, the knife rest is provided with two mounting holes, the knife holder is provided with two fixing holes corresponding to the two mounting holes, and the knife holder is provided with a plurality of fixing holes corresponding to the two mounting holes. And the tool rest and the tool apron are fixed by locking bolts through the opposite mounting holes and fixing holes. According to the tool rest device for machining the seam allowance of the rear axle reinforcing ring, machining of the rear axle reinforcing rings of different specifications can be met by replacing different tool aprons, that is, only the locking bolts need to be loosened, the old tool aprons need to be taken down, the new tool aprons need to be taken down, then the fixing holes and the mounting holes are aligned again, and finally the locking bolts are screwed down again, operation is easy, and the tool rest device is suitable for machining of the seam allowance of the rear axle reinforcing ring. And the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a tool holder device used for machining stoppers of a rear axle reinforcement ring. Background Art

[0002] The rear axle is the rear drive shaft component of the vehicle's power transmission. It consists of two half-bridges, which can implement half-bridge differential movement. It is also a device used to support the wheels and connect the rear wheels. The middle section of the rear axle has a accommodating cavity for accommodating the power transmission component. The accommodating cavity is a structure with an open end, and a reinforcement ring is provided on the end face so that the reducer that matches the transmission component in the accommodating cavity can be directly installed on the reinforcement ring through a threaded hole to avoid the lateral tension generated by the components on the opening directly acting on the opening. Therefore, the center of the reinforcement ring needs to be milled and other processes.

[0003] Currently, CNC machine tools are commonly used in batch processing of rear axle reinforcement rings. However, the tool holders of existing CNC machine tools are mostly fixed with slide rails and locking bolts. Although it is convenient to move and adjust the axial distance between the tool and the reinforcement ring on the tool holder to meet the requirements of reinforcement rings of different specifications, the tool must be re-calibrated after each adjustment, which not only takes a lot of time but also reduces production efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a tool holder device for machining the stopper of a rear axle reinforcement ring, so as to solve the problems in the above-mentioned background technology.

[0005] The utility model provides a tool holder device for processing the stopper of a rear axle reinforcement ring, comprising a cutter disc, a tool holder installed on the cutter disc, and a tool holder installed on the tool holder, wherein the tool holder is provided with two mounting holes, and the tool holder is provided with two fixing holes corresponding to the two mounting holes, and the tool holder and the tool holder are fixed by locking bolts through the relative mounting holes and fixing holes.

[0006] Furthermore, one end of the locking bolt is provided with an external thread section, and an internal thread hole adapted to the external thread section is provided in the mounting hole.

[0007] Furthermore, the two mounting holes are staggered on the tool holder, and the corresponding two fixing holes are staggered on the tool base.

[0008] Furthermore, the two fixing holes are provided with coaxial annular grooves therewith, and the annular grooves are used to accommodate gaskets sleeved on the locking bolts.

[0009] Furthermore, a sliding hole is provided on the knife seat, and the sliding hole is connected with the mounting hole through an arc-shaped sliding groove.

[0010] Furthermore, the width of the arc-shaped sliding groove is equal to or greater than the diameter of the locking bolt.

[0011] Furthermore, the inner diameter of the sliding hole is equal to or greater than the diameter of the gasket.

[0012] Furthermore, the cutter disc is provided with a slide rail passing through the center of the circle, and a knife box is slidably arranged in the slide rail so that the knife box can be fixed in the slide rail by adjusting bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The tool holder device of the utility model for processing the stop of the rear axle reinforcement ring can meet the processing requirements of rear axle reinforcement rings of different specifications by replacing different tool holders. That is, it is only necessary to loosen the locking bolt, remove the old tool holder, take the new tool holder, and then realign the fixing hole and the installation hole, and finally tighten the locking bolt again. The operation is simple and the production efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a tool holder device for machining a stopper of a rear axle reinforcement ring according to an embodiment of the present invention;

[0016] Figure 2 Schematic diagram of the exploded structure of the tool holder device for machining the stopper of the rear axle reinforcement ring according to one embodiment of the utility model Figure 1 ;

[0017] Figure 3 for Figure 2 A local enlarged schematic diagram in FIG.

[0018] Figure 4 Schematic diagram of the exploded structure of the tool holder device for machining the stopper of the rear axle reinforcement ring according to one embodiment of the utility model Figure 2 ;

[0019] Figure 5 This is a schematic diagram of a tool holder device for machining a stopper of a rear axle reinforcement ring according to an embodiment of the present invention;

[0020] Description of Figure Numbers:

[0021] 10. Cutter head; 11. Slide rail;

[0022] 20. Tool holder; 21. Mounting hole;

[0023] 30. Knife holder; 31. Fixing hole; 32. Annular groove; 33. Arc-shaped slide groove; 34. Slide hole;

[0024] 40. Locking bolt; 50. Gasket; 60. Blade box.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and beneficial effects of the present invention more clearly understood, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] In the description of the present invention, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the present specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by those familiar with the technology, and are not intended to limit the applicable conditions of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", "middle", and "one" cited in the present specification are only for the convenience of description and are not intended to limit the applicable scope of the present invention. Changes or adjustments in their relative relationships should also be considered as the applicable scope of the present invention without substantially changing the technical content.

[0028] like Figure 1-3 As shown, an embodiment of the present invention provides a tool holder device for machining a rear axle reinforcement ring stop, comprising a cutter disc 10, a tool holder 20 mounted on the cutter disc 10, and a tool holder 30 mounted on the tool holder 20, wherein the tool holder 30 can be mounted with a tool for machining an inner circle and a chamfer, the tool holder 20 is provided with two mounting holes 21, the tool holder 30 is provided with two fixing holes 31 corresponding to the two mounting holes 21, the tool holder 20 and the tool holder 30 are fastened by a locking bolt 40 through the relative mounting holes 21 and the fixing holes 31. During the specific operation, the fixing hole 31 on the tool holder 30 is aligned with the mounting hole 21 on the tool holder 20, and the two are fixed together by the locking bolt 40. In order to meet the processing needs of rear axle reinforcement rings of different specifications, multiple tool holders 30 are provided, and the tool position on each tool holder 30 is different, so that it can meet the processing needs of rear axle reinforcement rings of different specifications. When a rear axle reinforcement ring of a certain specification needs to be processed, only the corresponding tool holder 30 is needed, and there is no need to align the tool, thereby improving production efficiency.

[0029] In the embodiment of the present invention, different tool holders 30 can be replaced to meet the processing needs of rear axle reinforcement rings of different specifications. That is, it is only necessary to loosen the locking bolt 40, remove the old tool holder 30, take the new tool holder 30, and then realign the fixing hole 31 and the mounting hole 21, and finally tighten the locking bolt 40 again. The operation is simple and effectively improves production efficiency.

[0030] like Figure 1 As shown, in the embodiment of the present invention, one end of the locking bolt 40 is provided with an external thread section, and the mounting hole 21 is provided with an internal thread hole adapted to the external thread section. The fixing function of the locking bolt 40 is achieved through the cooperation of the internal and external threads.

[0031] When the tool holder 30 needs to be fixed, the external thread section of the locking bolt 40 is screwed into the internal thread hole in the mounting hole 21 of the tool holder 20. The tool holder 30 can be quickly fixed by the cooperation of the threads. The locking bolt 40 can be tightened by hand or with tools until the tool holder 30 is firmly fixed on the tool holder 20. When the tool holder 30 needs to be replaced, it is only necessary to unscrew the locking bolt 40, take out the new tool holder 30, and then screw the locking bolt 40 in again to complete the fixation.

[0032] like Figure 1-2 As shown, in the embodiment of the present invention, the two mounting holes 21 are staggered on the tool holder 20 , and the corresponding two fixing holes 31 are staggered on the tool base 30 to provide a better fixing effect.

[0033] like Figure 3 As shown, in an embodiment of the present utility model, an annular groove 32 coaxial therewith is provided on the two fixing holes 31, and the annular groove 32 is used to accommodate a gasket 50 sleeved on the locking bolt 40. The gasket 50 can increase the contact area between the locking bolt 40 and the fixing hole 31, thereby improving the stability and reliability of the fixation of the tool holder 30 and reducing loosening caused by vibration or external force.

[0034] When in use, prepare the tool holder 30 and the tool holder 20, ensure that the fixing hole 31 on the tool holder 30 matches the mounting hole 21 on the tool holder 20, put the gasket 50 on the locking bolt 40, ensure that the size of the gasket 50 matches the annular groove 32, align the fixing hole 31 on the tool holder 30 with the mounting hole 21 on the tool holder 20, ensure that each fixing hole 31 has a corresponding mounting hole 21, pass the locking bolt 40 with the gasket 50 through the fixing hole 31 and the mounting hole 21, ensure that the gasket 50 is correctly placed in the annular groove 32, and tighten the locking bolt 40 so that the tool holder 30 is firmly fixed to the tool holder 20.

[0035] like Figure 3As shown, in an embodiment of the present utility model, a sliding hole 34 is provided on the tool holder 30, and the sliding hole 34 is connected to the mounting hole 21 through an arc-shaped sliding groove 33. The groove width of the arc-shaped sliding groove 33 is equal to or greater than the diameter of the locking bolt 40, and the inner diameter of the sliding hole 34 is equal to or greater than the diameter of the gasket 50, so that the tool holder 30 can be disassembled without completely unscrewing the locking bolt 40, thereby reducing the disassembly steps and improving convenience.

[0036] When the tool needs to be removed, the locking bolt 40 can be loosened first to separate the tool holder 30 from the tool holder 20, but it is not necessary to completely unscrew it from the mounting hole 21. The tool holder 30 can then be rotated so that the locking bolt 40 enters the sliding hole 34 through the arc-shaped sliding groove 33. At this time, the tool holder 30 can be removed from the tool holder 20; conversely, during installation, the sliding hole 34 on the tool holder 30 is aligned with the locking bolt 40 and inserted, and then rotated in the opposite direction and the locking bolt 40 is located in the fixing hole 31 of the tool holder 30 through the arc-shaped sliding groove 33. The locking bolt 40 can then be tightened until the tool holder 30 is firmly fixed to the tool holder 20, thereby effectively improving the installation and disassembly efficiency.

[0037] like Figure 4 As shown, in an embodiment of the present utility model, the cutter disc 10 is provided with a slide rail 11 passing through the center of the circle thereof, and a knife box 60 is slidably arranged in the slide rail 11 so that the knife box 60 can be fixed in the slide rail 11 by adjusting the bolt. When the position of the knife box 60 needs to be fixed, the adjusting bolt is tightened so that the knife box 60 fits tightly with the slide rail 11, thereby fixing the position of the knife box 60, wherein the knife box 60 can be installed with a tool for processing an outer circle.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tool holder device for machining the stopper of a rear axle reinforcement ring, characterized in that: The present invention comprises a cutter disc (10), a cutter holder (20) mounted on the cutter disc (10), and a cutter seat (30) mounted on the cutter holder (20), wherein the cutter holder (20) is provided with two mounting holes (21), and the cutter seat (30) is provided with two fixing holes (31) corresponding to the two mounting holes (21), and the cutter holder (20) and the cutter seat (30) are fixed by locking bolts (40) through the relative mounting holes (21) and fixing holes (31).

2. A tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 1, characterized in that: One end of the locking bolt (40) is provided with an external thread section, and the mounting hole (21) is provided with an internal thread hole adapted to the external thread section.

3. The tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 1, characterized in that: The two mounting holes (21) are staggered on the tool holder (20), and the corresponding two fixing holes (31) are staggered on the tool base (30).

4. A tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 1, characterized in that: The two fixing holes (31) are provided with coaxial annular grooves (32), and the annular grooves (32) are used to accommodate a gasket (50) sleeved on the locking bolt (40).

5. A tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 4, characterized in that: The knife seat (30) is provided with a sliding hole (34), and the sliding hole (34) is connected to the mounting hole (21) through an arc-shaped sliding groove (33).

6. A tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 5, characterized in that: The groove width of the arc-shaped sliding groove (33) is equal to or greater than the diameter of the locking bolt (40).

7. The tool holder device for machining the stopper of a rear axle reinforcement ring according to claim 5, characterized in that: The inner diameter of the sliding hole (34) is equal to or greater than the diameter of the gasket (50).

8. A tool holder device for machining the stopper of a rear axle reinforcement ring according to any one of claims 1 to 7, characterized in that: The cutter disc (10) is provided with a slide rail (11) passing through the center of the circle thereof, and a cutter box (60) is slidably arranged in the slide rail (11) so that the cutter box (60) is fixed in the slide rail (11) by adjusting a bolt.

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