Bearing flange punching tool

Abstract

The utility model provides a bearing flange punching tool which is used for positioning a workpiece body and comprises a tool body and a bolt, the tool body comprises a tool base, the top of the tool base is sunken downwards to be provided with an annular groove, so that a circular positioning boss is formed at the top of the tool base, and the bolt is arranged in the annular groove. A plurality of positioning points are annularly arranged in the annular groove at intervals, a positioning protrusion is arranged at one positioning point, threaded holes are formed in the other positioning points, and the bolts can be in threaded connection with the threaded holes. The original counterbore of the bearing flange is utilized, positioning of axial punching and radial punching is achieved through positioning of the counterbore, and axial punching and radial punching at specific positions are completed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing flange processing, in particular to a bearing flange punching tool. Background Art

[0002] In the drilling process of some bearing flanges, it is necessary to use the line between the processed countersunk hole and the center line of the bearing as the reference line, and drill holes in the axial and radial directions of the bearing flange respectively to ensure that the center line of the hole and the reference line form a specific angle. This requires special tooling to complete the positioning of the bearing flange and realize the drilling operation in two directions at one time. Summary of the invention

[0003] In view of the deficiencies in the prior art, the utility model provides a bearing flange punching tool, which utilizes the original countersunk hole of the bearing flange to realize the positioning of axial punching and radial punching through the countersunk hole positioning, completes the axial punching and radial punching at a specific position, and performs two punching operations at one time, with high efficiency and guaranteed positioning accuracy. The technical solution adopted by the utility model is:

[0004] A bearing flange punching tool is used to position a workpiece body, including a tool body and a bolt. The tool body includes a tool base. The top of the tool base is recessed downward and provided with an annular groove, so that a circular positioning boss is formed on the top of the tool base. Several positioning points are arranged in annular intervals in the annular groove, one of the positioning points is provided with a positioning protrusion, and the other positioning points are provided with threaded holes, and the bolts can be threadedly connected to the threaded holes.

[0005] Furthermore, the front and rear sides of the tool body are respectively recessed downward from the top surface of the tool body to form a first step, and the first step extends into the annular groove and forms a notch with the side wall of the annular groove.

[0006] Furthermore, the left and right sides of the tool body extend outward to form a second step.

[0007] Furthermore, a tooling center hole is provided through the center of the positioning boss.

[0008] Further, the workpiece body comprises a first cylinder, a second cylinder and a third cylinder which are connected in sequence and whose diameters decrease successively, and a workpiece center hole is provided through the workpiece body, and the center line of the workpiece center hole coincides with the first cylinder;

[0009] A plurality of countersunk holes are formed through the bottom surface of the first cylinder and the bottom surface of the second cylinder, and the plurality of countersunk holes are arranged in an annular pattern at intervals;

[0010] The positioning boss is adapted to the center hole of the workpiece, the positioning protrusion is adapted to the countersunk hole, and the bolt can penetrate the countersunk hole and press the workpiece body.

[0011] Advantages of the utility model: The tooling body designed in the present application has an annular groove, a positioning boss and a positioning protrusion according to the annular countersunk hole and the center hole of the workpiece that have been processed on the bearing flange. It is only necessary to place the first cylinder of the workpiece body into the annular groove so that the positioning boss enters the center hole of the workpiece, and at the same time align the positioning protrusion with one of the countersunk holes to complete the positioning of the bearing flange. After the bearing flange is fixed by bolts, the axial and radial holes of the workpiece body are respectively punched to achieve one positioning and two punching operations, thereby ensuring processing accuracy and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structural composition of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the workpiece body of the utility model.

[0014] In the figure: 100-tool body, 110-tool base, 120-annular groove, 130-positioning boss, 140-positioning protrusion, 150-threaded hole, 160-first step, 170-second step, 180-tool center hole, 200-bolt, 300-workpiece body, 310-first cylinder, 320-second cylinder, 330-third cylinder, 340-workpiece center hole, 350-countersunk hole, 360-first radial hole, 370-second radial hole, 380-third axial hole. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] Please refer to the attached Figure 1 and 2 The utility model provides a bearing flange punching tool for positioning a workpiece body 300, including a tool body 100 and a bolt 200. The tool body 100 includes a tool base 110. The top of the tool base 110 is recessed downward and provided with an annular groove 120, so that a circular positioning boss 130 is formed on the top of the tool base 110. A plurality of positioning points are arranged in annular intervals in the annular groove 120, one of the positioning points is provided with a positioning protrusion 140, and the other positioning points are provided with threaded holes 150. The bolt 200 can be threadedly connected to the threaded hole 150.

[0017] In a specific embodiment, the structure of the workpiece body 300 is as follows: the workpiece body 300 includes a first cylinder 310, a second cylinder 320 and a third cylinder 330 which are connected in sequence and whose diameters decrease successively; a workpiece center hole 340 is penetrated through the workpiece body 300, and the center line of the workpiece center hole 340 coincides with the first cylinder 310; a plurality of countersunk holes 350 are penetrated through the bottom surface of the first cylinder 310 toward the bottom surface of the second cylinder 320, and the plurality of countersunk holes 350 are arranged in a ring shape at intervals; wherein the positioning boss 130 is adapted to the workpiece center hole 340, the positioning protrusion 140 is adapted to the countersunk hole 350, and the bolt 200 can penetrate the countersunk hole 350 and press the workpiece body 300.

[0018] The specific process of using this embodiment is as follows: first, place the first cylinder 310 of the workpiece body on the annular groove 120, so that the positioning boss 130 corresponds to the center hole 340 of the workpiece, and rotate the workpiece body 300 along the center line of the annular groove 120 (hereinafter referred to as the first center line) until the positioning protrusion 140 corresponds to the large diameter end of the countersunk hole 350. As the positioning protrusion 140 enters the large diameter end of the countersunk hole 350 and the positioning boss 130 enters the center hole 340 of the workpiece, the radial positioning of the workpiece body 300 is completed, and then a number of bolts 200 are screwed into the threaded holes 150 in sequence to fix the workpiece body 300 on the tooling body 100 to complete the axial positioning of the workpiece body.

[0019] During processing, the line connecting the center of the positioning protrusion 140 and the center of the positioning boss 130 is taken as the first straight line, and the plane where the first radial hole 360, the second radial hole 370 and the third axial hole 380 to be processed are located is taken as the first plane, and there is a specific angle between the first straight line and the first plane.

[0020] In this embodiment, in order to facilitate the removal of the workpiece body 300 from the tooling body 100, the front and rear sides of the tooling body 100 are respectively recessed downward from the top surface of the tooling body 100 to form a first step 160, and the first step 160 extends into the annular groove 120 and forms a notch between the side wall of the annular groove; after the first step 160 is formed, part of the structure of the first cylinder 310 of the workpiece body 300 is exposed from the notch, and the exposed part of the first cylinder 310 is convenient for grasping the workpiece body 300 by holding the workpiece body 300.

[0021] In this embodiment, in order to increase the stability of the bottom of the tool body 100 being fixed on the machine tool chuck, the left and right sides of the tool body 100 extend outward to form a second step 170 .

[0022] In this embodiment, a tooling center hole 180 is provided through the center of the positioning boss 130; the center line of the tooling center hole 180 may coincide with or be parallel to the first center line. Since a large amount of heat is generated during the drilling operation, it is necessary to continuously spray cutting fluid to cool the workpiece itself, but the positioning boss 130 blocks the original workpiece center hole 340, and the cutting fluid sprayed into the inside of the workpiece center hole 340 is difficult to flow out; by providing the tooling center hole 180, the cutting fluid can flow out from the workpiece center hole 340 and the tooling center hole 180 from the bottom of the workpiece body 300, providing a flow channel for the cutting fluid.

[0023] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit 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 bearing flange punching tool for positioning a workpiece body (300), characterized in that: The tool body (100) comprises a tool base (110), the top of the tool base (110) is recessed downward and provided with an annular groove (120), so that a circular positioning boss (130) is formed on the top of the tool base (110), a plurality of positioning points are arranged in annular intervals in the annular groove (120), one of the positioning points is provided with a positioning protrusion (140), and the other positioning points are provided with threaded holes (150), and the bolts (200) can be threadedly connected to the threaded holes (150).

2. The bearing flange punching tool according to claim 1, characterized in that: The front and rear sides of the tool body (100) are respectively recessed downward from the top surface of the tool body (100) to form a first step (160), and the first step (160) extends into the annular groove (120) and forms a notch with the side wall of the annular groove.

3. The bearing flange punching tool according to claim 1, characterized in that: The left and right sides of the tool body (100) extend outwards to form a second step (170).

4. The bearing flange punching tool according to claim 1, characterized in that: A tooling center hole (180) is provided through the center of the positioning boss (130).

5. The bearing flange punching tool according to any one of claims 1 to 4, characterized in that: The workpiece body (300) comprises a first cylinder (310), a second cylinder (320) and a third cylinder (330) which are connected in sequence and whose diameters decrease in sequence; a workpiece center hole (340) is provided through the workpiece body (300); and a center line of the workpiece center hole (340) coincides with the first cylinder (310); A plurality of countersunk holes (350) are provided through the bottom surface of the first cylinder (310) and the bottom surface of the second cylinder (320), and the plurality of countersunk holes (350) are arranged at intervals in a ring shape; The positioning boss (130) is adapted to the center hole (340) of the workpiece, the positioning protrusion (140) is adapted to the countersunk hole (350), and the bolt (200) can penetrate the countersunk hole (350) and press the workpiece body (300).

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