Flywheel punching mechanism

Abstract

The utility model relates to the technical field of drilling equipment, in particular to a flywheel punching mechanism which comprises a machining table, a vertical multi-shaft drilling machine, an auxiliary drilling support and a positioning structure, the vertical multi-shaft drilling machine, the auxiliary drilling support and the positioning structure are arranged on the machining table, and the positioning structure comprises a positioning plate, a center positioning column, an auxiliary positioning column and an auxiliary positioning block arranged on the side edge of the auxiliary positioning column. The central positioning column and the auxiliary positioning column are arranged on the positioning plate; the center positioning column is a conical column with the radius gradually increased from top to bottom, a strip-shaped protrusion is arranged on the side wall of the conical column, and the protruding height of the strip-shaped protrusion relative to the conical face of the center positioning column is gradually decreased from top to bottom. An arc-shaped block is arranged at the top of the auxiliary positioning column, an arc-shaped hole is formed in the arc-shaped block, and the auxiliary positioning block is slidably connected into the arc-shaped hole. The utility model provides a flywheel punching mechanism which can solve the technical problem that the universality is poor in the prior art, meanwhile, the flywheel punching rhythm can be shortened, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a flywheel drilling mechanism. Background Art

[0002] A flywheel is a disc-shaped part with a large moment of inertia. Its main function is similar to that of an energy storage device. In a four-stroke engine, the role of the flywheel is particularly important.

[0003] In order to ensure the precise fit between the flywheel and other components, the flywheel is usually drilled on its surface by a multi-axis drilling machine during the processing process to achieve precise docking with components such as the crankshaft and clutch. The prior art discloses a multi-axis drilling machine, and its announcement number is CN115533153B. The multi-axis drilling machine includes a bed, a mounting frame is vertically slidably connected to the bed, a mounting rod is rotatably connected to the mounting frame, and a driving mechanism, a feeding mechanism and an adjusting mechanism are provided on the mounting frame. The adjusting mechanism includes a connecting rod connected to the mounting frame, a rotating ball for adjusting the drilling rod angle is rotatably connected to the connecting rod, a thrust cylinder is inserted into the rotating ball and passes through the center of the rotating ball, a locking groove is provided on the connecting rod, a locking rod extending from the locking groove is provided on the outer wall of the rotating ball, and a locking plate for fixing the locking rod is provided on the locking rod, and the locking plate is attached to the outer wall of the connecting rod. The operator turns the rotating ball, and the locking rod slides in the locking groove. By setting the rotating ball, the drilling angle of the drill rod can be adjusted, so that holes at multiple angles can be processed to meet the processing requirements of different workpieces and improve the scope of application.

[0004] However, the prior art still has the following technical problems:

[0005] 1. If Figure 1 , Figure 2 The flywheel shown has a special structure. Since the structure of the flywheel varies depending on the mechanical equipment to which it is applied, the existing flywheel basically has a flat top surface structure, while the flywheel of the prior art has many special-shaped structures at the bottom, which makes it easy to move during the punching process, affecting the accuracy of the finished product.

[0006] 2. Due to different specification requirements, such as Figure 1 , Figure 2 The position of the waist hole of the flywheel structure shown may move slightly as needed, but the existing technology cannot effectively position the flywheel according to the position of different waist holes, making the existing technology less universal. Utility Model Content

[0007] The utility model provides a flywheel punching mechanism, which can solve the technical problem of poor universality in the prior art.

[0008] This application provides the following technical solutions:

[0009] The flywheel punching mechanism includes a processing table, and also includes a vertical multi-axis drilling machine arranged on the processing table, an auxiliary drilling bracket and a positioning structure, the positioning structure includes a positioning plate, a central positioning column, an auxiliary positioning column and an auxiliary positioning block arranged on the side of the auxiliary positioning column, the central positioning column and the auxiliary positioning column are both arranged on the positioning plate; the central positioning column is a conical column with a radius gradually increasing from top to bottom, and a strip protrusion is arranged on the side wall of the conical column, and the protrusion height of the strip protrusion relative to the conical surface of the central positioning column gradually decreases from top to bottom; an arc block is arranged on the top of the auxiliary positioning column, an arc hole is opened on the arc block, and the auxiliary positioning block is slidably connected in the arc hole.

[0010] Beneficial effects:

[0011] 1. Effectively fix the flywheel to prevent it from displacement during the punching process: The center positioning column and the auxiliary positioning block cooperate with each other so that the center positioning column can be inserted into the center hole of the flywheel, and the strip protrusion on the side wall of the center positioning column is inserted into the strip groove opened on the inner wall of the center hole of the flywheel, thereby preventing the flywheel from rotating. In addition, by adjusting the position of the auxiliary positioning block in the arc hole and inserting the auxiliary adjustment block into the waist hole of the flywheel, the flywheel can be auxiliary positioned to prevent the flywheel from displacement during the punching process.

[0012] 2. It has high versatility and can be applied to flywheel punching positioning with different waist hole positions: by adjusting the position of the auxiliary positioning block in the arc hole, the auxiliary positioning block can be adjusted according to the different waist hole positions on flywheels of different models, thereby effectively improving versatility. For flywheels with different waist hole positions, the rapid adjustment of the auxiliary positioning block can improve the punching efficiency as a whole without switching tooling, thereby improving the overall processing efficiency.

[0013] Furthermore, the height of the central positioning column is higher than that of the auxiliary positioning column.

[0014] Beneficial effect: When placing the flywheel, since the height of the center positioning column is higher than that of the auxiliary positioning column, the center positioning column contacts the center hole of the flywheel first, and the strip protrusion on the side wall of the center positioning column is inserted into the strip groove opened on the inner wall of the center hole of the flywheel to quickly position the flywheel. When the flywheel continues to be pressed down, the auxiliary positioning column is quickly inserted into the waist hole of the flywheel to complete the auxiliary positioning.

[0015] Furthermore, the auxiliary positioning block includes a rectangular block and a positioning screw, the rectangular block is arranged at the end of the positioning screw, and the positioning screw is slidably connected in the arc hole.

[0016] Beneficial effect: The positioning screw can slide in the arc hole, and the matching nut can fix the positioning screw in the arc hole, so that the position of the rectangular block set at the end of the positioning screw is fixed, which is convenient for adjusting the position of the rectangular block as needed.

[0017] Furthermore, one end of the positioning screw away from the rectangular block contacts the positioning plate.

[0018] Beneficial effect: When the end of the positioning screw away from the rectangular block contacts the positioning plate, the rectangular block can be effectively supported to prevent the rectangular block from shifting during the drilling process, making the rectangular block more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of an existing flywheel.

[0020] Figure 2 for Figure 1 Bottom view of .

[0021] Figure 3 It is a three-dimensional diagram of the first embodiment of the present utility model.

[0022] Figure 4 for Figure 3 A three-dimensional diagram of the hole for installing the flywheel.

[0023] Figure 5 It is a three-dimensional diagram of the second embodiment of the present utility model.

[0024] Figure 6 for Figure 4 Magnified view of the positioning structure. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The marks in the drawings of the specification include: flywheel 1, center hole 11, strip groove 111, waist hole 12, processing table 2, T-shaped groove 21, vertical multi-axis drilling machine 3, column 31, hydraulic drilling head 32, multi-axis device 33, ear plate 331, drill bit 34, auxiliary drilling bracket 4, T-shaped protrusion positioning plate 41, T-shaped protrusion 411, guide column 42, auxiliary drilling pressure plate 43, straight plate 431, circular plate 432, shock-absorbing screw 44, shock-absorbing spring 441, positioning structure 5, positioning plate 51, center positioning column 52, strip protrusion 521, auxiliary positioning column 53, arc block 54, arc hole 541, auxiliary positioning block 55, rectangular block 551, positioning screw 552.

[0027] Embodiment 1

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the flywheel drilling mechanism includes a processing table 2, a vertical multi-axis drilling machine 3 fixed to the processing table 2 by bolts, an auxiliary drilling bracket 4 installed on the processing table 2 by interference fit, and a positioning structure 5 fixed to the auxiliary drilling bracket 4 by bolts.

[0029] The processing table 2 includes a stepped table body and four T-shaped grooves 21 arranged on the higher step of the table body.

[0030] The vertical multi-axis drilling machine 3 includes a column 31, a hydraulic drilling head 32, a multi-axis device 33, and a drill bit 34. A mounting base is provided at the bottom of the column 31. The column 31 is installed in the mounting base with an interference fit. The mounting base is fixed to the processing table 2 with bolts. The hydraulic drilling head 32 is slidably connected to the column 31. The multi-axis device 33 is fixedly arranged at the lower part of the hydraulic drilling head 32, and the drill bit 34 is installed at the lower part of the multi-axis device 33.

[0031] The auxiliary drilling bracket 4 includes a T-shaped protrusion positioning plate 41 and a guide column 42 welded on the T-shaped protrusion positioning plate 41. A T-shaped protrusion 411 is arranged at the bottom of the T-shaped protrusion positioning plate 41, and the T-shaped protrusion 411 cooperates with the T-shaped groove 21 on the processing table 2 to realize the installation of the T-shaped protrusion positioning plate 41. In other embodiments other than this embodiment, screws can also be passed through the T-shaped protrusion positioning plate 41 to realize re-fixation with the processing table. Ear plates 331 are provided on both sides of the multi-axis device 33, and the ear plates 331 are slidably connected to the guide columns 42. An auxiliary drilling pressure plate 43 is provided on the guide columns 42 between the ear plates 331 and the T-shaped protruding positioning plate 41. The auxiliary drilling pressure plate 43 includes two straight plates 431 and a circular plate 432 fixed between the two straight plates 431. The two straight plates 431 are slidably connected to the guide columns 42 respectively, and shock-absorbing screws 44 passing through the straight plates 431 and the ear plates 331 are provided. A shock-absorbing spring 441 is provided on the shock-absorbing screw 44 between the straight plates 431 and the ear plates 331. The circular plate 432 is provided between the two straight plates 431, and the upper edge of the circular plate 432 is welded and fixed to the lower part of the straight plate 431. An auxiliary support hole is provided on the circular plate 432 corresponding to the drill bit 34.

[0032] like Figure 6 As shown, the positioning structure 5 includes a positioning plate 51, a central positioning column 52, an auxiliary positioning column 53 and an auxiliary positioning block 55 arranged on the auxiliary positioning column 53. The central positioning column 52 and the auxiliary positioning column 53 are both arranged on the positioning plate 51; the central positioning column 52 is a conical column with a radius gradually increasing from top to bottom, and a strip-shaped protrusion 521 is arranged on the side wall of the conical column. Figure 6The protrusion height of the middle strip protrusion 521 relative to the conical surface of the central positioning column 52 gradually decreases from top to bottom; an arc block 54 is welded or bolted to the top of the auxiliary positioning column 53. In this embodiment, the arc block 54 and the auxiliary positioning column 53 are welded and fixed, and an arc hole 541 is opened on the arc block 54. The auxiliary positioning block 55 is slidably connected in the arc hole 541. The auxiliary positioning block 55 includes a rectangular block 551 and a positioning screw 552 fixed at the lower end of the rectangular block 551. The positioning screw 552 is passed through and slidably connected in the arc hole 541, and a nut is provided on the rod of the positioning screw 552 located below the arc block 54. Tightening the nut can fix the position of the entire auxiliary positioning block 55 on the arc block 54; the height of the central positioning column 52 is higher than that of the auxiliary positioning column 53.

[0033] Here’s how to use it:

[0034] 1) Adjust the positioning structure 5: align the center hole 11 of the flywheel 1 with the center positioning column 52, and align the strip protrusion 521 on the side wall of the center positioning column 52 with the strip groove 111 on the inner wall of the center hole 11 of the flywheel 1, adjust the position of the auxiliary positioning block 55 in the arc hole 541, so that the rectangular block 551 can be inserted into the waist hole 12 of the flywheel 1, then rotate and tighten the nut on the positioning screw 552 to fix the position of the rectangular block 551, and further press down the flywheel 1 to prevent the flywheel 1 from shaking.

[0035] 2) Drilling: Start the vertical multi-axis drilling machine 3, the hydraulic drilling head 32 is pressed down and rotated, driving the multi-axis device 33 to rotate, thereby causing the multiple drill bits 34 installed on the multi-axis device 33 to rotate. During the downward pressing process of the hydraulic drilling head 32, when the auxiliary drilling pressure plate 43 is pressed down, the circular plate 432 will first contact the toothless area in the middle of the flywheel 1 and press the flywheel 1. The hydraulic drilling head 32 continues to press the drill bit 34 to start drilling holes on the flywheel 1. During the drilling process, the auxiliary support holes on the circular plate 432 can play an auxiliary supporting role for the drill bit 34 to prevent the drill bit 34 from breaking or shifting. After the drilling is completed, the hydraulic drilling head 32 rises and stops rotating, and the flywheel 1 with holes is removed.

[0036] 3) Repeat the processing of the flywheel 1 with the same waist hole 12 position. If the flywheel 1 with the same waist hole 12 position is to be processed, the flywheel 1 is directly placed on the center positioning column 52, so that the strip protrusion 521 on the side wall of the center positioning column 52 is aligned with the strip groove 111 on the inner wall of the center hole 11 of the flywheel 1. Since the height of the center positioning column 52 is higher than the auxiliary positioning column 53, the center positioning column 52 will first contact the flywheel 1 and use the strip protrusion 521 to preliminarily position the flywheel 1. Therefore, during the process of pressing down the flywheel 1, the rectangular block 551 will directly insert into the waist hole 12 of the flywheel 1 to further position the flywheel 1. After the flywheel 1 is positioned, repeat step 2) to achieve repeated processing of the flywheel 1 with the same waist hole 12 position.

[0037] 4) Processing the flywheel 1 with the changed waist hole 12 position. Since the position of the waist hole 12 on different flywheels 1 is different from the relative position of the strip groove 111 on the flywheel 1, when it is necessary to switch a different flywheel 1 for processing during the production process, it is necessary to loosen the nut on the positioning screw 552, readjust the position of the rectangular block 551 on the arc block 54, so that the rectangular block 551 can be inserted into the waist hole 12 on the switched flywheel 1, re-tighten the nut on the positioning screw 552, and repeat steps 2) and 3) to process again.

[0038] Embodiment 2

[0039] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that: 1) the end of the positioning screw 552 away from the rectangular block 551 is in contact with the positioning plate 51 .

[0040] The positioning screw 552 is arranged in this way so that the positioning screw 552 can be supported on the positioning plate 51. When the positioning screw 552 is locked and fixed to the arc block 54, the positioning screw 552 can provide support for the bottom of the arc block 54, making the arc block 54 more stable as a whole, further improving the stability of the entire positioning structure 5.

[0041] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A flywheel drilling mechanism, comprising a processing table, a vertical multi-axis drilling machine, an auxiliary drilling bracket and a positioning structure arranged on the processing table, characterized in that: The positioning structure includes a positioning plate, a central positioning column, an auxiliary positioning column and an auxiliary positioning block arranged on the side of the auxiliary positioning column, and the central positioning column and the auxiliary positioning column are both arranged on the positioning plate; the central positioning column is a conical column with a radius gradually increasing from top to bottom, and a strip protrusion is arranged on the side wall of the conical column, and the protrusion height of the strip protrusion relative to the conical surface of the central positioning column gradually decreases from top to bottom; an arc block is arranged on the top of the auxiliary positioning column, and an arc hole is opened on the arc block, and the auxiliary positioning block is slidably connected in the arc hole.

2. The flywheel punching mechanism according to claim 1, characterized in that: The height of the central positioning column is higher than that of the auxiliary positioning column.

3. The flywheel punching mechanism according to claim 2, characterized in that: The auxiliary positioning block comprises a rectangular block and a positioning screw, wherein the rectangular block is arranged at the end of the positioning screw, and the positioning screw is slidably connected in the arc hole.

4. The flywheel punching mechanism according to claim 3, characterized in that: One end of the positioning screw away from the rectangular block contacts the positioning plate.

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