Equipment for automatically cutting off hub stock column and punching hub

Abstract

The utility model relates to equipment for automatically cutting off a hub stock column and punching a hub, which comprises an equipment body, a clamping mechanism capable of stably clamping the hub and a punching mechanism coaxial with the clamping mechanism are arranged on the equipment body, and the punching mechanism can stably slide in the horizontal direction relative to the equipment body. The equipment body is further provided with a cutting mechanism capable of cutting a material column of the hub, and the cutting mechanism can stably slide in the vertical direction relative to the equipment body. The punching mechanism is used for automatically punching the hub, then the cutting mechanism is used for automatically cutting off the stock column of the hub, manual participation is not needed in the whole process, and the automation degree of production is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, specifically to a device for automatically cutting off wheel hub material pillars and drilling holes in wheel hubs. Background Technology

[0002] Wheel hubs have sprues present after the casting or forging blank is formed. During the casting process, molten metal fills the mold cavity through the gating system, and after cooling and solidification, excess sprue structures are formed in the center or edge of the wheel hub. The sprue is a channel for metal flow and also a compensating part for process shrinkage, but it is a redundant structure in the finished product and needs to be removed in subsequent processes.

[0003] Cutting the wheel hub insert is a necessary step, primarily to remove excess material to ensure the wheel hub's geometric accuracy and structural integrity. Residual inserts can cause unevenness in the center area of ​​the wheel hub, affecting the positioning of subsequent machining reference surfaces and potentially causing stress concentration issues. Cutting is typically done using a CNC lathe or specialized milling equipment. The insert is separated from the wheel hub body through precise tool path control, and the cut surface is then ground to remove burrs and residual protrusions. Subsequent drilling processes, including the machining of center holes and bolt holes, are core components for realizing the wheel hub's functionality. These processes collectively ensure that the wheel hub meets mechanical performance, assembly accuracy, and safety standards.

[0004] Application announcement number CN120002456A discloses a drilling device for automobile wheel hub production. According to its specification and drawings, the solution is as follows: when the drill rod contacts the wheel hub, the adjusting mechanism drives the inner cylinder to move axially relative to the outer cylinder, increasing the opening of the connecting hole, thereby ensuring sufficient supply of cutting fluid during the drilling process. After the drilling depth reaches the rated value, the adjusting mechanism closes the connecting pipe.

[0005] The solution still has certain limitations in the wheel hub processing: 1. The equipment can only perform the drilling process on the wheel hub, and cannot simultaneously remove the material column before drilling, which reduces production efficiency; 2. There is no fixture to stably hold the wheel hub, which makes the wheel hub prone to displacement during the processing, affecting the processing accuracy. Summary of the Invention

[0006] This invention addresses the problems existing in the die-casting process by providing an automatic device for cutting off wheel hub sprues and drilling holes in the wheel hub. The device utilizes a drilling mechanism to automatically drill holes in the wheel hub and a cutting mechanism to automatically cut off the wheel hub sprues. The entire process requires no manual intervention, thus improving the automation level of production.

[0007] The objective of this invention is achieved through the following technical solution: an automatic device for cutting off wheel hub material columns and drilling holes in wheel hubs, comprising a device body, wherein the device body is provided with a clamping mechanism capable of stably clamping the wheel hub and a drilling mechanism coaxially arranged with the clamping mechanism, the drilling mechanism being able to slide smoothly in the horizontal direction relative to the device body, and the device body is also provided with a cutting mechanism capable of cutting the wheel hub material columns, the cutting mechanism being able to slide smoothly in the vertical direction relative to the device body.

[0008] Preferably, the clamping mechanism includes a clamping support base plate, a clamping support side plate, a corner cylinder, and an elastic pin assembly. The clamping support base plate is disposed on the surface of the equipment body, and the clamping support side plate is disposed on the surface of the clamping support base plate. A plurality of corner cylinders for pressing the wheel hub rim are installed on one side of the clamping support side plate, and an elastic pin assembly is installed in the middle. The piston rod of each corner cylinder passes through the interior of the clamping support side plate to the other side of the clamping support side plate. The elastic pin assembly can be locked in the pre-fill hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert with a drilling allowance.

[0009] Preferably, the elastic ejector pin assembly includes an ejector pin support, a guide sleeve, a guide shaft, a rectangular spring, and a positioning ejector pin. The surface of the clamping support side plate is provided with ejector pin clearance holes. The ejector pin support is installed on one side of the clamping support side plate. The guide sleeve is installed on the ejector pin support. The guide shaft is slidably connected inside the guide sleeve. The guide sleeve is also provided with a rectangular spring that fits against one end of the guide shaft. One end of the guide shaft extends outward through the guide sleeve and is provided with a positioning ejector pin. The positioning ejector pin can be locked in the pre-fill hole on one side of the wheel hub or on the outer periphery of the wheel hub brake insert with a drilling allowance.

[0010] Preferably, the drilling mechanism includes a lead screw drive module, a drilling support frame, a drilling machine, a first transmission gear, a second transmission gear, and a transmission belt. The surface of the moving platform on the lead screw drive module is provided with a drilling support frame. The drilling machine is installed inside the drilling support frame. The end of the power input shaft of the drilling machine is connected to the first transmission gear. A first drive motor is installed on the top of the drilling support frame. The end of the rotating shaft of the first drive motor is equipped with a second transmission gear. The first transmission gear and the second transmission gear are connected by a transmission belt.

[0011] Preferably, the cutting mechanism includes a vertical sliding support frame, a lead screw drive module, a sawing motor bracket, a dovetail slide, a second drive motor, and a saw blade. The vertical sliding support frame is vertically mounted on the surface of the equipment body. The lead screw drive module is provided on the side of the vertical sliding support frame. The surface of the moving platform on the lead screw drive module is provided with a sawing motor bracket. The bottom of the sawing motor bracket is equipped with a dovetail slide. The second drive motor is connected to the lower part of the adjusting plate on the dovetail slide. The saw blade is connected to the end of the rotating shaft of the second drive motor.

[0012] Preferably, the screw drive module includes a slide base plate, a first slide rail, a screw support member, a first screw, a third drive motor, a slide block, and a slider. The slide base plate is disposed on the surface of the equipment body or on the side of the vertical sliding support frame. The surface of the slide base plate is provided with a plurality of first slide rails and a plurality of screw support members. A slider is slidably connected to the surface of the first slide rail. The first screw is rotatably connected inside the screw support member. The first screw is driven by a third drive motor on one side. A slide block is drively connected to the surface of the first screw. A moving platform is mounted on the surface of the slide block and the slider.

[0013] Preferably, the surface of the equipment body is provided with a side frame composed of several sheet metal profiles connected to each other. A chip groove is provided on the surface of the equipment body below the clamping mechanism. The chips on the surface of the clamping mechanism fall through the chip groove into the waste collection groove at the bottom of the equipment body. This setting is to facilitate workers to collect and clean up the waste generated during drilling and cutting.

[0014] Preferably, a lifting cylinder is provided on the inner side of the side panel frame, and a lifting door is provided on one side of the side panel frame that can slide up and down. The piston rod end of the lifting cylinder is connected to the lifting door. The lifting door can prevent debris from splashing onto workers or the outside during the processing.

[0015] Compared with the prior art, this utility model has the following advantages: 1. The automatic drilling of the wheel hub is completed by the drilling mechanism, and the automatic cutting of the wheel hub material column is completed by the cutting mechanism. The whole process does not require manual intervention, which improves the automation level of production; 2. For clamping the wheel hub, in order to fit against the side of the clamping support plate to obtain stable support force, the center of the wheel hub can be slowly moved to the end of the positioning pin. After each corner cylinder presses the wheel rim of the wheel hub, the wheel hub can be located in the middle of the side of the clamping support plate. This ingenious design optimizes the position of the wheel hub during the processing and improves the processing accuracy. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a perspective view of the present invention after the side panel frame has been removed;

[0018] Figure 3 This is a partial perspective view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the elastic ejector pin assembly of this utility model;

[0020] Figure 5 This is a partial perspective view of the present invention;

[0021] Figure 6 This is a perspective view of the present utility model;

[0022] Figure 7 This is a structural diagram of the vertical lead screw transmission module of this utility model;

[0023] Figure 8 This is a structural diagram of the vertical lead screw transmission module of this utility model;

[0024] Figure 9 This is a schematic diagram of the wheel hub of this utility model.

[0025] Markings in the diagram: 1. Equipment body; 11. Debris trough; 2. Clamping mechanism; 21. Clamping support base plate; 22. Clamping support side plate; 23. Corner cylinder; 24. Elastic ejector pin assembly; 241. Ejector pin support seat; 242. Guide sleeve; 243. Guide shaft; 244. Rectangular spring; 245. Positioning ejector pin; 3. Drilling mechanism; 31. Drilling support frame; 32. Drilling machine; 33. First transmission gear; 34. Transmission belt; 35. ... 4. Transmission gear; 41. Cutting mechanism; 42. Vertical sliding support frame; 43. Sawing motor bracket; 44. Dovetail groove slide table; 45. Second drive motor; 46. Saw blade; 57. Screw drive module; 58. Slide table base plate; 59. First slide rail; 50. Screw support component; 51. Slider; 52. First screw; 53. Slide block; 54. First screw; 55. Slide seat; 56. Moving platform; 57. Third drive motor; 68. Side plate frame; 69. Lifting cylinder; 60. Lifting door. Detailed Implementation

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0027] like Figure 1 , Figure 2 and Figure 6As shown, an automatic wheel hub material cutting and wheel hub drilling device includes a device body 1. The surface of the device body 1 is provided with a side plate frame 6 composed of several interconnected sheet metal profiles. A lifting cylinder 61 is provided on the inner side of the side plate frame 6. A lifting door 62 is provided on one side of the side plate frame 6 that can slide up and down. The piston rod end of the lifting cylinder 61 is connected to the lifting door 62. The lifting door 62 is moved vertically by the rising or falling of the piston rod of the lifting cylinder 61.

[0028] Openings of varying sizes can be made on the side frame 6 to facilitate the avoidance of other mechanisms and to allow users to observe whether the equipment is operating normally. Since a large amount of debris will be generated during the subsequent processing of the wheel hub, a lifting door 62 is provided to prevent debris from flying into workers or to the outside during processing.

[0029] Please continue to refer to this. Figure 3 and Figure 4 The device body 1 is equipped with a clamping mechanism 2 capable of stably clamping the wheel hub. The clamping mechanism 2 includes a clamping support base plate 21, a clamping support side plate 22, a corner cylinder 23, and an elastic pin assembly 24. The clamping support base plate 21 is disposed on the surface of the device body 1, and the clamping support side plate 22 is disposed on the surface of the clamping support base plate 21. Several corner cylinders 23 for pressing the wheel hub rim are installed on one side of the clamping support side plate 22, and an elastic pin assembly 24 is installed in the middle. The piston rod of each corner cylinder 23 passes through the interior of the clamping support side plate 22 to the other side of the clamping support side plate 22. The elastic pin assembly 24 can be locked in the pre-fill hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert with a drilling allowance.

[0030] An external industrial robot clamps the wheel hub and places it on the side of the clamping support side plate 22. During placement, the reaction force generated by the elastic pin assembly 24 continuously guides the wheel hub toward the center. Subsequently, each corner cylinder 23 presses the rim of the wheel hub, allowing the wheel hub to be located in the center of the side of the clamping support side plate 22.

[0031] The surface of the device body 1 has a debris groove 11 below the clamping mechanism 2. Debris from the surface of the clamping mechanism 2 passes through the debris groove 11 and falls into the waste collection groove at the bottom of the device body 1.

[0032] In this embodiment, the elastic ejector pin assembly 24 includes an ejector pin support 241, a guide sleeve 242, a guide shaft 243, a rectangular spring 244, and a positioning ejector pin 245. The surface of the clamping support base plate 21 is provided with ejector pin clearance holes. The ejector pin support 241 is installed on one side of the clamping support base plate 21. The guide sleeve 242 is installed on the ejector pin support 241. The guide shaft 243 is slidably connected inside the guide sleeve 242. The rectangular spring 244 is also provided inside the guide sleeve 242 and fits against one end of the guide shaft 243. One end of the guide shaft 243 extends outward through the guide sleeve 242 and is provided with a positioning ejector pin 245. The positioning ejector pin 245 can be locked in the pre-fill hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert with a drilling allowance.

[0033] When the corner cylinder 23 is not pressed against the wheel hub: the elastic force generated by the rectangular spring 244 can push the guide shaft 243 to the left, so that the positioning pin 245 at the end of the guide shaft 243 can pass through the pin clearance hole on the surface of the clamping support side plate 22 to the outside.

[0034] During the process of pressing the hub by the corner cylinder 23: in order to fit the side of the clamping support plate 22 and obtain stable support force, the center of the hub can slowly move to the end of the positioning pin 245. During the continuous pressing process, the rectangular spring 244 will also be continuously pressed, causing the guide shaft 243 to slide inside the guide sleeve 242.

[0035] Please refer to Figure 5 , Figure 8 and Figure 9 In this embodiment, the lead screw transmission module 5 includes a slide base plate 51, a first slide rail 52, a lead screw support 53, a first lead screw 55, a third drive motor 58, a slide block 56, and a slider 54. The surface of the slide base plate 51 is provided with a plurality of first slide rails 52 and a plurality of lead screw support 53. The slider 54 is slidably connected to the surface of the first slide rail 52. The first lead screw 55 is rotatably connected inside the lead screw support 53. The first lead screw 55 is driven by the third drive motor 58 on one side. The slide block 56 is driveably connected to the surface of the first lead screw 55. A moving platform 57 is installed on the surface of the slide block 56 and the slider 54.

[0036] When the moving platform 57 needs to perform linear motion, the shaft of the third drive motor 58 drives the first lead screw 55 to rotate. As the first lead screw 55 rotates, it causes the slide block 56 to move. The slide block 56 simultaneously drives the moving platform 57 to move. During the movement of the moving platform 57, the slider 54 slides relative to the first slide rail 52.

[0037] Please refer to Figure 3 and Figure 5The device body 1 is provided with a punching mechanism 3 that is coaxially arranged with the clamping mechanism 2. The punching mechanism 3 can slide smoothly in the horizontal direction relative to the device body 1.

[0038] The drilling mechanism 3 includes a lead screw drive module 5, a drilling support frame 31, a drilling machine 32, a first transmission gear 33, a second transmission gear 35, and a transmission belt 34. The surface of the moving platform 57 on the lead screw drive module 5 is provided with the drilling support frame 31. The drilling machine 32 is installed inside the drilling support frame 31. The end of the power input shaft of the drilling machine 32 is connected to the first transmission gear 33. The top of the drilling support frame 31 is equipped with a first drive motor. The end of the rotating shaft of the first drive motor is equipped with the second transmission gear 35. The first transmission gear 33 and the second transmission gear 35 are connected by the transmission belt 34.

[0039] The drilling mechanism 3 moves left and right using a moving platform 57. During the drilling process, the shaft of the first drive motor drives the second transmission gear 35 to rotate. The first drive motor is not shown in the figure. The second transmission gear 35 drives the first transmission gear 33 to rotate via a transmission belt 34. The power generated by the first transmission gear 33 drives the drilling machine 32 to work through the power input shaft of the drilling machine 32.

[0040] As the mobile platform 57 moves continuously to the right, the drill bit at the end of the drilling machine 32 can drill a hole in the center of the clamped hub, thus completing the automatic drilling function.

[0041] Please continue to refer to this. Figure 3 The slide base plate 51 is set on the surface of the equipment body 1 or the side of the vertical sliding support frame 41. The equipment body 1 is also provided with a cutting mechanism 4 that can cut the material column of the wheel hub. The cutting mechanism 4 can slide smoothly in the vertical direction relative to the equipment body 1.

[0042] The cutting mechanism 4 includes a vertical sliding support frame 41, a lead screw drive module 5, a sawing motor bracket 42, a dovetail slide 43, a second drive motor 44, and a saw blade 45. The vertical sliding support frame 41 is vertically installed on the surface of the equipment body 1. The lead screw drive module 5 is provided on the side of the vertical sliding support frame 41. The surface of the moving platform 57 on the lead screw drive module 5 is provided with the sawing motor bracket 42. The bottom of the sawing motor bracket 42 is equipped with the dovetail slide 43. The second drive motor 44 is connected to the lower part of the adjusting plate on the dovetail slide 43. The end of the rotating shaft of the second drive motor 44 is connected to the saw blade 45.

[0043] The entire cutting mechanism 4 uses the moving platform 57 to move vertically. During the cutting of the wheel hub material column, the shaft of the second drive motor 44 drives the saw blade 45 to rotate, and the saw blade 45 can cut off the material column of the wheel hub.

[0044] Working principle and usage of this utility model:

[0045] The industrial robot clamps the wheel hub and places it on the side of the clamping support plate 22. During placement, in order to conform to the side of the clamping support plate 22 and obtain stable support, the pre-filled hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert can slowly move to the end of the positioning pin 245. During the continuous pressing process, the rectangular spring 244 is also continuously compressed, causing the guide shaft 243 to slide inside the guide sleeve 242. Subsequently, after each corner cylinder 23 presses the wheel rim of the wheel hub, the wheel hub can be located in the middle of the side of the clamping support plate 22.

[0046] Next, the entire cutting mechanism 4 moves vertically using the moving platform 57. During the cutting of the wheel hub material column, the shaft of the second drive motor 44 drives the saw blade 45 to rotate, and the saw blade 45 can cut off the material column of the wheel hub.

[0047] Finally, the drilling mechanism 3 moves left and right using the moving platform 57. During the drilling process, the shaft of the first drive motor drives the second transmission gear 35 to rotate, and the second transmission gear 35 drives the first transmission gear 33 to rotate via the transmission belt 34. The power generated by the first transmission gear 33 drives the drilling machine 32 to work through the power input shaft of the drilling machine 32.

[0048] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automatic device for cutting off wheel hub protrusions and drilling holes in wheel hubs, comprising a device body (1), characterized in that, The equipment body (1) is provided with a clamping mechanism (2) that can stably clamp the wheel hub and a drilling mechanism (3) that is coaxially arranged with the clamping mechanism (2). The drilling mechanism (3) can slide smoothly in the horizontal direction relative to the equipment body (1). The equipment body (1) is also provided with a cutting mechanism (4) that can cut the material column of the wheel hub. The cutting mechanism (4) can slide smoothly in the vertical direction relative to the equipment body (1).

2. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 1, characterized in that, The clamping mechanism (2) includes a clamping support base plate (21), a clamping support side plate (22), a corner cylinder (23), and an elastic pin assembly (24). The clamping support base plate (21) is disposed on the surface of the equipment body (1), and the clamping support side plate (22) is disposed on the surface of the clamping support base plate (21). A plurality of corner cylinders (23) for pressing the wheel hub rim are installed on one side of the clamping support side plate (22), and an elastic pin assembly (24) is installed in the middle. The piston rod of each corner cylinder (23) passes through the interior of the clamping support side plate (22) to the other side of the clamping support side plate (22). The elastic pin assembly (24) can be locked in the pre-fill hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert and leave drilling allowance.

3. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 2, characterized in that, The elastic ejector pin assembly (24) includes an ejector pin support (241), a guide sleeve (242), a guide shaft (243), a rectangular spring (244), and a positioning ejector pin (245). The surface of the clamping support side plate (22) is provided with ejector pin clearance holes. The ejector pin support (241) is installed on one side of the clamping support side plate (22). The guide sleeve (242) is installed on the ejector pin support (241). The guide shaft (243) is slidably connected inside the guide sleeve (242). The rectangular spring (244) is also provided inside the guide sleeve (242) and fits against one end of the guide shaft (243). One end of the guide shaft (243) extends outward through the guide sleeve (242) and is provided with a positioning ejector pin (245). The positioning ejector pin (245) can be locked in the pre-fill hole on one side of the wheel hub or the outer periphery of the wheel hub brake insert and leave drilling allowance.

4. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 2, characterized in that, The drilling mechanism (3) includes a screw drive module (5), a drilling support frame (31), a drilling machine (32), a first transmission gear (33), a second transmission gear (35), and a transmission belt (34). The surface of the moving platform (57) on the screw drive module (5) is provided with a drilling support frame (31). The drilling machine (32) is installed inside the drilling support frame (31). The end of the power input shaft of the drilling machine (32) is connected to the first transmission gear (33). The top of the drilling support frame (31) is equipped with a first drive motor. The end of the rotating shaft of the first drive motor is equipped with a second transmission gear (35). The first transmission gear (33) and the second transmission gear (35) are connected by a transmission belt (34).

5. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 4, characterized in that, The cutting mechanism (4) includes a vertical sliding support frame (41), a screw drive module (5), a sawing motor bracket (42), a dovetail slide (43), a second drive motor (44), and a saw blade (45). The vertical sliding support frame (41) is vertically installed on the surface of the equipment body (1). The screw drive module (5) is provided on the side of the vertical sliding support frame (41). The surface of the moving platform (57) on the screw drive module (5) is provided with the sawing motor bracket (42). The bottom of the sawing motor bracket (42) is equipped with the dovetail slide (43). The second drive motor (44) is connected to the lower part of the adjusting plate on the dovetail slide (43). The end of the shaft of the second drive motor (44) is connected to the saw blade (45).

6. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 4 or 5, characterized in that, The lead screw transmission module (5) includes a slide base plate (51), a first slide rail (52), a lead screw support (53), a first lead screw (55), a third drive motor (58), a slide block (56), and a slider (54). The slide base plate (51) is disposed on the surface of the equipment body (1) or on the side of the vertical sliding support frame (41). The surface of the slide base plate (51) is provided with a plurality of first slide rails (52) and a plurality of lead screw support members (53). The surface of the first slide rail (52) is slidably connected to the slider (54). The inside of the lead screw support member (53) is rotatably connected to the first lead screw (55). The first lead screw (55) is driven by the third drive motor (58) on one side. The surface of the first lead screw (55) is connected to the slide block (56). The surface of the slide block (56) and the slider (54) is equipped with a moving platform (57).

7. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 1, characterized in that, The surface of the equipment body (1) is provided with a side frame (6) composed of several sheet metal profiles connected to each other. The surface of the equipment body (1) is provided with a chip groove (11) below the clamping mechanism (2). The chips on the surface of the clamping mechanism (2) fall through the chip groove (11) into the waste collection groove at the bottom of the equipment body (1).

8. The equipment for automatically cutting off wheel hub protrusions and drilling holes in wheel hubs according to claim 7, characterized in that, The inner side of the side panel frame (6) is provided with a lifting cylinder (61), and a lifting door (62) is provided on one side of the side panel frame (6) that can slide up and down. The piston rod end of the lifting cylinder (61) is connected to the lifting door (62).

Images