CN114029745B - Processing equipment suitable for rims with different offsets - Google Patents

Abstract

The invention discloses processing equipment suitable for rims with different offset distances, wherein the top surface of a machine base box A is connected with a rotary table A, the top surface of the rotary table A is sequentially coaxially provided with a supporting shaft A, an annular bulge A and a fixed clamping ring A for fixing the rims from inside to outside, the inner wall of the annular bulge A is matched with the outer side wall of the supporting shaft A, the top surface of the machine base box A and one side of the rotary table A are also provided with a rotary knife rest A, the rotary knife rest A vertically moves up and down through a sliding seat A, the rotary knife rest A horizontally moves along the sliding seat A, and the side end surfaces of the rotary knife rest A are respectively correspondingly provided with a forming wheel and a cutting knife; and a flaring die of the rim standard part is coaxially arranged above the base box A and right above the turntable A, and is vertically movably connected through a hydraulic cylinder of the top frame. According to the structure, the processing equipment suitable for rims with different offset distances can greatly improve the production applicability of rim standard parts, further improve the flexibility of hub production and reduce the production cost of hubs.

Description

Processing equipment suitable for rims with different offsets

Technical field

The invention relates to a technical field suitable for processing and producing rims with different offsets, and specifically relates to a processing equipment suitable for rims with different offsets.

Background technique

The wheel hub is the rotating part of the wheel core that is connected to the inner profile of the tire through a column, that is, the metal component mounted on the shaft that supports the center of the tire. Also called rims, steel rims, wheels, and tire bells. There are many types of wheel hubs depending on diameter, width, molding method, and material.

The offset, commonly known as the ET value, refers to the distance between the wheel hub bolt fixing surface and the geometric centerline (hub cross-section centerline). To put it simply, it is the difference between the center screw fixing seat of the wheel hub and the center point of the entire rim. In layman's terms, In other words, after modification, the wheel hub will retract inward or protrude outward. For ordinary cars, the ET value is positive, but for a few vehicles and some jeeps, it is negative. For example, if the offset value of a car is 40, if it is replaced with ET45 wheels, it will visually shrink into the wheel arches than the original wheels. Of course, the ET value not only affects visual changes, it is also related to the vehicle's steering characteristics and wheel alignment angle. An excessively large offset value may cause abnormal tire wear, easy wear of the bearings, or even failure at all. Normal installation (the brake system and the wheel hub rub against each other and cannot rotate normally). In most cases, wheels of the same brand and style will provide different ET values to choose from. The current production methods of wheel hubs are generally gravity casting, forging and low-pressure precision casting. These production methods are all integrated production. For wheels with different ET values, each wheel hub with different ET values requires a production mold, which leads to the production enterprises The cost is relatively high; if manufacturing companies want to save production costs, they must try to standardize production as much as possible. However, wheel hub manufacturers require different wheel spoke styles and hub offsets for each customer, so in order to save production costs At present, many wheel hub manufacturers have produced the spokes and rims separately and then assembled them into complete wheel hubs. Although this method can reduce a certain production cost, due to the different ET values of the wheel hubs, different rim molds are still required for production, resulting in production Costs are still higher. Moreover, the ET value is different from the diameter size of the wheel hub. The diameter size of the wheel hub is standardized, so the spokes can be produced in advance according to the corresponding hub diameter size, and then they can be directly spliced and fixed with the corresponding rim; and the ET value is not a standard value. , the requirements of different customers are also different, which means that rims with a certain diameter size and different ET values cannot be produced in large quantities at one time, and each size of rim with different ET values requires a corresponding mold, resulting in the use of molds The rate is not high and the production cost is still high. How to reduce the cost of producing rims with different ET values is a technical problem that those skilled in the art have always wanted to solve.

Contents of the invention

The object of the present invention is to overcome the shortcomings of the existing technology and provide a processing equipment suitable for rims with different offsets. Through the production method of the present invention, the production applicability of rim cylinder blank standard parts can be greatly improved, thereby making In the early stage, the production company can mass-produce several types of standard rim cylinder blanks with basic sizes and specifications, and then process them into rims with different offsets according to the customer's requirements, and splice the corresponding processed rims through mixing. Friction welding is used for sealing to produce rims with different offsets, which are then spliced and fixed with the wheel spokes to produce wheel hubs with different offsets, thereby improving the flexibility of wheel hub production and reducing the production cost of the wheel hub; according to the needs of production For the rim size of the wheel hub, select the corresponding rim cylinder blank standard part. When the diameter of the rim is smaller than the diameter of the rim blank or the elongation of the rim blank cannot be expanded, the rim blank is used as the tread surface and processed through the spinning process. To produce the tire groove; when the diameter of the rim is larger than the diameter of the rim blank or the elongation of the rim blank meets the expansion requirement, the rim blank is used as the tire groove and the tread is processed through the stamping process; by being suitable for different offsets The rim processing equipment enables spin forming and cutting of rim standard parts with only one clamping, which improves the processing efficiency and ensures the processing accuracy of the rim; through the processing equipment suitable for different offset rims The support shaft A that can be adjusted up and down enables one-time processing of the rims required for wheel hubs with different offsets, which improves the applicability of processing equipment suitable for rims with different offsets; through the processing equipment suitable for rims with different offsets The cutting process in the rim standard part can not only cut the end face of the end away from the rim 5 flush, but also make the cut rim standard part conform to the corresponding offset of the wheel hub to be produced, thereby ensuring that subsequent rim standard parts After the flaring process, the required rim can be obtained directly.

The technical solutions adopted by the present invention are:

The production method of wheel rims includes the following steps:

1) Process an annular step structure on one end of the standard part of the rim barrel blank to form a tire mounting groove and a tread mounting surface on one end of the standard part of the rim barrel blank;

2) Turn the barrel opening at the end where the tread surface is located, which is processed from the standard part of the rim barrel blank, outwards to form an annular flange for processing the rim;

3) Curl the annular flange toward the side of the tire mounting groove of the standard part of the rim cylinder blank until the flange contacts and resists the tire mounting surface to form a rim, thereby obtaining the rim standard part;

4) Then shape the taper of the tire groove wall between the tire groove and the tread surface to meet the processing requirements of the rim, and process a convex ring outward at the connection between the tire groove wall and the tread surface;

5) According to the offset requirements of the wheel hub, cut the edge of the tire mounting groove of the rim standard part away from the rim, so that the edge of the tire mounting groove away from the rim is flush, and the axial length of the tire mounting groove meets the mounting requirements. The machining allowance for the tire tread at the end of the tire groove away from the rim and the other end;

6) Process an annular step structure at the end of the tire groove away from the rim to form a tread installation surface at the other end of the rim standard part;

7) Then shape the taper of the tire groove wall between the tire groove and the tread surface at the end away from the rim to meet the processing requirements of the rim, and adjust the taper of the tire groove wall and the tread surface at the end away from the rim. A raised ring is machined outward from the joint to obtain the rim.

A further improvement plan of the present invention is that in the step 1), one end of the standard part of the rim barrel blank is processed by a rotating compression port or a stamping expansion to form an annular step structure to form a tire mounting groove and one end of the standard part of the rim barrel blank. of tread.

A further improvement of the present invention is that in step 2), the outer edge of the annular flange is trimmed to ensure that the outer edge of the annular flange is coaxial with the standard part of the rim barrel blank.

A further improvement of the present invention is that in step 6), the end of the tire mounting groove away from the rim is punched and expanded to form an annular step structure to form a tire mounting surface at the other end of the rim standard part.

The above method is used to produce processing equipment suitable for rims with different offsets, including a base box A. The center of the top surface of the base box A is connected to a turntable A that rotates horizontally around a vertical axis. The top surface of the turntable A is A support shaft A, an annular protrusion A and a fixing clamp ring A for fixing the rim of the rim standard part are coaxially arranged in sequence from the inside to the outside. The inner wall of the annular protrusion A is in contact with the support shaft A. The outer side walls match. The top surface of the base box A and one side of the turntable A are also provided with a rotating tool holder A. The rotating tool holder A passes through the slide A along the stand A fixed to the top surface of the base box A. The rotating tool holder A moves vertically up and down, and the rotating tool holder A moves horizontally along the slide seat A. The side end surfaces of the rotating tool holder A are respectively provided with forming wheels and cutting knives. The machine base box A is provided with a turntable A. Driving device A; above the base box A and directly above the turntable A, there is a flared die for the rim standard part coaxially. The flared die is movable up and down through a hydraulic cylinder fixed to the top frame. The top frame is fixedly connected to the rear side of the top surface of the base box through a support stand.

A further improvement of the present invention is that the driving device A includes a first driving motor A fixed in the chassis box A, and the first driving motor A is connected to the same through a first reduction gearbox A fixed in the chassis box A. The axis is fixed to the shaft sleeve A at the bottom of the turntable A for transmission connection. The base box A is also fixedly connected with a third drive motor A. The third drive motor A drives the slide A to move up and down along the stand A. The end of the slide A away from the turntable A is also fixedly connected to a fourth drive motor A. The fourth drive motor A drives the rotating tool holder A to move horizontally along the slide A.

A further improvement of the present invention is that the top surface of the turntable A corresponds to the lifting groove A formed in the annular protrusion A to match the support shaft A, and a threaded groove A is provided at the axis center of the bottom surface of the support shaft A. The bottom surface of the support shaft A is also provided with a plurality of guide grooves A. The lifting groove A is fixedly connected with a plurality of guide rods A that match the guide grooves A. The bottom axis of the lifting groove A is provided with a plurality of guide rods A. The shaft rod A matches the inner wall of the shaft sleeve A. The top surface of the shaft rod A is fixedly connected to the threaded groove A and is fixedly connected to the shaft center. The shaft rod A passes downward through the shaft sleeve in sequence. A and the first reduction gearbox A are connected to the second drive motor A through the second reduction gearbox A fixed in the base box A. The second drive motor A is fixed in the base box A. The second drive motor A is fixed in the base box A. Reduction box A is equipped with a clutch device A.

A further improvement of the present invention is that the top surface of the support shaft A is coaxially provided with an annular groove A, and the projection of the connection hole provided by the annular connecting edge facing the support shaft A is located in the annular groove A.

A further improvement of the present invention is that the guide rod A is fixedly connected to the lifting groove A through threads and is evenly distributed with the axis of the lifting groove A as the center.

A further improvement plan of the present invention is that the groove depth of the guide groove A is greater than or equal to the height difference between the top of the guide rod A and the bottom of the lifting groove A, and the groove depth of the threaded groove A is greater than or equal to the height difference between the top of the threaded rod A and the lifting groove A. The height difference between the bottom of groove A and the height difference between the top of guide rod A and the bottom of lifting groove A is greater than the height difference between the top of threaded rod A and the bottom of lifting groove A.

A further improvement of the present invention is that when the support shaft A moves downward along the lifting groove A and the guide rod A to the maximum stroke, the top surface of the support shaft A is higher than the top of the annular protrusion A.

A further improvement of the present invention is that the shaft sleeve A is rotationally connected to the base box A through a bearing A.

A further improvement of the present invention is that the rotating tool holder A moves horizontally along the chute A provided with the slide seat A.

A further improvement of the present invention is that the fixed clamp ring A clamps and fixes the rim of the rim standard part and the turntable A through the first connecting bolt A. There are multiple first connecting bolts A, and the turntable A is The axis is evenly distributed in the center.

A further improvement of the present invention is that the top surface of the annular protrusion A is a conical arc surface with an outer diameter decreasing in the direction from bottom to top, and the conical arc surface is in contact with the tire mounting groove of the rim standard part. Tank walls match.

A further improvement of the present invention is that the telescopic rod of the hydraulic cylinder passes downward through the through hole A provided in the top frame and is fixedly connected to the top surface of the expanded die, and the top surface of the expanded die is also fixedly connected. There is a guide rod B arranged vertically, and the guide rod B passes upward through the guide hole provided in the top frame.

The beneficial effects of the present invention are:

First, the processing equipment of the present invention is suitable for rims with different offsets. Through the production method of the present invention, the applicability of the production of standard parts of the rim barrel blank can be greatly improved, so that the production enterprise can mass-produce several types of basic sizes in the early stage. The standard parts of the rim barrel blanks are then processed into rims with different offsets according to the customer's requirements, and the corresponding processed rims are spliced and then sealed through friction stir welding to produce different offsets. The rim is then spliced and fixed with the wheel spokes to produce wheel hubs with different offsets, thereby improving the flexibility of wheel hub production and reducing the production cost of the wheel hub.

Second, the processing equipment of the present invention suitable for rims with different offsets selects corresponding rim cylinder blank standard parts according to the rim size of the wheel hub to be produced. When the diameter of the rim is smaller than the diameter of the rim blank or the elongation of the rim blank When the expansion cannot be carried out, the rim blank is used as the tread surface and the tire groove is processed through the spinning process; when the diameter of the rim is larger than the diameter of the rim blank or the elongation of the rim blank meets the expansion requirement, the rim blank is used As a tire groove, the tread is processed through stamping process.

Thirdly, the processing equipment of the present invention suitable for rims with different offsets, through the processing equipment suitable for rims with different offsets, realizes the spin forming and cutting processing of rim standard parts with only one clamping, which improves the processing efficiency. While improving efficiency, it also ensures the processing accuracy of the rim.

Fourth, the processing equipment of the present invention suitable for rims with different offsets can process the rims required for wheel hubs with different offsets in one go through the support shaft A that can be adjusted up and down in the processing equipment suitable for rims with different offsets. processing, improving the applicability of processing equipment suitable for rims with different offsets.

Fifth, the processing equipment of the present invention suitable for rims with different offsets can not only cut the end face of the rim standard part away from the rim 5 flush through the cutting processing of the processing equipment suitable for rims with different offsets, but also can make the end face of the rim standard parts flush. The cut rim standard parts can also meet the corresponding offset of the wheel hub to be produced, thus ensuring that the required rim can be obtained directly after subsequent expansion processing of the rim standard parts.

Picture description:

Figure 1 is a schematic diagram of the production flow of the rim production method of the present invention.

Figure 2 is a schematic front cross-sectional view of the processing equipment suitable for rims with different offsets according to the present invention.

Figure 3 is a schematic front cross-sectional view of the processing equipment suitable for rims with different offsets according to the present invention.

Detailed ways:

As shown in Figure 1, the production method of rims includes the following steps:

1) Process an annular step structure at one end of the standard part of the rim barrel blank to form the tire mounting groove 2 and the tire mounting surface 4 at one end of the standard part of the rim barrel blank;

2) Turn the barrel mouth at the end where the tread surface 4 is processed out of the standard part of the rim cylinder body to form an annular ring for processing the annular flange of the rim;

3) Curl the annular flange toward the tire mounting groove 2 side of the rim cylinder blank standard part until the flange comes into contact with the tire mounting surface 4 and forms the rim 5, thereby obtaining the rim standard part;

4) Then shape the taper of the tire groove wall 3 between the tire groove 2 and the tread surface 4 to meet the rim processing requirements, and process the connection between the tire groove wall 3 and the tread surface 4 to form a convex shape. start ring 6;

5) According to the offset requirements of the wheel hub, cut the edge of the tire mounting groove 2 of the rim standard part away from the rim 5, so that the edge of the tire mounting groove 2 away from the rim 5 is flush, and the edge of the tire mounting groove 2 is flush. The axial length conforms to the machining allowance of the tire mounting surface 4 at one end of the tire mounting groove 2 away from the rim 5 and at the other end;

6) Process an annular step structure at one end of the tire groove 2 away from the rim 5 to form a tire mounting surface 4 at the other end of the rim standard part;

7) Then shape the taper of the tire mounting groove wall 3 between the tire mounting groove 2 and the tire mounting surface 4 at the end away from the rim 5 to meet the rim processing requirements, and adjust the tire mounting groove wall 3 and the end away from the rim 5 A raised ring 6 is processed outward from the connection point of the tread 4 to obtain the wheel rim 1.

In the step 1), one end of the rim cylinder blank standard part is processed by rotating compression or stamping expansion to form an annular step structure to form the tire mounting groove 2 and one end of the tire mounting surface 4 of the rim cylinder blank standard part.

In step 2), the outer edge of the annular flange is trimmed to ensure that the outer edge of the annular flange is coaxial with the standard part of the rim barrel blank.

In step 6), the end of the tire mounting groove 2 away from the rim 5 is punched and expanded to form an annular step structure to form the tire mounting surface 4 at the other end of the rim standard part.

As can be seen in Figure 2, the above method is used to produce processing equipment suitable for rims with different offsets, including a base box A101. The center of the top surface of the base box A101 is connected to a turntable A102 that rotates horizontally around a vertical axis. The top surface of the turntable A102 is sequentially and coaxially provided with a support shaft A103, an annular protrusion A122 and a fixing clamp ring A128 for fixing the rim 5 of the rim standard part along the direction from the inside to the outside. The annular protrusion A122 The inner wall matches the outer wall of the support shaft A103. The top surface of the machine base box A101 and one side of the turntable A102 is also provided with a rotating tool holder A104. The rotating tool holder A104 is fixed to the machine base box A101 along the slider A110. The stand A109 on the top surface moves vertically up and down, and the rotating tool holder A104 moves horizontally along the sliding seat A110. The side end surfaces of the rotating tool holder A104 are respectively provided with forming wheels 111 and cutting blades 112. The machine base The box A101 is provided with the driving device A of the turntable A102; above the base box A101 and directly above the turntable A102, there is a rim standard expansion die 130 coaxially arranged, and the expansion die 130 is fixed by The hydraulic cylinder 133 of the top frame 131 is movable up and down, and the top frame 131 is fixedly connected to the rear side of the top surface of the machine base box 101 through the support stand 132 .

The driving device A includes a first drive motor A107 fixed in the base box A101. The first drive motor A107 is fixed to the base box A101 through a first reduction gearbox A118 and a coaxial center fixed to the bottom of the turntable A102. The shaft sleeve A105 is connected by transmission. A third drive motor A116 is also fixedly connected to the base box A101. The third drive motor A116 drives the slider A110 to move up and down along the stand A109. The slider A110 is far away from the turntable A102. A fourth drive motor A117 is also fixedly connected to one end, and the fourth drive motor A117 drives the rotating tool holder A104 to move horizontally along the slide base A110.

The top surface of the turntable A102 corresponds to the lifting groove A121 formed in the annular protrusion A122 that matches the support shaft A103. The bottom surface of the support shaft A103 is provided with a threaded groove A124 at its axis. The bottom surface of the support shaft A103 is also A plurality of guide grooves A126 are provided. A plurality of guide rods A125 matching the guide grooves A126 are fixedly connected to the lifting groove A121. A shaft matching the inner wall of the shaft sleeve A105 is provided at the bottom axis of the lifting groove A121. The core rod A106 has a threaded rod A123 that matches the threaded groove A124 and is fixedly connected to the top surface of the axis rod A106 coaxially. The axis rod A106 passes downwards through the sleeve A105 and the first reduction box A118. The second reduction gearbox A119 is connected to the second drive motor A108 through the second reduction gearbox A119 fixed in the chassis box A101. The second drive motor A108 is fixed in the chassis box A101. The second reduction gearbox A119 is provided with a clutch device A120. .

The top surface of the support shaft A103 is coaxially provided with an annular groove A127, and the projection of the connection hole 8 provided on the annular connecting edge 7 facing the support shaft A103 is located in the annular groove A127.

The guide rods A125 are fixedly connected to the lifting groove A121 through threads, and are evenly distributed with the axis of the lifting groove A121 as the center.

The groove depth of the guide groove A126 is greater than or equal to the height difference between the top of the guide rod A125 and the bottom of the lifting groove A121. The groove depth of the threaded groove A124 is greater than or equal to the height between the top of the threaded rod A123 and the bottom of the lifting groove A121. The height difference between the top of the guide rod A125 and the bottom of the lifting groove A121 is greater than the height difference between the top of the threaded rod A123 and the bottom of the lifting groove A121.

When the support shaft A103 moves downward along the lifting groove A121 and the guide rod A125 to the maximum stroke, the top surface of the support shaft A103 is higher than the top of the annular protrusion A122.

The sleeve A105 is rotationally connected to the base box A101 through the bearing A130.

The rotary tool holder A104 moves horizontally along the slide groove A115 provided on the slide seat A110.

The fixed clamp ring A128 clamps and fixes the rim 5 of the rim standard part and the turntable A102 through the first connecting bolt A129. There are multiple first connecting bolts A129 and they are evenly distributed with the axis of the turntable A102 as the center. .

The top surface of the annular protrusion A122 is a conical arc surface with an outer diameter decreasing in the direction from bottom to top, and the conical arc surface matches the tire mounting groove wall 3 of the tire mounting groove 2 of the rim standard part.

The telescopic rod 134 of the hydraulic cylinder 133 passes downward through the through hole A135 of the top frame 131 and is fixedly connected to the top surface of the expansion die 130. The top surface of the expansion die 130 is also fixedly connected with a vertical A guide rod B136 is provided, and the guide rod B136 passes upward through the guide hole 137 provided on the top frame 131 .

As can be seen from Figure 3, before the processing equipment suitable for rims with different offsets processes the rim cylinder blank standard parts, the diameter of the rim cylinder blank standard part and the diameter of the tire groove 2 of the rim 1 to be produced are determined. Or compare the diameter of tread 4, and consider whether the elongation of the rim barrel standard part can be expanded; when the diameter of rim 1 is smaller than the diameter of the rim barrel standard part or the extension of the rim barrel standard part When the rate cannot be expanded, the standard part of the rim barrel blank is used as the tire mounting surface 4, and the tire mounting groove 2 is processed through the spinning process; when the diameter of the rim 1 is larger than the diameter of the standard part of the rim barrel blank or the rim barrel When the elongation rate of the body blank standard part meets the expansion requirement, the rim cylinder body standard part is used as the tire mounting groove 2, and the tread mounting surface 4 is processed through the stamping process; then the tread mounting surface 4 is moved away from the tire mounting groove through flanging equipment. 2. One side edge is flanged, and then the processed annular flange edge is cut to be coaxial with the standard part of the rim barrel blank, and then the annular flange is rolled inward toward the tread 4 side through a curling device. The edge is in contact with the tread surface 4 and forms the rim 5; then the hydraulic cylinder 133 drives the expansion die 130 to move upward to the maximum stroke, so that the rim standard parts set with the rim 5 processed can be placed in a matching annular shape. Raise the outside of A122 and make the rim 5 side of the rim standard part contact the top surface of the turntable A102. Then the fixing clamp ring A128 fixes the rim 5 of the rim standard part on the turntable A102 through the first connecting bolt A129; then clutch Device A120 drives the second transmission input shaft A in the second reduction box A119 that is transmission connected to the second drive motor A108 and the second transmission output shaft A that is drive connected to the axis rod A106, and passes through the second drive motor A108. The transmission of the second reduction gearbox A119 causes the axis rod A106 to drive the threaded rod A123 to rotate, thereby causing the support shaft A103 to move upward along the inner wall of the annular protrusion A122 and the guide rod A125 until the top surface of the support shaft A103 is flush with the top of the rim standard part. Even beyond the top of the rim standard part, the clutch device A120 then disconnects the second transmission input shaft A in the second reduction gearbox A119 that is transmission connected to the second drive motor A108 and the second transmission output shaft A that is transmission connected to the axis rod A106. Transmission connection; then the rotating tool holder A104 rotates to the side where the forming wheel 111 faces the rim standard part; then the first drive motor A107 is started, and the first reduction box A118 drives the shaft sleeve A105 and the rim standard part on the turntable A102 to rotate vertically The shaft rotates horizontally, and then the third driving motor A116 moves the forming wheel 111 on the rotating tool holder A104 upward to above the rim standard part, and the fourth driving motor A117 makes the forming wheel 111 on the rotating tool holder A104 move toward the rim standard part. Until the side edge of the forming wheel 111 facing the rim standard part has a certain spinning margin relative to the rim standard part; then the third drive motor A116 drives the forming wheel 111 on the rotating tool holder A104 to move downward until it contacts the rim standard part , thereby performing spin molding; after multiple spin moldings of the forming wheel 111, the inner wall of the rim standard part matches the outer wall of the support shaft A103 and the outer wall of the annular protrusion A122, and the rim standard part is positioned corresponding to the annular shape. The maximum outer diameter of the conical arc surface of the protrusion A122 forms a protruding ring 6, so that the tread surface 4 is located between the protruding ring 6 and the rim 5. At this time, the forming wheel 111 of the rotating tool holder A104 Under the action of the third driving device A116 and the fourth driving device A117, it moves upward to be higher than the rim standard part and located outside the rim standard part, and the first driving device A107 stops rotating.

Then the clutch device A120 drives the second transmission input shaft A in the second reduction box A119 that is drive-connected to the second drive motor A108 and the second drive output shaft A that is drive-connected to the shaft center rod A106, and through the second drive motor A108 is driven by the second reduction gearbox A119 to cause the axis rod A106 to drive the threaded rod A123 to rotate, so that the support shaft A103 can move up and down along the inner wall of the annular protrusion A122 and the guide rod A125 to the corresponding position according to the wheel hub offset value to be produced. position, and then the clutch device A120 disconnects the second transmission input shaft A in the second reduction box A119 that is transmission connected to the second drive motor A108 and the second transmission output shaft A that is transmission connected to the shaft rod A106; and The rotating tool holder A104 rotates until the cutting knife 112 faces the rim standard part. At this time, the cutting knife 112 is located above the rim standard part and the cutting knife 112 is located outside the rim standard part; then the first driving device A107 drives the rim on the turntable A102 again. The standard part rotates, and then the cutting blade 112 of the rotating tool holder A104 moves to the top edge position of the rim standard part under the action of the third driving device A116 and the fourth driving device A117, and is opposite to the top edge of the rim standard part (i.e., the installation The edge of the tire groove 2 away from the end of the rim 5) is cut to the horizontal plane; at this time, the cutting knife 112 of the rotating tool holder A104 moves upward under the action of the third driving device A116 and the fourth driving device A117 to be higher than the rim standard part, And located outside the rim standard part, the first driving device A107 stops rotating.

Then the first driving device A107 drives the rim standard part on the turntable A102 to rotate again, and the hydraulic cylinder 133 drives the expansion die 130 to move downward, so that the expansion die 130 expands the top end of the rim standard part; when the expansion die When the mouth mold 130 moves downward under the action of the hydraulic cylinder 133 to contact the top surface of the support shaft A103, the top end of the rim standard part also forms the tire groove wall 3 and the tread surface 4; then the rotating tool holder A104 rotates to the side of the forming wheel 111 facing the rim standard part; then the first drive motor A107 is started, and the rim standard part on the shaft sleeve A105 and the turntable A102 is driven by the first reduction box A118 to rotate horizontally around the vertical axis, and then the third drive motor A116 moves the forming wheel 111 on the rotating tool holder A104 upward to above the rim standard part. The fourth drive motor A117 moves the forming wheel 111 on the rotating tool holder A104 toward the rim standard part until the forming wheel 111 faces the rim standard part. One side edge has a certain spinning margin relative to the rim standard part; then the third drive motor A116 drives the forming wheel 111 on the rotating tool holder A104 to move downward to contact the rim standard part, thereby performing spin forming; after forming Multiple spinning moldings of the wheel 111 make the inner wall of the rim standard part match the outer wall of the expanded die 130, and make the rim standard part at the connection between the tread surface 4 at the top and the tire groove wall 3 The raised ring 6 is also formed, so that the rim standard part is formed into the rim 1; then, the hydraulic cylinder 133 moves the expansion die 130 upward to the maximum stroke, so that the expansion die 130 is separated from the rim 1, which also facilitates the rim 1 Remove from the turntable A102; at this time, remove the first connecting bolt A129 and take out the fixing clamp ring A128, and then remove the rim 1 from the turntable A102.

Finally, the clutch device A120 transmissionally connects the second transmission input shaft A in the second reduction box A119 that is transmission connected to the second drive motor A108 and the second transmission output shaft A that is transmission connected to the shaft center rod A106, and through the second drive The motor A108 is driven by the second reduction gearbox A119 to cause the axis rod A106 to drive the threaded rod A123 to rotate, so that the support shaft A103 moves to the starting position along the inner wall of the annular protrusion A122 and the guide rod A125, and then moves the support shaft A103 into the annular groove 127. Clean the debris, and clean the outer surface of the annular protrusion A122 and the surface of the turntable A102.

The edge of the tread 4 at the end of the produced rim 1 away from the rim 5 is coaxially fixedly connected to the spoke through friction stir welding to obtain the wheel hub to be produced.

Claims (8)

1. Processing equipment suitable for different offset rims, its characterized in that: the automatic cutting machine comprises a machine seat box A (101), wherein the center of the top surface of the machine seat box A (101) is connected with a rotary table A (102) which horizontally rotates around a vertical axis, the top surface of the rotary table A (102) is sequentially and coaxially provided with a supporting shaft A (103), an annular bulge A (122) and a fixed clamping ring A (128) for fixing a rim (5) of a rim standard part along the direction from inside to outside, the inner wall of the annular bulge A (122) is matched with the outer side wall of the supporting shaft A (103), one side of the top surface of the machine seat box A (101) is also provided with a rotary knife rest A (104), the rotary knife rest A (104) vertically moves along a stand A (109) fixed on the top surface of the machine seat box A (101) through a sliding seat A (110), the rotary knife rest A (104) horizontally moves along the sliding seat A (110), and the side end surfaces of the rotary knife rest A (104) are respectively and correspondingly provided with a forming wheel (111) and a cutting knife (112), and a driving device of the rotary table A (102) is arranged in the machine seat box A (101). The machine seat comprises a machine seat box A (101), a flaring die (130) which is arranged above the machine seat box A (102) and is coaxially provided with a rim standard part, wherein the flaring die (130) is movably connected up and down through a hydraulic cylinder (133) fixed on a top frame (131), and the top frame (131) is fixedly connected with the rear side of the top surface of the machine seat box A (101) through a supporting vertical frame (132);

the driving device A comprises a first driving motor A (107) fixed in a base box A (101), the first driving motor A (107) is in transmission connection with a shaft sleeve A (105) coaxially fixed at the bottom of a rotary table A (102) through a first reduction gearbox A (118) fixed in the base box A (101), a third driving motor A (116) is fixedly connected in the base box A (101), a sliding seat A (110) is driven by the third driving motor A (116) to move up and down along a vertical frame A (109), a fourth driving motor A (117) is fixedly connected to one end, far away from the rotary table A (102), of the sliding seat A (110), and the fourth driving motor A (117) drives a rotary tool rest A (104) to move horizontally along the sliding seat A (110);

in a lifting groove A (121) matched with a supporting shaft A (103) is formed in the top surface of the turntable A (102) and corresponds to an annular bulge A (122), a thread groove A (124) is formed in the bottom surface axis of the supporting shaft A (103), a plurality of guide grooves A (126) are further formed in the bottom surface of the supporting shaft A (103), a plurality of guide rods A (125) matched with the guide grooves A (126) are fixedly connected in the lifting groove A (121), an axis rod A (106) matched with the inner wall of a shaft sleeve A (105) is arranged at the bottom axis of the lifting groove A (121), a threaded rod A (123) matched with the thread groove A (124) is fixedly connected with the top surface of the axis rod A (106) in the same axis, the axis rod A (106) sequentially passes through a shaft sleeve A (105) and a first reduction box A (118) downwards and then is in transmission connection with a second driving motor A (108) through a second reduction box A (119) fixed in a base box A (101), the second driving motor A (108) is fixed in the base box A (101), and a clutch device (120) is arranged on the base A; the guide rods A (125) are fixedly connected in the lifting groove A (121) through threads and are uniformly distributed by taking the axle center of the lifting groove A (121) as the center.

2. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the depth of the guide groove A (126) is greater than or equal to the height difference between the top of the guide rod A (125) and the bottom of the lifting groove A (121), the depth of the thread groove A (124) is greater than or equal to the height difference between the top of the threaded rod A (123) and the bottom of the lifting groove A (121), and the height difference between the top of the guide rod A (125) and the bottom of the lifting groove A (121) is greater than the height difference between the top of the threaded rod A (123) and the bottom of the lifting groove A (121).

3. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: when the supporting shaft A (103) moves down to the maximum stroke along the lifting groove A (121) and the guide rod A (125), the top surface of the supporting shaft A (103) is higher than the top of the annular protrusion A (122).

4. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the top surface of the support shaft A (103) is coaxially provided with an annular groove A (127).

5. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the rotary knife rest A (104) moves horizontally along a sliding groove A (115) arranged on the sliding seat A (110).

6. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the fixed clamping ring A (128) clamps and fixes the rim (5) of the rim standard part and the turntable A (102) through the first connecting bolts A (129), and the first connecting bolts A (129) are provided with a plurality of bolts and are uniformly distributed by taking the axle center of the turntable A (102) as the center.

7. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the top surface of the annular bulge A (122) is a conical cambered surface with the outer diameter reduced along the direction from bottom to top, and the conical cambered surface is matched with a tire-mounting groove wall (3) of the tire-mounting groove (2) of the rim standard component.

8. A processing apparatus for rims of different offset distances as claimed in claim 1, wherein: the telescopic rod (134) of the hydraulic cylinder (133) downwards penetrates through the through hole A (135) formed in the top frame (131) and is fixedly connected with the top surface of the flaring die (130), the top surface of the flaring die (130) is fixedly connected with the guide rod B (136) which is vertically arranged, and the guide rod B (136) upwards penetrates through the guide hole (137) formed in the top frame (131).