Automobile parts production line

Abstract

The present invention relates to the field of automobile technology, and in particular to an automobile parts production line, which includes an automatic deburring device, a brake drum expansion device, and a brake drum automatic feeding device; the automatic deburring device includes a grinding support and a grinding mechanism arranged on the grinding support, etc.; the brake drum expansion device includes a frame, an expansion mold, and a mold driving mechanism connected to the expansion mold, etc.; the brake drum automatic feeding device includes a feeding preparation mechanism, a running mechanism, and a feeding mechanism arranged in sequence. The brake drum automatic feeding device realizes automatic feeding, the brake drum expansion device expands and forms the brake drum, and the brake drum automatic feeding device cooperates with the brake drum expansion device to realize automatic feeding and automatic forming, which greatly improves the production efficiency of the production line. The automatic deburring device is used to automatically deburr the air holes, which saves manpower and greatly improves efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, in particular to an automobile parts production line. Background Art

[0002] Under the guidance of the national macroeconomic policy, the economic operation of China's automobile industry has ushered in a golden period. China's automobile production has increased. With the global development trend of the automobile market, the global operation of the automobile industry has become a strategy for multinational companies to survive and develop in the global competition arena. China's manufacturing industry has attracted many labor-intensive industries with its advantages of high-quality and low-cost labor, making China a base for global manufacturing.

[0003] The automobile parts production line includes the processing of brake drums and wheels, etc. Among them, the current processing of brake drums adopts the spinning method, which has low production efficiency, and the rim burr treatment still adopts the manual grinding method, which wastes labor costs. Summary of the invention

[0004] The purpose of the present invention is to provide an automobile parts production line to solve the technical problem of low efficiency in the prior art.

[0005] In order to solve the above technical problems, the automobile parts production line provided by the present invention includes an automatic deburring device, a brake drum expansion device and a brake drum automatic feeding device;

[0006] The automatic deburring device comprises a grinding support and a grinding mechanism arranged on the grinding support; the grinding mechanism comprises a longitudinal driving mechanism, a rotary driving mechanism and a chamfering knife; the rotary driving mechanism is connected to the chamfering knife and is used to drive the chamfering knife to rotate so as to deburr the rim pore; the longitudinal driving mechanism is connected to the rotary driving mechanism and is used to drive the rotary driving mechanism to move longitudinally;

[0007] The brake drum expansion device comprises a frame, an expansion mold arranged on the frame, and a mold driving mechanism connected to the expansion mold; the frame comprises a vertical wall spaced apart from the expansion mold; the vertical wall is used to abut against the non-deformed end of the brake drum; the expansion mold is used to expand and shape the molded end of the brake drum in the radial direction; the mold driving mechanism is used to drive the expansion mold to move toward or away from the vertical wall;

[0008] The automatic feeding device for brake drums includes a feeding preparation mechanism, an operating mechanism and a unloading mechanism which are arranged in sequence; the feeding preparation mechanism is used to transport the unformed brake drum to the operating mechanism; the operating mechanism is used to transport the unformed brake drum to the processing station between the expansion mold and the vertical wall in the brake drum expansion device, and transport the formed brake drum at the processing station to the unloading mechanism; the unloading mechanism is used to transport the formed brake drum to the next process.

[0009] Furthermore, the grinding mechanism includes an elastic connecting piece capable of bending, a piston coupling and a spring; the piston coupling includes a cylinder and a piston rod; the cylinder is connected to the rotary drive mechanism, and the rotary drive mechanism is used to drive the cylinder to rotate; one end of the piston rod is located in the cylinder, and the other end is fixed to the elastic connecting piece; the piston rod can rotate with the cylinder and can slide axially in the cylinder; the elastic connecting piece is fixed to the chamfering knife; the spring is sleeved on the piston rod; when the piston rod moves downward, the spring is compressed to buffer the movement of the chamfering knife.

[0010] Furthermore, the automatic deburring device also includes a discharge mechanism; the discharge mechanism includes a discharge rack and a pressing mechanism; the pressing mechanism includes a propulsion member, a lever and a pressure plate; the discharge rack is used to place the deburred products; one end of the lever is connected to the propulsion member, and the other end is connected to the pressure plate; the propulsion member is used to push the lever to rotate so that the pressure plate presses the deburred products downward.

[0011] Furthermore, the pressing plate can rotate relative to the lever to adjust the angle of the pressing plate.

[0012] Furthermore, a guide shaft is provided on the vertical wall; the guide shaft is used to be passed through the non-deformation end of the brake drum; it also includes a compensation component; the compensation component includes an annular contact plate and a compensation elastic member; the contact plate is sleeved outside the guide shaft, and the contact plate is used to abut the end surface of the non-deformation end of the brake drum; the compensation elastic member is located between the contact plate and the vertical wall.

[0013] Furthermore, the expansion mold includes an expansion drive mechanism, a cone, a plurality of expansion blocks and a guide structure; the plurality of expansion blocks are circumferentially arranged outside the cone; a molding surface matching the inner wall of the molded brake drum is provided on a side of the expansion block away from the cone; the diameter of one end of the cone close to the vertical wall is smaller than the diameter of the other end;

[0014] The mold drive mechanism is connected to the expansion drive mechanism; the expansion drive mechanism is connected to the cone and is used to drive the cone to move toward or away from the vertical wall; the guide structure is used to guide the expansion block to move radially along the cone.

[0015] Furthermore, the feeding preparation mechanism includes a bracket, a feeding track obliquely arranged on the bracket, and a quantitative component; the inlet end of the feeding track is higher than the outlet end; the outlet end of the feeding track is connected to the operating mechanism; the quantitative component is arranged at the outlet end of the feeding track; the quantitative component is used to convey an unformed brake drum to the operating mechanism each time.

[0016] Furthermore, the quantitative assembly includes a quantitative drive mechanism and a lifting frame; an inclined plate inclined toward the operating mechanism is provided at the bottom of the lifting frame; when the quantitative drive mechanism lifts the lifting frame to allow the inclined plate to dock with the operating mechanism, the unformed brake drum on the inclined plate rolls toward the operating mechanism.

[0017] Furthermore, the operating mechanism includes a material pushing seat, a transverse driving mechanism and two material supporting components; the material pushing seat is arranged in the interval between the vertical wall and the expansion mold;

[0018] The support assembly includes a support rack and a longitudinal driving mechanism; the longitudinal driving mechanism is connected to the support rack and is used to drive the support rack to move longitudinally; the two support racks are used to support the unformed brake drum and the formed brake drum respectively; the transverse driving mechanism is arranged on the pushing seat and is used to drive the support assembly to move transversely.

[0019] Furthermore, the unloading mechanism includes a unloading base and a unloading channel obliquely arranged on the unloading base; the inlet end of the unloading channel is higher than the outlet end; the inlet end of the unloading channel is connected to the operating mechanism; the unloading channel includes two unloading rails arranged in parallel and spaced apart; the two unloading rails are respectively provided with baffle rods on the side away from each other; the two unloading rails are used to respectively support the two ends of the formed brake drum.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects:

[0021] The automobile parts production line provided by the present invention has a brake drum automatic feeding device that realizes automatic feeding, and a brake drum expansion device that expands and forms the brake drum. The brake drum automatic feeding device and the brake drum expansion device cooperate to realize automatic feeding and automatic forming, which greatly improves the production efficiency of the production line. The automatic deburring device is used to automatically deburr the pores, which saves manpower and greatly improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A front view of the automatic feeding device for brake drums provided by an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A perspective view of the automatic loading device for brake drums shown;

[0025] Figure 3 for Figure 1 A front view of a feeding preparation mechanism in an automatic feeding device for brake drums shown;

[0026] Figure 4 for Figure 3 AA sectional view of the feeding preparation mechanism shown;

[0027] Figure 5 for Figure 3 A three-dimensional diagram of the feeding preparation mechanism shown;

[0028] Figure 6 for Figure 1 A front view of the operating mechanism in the automatic loading device for brake drums shown;

[0029] Figure 7 for Figure 6 A three-dimensional diagram of the operating mechanism shown;

[0030] Figure 8 for Figure 1 The front view of the unloading mechanism in the automatic loading device for brake drums shown;

[0031] Fig. 9 for Figure 8 A top view of the feeding mechanism shown;

[0032] Fig.10 for Figure 8 A three-dimensional diagram of the feeding mechanism shown;

[0033] Fig.11 A front view of a brake drum expansion device provided by an embodiment of the present invention;

[0034] Fig.12 for Fig.11 The AA section view of the brake drum expansion device shown;

[0035] Fig.13 for Fig.11 A perspective view of the brake drum expansion device shown;

[0036] Fig.14 A top view of an automatic deburring device provided by an embodiment of the present invention;

[0037] Fig.15 for Fig.14 AA sectional view of the automatic deburring device shown;

[0038] Fig.16 for Fig.14 A front view of the automatic deburring device shown;

[0039] Fig.17 for Fig.16 A partial enlarged view of the automatic deburring device B shown;

[0040] Fig.18 for Fig.14 A three-dimensional view of the automatic deburring device shown.

[0041] Reference numerals:

[0042] 1-Feeding preparation mechanism; 2-Operation mechanism; 3-Feeding mechanism;

[0043] 4-unformed brake drum; 5-formed brake drum; 6-bracket;

[0044] 7-feeding track; 8-cooling pipeline; 9-quantitative driving mechanism;

[0045] 10-lifting frame; 11-feeding screw rod; 12-locking nut;

[0046] 13-guide shaft; 14-supporting roller; 15-supporting plate;

[0047] 16-longitudinal driving mechanism; 17-transverse driving mechanism; 18-push seat;

[0048] 19-feeding track; 20-height adjustment component; 21-width adjustment component;

[0049] 22-unloading base; 23-hand wheel; 24-unloading screw;

[0050] 25-frame; 26-expansion mold; 27-mold driving mechanism;

[0051] 28-vertical wall; 29-rectangular spring; 30-contact plate;

[0052] 31-guide shaft; 32-flange; 33-screw;

[0053] 34- expansion base; 35- expansion block; 36- slider;

[0054] 37- cone; 38- support seat; 39- expansion drive mechanism;

[0055] 40- expansion support; 41- top support; 42- grinding support;

[0056] 43-pressing plate; 44-discharging rack; 45-lever;

[0057] 46-propelling member; 47-longitudinal driving mechanism; 48-support seat;

[0058] 49-grinding base; 50-screw; 51-locking nut;

[0059] 52-push plate; 53-push cylinder; 54-chamfering knife;

[0060] 55-elastic connecting piece; 56-piston rod; 57-cylinder barrel;

[0061] 58-reducer; 59-motor; 60-grinding spring. DETAILED DESCRIPTION

[0062] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0064] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The present invention is further explained below in conjunction with specific implementation modes.

[0066] like Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 The three formed brake drums are used to demonstrate their movement process, and they are actually the same formed brake drum. The automobile parts production line provided in this embodiment includes a deburring device, a brake drum expansion device, and a brake drum automatic feeding device;

[0067] The automatic feeding device for brake drums includes a feeding preparation mechanism 1, an operating mechanism 2 and a unloading mechanism 3 which are arranged in sequence; the feeding preparation mechanism 1 is used to transport the unformed brake drum 4 to the operating mechanism 2; the operating mechanism 2 is used to transport the unformed brake drum 4 to the processing station between the expansion mold 26 and the vertical wall 28 in the brake drum expansion device, and transport the formed brake drum 5 at the processing station to the unloading mechanism 3; the unloading mechanism 3 is used to transport the formed brake drum 5 to the next process.

[0068] When in use, the robot places the unformed brake drum 4 on the feeding preparation mechanism 1, the feeding preparation mechanism 1 inputs the unformed brake drum 4 into the operating mechanism 2, the operating mechanism 2 transports the unformed brake drum 4 to the processing station of the brake drum expansion device, and at the same time transports the formed brake drum 5 (expanded and formed) that has been processed at the processing station to the unloading mechanism 3, the unloading mechanism 3 transports the formed brake drum 5 to the next process, so as to realize the automatic loading function of the brake drum and greatly improve the loading efficiency.

[0069] like Figures 3 to 5 As shown, the feeding preparation mechanism 1 includes a bracket 6 and a feeding track 7 obliquely arranged on the bracket 6; the inlet end of the feeding track 7 is higher than the outlet end; the outlet end of the feeding track 7 is docked with the operating mechanism 2. The manipulator places the unformed brake drum 4 at the inlet end of the feeding track 7. Since the outlet end is lower, the unformed brake drum 4 automatically rolls to the outlet end on the feeding track 7 to enter the operating mechanism 2.

[0070] Preferably, the feed preparation mechanism 1 further includes a feed adjustment member, which is used to adjust the inclination angle of the feed track 7. The feed adjustment member can be in various structural forms, for example, the outlet end of the feed track 7 is hinged to the bracket 6, and the feed adjustment member includes a feed screw 11 and a locking nut 12, the upper end of the feed screw 11 is fixed to the bottom wall of the inlet end of the feed track 7, and the user can adjust the height of the feed screw 11 to adjust the height of the inlet end of the feed track 7 to achieve inclination angle adjustment, and then fix the feed screw 11 to the bracket 6 through the locking nut 12.

[0071] The feeding preparation mechanism 1 includes a quantitative component; the quantitative component is arranged at the outlet end of the feeding track 7; the quantitative component is used to convey an unformed brake drum 4 to the operating mechanism 2 each time, so as to avoid a large number of unformed brake drums 4 from accumulating on the operating mechanism 2, realize single orderly feeding, and avoid the problem of multiple materials being incorporated.

[0072] The quantitative component includes a quantitative driving mechanism 9 and a lifting frame 10; the bottom of the lifting frame 10 is provided with an inclined plate inclined toward the operating mechanism 2; when the quantitative driving mechanism lifts the lifting frame 10 to dock the inclined plate with the operating mechanism 2, the unformed brake drum 4 on the inclined plate rolls toward the operating mechanism 2. When the unformed brake drum 4 rolls from the inlet end of the feed track 7 to the outlet end, it rolls onto the inclined plate and stops under the blocking action of the lifting frame 10. When the quantitative driving mechanism lifts the lifting frame 10, the inclined plate docks with the operating mechanism 2, and the unformed brake drum 4 automatically rolls toward the operating mechanism 2 on the inclined plate. The quantitative driving mechanism can be a lifting cylinder. The lifting cylinder is fixed on the bracket 6, and a guide hole is provided on the bracket 6. A guide shaft 14 is provided on the lifting frame 10, and the guide shaft 14 is located in the guide hole. The two cooperate to achieve guidance during the lifting process.

[0073] The feeding preparation mechanism 1 includes a cooling pipe 8, which is located above the feeding track 7 and is used to drip cooling water onto the unformed brake drum 4. When the unformed brake drum 4 rolls on the feeding track 7, the cooling pipe 8 drips cooling water to cool the brake drum weld.

[0074] Among them, Figure 6 and Figure 7 As shown, Figure 6 and Figure 7The two formed brake drums are used to show the movement process, but they are actually the same formed brake drum. The operating mechanism 2 includes a material pusher 18, a transverse driving mechanism 17 and two material support assemblies; the material pusher 18 is arranged in the gap between the vertical wall 28 and the expansion mold 26; the material support assembly includes a support frame and a longitudinal driving mechanism 16; the longitudinal driving mechanism 16 is connected to the support frame and is used to drive the support frame to move longitudinally; the two support frames are used to support the unformed brake drum 4 and the formed brake drum 5 respectively; the transverse driving mechanism 17 is arranged on the material pusher 18 and is used to drive the material support assembly to move transversely. The unformed brake drum 4 automatically rolls from the inclined plate onto the nearest support rack, while the formed brake drum 5 processed by the brake drum expansion device falls onto another support rack. The transverse drive mechanism 17 moves the two support racks transversely, so that the unformed brake drum 4 is transported to the processing station of the brake drum expansion device, and the formed brake drum 5 is transported to the unloading mechanism 3. The longitudinal drive mechanism 16 drives the support rack to move downward, and the unformed brake drum 4 is positioned on the brake drum expansion device (at this time, the mold drive mechanism 27 of the brake drum expansion device drives the expansion mold 26 to move toward the vertical wall 28, so that the expansion mold 26 abuts the brake drum against the vertical wall 28 to achieve the positioning of the brake drum) for processing, and the formed brake drum 5 falls onto the unloading mechanism 3. The transverse drive mechanism 17 then drives the two support racks to move back transversely, and the unformed brake drum 4 and the formed brake drum 5 are respectively transported again, and orderly loading is realized in a cycle. It changes the traditional rolling material operation and adopts point-to-point feeding, which is fast.

[0075] Preferably, a linear guide rail is provided on the pusher seat 18, and the support frame moves under the guidance of the linear guide rail to achieve fast and stable operation.

[0076] Preferably, the transverse driving mechanism 17 is a cylinder, which pushes the support frame into place at one time, thereby speeding up the operation rhythm of the product and improving the operation accuracy.

[0077] The support frame includes a support plate 15 and two support rollers 14 rotatably arranged on the support plate 15; the roller 14 of one of the support frames is cylindrical and is used to support the unformed brake drum 4. Since the unformed brake drum 4 has a flat surface, the product can be placed freely. The outer surface shape of the support roller 14 of the other support frame matches the surface shape of the formed brake drum 5, and is used to support the formed brake drum 5, so as to achieve linear contact between the product and the support roller, thereby ensuring the stability of the product operation and preventing deviation and overturning. By changing the different profiles of the support rollers 14 of the upper and lower material running frames, the problem of the single-sided expansion product having different shapes and being unable to connect with each other is solved.

[0078] Among them, Figures 8 to 10As shown, the unloading mechanism 3 includes an unloading base 22 and an unloading channel obliquely arranged on the unloading base 22; the inlet end of the unloading channel is higher than the outlet end; the inlet end of the unloading channel is connected to the operating mechanism 2; the unloading channel includes two unloading rails 19 arranged in parallel and spaced apart; the two unloading rails 19 are respectively provided with blocking rods on the sides away from each other; the two unloading rails 19 are used to respectively support the two ends of the formed brake drum 5. The transverse driving mechanism 17 drives the support frame to transport the formed brake drum 5 to the top of the unloading channel, and the longitudinal driving mechanism 16 drives the support frame to move downward, and the formed brake drum 5 on the support frame falls onto the two unloading rails 19 and rolls toward the outlet end along the unloading rails 19. The blocking rod blocks the two ends of the formed brake drum 5, so that the formed brake drum 5 rolls stably on the unloading rails 19. The material discharge channel adopts two material discharge tracks 19 arranged at intervals, that is, the material discharge channel is disconnected in the middle and contacted at both ends, which solves the problem of large changes in product appearance dimensions through line contact, and the middle disconnection method facilitates independent adjustment of the contact surface heights at both ends, which can be applied to the smooth discharge of different products and models.

[0079] Furthermore, the unloading mechanism 3 includes a width adjustment assembly 21; the width adjustment assembly 21 is used to adjust the distance between the two unloading tracks 19, so as to adapt to the formed brake drums 5 of different widths, solving the problem that different brake drum models lead to different widths. Preferably, the width adjustment assembly 21 includes two screw rod assemblies respectively located on both sides of the unloading channel, and the screw rod assembly includes an unloading screw rod 24 and a hand wheel 23. The two unloading screw rods 24 rotate in opposite directions, and the hand wheel 23 is rotated to achieve width adjustment.

[0080] The feeding mechanism 3 includes a height adjustment component 20, which is used to adjust the height of the feeding track 19, so as to achieve independent adjustment of the heights of both sides of the feeding track to accommodate smooth feeding of different product models. The height adjustment component 20 has various structural forms, for example, a screw is set under the feeding track 19, and the height of the feeding track 19 is adjusted by rotating the screw to adjust the height of the screw.

[0081] The inclination angle of the material discharge channel can be adjusted, and the adjustment method can be the same as the inclination method of the material feed track 7 mentioned above.

[0082] The automatic feeding device for brake drums provided by the present invention is a feeding mechanism for innovative equipment for brake drum production, which solves the problem of poor stability of automatic feeding due to large differences in product shapes, and improves stability and reliability in the automation process. The production cycle of the feeding device is increased by nearly 65% ​​compared with the traditional production method, which greatly improves production efficiency, reduces personnel input, liberates labor, reduces labor costs, improves production levels, improves one-time qualified rates, realizes the effective circulation of different models of brake drum products, completes unmanned connection between brake drum production line equipment, and improves the stability and reliability of automatic feeding of brake drum products.

[0083] like Figures 11 to 13 As shown, the brake drum expansion device provided by the present invention includes a frame 25, an expansion mold 26 arranged on the frame 25, and a mold driving mechanism 273 connected to the expansion mold 26; the frame 25 includes a vertical wall 28 spaced apart from the expansion mold 26; the vertical wall 28 is used to abut the non-deformed end of the brake drum; the expansion mold 26 is used to radially expand and mold the forming end of the brake drum; the mold driving mechanism 27 is used to drive the expansion mold 26 to move toward or away from the vertical wall 28.

[0084] When in use, the operating mechanism 2 in the automatic feeding device for the brake drum transports the brake drum to the gap between the vertical wall 28 and the expansion mold 2, and the mold driving mechanism 27 drives the expansion mold 26 to move toward the vertical wall 28, so that the non-deformed end of the brake drum (referring to the end of the brake drum that does not need to be expanded and formed) is against the vertical wall 28 of the frame 25, and the expansion mold 26 is located at the forming end of the brake drum and expands and forms the brake drum. After that, the mold driving mechanism 27 drives the expansion mold 26 to move away from the vertical wall 28, and the operating mechanism 2 in the automatic feeding device for the brake drum removes the formed brake drum to complete the brake drum forming. The vertical wall 28 plays a role in resisting the brake drum to prevent the brake drum from moving laterally during forming. The brake drum processing method provided by the present invention liberates labor, improves production efficiency, has a high one-time qualified rate, less waste, and high material utilization, and solves the problem of uneven shape and difficult rolling of subsequent brake drums.

[0085] A guide shaft 31 is provided on the vertical wall 28; the guide shaft 31 is used to pass through the non-deformed end of the brake drum. The guide shaft 31 guides the brake drum, that is, when the brake drum is expanded and formed, the inner wall of the non-deformed end of the brake drum can always move in contact with the surface of the guide shaft 31, thereby ensuring that the inner and outer surfaces of this side will not deviate radially.

[0086] The compensation assembly includes an annular contact plate 30 and a compensation elastic member; the contact plate 30 is sleeved outside the guide shaft 31, and the contact plate 30 is used to abut the end face of the non-deformed end of the brake drum; the compensation elastic member is located between the contact plate 30 and the vertical wall 28. During processing, the annular end face of the non-deformed end of the brake drum abuts on the contact plate 30, and the compensation elastic member is compressed. As the expansion mold 26 expands and forms the brake drum, the width of the brake drum gradually decreases. At this time, the compensation elastic member rebounds to make the brake drum move toward the expansion mold 26, so that the brake drum can always be close to the expansion mold 26 without affecting the forming, that is, the flexible rebound of the compensation elastic member realizes displacement compensation for the brake drum, thereby avoiding the problem of width shortening and shape deformation caused by unilateral expansion of the brake drum. When the forming is completed, the expansion mold 26 is recovered, and the compensation elastic member pushes the brake drum out of the guide shaft 31 to facilitate the removal of the guide shaft 31. The operating mechanism of the automatic loading device of the brake drum transports the formed brake drum 5 to the unloading mechanism 3. The annular contact plate 30 cooperates with the annular end surface of the brake drum, so that the non-deformed end of the brake drum is in abutment and stable.

[0087] Preferably, the compensating elastic member is a rectangular spring 29, which is sleeved on a screw 33; the two ends of the screw 33 are respectively fixed on the contact plate 30 and the vertical wall 28; a plurality of rectangular springs 29 are arranged at intervals along the circumference of the guide shaft 31, so that the contact plate 30 is subjected to balanced force when rebounding. A flange 32 can be provided on the vertical wall 28, and the rectangular spring 29 and the guide shaft 31 can be installed on the flange 32.

[0088] The expansion mold 26 includes an expansion drive mechanism 39, a cone 37, a plurality of expansion blocks 35 and a guide structure; the plurality of expansion blocks 35 are arranged outside the cone 37 in the circumferential direction; the expansion block 35 is provided with a molding surface matching the inner wall of the molded brake drum on one side away from the cone 37; the diameter of one end of the cone 37 close to the vertical wall 28 is smaller than the diameter of the other end; the expansion drive mechanism 39 is connected to the cone 37 and is used to drive the cone 37 to move toward or away from the vertical wall 28; the guide structure is used to guide the expansion block 35 to move radially along the cone 37. During molding, the expansion drive mechanism 39 drives the cone 37 to move toward the vertical wall 28, the cone surface of the cone 37 squeezes the expansion block 35, and the expansion block 35 moves radially under the guidance of the guide structure and expands the brake drum into shape, and then the expansion drive mechanism 39 drives the cone 37 to move back, the expansion block 35 is retracted, and the mold drive mechanism 273 drives the expansion mold 26 to move away from the vertical wall 28, and the brake drum can be removed.

[0089] The guide structure can be in various forms, for example, the guide structure includes a guide block, which is vertically fixed on the frame 25, and the guide block is provided with a guide groove along the radial direction of the cone 37, and a limit block is provided on the expansion block 35, and the limit block cooperates with the guide groove. When the cone 37 squeezes the expansion block 35 outward, the expansion block 35 moves radially along the guide groove under the action of the guide groove. Preferably, the guide structure also includes a return spring, and when the expansion block 35 is squeezed and moved outward, the return spring is compressed, and when the molding is completed, the cone 37 moves back, and the expansion block 35 is stably retracted under the action of the return spring.

[0090] Preferably, a slider 36 is provided between the cone 37 and the expansion block 35 , and the expansion block 35 is fixed on the slider 36 . The cone 37 squeezes the slider 36 to drive the expansion block 35 to move.

[0091] Preferably, the expansion drive mechanism 39 and the mold drive mechanism 27 are oil cylinders.

[0092] The frame 25 includes an expansion base 34 and a support base 38 fixed on the expansion base 34; an expansion drive mechanism 39 is slidably arranged on the support base 38. The frame 25 also includes a vertically arranged expansion support 40; the mold drive mechanism 27 is fixed on the expansion support 40. The frame 25 includes an expansion base 34 and a top seat 41; the vertical wall 28 and the expansion support 40 are arranged at both ends of the expansion base 34 opposite to each other; the top seat 41 is fixed to the top of the vertical wall 28 and the expansion support 40. The front and rear sides of the frame 25 are open structures, which facilitates the brake drum to be sent into and removed from the frame 25.

[0093] Preferably, a limiting structure for limiting the moving distance of the cone 37 is provided on the support seat 38. The limiting structure can be a limiting groove, that is, a limiting groove is provided on the support seat 38, and the movement stops when the side wall of the limiting groove is touched. When the expansion drive mechanism 39 is an oil cylinder, the telescopic rod of the oil cylinder stops moving when it touches the side wall of the limiting groove, thereby playing a limiting role.

[0094] In summary, the complete working process of the brake drum expansion device provided by the present invention is:

[0095] After the brake drum enters the processing station of the frame 25, the mold driving mechanism 27 pushes the expansion mold 26 and the brake drum to move, the rectangular spring 29 on the contact plate 30 is compressed and axially positions the brake drum, the expansion driving mechanism 39 drives the mold driving mechanism 27 and the cone 37 to move, the expansion block 35 radially expands for molding, and at the same time the rectangular spring 29 on the contact plate 30 compensates for the rebound as the width of the brake drum decreases. When the expansion is completed, the expansion driving mechanism 39 drives the cone 37 to move back, the expansion block 35 is retracted, the mold driving mechanism 27 drives the expansion mold 26 to retract, the rectangular spring 29 pushes the brake drum out of the guide shaft 31, and the expansion process is completed.

[0096] The brake drum expansion equipment provided by the present invention fully analyzes the shape of the brake drum, dissects the shape of the brake drum with a large deformation range and high difficulty in subsequent equipment rolling, develops, designs and manufactures a single-sided expansion mold 26, and completes the single-sided expansion molding process before rolling. This equipment is an innovative process equipment for brake drum production, which solves the problem of subsequent rolling difficulties due to large differences in brake drum shapes, and also opens up a precedent for cold rolling of brake drums. The production cycle of this equipment is increased by nearly 65% ​​compared with traditional production methods, and the material utilization rate of the product is increased by 30%, which is a milestone in integrated innovation in the field of brake drums in my country. The use of hydraulic linkage in the equipment reduces personnel input, liberates labor, reduces labor costs, and improves production levels. The design of this equipment is timely and of great significance. The market development prospects of the project products are broad, and the project construction has a certain market development space. The implementation of the project will bring relatively considerable economic and social benefits to the project party.

[0097] like Figures 14 to 18 As shown, the automatic deburring device provided by the present invention includes a grinding support 42 and a grinding mechanism arranged on the grinding support 42; the grinding mechanism includes a longitudinal driving mechanism 47, a rotary driving mechanism and a chamfering knife 54; the rotary driving mechanism is connected to the chamfering knife 54, and is used to drive the chamfering knife 54 to rotate to deburr the pores; the longitudinal driving mechanism 47 is connected to the rotary driving mechanism, and is used to drive the rotary driving mechanism to move longitudinally.

[0098] When in use, the longitudinal drive mechanism 47 and the rotary drive mechanism are started, the rotary drive mechanism drives the chamfering knife 54 to rotate, and the longitudinal drive mechanism 47 drives the rotary drive mechanism and the chamfering knife 54 to move upward, and when the chamfering knife 54 is aligned with the air hole, it is ground and deburred, thereby realizing automatic deburring, saving manpower, and greatly improving efficiency. The longitudinal drive mechanism 47 solves the problem of possible interference between the chamfering knife 54 and the product due to different feeding heights resulting in different strokes from the initial position of the chamfering knife 54 to the grinding position or too small a stroke.

[0099] The following product is explained using the rim as an example. The user can select the material and size of the chamfering knife 54 according to the size of the valve hole and the material of the rim itself, and select the appropriate angle of the chamfering knife 54 by simulating actual movement to avoid the design and selection of the model, angle, material and other issues of the chamfering knife 54 that may affect the quality of the valve hole burr.

[0100] The rotary drive mechanism may be a motor 59, and a reducer 58 may be provided. The motor 59 drives the chamfering cutter 54 through the reducer 58. The longitudinal drive mechanism 47 may be a cylinder, and the cylinder may realize precise linear motion of the mechanism through a linear guide. Preferably, the longitudinal drive mechanism 47 is an adjustable stroke cylinder, so that the longitudinal movement distance of the chamfering cutter 54 can be adjusted, and the stroke and interference problems caused by different heights can be avoided.

[0101] Preferably, the grinding mechanism is arranged obliquely on the grinding support 42, that is, the chamfering knife 54 is also arranged obliquely, so that the chamfering knife 54 can contact the rim air hole for grinding.

[0102] like Fig.17 As shown, the grinding mechanism includes a flexible connector 55 capable of bending, a piston coupling and a grinding spring 60; the piston coupling includes a cylinder 57 and a piston rod 56; the cylinder 57 is connected to a rotary drive mechanism, and the rotary drive mechanism is used to drive the cylinder 57 to rotate; one end of the piston rod 56 is located in the cylinder 57, and the other end is fixed to the flexible connector 55; the piston rod 56 can rotate with the cylinder 57 and can slide axially in the cylinder 57; the flexible connector 55 is fixed to the chamfering knife 54; the grinding spring 60 is sleeved on the piston rod 56; when the piston rod 56 moves downward, the grinding spring 60 is compressed to buffer the movement of the chamfering knife 54. When in use, the rotary drive mechanism drives the cylinder 57, the piston rod 56, the flexible connector 55 and the chamfering knife 54 to rotate together, and at the same time moves upward under the drive of the longitudinal drive mechanism 47. When the longitudinal drive mechanism 47 drives the chamfering knife 54 to move upward, the chamfering knife 54 gradually contacts the rim. When the chamfering knife 54 contacts the edge of the air hole, the elastic connector 55 can bend to align the chamfering knife 54 with the air hole, thereby achieving automatic alignment. This solves the problem that the chamfering knife 54 cannot correctly align with the valve hole position due to offset or inaccurate feeding position, resulting in low grinding accuracy, thereby avoiding the feeding accuracy affecting the grinding accuracy. Preferably, the elastic connector 55 is an elastic coupling. When the chamfering knife 54 moves upward and gradually contacts the rim and acts on the rim, the chamfering knife 54 is subjected to the downward reaction force of the rim, the piston rod 56 moves downward in the cylinder 57, the elastic connector 55 and the chamfering knife 54 move downward together, the elastic connector 55 compresses the grinding spring 60, and the piston movement can buffer the cylinder force and flexibly expand and contract, thereby avoiding the rim position from being offset due to excessive lifting force of the longitudinal drive mechanism 47 when the chamfering knife 54 starts to grind. The grinding spring 60 can buffer the movement of the chamfering knife 54 and enable the chamfering knife 54 to achieve automatic adjustment.

[0103] There are many ways to realize that the piston rod 56 can rotate with the cylinder 57 and can slide axially in the cylinder 57. Preferably, the cross section of the inner wall of the cylinder 57 and the cross section of the end of the piston rod 56 connected to the cylinder 57 are both polygonal. The cylinder 57 and the piston rod 56 are matched with each other in a polygonal shape. The rotation of the cylinder 57 can drive the piston rod 56 to rotate. The structure is simple and easy to realize. The polygon can be a rectangle, a pentagon, a hexagon, etc.

[0104] The grinding support 42 includes a support seat 48 and a grinding base 49; the grinding mechanism is arranged on the support seat 48; the support seat 48 is connected to the grinding base 49, and the support seat 48 can rotate relative to the grinding base 49. The user can rotate the support seat 48 to adjust the angle of the support seat 48, thereby adjusting the angle of the chamfering knife 54 to adapt to the grinding work of the rim valve hole at different angles, and solve the problem that the rim valve hole has different angles relative to the rim itself. There can be many ways to realize the rotation of the support seat 48 relative to the grinding base 49. Preferably, the support seat 48 is hinged to the grinding base 49 and fixed to the grinding base 49 by a fixing part. The fixing part can be a screw 50 and a locking nut 51. A fixing hole is arranged on the grinding base 49, and the fixing hole is a vertical waist-shaped hole. One end of the screw 50 is connected to the support seat 48, and the other end is passed through the waist-shaped hole. After the user pushes the screw rod 50 to adjust the angle of the support seat 48 , the screw rod 50 is locked and fixed on the grinding base 49 by the locking nut 51 .

[0105] The automatic deburring device also includes a feeding mechanism; the feeding mechanism includes a feeding rack 44 and a pressing mechanism; the feeding rack 44 is used to place the deburred products; the pressing mechanism includes a pusher 46, a lever 45 and a pressing plate 43; one end of the lever 45 is connected to the pusher 46, and the other end is connected to the pressing plate 43; the pusher 46 is used to push the lever 45 to rotate so that the pressing plate 43 presses the deburred products downward. When in use, the pusher 46 pushes the lever 45, the lever 45 rotates, and the pressing plate 43 moves downward to press the deburred products on the feeding rack 44 to prevent swinging or shaking, improve the stability of the deburring work, and ensure the normal completion of the grinding process. The lever 45 method is used to save labor.

[0106] The pressing plate 43 can rotate relative to the lever 45 to adjust the angle of the pressing plate 43, so that the pressing plate 43 can be aligned with the burred products of different sizes, so that the pressing plate 43 can fully contact the rim end surface to achieve effective compression and improve applicability. The implementation method can be: the pressing plate 43 is hinged to the lever 45 through a rotating shaft, and the pressing plate 43 is rotated to a suitable angle and then fixed to the lever 45. The propulsion member 46 can be a cylinder.

[0107] The material discharge mechanism includes a pusher; the pusher is used to push the burred product off the material discharge rack 44. When the grinding work is completed, the grinding mechanism moves downward, the pressing plate moves upward, and the product is pushed down by the pusher. Preferably, the pusher is a push cylinder 53 and a push plate 52, and the push cylinder 53 pushes the push plate 52 to push the product down. Stable material discharge can also be achieved by guiding the guide rail.

[0108] In summary, the automobile parts production line provided by the present invention saves manpower and greatly improves production efficiency by improving the brake drum feeding, brake drum forming and wheel rim deburring processes.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automobile parts production line, characterized in that: It includes an automatic deburring device, a brake drum expansion device and a brake drum automatic feeding device; The automatic deburring device comprises a grinding support and a grinding mechanism arranged on the grinding support; The grinding mechanism includes a longitudinal drive mechanism, a rotary drive mechanism and a chamfering knife; the rotary drive mechanism is connected to the chamfering knife and is used to drive the chamfering knife to rotate so as to deburr the rim pores; the longitudinal drive mechanism is connected to the rotary drive mechanism and is used to drive the rotary drive mechanism to move longitudinally; The brake drum expansion device comprises a frame, an expansion die arranged on the frame, and a die driving mechanism connected to the expansion die; The frame includes a vertical wall spaced apart from the expansion mold; the vertical wall is used to abut against the non-deformed end of the brake drum; the expansion mold is used to expand and shape the molded end of the brake drum in the radial direction; the mold driving mechanism is used to drive the expansion mold to move toward or away from the vertical wall; The automatic feeding device for the brake drum comprises a feeding preparation mechanism, a running mechanism and a feeding mechanism which are arranged in sequence; The feeding preparation mechanism is used to transport the unformed brake drum to the operating mechanism; the operating mechanism is used to transport the unformed brake drum to the processing station between the expansion mold and the vertical wall in the brake drum expansion device, and transport the formed brake drum at the processing station to the unloading mechanism; the unloading mechanism is used to transport the formed brake drum to the next process; A guide shaft is provided on the vertical wall; the guide shaft is used to pass through the non-deformed end of the brake drum; The brake drum expansion device also includes a compensation component; the compensation component includes an annular contact plate and a compensation elastic member; the contact plate is sleeved outside the guide shaft, and the contact plate is used to abut the end surface of the non-deformed end of the brake drum; the compensation elastic member is located between the contact plate and the vertical wall; The expansion die comprises an expansion drive mechanism, a cone, a plurality of expansion blocks and a guide structure; A plurality of expansion blocks are circumferentially arranged outside the cone; a molding surface matching the inner wall of the molded brake drum is provided on a side of the expansion block away from the cone; a diameter of one end of the cone close to the vertical wall is smaller than a diameter of the other end; The mold drive mechanism is connected to the expansion drive mechanism; the expansion drive mechanism is connected to the cone, for driving the cone to move toward or away from the vertical wall; the guide structure is used to guide the expansion block along the radial movement of the cone; The feeding preparation mechanism comprises a bracket, a feeding track obliquely arranged on the bracket, and a quantitative component; The inlet end of the feed track is higher than the outlet end; the outlet end of the feed track is connected to the operating mechanism; the quantitative component is arranged at the outlet end of the feed track; the quantitative component is used to deliver an unformed brake drum to the operating mechanism each time; The operating mechanism includes a material pushing seat, a transverse driving mechanism and two material supporting components; The pusher seat is arranged in the interval between the vertical wall and the expansion mold; The support assembly includes a support rack and a longitudinal driving mechanism; the longitudinal driving mechanism is connected to the support rack and is used to drive the support rack to move longitudinally; the two support racks are used to support the unformed brake drum and the formed brake drum respectively; the transverse driving mechanism is arranged on the pushing seat and is used to drive the support assembly to move transversely.

2. The automobile parts production line according to claim 1, characterized in that: The grinding mechanism includes an elastic connecting piece capable of bending, a piston coupling and a spring; The piston coupling comprises a cylinder and a piston rod; the cylinder is connected to the rotary drive mechanism, and the rotary drive mechanism is used to drive the cylinder to rotate; one end of the piston rod is located in the cylinder, and the other end is fixed to the elastic connector; The piston rod can rotate with the cylinder and can slide axially in the cylinder; the elastic connecting piece is fixed to the chamfering knife; the spring is sleeved on the piston rod; when the piston rod moves downward, the spring is compressed to buffer the movement of the chamfering knife.

3. The automobile parts production line according to claim 1, characterized in that: The automatic deburring device also includes a material discharge mechanism; the material discharge mechanism includes a material discharge frame and a clamping mechanism; the clamping mechanism includes a propulsion member, a lever and a pressing plate; The material placement rack is used to place the burred products; one end of the lever is connected to the pusher, and the other end is connected to the pressure plate; the pusher is used to push the lever to rotate so that the pressure plate presses the burred products downward.

4. The automobile parts production line according to claim 3, characterized in that: The pressing plate can rotate relative to the lever to adjust the angle of the pressing plate.

5. The automobile parts production line according to claim 1, characterized in that: The quantitative assembly includes a quantitative driving mechanism and a lifting frame; an inclined plate inclined toward the operating mechanism is provided at the bottom of the lifting frame; when the quantitative driving mechanism lifts the lifting frame to allow the inclined plate to dock with the operating mechanism, the unformed brake drum on the inclined plate rolls toward the operating mechanism.

6. The automobile parts production line according to claim 1, characterized in that: The material discharging mechanism comprises a material discharging base and a material discharging channel obliquely arranged on the material discharging base; the inlet end of the material discharging channel is higher than the outlet end; the inlet end of the material discharging channel is connected to the operating mechanism; The material discharge channel comprises two material discharge tracks which are arranged in parallel and at intervals; a stop rod is respectively arranged on one side of the two material discharge tracks away from each other; and the two material discharge tracks are used to respectively support the two ends of the formed brake drum.

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