Material receiving device for surface treatment of automobile engine cylinder cover

Abstract

The invention relates to the technical field of engine cylinder cover surface treatment, in particular to an automobile engine cylinder cover surface treatment material receiving device which comprises a machine table, a movable carrying plate is arranged at the top of the machine table in a sliding mode, and a polishing mechanism is fixed to the top face of the movable carrying plate and comprises two first air cylinders fixed to the movable carrying plate. A shaft rod is rotationally arranged between the output ends of the two first air cylinders, a plurality of polishing rollers are fixed to the outer side of the shaft rod, and the outer side of the shaft rod is sleeved with a polishing grinding head in a transmission mode. According to the polishing device, the polishing mechanism is arranged to be in the form of the multiple polishing rollers and the polishing grinding head, the movable carrying plate slides on the machine table to enable the polishing rollers to rotate for polishing and move linearly on the surface of the cylinder cover at the same time, the shaft rod drives the polishing grinding head to rotate the polishing spherical groove position, and therefore the polishing mechanism can polish the flat surface of the cylinder cover; and the interior of the groove of the cylinder cover can be polished, and the efficiency of polishing the surface of the cylinder cover can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of surface treatment of an engine cylinder head, in particular to a material receiving device for surface treatment of an automobile engine cylinder head. Background Art

[0002] During the casting or processing of the automobile engine cylinder head, rough lines, unevenness or tiny flaws may be left on the surface. In order to improve the surface finish of the cylinder head and prevent gaps from forming when the cylinder head is closed and installed, which may cause internal gas leakage, a polishing device is required to process the surface flaws of the cylinder head. The commonly used polishing device in the prior art mainly drives the polishing roller to roll and polish along the surface of the cylinder head through a motor, and then controls the polishing feed amount of the polishing roller through a cylinder.

[0003] As the instruction manual Figure 8 It is a common type of engine cylinder head, and the surface of the cylinder head is provided with local spherical grooves for installing the intake pipe and the exhaust pipe. Currently, most of the polishing rollers moving along the surface of the cylinder head cannot extend to the inside of the local spherical grooves for polishing, and the user needs to use a spherical polishing body such as a grinding wheel to polish and grind inside the grooves for a second time, and polish different positions of the cylinder head surface in batches, which is not conducive to improving the efficiency of the cylinder head surface polishing process. In addition, most of the cylinder head surface polishing devices have a single function and lack a receiving device for timely collecting polishing debris. Summary of the invention

[0004] The object of the present invention is to provide a material receiving device for surface treatment of automobile engine cylinder head to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A material receiving device for surface treatment of a cylinder head of an automobile engine, comprising two external conveyors, the conveyors being used to convey the cylinder head, and further comprising:

[0007] Support mechanisms, two in number, are fixed at the ends of the conveyor at corresponding positions and are used to support the cylinder head of the polishing station;

[0008] A machine platform is arranged between the two supporting mechanisms, and a movable carrier plate is slidably disposed on the top of the machine platform;

[0009] A polishing mechanism, the polishing mechanism comprising two cylinders one fixed to the movable carrier plate, a shaft rotating between the output ends of the two cylinders one, a plurality of polishing rollers fixed to the outer side of the shaft, and a polishing grinding head provided on the outer transmission sleeve of the shaft;

[0010] A material receiving mechanism, used for receiving the debris dropped during the polishing process, the material receiving mechanism comprising a hopper fixed to the movable carrier plate;

[0011] There are two clamping mechanisms, which are respectively fixed at two ends of the machine table and are used to clamp and fix the cylinder head of the polishing station.

[0012] Furthermore, the conveyor comprises two side plates, a plurality of conveying rollers are rotated at equal intervals between the two side plates, and ends of two adjacent conveying rollers are connected by synchronous belt transmission.

[0013] Furthermore, the supporting mechanism comprises two spring telescopic rods both fixed to the conveyor, and a supporting roller is rotated between the output ends of the two spring telescopic rods.

[0014] Furthermore, two electric slide rails are fixed on the top surface of the machine platform, and the outer sides of the electric slide rails are slidably connected with electric sliders fixed to the movable carrier plate.

[0015] Furthermore, a support base rotatably connected to the shaft rod is fixed to the output end of the cylinder 1, and a motor 1 for driving the shaft rod to rotate is fixed to the outer side of the support base.

[0016] Furthermore, two connecting seats which are fixed to the polishing grinding head are sleeved on the outer side of the shaft, and a one-way bearing is sleeved between the connecting seat and the shaft.

[0017] Further, the clamping mechanism comprises:

[0018] A V-shaped seat, fixedly connected to the machine platform, with a second cylinder fixed on the top of the V-shaped seat;

[0019] An extrusion plate is fixed to the output end of cylinder 2;

[0020] A rubber clamp is fixedly connected to the outer side of the extruded plate.

[0021] Further, the material receiving mechanism further comprises:

[0022] A connecting pipe is rotatably connected to the bottom of the hopper, and a gear ring is sleeved and fixed on the outer side of the connecting pipe;

[0023] An L-shaped rod, one end of which is fixedly connected to the movable carrier plate and the other end of which is fixedly provided with a collar;

[0024] The extension pipe is rotatably connected to the bottom of the connecting pipe, and the extension pipe is fixed to the sleeve ring.

[0025] Furthermore, a rack meshing with a gear ring for transmission is slidably connected inside the movable carrier plate, and both ends of the rack are fixedly connected to the machine platform.

[0026] Furthermore, a scraper bar extending into the hopper is fixed inside the connecting pipe, and a hose is connected and fixed to the bottom end of the extension pipe.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The cylinder head is placed between two supporting mechanisms. The output end of the second cylinder holds the cylinder head with two rubber clamps. The output end of the first cylinder moves the shaft upward, so that multiple polishing rollers on the outside of the shaft are close to one end of the cylinder head surface. The motor rotates the shaft to rotate and polish the multiple polishing rollers on the cylinder head surface. The electric slider moves linearly on the electric slide rail to move the moving carrier with the polishing rollers on the shaft from one end of the cylinder head surface to the other end of the cylinder head, so as to polish the smooth outer side of the cylinder head.

[0029] Two connecting seats are connected through a one-way bearing sleeve on the outer side of the middle of the shaft, a polishing grinding head is fixed between the two connecting seats, and the shape of the polishing grinding head is the same as the shape of the local spherical groove on the surface of the cylinder head. When the shaft rotates clockwise, the one-way bearing on the connecting seat idles on the shaft, and when the shaft rotates counterclockwise, the one-way bearing on the connecting seat drives the connecting seat and the polishing grinding head to rotate around the shaft. When the polishing grinding head moves to the lower position of the corresponding spherical groove, the shaft can be driven counterclockwise by a motor to make the shaft rotate through the connecting seat with the polishing grinding head to polish the spherical groove position, thereby realizing synchronous polishing of the spherical groove on the surface of the cylinder head;

[0030] By contracting the length of the second output end of one cylinder and extending the second output end of the other cylinder by the same length, the clamping mechanism can be used to laterally adjust the position of the cylinder head, thereby facilitating the transfer of the cylinder head surface previously arranged above the connecting seat to the position above the polishing roller. The shaft rod then drives the polishing roller to rotate clockwise to polish the previously unpolished area above the connecting seat, thereby achieving all-round polishing of the cylinder head surface, eliminating the need to polish different positions of the cylinder head surface in batches, and helping to improve the efficiency of the cylinder head surface polishing process.

[0031] 2. The surface of the cylinder head to be polished is placed downward on the polishing mechanism, and a hopper is arranged below the polishing mechanism. During the polishing process, the debris dropped from the surface of the cylinder head can be directly collected in the hopper, effectively preventing the polishing debris from remaining on the cylinder head;

[0032] By rotating the connecting pipe at the bottom of the hopper, a gear ring is sleeved on the outside of the connecting pipe. The electric slider moves on the electric slide rail to make the support plate move with the polishing mechanism. During the polishing process, the gear ring meshes and rotates on the outside of the rack to rotate the connecting pipe, and the scraper bar fixed on the connecting pipe rotates on the inside of the hopper, so that the residual debris adhered to the inside of the hopper can be moved into the connecting pipe. The extension pipe at the bottom of the connecting pipe can be connected to the suction end of the external vacuum cleaner through a hose, so that the polishing debris contained in the hopper can be collected in time to ensure a clean and tidy polishing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1It is a schematic diagram of the overall structure of the present invention and the external conveyor;

[0034] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the top structure of the machine in the present invention;

[0036] Figure 4 The present invention Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0037] Figure 5 It is a schematic diagram of the polishing mechanism structure of the present invention;

[0038] Figure 6 It is a structural schematic diagram of the material receiving mechanism in the present invention;

[0039] Figure 7 It is a schematic diagram of the structure in which the polishing roller moves to one end of the cylinder cover in the present invention;

[0040] Figure 8 It is a schematic diagram of the cylinder head body and the partial spherical groove structure in the present invention.

[0041] In the figure: 100, conveyor; 200, supporting mechanism; 210, spring telescopic rod; 220, supporting roller; 300, machine table; 310, movable carrier; 311, rack; 320, electric slide rail; 321, electric slider; 400, polishing mechanism; 410, cylinder one; 411, supporting seat; 420, shaft rod; 421, polishing roller; 422, connecting seat; 430, polishing grinding head; 440, motor one; 500, material receiving mechanism; 510, hopper; 520, connecting pipe; 521, gear ring; 522, scraper; 530, L-shaped rod; 540, extension pipe; 541, hose; 600, clamping mechanism; 610, V-shaped seat; 611, cylinder two; 620, rubber splint; 700, cylinder head body; 710, partial spherical groove. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0043] For example, see Figure 1-Figure 8In an embodiment of the present invention, a material receiving device for surface treatment of a cylinder head of an automobile engine includes two support mechanisms 200 both fixedly connected to an external conveyor 100, the support mechanism 200 is used to support the cylinder head of a polishing station, a machine table 300 is installed between the two support mechanisms 200, a movable carrier plate 310 is slidably disposed on the top of the machine table 300, a polishing mechanism 400 is fixed to the top surface of the movable carrier plate 310, and the polishing mechanism 400 includes two cylinders 410 both fixed to the movable carrier plate 310, and the two cylinders 410 are fixed to the top surface of the movable carrier plate 310. A shaft 420 rotates between the output ends of 410, and a plurality of polishing rollers 421 are fixed on the outer side of the shaft 420. A polishing grinding head 430 is provided on the outer transmission sleeve of the shaft 420. A material receiving mechanism 500 is provided below the polishing mechanism 400. The material receiving mechanism 500 is used to receive the debris dropped during the polishing process. The material receiving mechanism 500 includes a hopper 510 fixed to the movable carrier plate 310. A clamping mechanism 600 is fixed at both ends of the machine platform 300. The clamping mechanism 600 is used to clamp the cylinder cover of the fixed polishing station.

[0044] Specifically, the surface side of the cylinder head to be polished is arranged downward on the polishing mechanism 400, and a hopper 510 is arranged below the polishing mechanism 400 to receive the debris falling during the polishing process and prevent the debris from remaining on the cylinder head. The polishing mechanism 400 includes a plurality of polishing rollers 421 and a polishing grinding head 430. The output end of the cylinder 410 adjusts the feed amount of the plurality of polishing rollers 421 so that the polishing rollers 421 contact the surface of the cylinder head. The movable carrier plate 310 slides on the machine table 300 so that the polishing rollers 421 rotate and polish at the same time. When the polishing mechanism 400 moves linearly on the surface of the cylinder head, it is convenient to polish the flat side of the cylinder head surface. By setting the polishing grinding head 430 and the local spherical groove 710 on the cylinder head to the same shape, when the polishing mechanism 400 moves to the position directly below the spherical groove, the polishing grinding head 430 can be driven by the shaft 420 to rotate the polishing spherical groove position, so that the polishing mechanism 400 can move linearly during the polishing process to polish the flat surface of the cylinder head and the inside of the cylinder head groove, which is beneficial to improve the efficiency of the cylinder head surface polishing process.

[0045] like Figure 1 and Figure 2 As shown, in this embodiment, the conveyor 100 includes two side plates, a plurality of conveying rollers are rotated at equal intervals between the two side plates, the ends of two adjacent conveying rollers are connected by a synchronous belt transmission, a synchronous belt pulley is fixed at one end of the conveying roller, and the two adjacent synchronous belt pulleys are connected by a synchronous belt transmission.

[0046] In this embodiment, when an external motor 2 drives a conveying roller to rotate, multiple conveying rollers will rotate simultaneously, which makes it convenient to use the conveying rollers to convey the moving cylinder head. Among them, one conveyor 100 can be used to convey the cylinder head to the polishing station between the two supporting mechanisms 200, and the other conveyor 100 can be used to convey the polished cylinder head out. The conveyor 100 is a prior art equipment, and the specific working principle will not be elaborated.

[0047] like Figure 1 As shown, when the polished cylinder head needs to be transported to the polishing station, the polished side of the cylinder head is placed facing down on the conveying roller of the left conveyor 100, and the electric slider 321 of the prior art component is used to slide on the electric slide rail 320 to make the movable carrier 310 with multiple polishing rollers 421 on the polishing mechanism 400 move linearly to a position close to the feeding conveyor 100, and the conveying roller rotates to transport the cylinder head to a support roller 220 and multiple polishing rollers 421, as the cylinder head continues to move to the position between the two support rollers 220, the polishing roller 421 moves to the middle position between the two support rollers 220 after contacting the cylinder head, and the polishing roller 421 can be rotated at the same time. At this time, the rotating polishing roller 421 plays the role of transporting the cylinder head to the polishing position, and finally the two ends of the cylinder head are placed on the support rollers 220, and the polishing mechanism 400 is supported in the middle position of the cylinder head surface, and then the two clamping mechanisms 600 can be driven to clamp and fix the cylinder head at the polishing station for standby.

[0048] like Figure 1 and Figure 2 As shown, in this embodiment, the support mechanism 200 includes two spring telescopic rods 210, both of which are fixed to the conveyor 100, and a support roller 220 is rotated between the output ends of the two spring telescopic rods 210. The spring telescopic rod 210 is a prior art component, mainly including a sleeve, a sliding rod sliding inside the sleeve, and a return spring fixed between the sliding rod and the sleeve. After the sliding rod is squeezed into the sleeve, the elastic force of the return spring can make the sliding rod automatically move out along the sleeve.

[0049] like Figure 7 As shown, in this embodiment, when the electric slider 321 drives the polishing roller 421 on the polishing mechanism 400 to move to one end of the cylinder head for polishing along the electric slide rail 320, the support roller 220 is squeezed by the polishing roller 421 to shrink with the spring telescopic rod 210, so that the support roller 220 leaves the surface of the cylinder head, leaving space for the polishing roller 421 to polish. When the polishing roller 421 leaves the end of the cylinder head, the restoring elastic force of the spring telescopic rod 210 causes the support roller 220 to move toward the end of the cylinder head again, and be supported on one end of the cylinder head again, so that the cylinder head of the polishing station can be stably supported above the polishing mechanism 400.

[0050] like Figure 3As shown, in this embodiment, two electric slide rails 320 are fixed on the top surface of the machine platform 300 , and the outer sides of the electric slide rails 320 are slidably connected with electric sliders 321 fixed to the movable carrier plate 310 .

[0051] In this embodiment, the electric slider 321 can move linearly on the electric slide rail 320, so that the movable carrier 310 can carry the polishing mechanism 400 to move linearly on the surface of the cylinder head, which is convenient for polishing different positions on the surface of the cylinder head. The sliding of the electric slider 321 on the electric slide rail 320 is an existing technology, and the specific working principle will not be elaborated.

[0052] like Figure 7 As shown, in this embodiment, a support seat 411 rotatably connected to the shaft 420 is fixed to the output end of the cylinder 410 , and a motor 440 for driving the shaft 420 to rotate is fixed to the outer side of the support seat 411 .

[0053] In this embodiment, when it is necessary to rotate multiple polishing rollers 421 individually to polish the flat surface of the cylinder head, the output end of the motor 440 drives the shaft 420 to rotate clockwise, and the shaft 420 drives multiple polishing rollers 421 to rotate and polish on the surface of the cylinder head. When it is necessary to drive multiple polishing rollers 421 to polish the local spherical groove 710 on the surface of the cylinder head, the output end of the motor 440 drives the shaft 420 to rotate counterclockwise, and under the transmission action of the one-way bearing, the connecting seat 422 drives the polishing grinding head 430 to rotate along with the shaft 420, and the polishing grinding head 430 rotates to the groove position to facilitate the polishing of the groove position on the surface of the cylinder head.

[0054] like Figure 5 As shown, in this embodiment, two connecting seats 422 are sleeved on the outer side of the shaft 420, both of which are fixed to the polishing grinding head 430, and a one-way bearing is sleeved between the connecting seat 422 and the shaft 420. When the shaft 420 rotates clockwise, the one-way bearing causes the connecting seat 422 to idle on the shaft 420. When the shaft 420 rotates clockwise, the one-way bearing causes the connecting seat 422 to rotate on the shaft 420. The polishing grinding head 430 can be controlled to rotate and polish by changing the rotation direction of the shaft 420.

[0055] like Figure 3 As shown, in this embodiment, the clamping mechanism 600 includes a V-shaped seat 610 fixedly connected to the machine table 300, a cylinder 2 611 is fixed on the top of the V-shaped seat 610, an extrusion plate is fixed on the output end of the cylinder 2 611, and a rubber clamp 620 is fixedly connected to the outer side of the extrusion plate.

[0056] In this embodiment, when the cylinder head needs to be fixed at the polishing station, the output ends of the two cylinders 611 can be extended to the same length, and the cylinder head can be clamped and fixed by two rubber clamps 620 close to each other. When the cylinder head needs to be moved along the direction of the output end of the cylinder 611 so that the position corresponding to the connecting seat 422 on the cylinder head is polished, the output end of any one of the cylinders 611 can be contracted, and at the same time, the output end of the other cylinder 611 can be extended to the same length, so that the cylinder head can be longitudinally moved between the two rubber clamps 620, so that the position below the corresponding connecting seat 422 on the cylinder head can be transferred to the top of the polishing roller 421 for polishing and standby. The rubber clamp 620 has a soft characteristic and can protect the cylinder head during the process of clamping and fixing the cylinder head. A groove is provided on the outer side of the rubber clamp 620, and the groove can be clamped to the top of the edge of the cylinder head, so that the clamped and fixed cylinder head is more firm and stable.

[0057] Embodiment 2 is based on Embodiment 1 and is intended to quickly collect the polishing debris adhered to the inner side of the hopper 510 into the interior of the connecting pipe 520 .

[0058] like Figure 6 As shown, in this embodiment, the material receiving mechanism 500 also includes a connecting tube 520 which is rotatably connected to the bottom of the hopper 510, a gear ring 521 is fixedly sleeved on the outer side of the connecting tube 520, the interior of the movable carrier plate 310 is slidably connected to a rack 311 which meshes with the gear ring 521 for transmission, both ends of the rack 311 are fixedly connected to the machine 300, and a scraper strip 522 extending into the interior of the hopper 510 is fixedly disposed inside the connecting tube 520.

[0059] Specifically, during the movement of the movable carrier 310 along the electric slide rail 320, the gear ring 521 inside the movable carrier 310 meshes and rotates on the rack 311, and the gear ring 521 rotates with the connecting tube 520, and the connecting tube 520 rotates with the scraper 522 inside the hopper 510 to scrape the hopper 510, so as to quickly transfer the polishing debris attached to the inner side of the hopper 510 to the inside of the connecting tube 520, wherein the outer side of the scraper 522 is sleeved with a rubber sleeve, so as to flexibly contact the inner side of the hopper 510 and protect the hopper 510, and an annular chamber for the gear ring 521 to rotate is provided inside the movable carrier 310, and a rectangular through hole for the rack 311 to slide is provided inside the movable carrier 310.

[0060] like Figure 2 and Figure 6 As shown, in this embodiment, an L-shaped rod 530 is provided on the outside of the extension tube 540, the top of the L-shaped rod 530 is fixedly connected to the movable carrier plate 310, and a ring is fixed at the bottom of the L-shaped rod 530, and the ring is fixed on the outside of the extension tube 540, and the bottom end of the extension tube 540 is connected and fixed with a hose 541.

[0061] In this embodiment, the L-shaped rod 530 is fixed on the movable carrier plate 310, so that the L-shaped rod 530 can rotate the extension tube 540 through the ring and insert it into the connecting tube 520, so that the extension tube 540 will not rotate during the rotation of the connecting tube 520. The bottom end of the extension tube 540 is connected to a fixed hose 541, and the hose 541 can be connected to the suction end of an external vacuum cleaner, so as to clean the polishing debris collected inside the connecting tube 520 in time.

[0062] like Figure 2 As shown, in this embodiment, a rectangular hole is opened through the middle of the machine 300. During the moving polishing process of the polishing mechanism 400, the hose 541 moves with the hopper 510 at the position of the rectangular hole to collect polishing debris generated by the polishing mechanism 400 in the moving state.

[0063] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A material receiving device for surface treatment of automobile engine cylinder heads, comprising two external conveyors (100), the conveyors (100) being used for conveying cylinder heads, characterized in that: Also includes: Two supporting mechanisms (200) are respectively fixed at the ends of the conveyor (100) at corresponding positions and are used to support the cylinder cover of the polishing station; A machine platform (300) is arranged between the two supporting mechanisms (200), and a movable carrier plate (310) is slidably disposed on the top of the machine platform (300); The polishing mechanism (400) comprises two cylinders (410) fixed to the movable carrier plate (310), a shaft (420) rotating between the output ends of the two cylinders (410), a plurality of polishing rollers (421) fixed to the outer side of the shaft (420), and a polishing grinding head (430) provided on the outer transmission sleeve of the shaft (420); A material receiving mechanism (500) is used to receive debris dropped during the polishing process, and the material receiving mechanism (500) comprises a hopper (510) fixed to the movable carrier plate (310); There are two clamping mechanisms (600), which are respectively fixed at two ends of the machine platform (300) and are used to clamp and fix the cylinder cover of the polishing station.

2. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: The conveyor (100) comprises two side plates, a plurality of conveying rollers are rotatably arranged between the two side plates at equal intervals, and the ends of two adjacent conveying rollers are connected by synchronous belt transmission.

3. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: The supporting mechanism (200) comprises two spring telescopic rods (210) both fixed to the conveyor (100), and a supporting roller (220) is rotatably arranged between the output ends of the two spring telescopic rods (210).

4. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: Two electric slide rails (320) are fixed on the top surface of the machine platform (300), and the outer sides of the electric slide rails (320) are slidably connected with electric sliders (321) fixed to the movable carrier plate (310).

5. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: A support seat (411) rotatably connected to the shaft (420) is fixed to the output end of the cylinder 1 (410), and a motor 1 (440) for driving the shaft (420) to rotate is fixed to the outer side of the support seat (411).

6. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: Two connecting seats (422) fixed to the polishing grinding head (430) are sleeved on the outer side of the shaft (420), and a one-way bearing is sleeved between the connecting seat (422) and the shaft (420).

7. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: The clamping mechanism (600) comprises: A V-shaped seat (610) is fixedly connected to the machine platform (200), and a second cylinder (611) is fixed on the top of the V-shaped seat (610); An extrusion plate is fixed to the output end of the second cylinder (611); The rubber clamping plate (620) is fixedly connected to the outer side of the extrusion plate.

8. The material receiving device for surface treatment of automobile engine cylinder head according to claim 1, characterized in that: The material receiving mechanism (500) further comprises: A connecting pipe (520) is rotatably connected to the bottom of the hopper (510), and a gear ring (521) is sleeved and fixed on the outer side of the connecting pipe (520); An L-shaped rod (530), one end of which is fixedly connected to the movable carrier plate (310) and the other end of which is fixedly provided with a collar; The extension tube (540) is rotatably connected to the bottom of the connection tube (520), and the extension tube (540) is fixed to the collar.

9. The material receiving device for surface treatment of automobile engine cylinder head according to claim 8, characterized in that: The interior of the movable carrier plate (310) is slidably connected with a rack (311) meshing with the gear ring (521) for transmission, and both ends of the rack (311) are fixedly connected to the machine platform (300).

10. The material receiving device for surface treatment of automobile engine cylinder head according to claim 9, characterized in that: A scraper bar (522) extending into the hopper (510) is fixed inside the connecting pipe (520), and a hose is connected and fixed at the bottom end of the extension pipe (540).

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