Inner wall chamfering structure for automobile valve seat ring production

Abstract

The utility model discloses an inner wall chamfering structure for automobile valve seat ring production, which relates to the technical field of automobile valve seat ring production, and comprises a processing table, an accessory box is arranged at the edge of the top of the processing table, an overturning groove is formed in the center of the front surface of the accessory box, and a lifting groove communicated with the upper end and the lower end of the overturning groove is formed in the front surface of the accessory box. When the inner wall of the automobile valve seat ring is chamfered, after a set of grinding heads finish chamfering operation, in the rising process of the grinding heads, an electric shaft drives a reversing gear to be meshed with a driving rack, the reversing gear is made to rotate by 180 degrees, and therefore the grinding heads which are just used are turned upwards, and the grinding heads which are not used are turned downwards to make preparations for next chamfering; the two sets of grinding heads are turned over circularly, sufficient heat dissipation time can be reserved for the grinding heads for chamfering every time after chamfering is finished, the device does not need to be stopped, the machining efficiency of the device is guaranteed, and great convenience is provided for production work.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile valve seat ring production, in particular to an inner wall chamfering structure for automobile valve seat ring production. Background Art

[0002] The automobile valve seat is the part of the cylinder head that fits with the valve cone surface. Its main function is to ensure the sealing between the valve and the cylinder head to prevent gas leakage. During the operation of the engine, the valve seat is not only subjected to a high temperature and high pressure environment, but also to extremely high frequency impact loads. Therefore, it is very easy to wear. In order to cope with this wear, many automobile cylinder heads will be inlaid with valve seat rings made of alloy cast iron, powder metallurgy or austenitic steel. This design can extend the service life of the cylinder head while improving the performance and reliability of the engine.

[0003] During the production process of automobile valve seat rings, it is often necessary to chamfer the inner wall of the automobile valve seat ring to meet the subsequent installation requirements. During the grinding and chamfering process, the existing inner wall chamfering structure for automobile valve seat ring production is very likely to overheat and cause damage to the equipment due to the continuous friction between the grinding head and the automobile valve seat ring. If you want to ensure that the grinding head does not overheat, most of them will adopt an intermittent shutdown method. However, intermittent shutdowns undoubtedly reduce the production efficiency of the device and cause many inconveniences to production work. Utility Model Content

[0004] The utility model aims to provide an inner wall chamfering structure for automobile valve seat production to solve the technical problems mentioned in the above background technology.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] An inner wall chamfering structure for automobile valve seat production, including a processing table;

[0007] An accessory box is arranged at the top edge of the processing table, a flip groove is arranged in the center of the front side of the accessory box, a lifting groove communicating with the upper and lower ends of the flip groove is arranged on the front side of the accessory box, a reversing gear is rotatably arranged on the front wall of the accessory box, a driving rack matching the reversing gear is arranged on the front wall of the accessory box, a support rod is connected to the side of the reversing gear close to the lifting groove, a socket is sleeved on one end of the support rod, and a fixing plate is rotatably connected to the inside of the socket.

[0008] As a further solution of the utility model: the width of the reversing gear is larger than the flip groove, the driving rack is located on one side of the flip groove, an electric shaft for controlling the movement of the driving rack is provided on the inner wall of one side of the accessory box, one end of the support rod passes through the interior of the lifting groove, and the outer side of the support rod is in contact with the inner wall of the lifting groove.

[0009] As a further solution of the utility model: one end of the fixing plate close to the sleeve seat is a cylinder and is connected to one end of the support rod.

[0010] As a further solution of the utility model: a double-headed motor is arranged inside the fixing plate, and grinding heads are connected to both ends of the double-headed motor.

[0011] As a further solution of the utility model: a supporting cross plate is connected to one side of the top of the accessory box, a lifting cylinder is arranged on the top of the supporting cross plate, and the bottom end of the lifting cylinder is connected to the top of the socket.

[0012] As a further solution of the utility model: a limiting groove is provided on one side of the top of the accessory box away from the supporting horizontal plate, a blocking plate is movably connected inside the limiting groove, and a baffle is provided on the top of the blocking plate.

[0013] Beneficial effects of the utility model:

[0014] When the utility model chamfers the inner wall of a valve seat ring of an automobile, after one group of grinding heads completes the chamfering operation, during their rising process, the electric shaft drives the reversing gear to engage with the driving rack, causing the reversing gear to rotate 180 degrees, thereby flipping the grinding head just used upward, and flipping the unused grinding head downward to prepare for the next chamfering. The two groups of grinding heads flip cyclically, and sufficient heat dissipation time can be reserved for the grinding heads performing chamfering after each chamfering is completed. There is no need to stop the device, thereby ensuring the processing efficiency of the device and providing great convenience for production work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the flip tank in the utility model;

[0018] Figure 3 It is a schematic diagram of the reversing gear structure in the utility model.

[0019] In the figure: 1. Processing table; 2. Accessory box; 3. Flip slot; 4. Lifting slot; 5. Reversing gear; 6. Driving rack; 7. Support rod; 8. Socket seat; 9. Fixed plate; 10. Double-head motor; 11. Grinding head; 12. Support cross plate; 13. Lifting cylinder; 14. Limiting slot; 15. Sealing plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-3 As shown, the inner wall chamfering structure for automobile valve seat ring production includes a processing table 1, which is the main structure of the device and provides a placement position for the automobile valve seat ring, so as to facilitate the staff to perform inner wall chamfering operations. An accessory box 2 is arranged at the top edge of the processing table 1, a turning groove 3 is opened in the center of the front of the accessory box 2, and a lifting groove 4 connected with the upper and lower ends of the turning groove 3 is opened on the front of the accessory box 2. A reversing gear 5 is rotatably arranged on the front wall of the accessory box 2, and a driving rack 6 matching the reversing gear 5 is arranged on the front wall of the accessory box 2. The width of the reversing gear 5 is larger than the turning groove 3, and the driving rack 6 is located on one side of the turning groove 3. An electric shaft for controlling the movement of the driving rack 6 is arranged on the inner wall of one side of the accessory box 2, and a support rod 7 is connected to the side of the reversing gear 5 close to the lifting groove 4, one end of the support rod 7 passes through the interior of the lifting groove 4, and the outer side of the support rod 7 contacts with the inner wall of the lifting groove 4, and one end of the support rod 7 is sleeved with a socket seat 8, and the interior of the socket seat 8 is rotatably connected with a fixing plate 9, so that the support rod 7 can be moved up and down. When the gear 5 is moved upward, the electric shaft drives the reversing gear 5 to mesh with the driving rack 6, thereby the reversing gear 5 can be rotated by the driving rack 6. Whenever the reversing gear 5 passes over the driving rack 6 once, the reversing gear 5 can be rotated 180 degrees. At this time, the support rod 7 drives the fixed plate 9 to flip together. The flip groove 3 and the lifting groove 4 provide a space for the movement of the support rod 7, ensuring the smooth movement of the support rod 7, and the lifting groove 4 can form a limit for the support rod 7 to ensure that the support rod 7 will not deflect during movement. The end of the fixed plate 9 close to the socket seat 8 is a cylinder and is connected to one end of the support rod 7, thereby ensuring that the fixed plate 9 can smoothly rotate with 7. A supporting cross plate 12 is connected to one side of the top of the accessory box 2, and a lifting cylinder 13 is arranged on the top of the supporting cross plate 12. The bottom end of the lifting cylinder 13 is connected to the top of the socket seat 8, and the socket seat 8 is driven by the lifting cylinder 13 to move up and down, thereby driving the support rod 7 to move up and down.

[0022] In the present embodiment, specifically, a double-headed motor 10 is disposed inside the fixing plate 9, and grinding heads 11 are connected to both ends of the double-headed motor 10. The fixing plate 9 is used to install the double-headed motor 10, forming a suspension support for it, thereby ensuring the stability of the double-headed motor 10 when working. The double-headed motor 10 drives the grinding head 11 to rotate at a high speed to achieve the purpose of chamfering the inner wall of the automobile valve seat ring.

[0023] In the present embodiment, specifically, a limiting groove 14 is provided on one side of the top of the accessory box 2 away from the supporting horizontal plate 12, and a sealing plate 15 is movably connected inside the limiting groove 14. A baffle is provided on the top of the sealing plate 15, and the accessory box 2 is sealed and protected by the sealing plate 15, so that an independent space is formed inside the accessory box 2, thereby ensuring the smooth rotation of the reversing gear 5, and also facilitating subsequent staff to remove the sealing plate 15 for inspection and maintenance of the interior of the accessory box 2.

[0024] The working principle of the utility model is as follows: when the device is in use, the automobile valve seat ring is first placed on the processing point on the processing table 1, and then the lifting cylinder 13 is started to drive the socket seat 8 to move, and the double-headed motor 10 is started to drive the grinding head 11 to rotate at high speed to realize the inner wall chamfering of the automobile valve seat ring. After the inner wall chamfering operation is completed, the socket seat 8 rises, and the electric shaft drives the reversing gear 5 to engage with the driving rack 6, thereby driving the rack 6 to make the reversing gear 5 rotate 180 degrees. At this time, the support rod 7 drives the fixed plate 9 to flip together, and the double-headed motor 10 and the grinding head 11 just used are flipped to the top, so that another set of double-headed motors 10 and grinding heads 11 are turned down. At this time, the electric shaft is recovered, and the reversing gear 5 leaves the driving rack 6, thereby performing a new set of chamfering operations.

[0025] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An inner wall chamfering structure for automobile valve seat production, comprising a processing table (1); characterized in that: An accessory box (2) is arranged at the top edge of the processing table (1), a turning groove (3) is arranged at the center of the front of the accessory box (2), a lifting groove (4) communicating with the upper and lower ends of the turning groove (3) is arranged at the front of the accessory box (2), a reversing gear (5) is rotatably arranged on the front wall of the accessory box (2), a driving rack (6) matching the reversing gear (5) is arranged on the front wall of the accessory box (2), a support rod (7) is connected to the side of the reversing gear (5) close to the lifting groove (4), one end of the support rod (7) is sleeved with a socket seat (8), and a fixing plate (9) is rotatably connected inside the socket seat (8).

2. The inner wall chamfering structure for automobile valve seat production according to claim 1, characterized in that: The width of the reversing gear (5) is greater than that of the flip groove (3); the driving rack (6) is located on one side of the flip groove (3); an electric shaft for controlling the movement of the driving rack (6) is provided on an inner wall of one side of the accessory box (2); one end of the support rod (7) passes through the interior of the lifting groove (4), and the outer side of the support rod (7) is in contact with the inner wall of the lifting groove (4).

3. The inner wall chamfering structure for automobile valve seat production according to claim 1, characterized in that: One end of the fixing plate (9) close to the sleeve seat (8) is cylindrical and is connected to one end of the support rod (7).

4. The inner wall chamfering structure for automobile valve seat production according to claim 1, characterized in that: A double-headed motor (10) is arranged inside the fixing plate (9), and grinding heads (11) are connected to both ends of the double-headed motor (10).

5. The inner wall chamfering structure for automobile valve seat production according to claim 1, characterized in that: A supporting transverse plate (12) is connected to one side of the top of the accessory box (2), a lifting cylinder (13) is provided on the top of the supporting transverse plate (12), and the bottom end of the lifting cylinder (13) is connected to the top of the socket (8).

6. The inner wall chamfering structure for automobile valve seat production according to claim 1, characterized in that: A limiting groove (14) is provided on a side of the top of the accessory box (2) away from the supporting horizontal plate (12), a sealing plate (15) is movably connected inside the limiting groove (14), and a baffle is provided on the top of the sealing plate (15).

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