Anti-falling mechanism for automobile hub machining

Abstract

The utility model discloses an anti-falling mechanism for automobile hub machining, which comprises a bottom connecting shaft, a lower tray sheet is welded and fixed in the middle of the top surface of the bottom connecting shaft, and an upper tray sheet is fixed above the lower tray sheet; a center concave hole is formed in the middle of the top face of the lower tray piece, a plurality of stepped through holes with the large upper inner diameter and the small lower inner diameter are formed in the portion, around the center concave hole, of the top face of the lower tray piece, correspondingly, an upper center concave hole is formed in the middle of the bottom face of the upper tray piece, and an upper center through hole is formed in the middle of the top face of the upper center concave hole. An upper step through hole extending upwards is formed in the bottom face, corresponding to each step through hole, of the upper tray piece. When the hub is placed on the upper tray piece, the positioning pin at the pressing position of the hub can retract, and the top of the positioning pin at the non-pressing position can limit the hub, so that the hub cannot fall off from the upper tray piece, the hub cannot be damaged, surrounding running parts cannot be damaged, and normal running of hub equipment is guaranteed.

Description

Technical fields:

[0001] This utility model relates to the field of automotive parts technology, and more specifically to an anti-fall mechanism for automotive wheel hub processing. Background technology:

[0002] With the widespread adoption of automation, the traditional single-line spraying and baking process has been replaced by a robotic arm-based baking line after spraying. This separation of the spraying and baking lines significantly improves the cleanliness inside the oven, enhancing the surface quality and yield of the wheel hubs.

[0003] Then, due to the secondary centering eccentricity after the robotic arm transfer and the stability of the chain travel, some wheel hubs placed on the pallet of the subsequent conveying mechanism after transfer may fall off during processing or conveying because the pallet is a flat structure and is eccentric when placed. In mild cases, the wheel hubs are scrapped, and in severe cases, the chain is damaged and the line needs to be stopped for maintenance, which brings great safety hazards to production.

[0004] At the same time, since the shapes and installation dimensions of wheel hubs vary, making special tooling would significantly increase production costs, and frequent tooling changes would also affect labor efficiency and increase the labor intensity of employees. Utility Model Content:

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an anti-fall mechanism for automobile wheel hub processing. When the wheel hub is placed on the upper pallet, the positioning pin at the pressing point will retract, while the top of the positioning pin at the non-pressing point will limit the wheel hub, so that the wheel hub will not fall off the upper pallet, thus preventing it from being damaged or causing damage to the surrounding operating parts, and ensuring the normal operation of the wheel hub equipment.

[0006] The solution of this utility model to the aforementioned technical problem is:

[0007] A shockproof mechanism for automobile wheel hub processing includes a bottom connecting shaft, a lower pallet plate welded and fixed to the middle of the top surface of the bottom connecting shaft, and an upper pallet plate fixed above the lower pallet plate.

[0008] The lower tray has a central recessed hole formed in the center of its top surface. Around this central recessed hole, multiple stepped through holes with larger upper inner diameters and smaller lower inner diameters are formed on the top surface of the lower tray. Correspondingly, the upper tray has an upper central recessed hole formed in the center of its bottom surface, and an upper central through hole formed in the center of the top surface of the upper central recessed hole. Each stepped through hole corresponds to an upwardly extending upper stepped through hole formed on the bottom surface of the upper tray. The lower part of the upper stepped through hole is a large-diameter section, and the upper part is a small-diameter section. The two ends of the edge positioning sleeve are located within the upper and lower sections of the corresponding stepped through holes. The two ends of the center positioning sleeve are located within... In the corresponding central recess and upper central recess, the positioning pin is inserted into the corresponding side positioning sleeve or middle positioning sleeve. A radially extending edge is formed on the middle outer wall of the positioning pin. The top surface of the radially extending edge presses against the top surface of the corresponding upper central recess or the top surface of the large-diameter hole section of the upper stepped through hole. The top of the positioning pin extends out of the top of the corresponding upper central through hole or the top of the upper stepped through hole. An adjusting spring is inserted into the lower part of the positioning pin. The top of the adjusting spring applies force to the bottom surface of the radially extending edge, and the bottom end applies force to the top surface of the annular protrusion formed on the lower inner wall of the middle positioning sleeve or the side positioning sleeve.

[0009] The adjusting spring sleeve is located in the side positioning sleeve or the middle positioning sleeve.

[0010] The central through hole of the annular protrusion is aligned with the lower small-diameter section of the corresponding stepped through hole.

[0011] The upper tray plate has multiple connecting through holes formed at its edge, and the lower tray plate corresponding to the connecting through holes has a lower through hole formed. The top of the positioning screw is inserted into the corresponding connecting through hole, and its outer side wall is in close contact with the inner side wall of the corresponding connecting through hole. A radially extending connecting ring is formed on the upper outer side wall of the positioning screw, and the top surface of the connecting ring is pressed against the bottom surface of the upper tray plate and welded to fix it.

[0012] The lower part of the positioning screw extends out of the bottom end of the corresponding lower through hole and is screwed with two locking nuts that press against each other.

[0013] The top of the locating pin is spherical.

[0014] The outstanding effect of this utility model is:

[0015] Compared with existing technologies, this technology allows the locating pin at the pressing point of the wheel hub to retract when it is placed on the upper pallet plate, while the top of the locating pin at the non-pressing point will limit the wheel hub, preventing it from falling off the upper pallet plate and thus avoiding damage to the surrounding operating parts, ensuring the normal operation of the wheel hub equipment. Attached image description:

[0016] Figure 1 This is a partial structural schematic diagram of the present invention;

[0017] Figure 2 This is a partial top view of the present invention. Detailed implementation method:

[0018] For example, see below. Figures 1 to 2 As shown, an anti-fall mechanism for automobile wheel hub processing includes a bottom connecting shaft 10, a lower pallet plate 11 is welded and fixed to the middle of the top surface of the bottom connecting shaft 10, and an upper pallet plate 12 is fixed above the lower pallet plate 11.

[0019] The lower tray 11 has a central recessed hole 13 formed in the middle of its top surface, and a lower central through hole formed in the middle of the bottom surface of the central recessed hole 13. The bottom end of the lower central through hole is connected to and aligned with the main central recessed hole formed in the middle of the top surface of the bottom connecting shaft 10.

[0020] Multiple stepped through holes 14 with larger upper inner diameter and smaller lower inner diameter are formed on the top surface of the lower tray piece 11 around the central recess 13. In this embodiment, there are four stepped through holes 14, which are evenly distributed around the central recess 13 of the lower tray piece 11 with the central axis of the lower tray piece 11 as the center.

[0021] The bottom surface of the corresponding upper tray 12 has an upper central recess 15 formed in the center, and the top surface of the upper central recess 15 has an upper central through hole 151 formed in the center. The bottom surface of each stepped through hole 14 of the upper tray 12 has an upwardly extending upper stepped through hole 16 formed. The lower part of the upper stepped through hole 16 is a large-diameter hole segment, and the upper part is a small-diameter hole segment. The two ends of the edge positioning sleeve 20 are located in the upper hole segment of the corresponding stepped through hole 14 and the lower hole segment of the upper stepped through hole 16. The two ends of the middle positioning sleeve 30 are located in the corresponding central recess 13 and the upper central recess 15. The positioning pin 40 is inserted into the corresponding edge positioning. In the sleeve 20 or the middle positioning sleeve 30, a radially extending edge 41 is formed on the middle outer side wall of the positioning pin 40. The top surface of the radially extending edge 41 presses against the top surface of the corresponding upper central concave hole 15 or the top surface of the large-diameter hole section of the upper stepped through hole 16. The top of the positioning pin 40 extends out of the top of the corresponding upper central through hole 151 or the top of the upper stepped through hole 16. An adjusting spring 1 is inserted into the lower part of the positioning pin 40. The top of the adjusting spring 1 is applied to the bottom surface of the radially extending edge 41, and the bottom end is applied to the top surface of the annular protrusion 2 formed on the lower inner side wall of the middle positioning sleeve 30 or the side positioning sleeve 20.

[0022] The lower part of the locating pin 40 in the middle corresponds to the lower central through hole and the main central recess, and its outer side wall is smaller than the inner side wall of the lower central through hole and the main central recess.

[0023] The adjusting spring 1 is inserted into the side positioning sleeve 20 or the middle positioning sleeve 30.

[0024] Furthermore, the central through hole of the annular protrusion 2 is aligned with the lower small-diameter section of the corresponding stepped through hole 14, and the bottom end of the positioning pin 40 is inserted into the central through hole of the annular protrusion 2. The outer diameters of the upper and lower parts of the positioning pin 40 are smaller than the central through hole of the corresponding annular protrusion 2, the lower small-diameter section of the corresponding stepped through hole 14, the upper small-diameter section of the corresponding upper stepped through hole 16, the corresponding lower central through hole, and the corresponding upper central through hole 151.

[0025] The upper tray 12 has multiple connecting through holes 17 formed on its edge. In this embodiment, there are four connecting through holes 17, which are evenly distributed on the edge of the upper tray 12 with the central axis of the upper tray 12 as the center.

[0026] A lower through hole 18 is formed at the lower tray piece 11 corresponding to the connecting through hole 17. The top of the positioning screw 50 is inserted into the corresponding connecting through hole 17, and its outer side wall is in close contact with the inner side wall of the corresponding connecting through hole 17. A radially extending connecting ring part 51 is formed on the upper outer side wall of the positioning screw 50. The top surface of the connecting ring part 51 is pressed against the bottom surface of the upper tray piece 12 and welded to fix it.

[0027] The lower part of the positioning screw 50 extends out of the bottom end of the corresponding lower through hole 18 and is screwed with two locking nuts 3 that press against each other. The top surface of the upper nut 3 presses against the bottom surface of the lower tray plate 12.

[0028] The top surface of the middle positioning sleeve 30 presses against the bottom surface of the central recess 13, and its outer side wall is close to the inner side wall of the central recess 13. The top surface of the middle positioning sleeve 30 presses against the top surface of the upper central recess 15, and the top outer side wall of the middle positioning sleeve 30 is close to the inner side wall of the upper central recess 15.

[0029] Furthermore, the top surface of the edge positioning sleeve 20 presses against the top surface of the lower section of the upper stepped through hole 16, and its outer side wall is close to the inner side wall of the lower section of the upper stepped through hole 16. The bottom surface of the edge positioning sleeve 20 presses against the bottom surface of the upper section of the stepped through hole 14, and its outer side wall is close to the inner side wall of the upper section of the stepped through hole 14.

[0030] Furthermore, the top of the locating pin 40 is spherical. Because it is spherical, when the bottom surface of the hub of the wheel hub presses against the top surface of the upper tray plate 12, the top of the locating pin 40 is in point contact, resulting in minimal or no wear between the two, thus ensuring the quality of the wheel hub.

[0031] In this embodiment, the bottom connecting shaft 10 is mounted on a chain. The chain runs, causing the bottom connecting shaft 10 to move and driving the components on it to be transported along with the chain.

[0032] When the robotic arm places the wheel hub onto the upper pallet 12, the bottom surface of the hub presses against the top of some corresponding positioning pins 40, causing the positioning pins 40 to retract. During placement, the buffering effect of the spring 1 is adjusted to prevent the hub from hitting the top surface of the upper pallet 12, reducing friction and wear. If the placement is accurate, the surrounding positioning pins 40 are generally pressed down, and the upper part of the central positioning pin 40 is in the central through hole of the hub, achieving a limit. At this time, no matter how the hub moves horizontally, it can be limited by the upper part of the central positioning pin 40, making it less likely to fall off.

[0033] When there is a certain offset during placement, the upper part of part of the positioning pin 40 is in the central through hole of the hub, which achieves the limit. At this time, the upper part of the corresponding positioning pin 40 is limited, and the hub will not fall off.

[0034] In this embodiment, as long as the upper part of a portion of the positioning pin 40 is in the central through hole of the hub, the hub will not fall off, ensuring that it is properly placed and can move and operate.

[0035] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A shock-proof mechanism for automobile wheel hub processing, comprising a bottom connecting shaft (10), characterized in that: The bottom connecting shaft (10) has a lower tray piece (11) welded and fixed in the middle of its top surface, and an upper tray piece (12) is fixed above the lower tray piece (11). The lower tray (11) has a central recessed hole (13) formed in the middle of its top surface. Multiple stepped through holes (14) with larger upper inner diameters and smaller lower inner diameters are formed on the top surface of the lower tray (11) surrounding the central recessed hole (13). The corresponding upper tray (12) has an upper central recessed hole (15) formed in the middle of its bottom surface. An upper central through hole (151) is formed in the middle of the top surface of the upper central recessed hole (15). Each stepped through hole (14) corresponds to an upwardly extending upper stepped through hole (16) formed on the bottom surface of the upper tray (12). The lower part of the upper stepped through hole (16) is a large-diameter section, and the upper part is a small-diameter section. The two ends of the edge positioning sleeve (20) are located in the upper section of the corresponding stepped through hole (14) and the lower section of the corresponding upper stepped through hole (16). The two ends of the middle positioning sleeve (30) are located in the corresponding middle section. In the central recess (13) and the upper central recess (15), the positioning pin (40) is inserted into the corresponding side positioning sleeve (20) or the middle positioning sleeve (30). A radial extension edge (41) is formed on the middle outer side wall of the positioning pin (40). The top surface of the radial extension edge (41) presses against the top surface of the corresponding upper central recess (15) or the top surface of the large diameter hole section of the upper stepped through hole (16). The top of the positioning pin (40) extends out of the top of the corresponding upper central through hole (151) or the top of the upper stepped through hole (16). An adjusting spring (1) is inserted into the lower part of the positioning pin (40). The top of the adjusting spring (1) is applied to the bottom surface of the radial extension edge (41), and the bottom is applied to the top surface of the annular protrusion (2) formed on the lower inner side wall of the middle positioning sleeve (30) or the side positioning sleeve (20).

2. The anti-fall mechanism for automobile wheel hub processing according to claim 1, characterized in that: The adjusting spring (1) is inserted into the side positioning sleeve (20) or the middle positioning sleeve (30).

3. The anti-fall mechanism for automobile wheel hub processing according to claim 1, characterized in that: The central through hole of the annular protrusion (2) is aligned with the lower small-diameter hole segment of the corresponding stepped through hole (14).

4. The anti-fall mechanism for automobile wheel hub processing according to claim 1, characterized in that: The upper tray (12) has multiple connecting through holes (17) formed at its edge. The lower tray (11) corresponding to the connecting through holes (17) has a lower through hole (18). The top of the positioning screw (50) is inserted into the corresponding connecting through hole (17), and its outer side wall is in close contact with the inner side wall of the corresponding connecting through hole (17). A radially extending connecting ring (51) is formed on the upper outer side wall of the positioning screw (50). The top surface of the connecting ring (51) is pressed against the bottom surface of the upper tray (12) and welded to fix it. The lower part of the positioning screw (50) extends out of the bottom end of the corresponding lower through hole (18) and is screwed with two locking nuts (3) that press against each other. The top surface of the upper nut (3) presses against the bottom surface of the lower tray plate (12).

5. The anti-fall mechanism for automobile wheel hub processing according to claim 4, characterized in that: The top surface of the middle positioning sleeve (30) presses against the bottom surface of the central recess (13), and its outer side wall is close to the inner side wall of the central recess (13). The top surface of the middle positioning sleeve (30) presses against the top surface of the upper central recess (15), and the top outer side wall of the middle positioning sleeve (30) is close to the inner side wall of the upper central recess (15).

6. The anti-fall mechanism for automobile wheel hub processing according to claim 4, characterized in that: The top surface of the edge positioning sleeve (20) presses against the top surface of the lower section of the upper stepped through hole (16), and its outer side wall is close to the inner side wall of the lower section of the upper stepped through hole (16). The bottom surface of the edge positioning sleeve (20) presses against the bottom surface of the upper section of the stepped through hole (14), and its outer side wall is close to the inner side wall of the upper section of the stepped through hole (14).

7. The anti-fall mechanism for automobile wheel hub processing according to claim 1, characterized in that: The top of the positioning pin (40) is spherical.

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