Mounting disc protection mechanism for automobile hub spraying

Abstract

The utility model discloses a mounting plate protection mechanism for automobile hub spraying, which comprises a connecting base, a middle circular sleeve and a lower flange fixed plate, a detachable upper flange movable plate is mounted on the lower flange fixed plate, and an automatic adjusting positioning core and a spring are inserted in the middle circular sleeve in a sleeved manner. The bottom face of the middle circular sleeve is fixed to the top face of the connecting base, the bottom face of the lower flange fixing disc is fixed to the top face of the middle circular sleeve, the bottom end of the spring exerts force on the top face of the connecting base, and the top end of the spring exerts force on the bottom face of the automatic adjusting positioning core. The outer side wall of the automatic adjusting positioning core and the outer side of the spring are close to the inner side wall of the middle circular sleeve; the upper conical positioning part can automatically ascend and descend according to requirements, so that the inner side walls of the lower parts of central through holes of hub parts of different hubs can be pressed and tightly attached, sealing is realized, and the requirements of spraying, mounting and using of the different hubs are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub casting equipment technical field more specifically, relate to a kind of installation disc protection mechanism for automobile wheel hub spraying. BACKGROUND

[0002] The existing automobile wheel hub spraying positioning protection tool generally includes a center cylindrical sleeve, a tray is installed on the top of the center cylindrical sleeve, the top of the positioning core fixed on the top of the center cylindrical sleeve protrudes from the top of the middle through hole of the tray, it needs to press the bottom surface of the hub of wheel hub on the top surface of the tray, at the same time, the positioning core is inserted into the lower part of the center through hole of hub, in order to ensure its sealing effect, the outer side wall of the positioning core needs to be pressed on the conical inner side wall of the lower part of the center through hole, to realize sealing, at the same time, the top of the center through hole and the PCD hole are covered with cover, so that during spraying, spraying powder does not enter the center through hole and the PCD hole, affecting the precision of the inner side wall, and because the size of the center through hole of different sizes of wheel hub is different, a large number of positioning cores matched with the center through hole of corresponding size wheel hub need to be developed and manufactured, therefore, different positioning cores need to be manufactured, with high manufacturing cost, and the size of the tray at the bottom of wheel hub of different sizes is also different, therefore, the tray needs to be replaced frequently, and the tray is generally fixedly connected on the top of the center cylindrical sleeve by bolts, which is troublesome to disassemble. SUMMARY

[0003] The utility model aims at overcoming the insufficient of prior art, provide a kind of installation disc protection mechanism for automobile wheel hub spraying, its upper conical positioning part can be automatically lifted according to need, so that the lower part inner side wall of the center through hole of the hub of different wheel hubs can be guaranteed to be pressed closely, sealing is realized, and different wheel hub spraying installation uses are satisfied.

[0004] The utility model solves the technical problem of the scheme:

[0005] A kind of installation disc protection mechanism for automobile wheel hub spraying, including connecting base, middle circular sleeve and lower flange fixed disc, the lower flange fixed disc is installed with detachable upper flange movable disc, automatic adjusting positioning core and spring insert sleeve in middle circular sleeve, the bottom surface of middle circular sleeve is fixed on the top surface of connecting base, the bottom surface of lower flange fixed disc is fixed on the top surface of middle circular sleeve, the bottom end of spring is on the top surface of connecting base, the top end of spring is on the bottom surface of automatic adjusting positioning core, the outer side wall of automatic adjusting positioning core and the outer side of spring are close to the inner side wall of middle circular sleeve;

[0006] The top surface of the automatic adjustment positioning core is formed or fixed with an upwardly extending bottom conical protrusion. The bottom conical protrusion is inserted into the central through hole of the lower flange fixing plate. An upper conical positioning part is installed on the top surface of the bottom conical protrusion. The upper part of the upper conical positioning part extends out of the central through hole of the upper flange movable plate. The bottom end face of the hub of the wheel hub to be processed presses against the top surface of the upper flange movable plate. The upper part of the upper conical positioning part is inserted into the central through hole of the hub. The upper outer side wall of the upper conical positioning part presses against the lower inner side wall of the central through hole.

[0007] The lower inner wall of the central through hole is a conical wall, and the outer wall of the upper conical positioning part presses against the lower conical wall of the central through hole.

[0008] The bottom surface of the PCD hole in the hub is covered by the upper flange movable plate.

[0009] The top edge of the connecting base is fixed to the bottom end of the central circular sleeve by bolts, and the lower flange fixing plate is fixed to the top end of the central circular sleeve by bolts.

[0010] A circular recess is formed in the center of the bottom surface of the upper conical positioning part. The iron block is placed in the circular recess, and the outer side wall of the iron block is engaged with the inner side wall of the circular recess. The top surface of the iron block is pressed against the top surface of the circular recess. A vertically extending spline column is formed in the center of the bottom surface of the iron block. The spline column is inserted into the spline hole formed in the center of the top surface of the bottom conical protrusion and matches the spline hole. The bottom surface of the iron block and the bottom surface of the upper conical positioning part are pressed against the top surface of the bottom conical protrusion.

[0011] The top surface of the lower flange fixing plate around the central through hole is formed with an upwardly extending sleeve portion, and arc-shaped protruding locking portions are formed on the left and right side walls of the top of the extension sleeve portion.

[0012] The bottom surface of the outer side of the upper flange movable plate is formed with a downwardly extending lower extension sleeve. The lower left and right parts of the lower sidewall of the lower extension sleeve are both formed with lower arc-shaped protrusions. The extension sleeve is inserted into the lower extension sleeve, and the lower arc-shaped protrusion is located between the bottom surface of the corresponding arc-shaped protrusion locking part and the top surface of the lower flange fixed plate.

[0013] The top surface of the lower arc-shaped protrusion is in close contact with the bottom surface of the corresponding arc-shaped protrusion locking part, and the bottom surface of the lower arc-shaped protrusion is in close contact with the top surface of the lower flange fixing plate.

[0014] One side wall of the upper flange movable disc is fixed with a connecting block, a swing arm is movably connected to the connecting block through a hinge shaft, a positioning block is fixed to the upper outer side wall of the corresponding middle circular sleeve of the swing arm, a through clamping groove is formed in the middle of the outer side wall of the positioning block, an anti-skid elastic sleeve is fixed to the lower outer side wall of the swing arm, the anti-skid elastic sleeve is clamped in the clamping groove, and the front and rear side walls of the anti-skid elastic sleeve are pressed against the corresponding inner side walls of the clamping groove.

[0015] The utility model discloses a protruding effect is:

[0016] Compared with the prior art, the upper conical positioning part can automatically lift according to needs, so that the lower inner side wall of the central through hole of the hub of different wheel hubs can be pressed and attached, sealing is realized, different wheel hub spraying installation uses are satisfied, and the upper conical positioning part is convenient to replace. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the local structure schematic view of the utility model;

[0018] Figure 2 It is the local structure schematic view of the utility model hub;

[0019] Figure 3 It is Figure 1 the local enlarged view of

[0020] Figure 4 It is the local plan view of the lower flange fixed disc;

[0021] Figure 5 It is the local top view of the upper flange movable disc without connecting block, swing arm and the like. DETAILED DESCRIPTION

[0022] The utility model discloses a kind of installation disc protection mechanisms for automobile wheel hub spraying, as shown in Fig. Figures 1 to 5 , a kind of installation disc protection mechanisms for automobile wheel hub spraying, including connecting base 1, middle circular sleeve 2 and lower flange fixed disc 3, the upper flange movable disc 4 of detachable being installed on the lower flange fixed disc 3, automatic adjusting positioning core 5 and spring 6 are inserted in middle circular sleeve 2, the bottom surface of middle circular sleeve 2 is fixed on the top surface of connecting base 1, the bottom surface of lower flange fixed disc 3 is fixed on the top surface of middle circular sleeve 2, the bottom end of spring 6 is on the top surface of connecting base 1, the top end of spring 6 is on the bottom surface of automatic adjusting positioning core 5, the outer side wall of automatic adjusting positioning core 5 and the outer side of spring 6 are close to the inner side wall of middle circular sleeve 2;The bottom surface of automatic adjusting positioning core 5 is formed or fixed with protruding part, and it is inserted in the top of spring 6;

[0023] The middle part of the top surface of the automatic adjusting positioning core 5 is shaped or fixed with an upward extending bottom tapered protruding part 51, the bottom tapered protruding part 51 is inserted into the middle through hole of the lower flange fixed disc 3, the top surface of the bottom tapered protruding part 51 is installed with an upper tapered positioning part 7, the upper part of the upper tapered positioning part 7 extends out of the middle through hole of the upper flange movable disc 4, the bottom end surface of the hub part of the hub 100 to be processed is pressed against the top surface of the upper flange movable disc 4, the upper part of the upper tapered positioning part 7 is inserted into the center through hole of the hub part, and the outer side wall of the upper part of the upper tapered positioning part 7 is pressed against the lower inner side wall of the center through hole.

[0024] The lower inner side wall of the center through hole is a tapered wall surface, and the outer side wall of the upper tapered positioning part 7 is pressed against the tapered wall surface of the lower part of the center through hole.

[0025] The bottom end surface of the PCD hole of the hub part is covered by the upper flange movable disc 4.

[0026] Further, the top surface edge part of the connecting base 1 is fixed with the bottom end surface of the middle circular sleeve 2 through bolts, and the lower flange fixed disc 3 is fixed with the top end surface of the middle circular sleeve 2 through bolts.

[0027] The middle part of the bottom surface of the upper tapered positioning part 7 is shaped with a circular recess hole, the ferrous block 71 is in the circular recess hole, the outer side wall of the ferrous block 71 is clamped on the inner side wall of the circular recess hole, the top surface of the ferrous block 71 is pressed against the top surface of the circular recess hole, the middle part of the bottom surface of the ferrous block 71 is shaped with a vertically extending spline column 72, the spline column 72 is inserted into and cooperates with the spline hole shaped in the middle part of the top surface of the bottom tapered protruding part 51, and the bottom surface of the ferrous block 71 and the bottom surface of the upper tapered positioning part 7 are pressed against the top surface of the bottom tapered protruding part 51. Through the self weight of the ferrous block 71, it is ensured that the bottom surface of the upper tapered positioning part 7 is pressed against the top surface of the bottom tapered protruding part 51, and the two are connected.

[0028] The top surface of the lower flange fixed disc 3 around the middle through hole of the lower flange fixed disc 3 is shaped with an upward extending extension sleeve part 31, and the left side wall and the right side wall of the top part of the extension sleeve part 31 are each shaped with an arc-shaped protruding clamping part 32.

[0029] The bottom surface of the outer side edge part of the upper flange movable disc 4 is shaped with a downward extending lower extension sleeve part 41, the left part and the right part of the lower part of the inner side wall of the lower extension sleeve part 41 are each shaped with a lower arc-shaped protruding part 42, the extension sleeve part 31 is inserted into the lower extension sleeve part 41, and the bottom surface of the lower arc-shaped protruding part 42 is between the top surface of the lower flange fixed disc 3 and the corresponding arc-shaped protruding clamping part 32.

[0030] The top surface of the lower arc-shaped protruding part 42 is in close contact with the bottom surface of the corresponding arc-shaped protruding clamping part 32, and the bottom surface of the lower arc-shaped protruding part 42 is in close contact with the top surface of the lower flange fixed disc 3.

[0031] One of the side walls of the upper flange movable disc 4 is fixed with a connecting block, the connecting block is movably connected with a swing arm 43 through a hinge shaft, the lower middle part of the swing arm 43 is fixed with a positioning block 21 corresponding to the upper outer side wall of the middle circular sleeve 2, the middle part of the outer side wall of the positioning block 21 is formed with an upper and lower penetrating clamping groove 22, the lower outer side wall of the swing arm 43 is fixed with an anti-skid elastic sleeve 44, the anti-skid elastic sleeve 44 is clamped in the clamping groove 22, and the front and rear side walls of the anti-skid elastic sleeve 44 are pressed against the corresponding inner side walls of the clamping groove 22.

[0032] In use, the bottom of the connecting base 1 is fixed on the moving part of the circulating conveying mechanism, the bottom surface of the hub part of the hub 100 to be processed is pressed against the top surface of the upper flange movable disc 4, at the same time, the upper part of the upper conical positioning part 7 is inserted into the central through hole of the hub part, and the upper outer side wall of the upper conical positioning part 7 is pressed against the conical wall surface of the lower part of the central through hole through the elastic pressure of the spring 6 (when the conical wall surface of the lower part of the central through hole of the hub part of the hub 100 placed on the upper surface is relatively large, the upper part of the upper conical positioning part 7 can be stretched out more upward through the elastic pressure of the spring 6, so that the upper outer side wall of the upper conical positioning part 7 is pressed against the conical wall surface of the lower part of the central through hole, when the conical wall surface of the lower part of the central through hole of the hub part of the hub 100 placed on the upper surface is relatively small, the upper conical positioning part 7 is lowered and the length of the upper part of the upper conical positioning part 7 is reduced due to the weight of the hub 100, the spring 6 is compressed, generally, one of the annular rings of the upper outer side wall of the upper conical positioning part 7 is pressed against one of the annular rings of the conical wall surface of the lower part of the central through hole, so as to realize sealing, at the same time, the bottom end surface of the PCD hole of the hub part is covered by the upper flange movable disc 4, so as to realize sealing, then, the top part of the PCD hole and the top part of the central through hole are covered by the cover, so as to realize upper sealing, so that in subsequent processing, the inner side walls of the PCD hole and the central through hole cannot be contaminated by the sprayed powder, and the processing precision is ensured.

[0033] In the embodiment, when the upper conical positioning part 7 needs to be replaced, it only needs to be pulled upward, so that the spline shaft 72 is pulled out of the spline hole formed in the middle part of the top surface of the bottom conical protruding part 51, so that the upper conical positioning part 7 can be replaced conveniently.

[0034] In the embodiment, when the upper flange movable disc 4 needs to be replaced, first swing the swing arm 43 outward, so that the anti-skid elastic sleeve 44 is removed from the clamping groove 22, then rotate the upper flange movable disc 4, for example, rotate 90 degrees, so that the two lower arc-shaped protruding parts 42 are removed from the bottom surface of the corresponding arc-shaped protruding clamping part 32 and the top surface of the lower flange fixed disc 3, so that the two lower arc-shaped protruding parts 42 are staggered with the two arc-shaped protruding clamping parts 32, that is, the upper flange movable disc 4 can be disassembled, and the corresponding upper flange movable disc 4 is replaced, the installation mode and the disassembly mode are just opposite, and details are not described again. After the installation is completed, the anti-skid elastic sleeve 44 is inserted into the clamping groove 22 to realize clamping. In this way, the upper flange movable disc 4 and the lower flange fixed disc 3 cannot rotate relatively, firm fixation is ensured, and installation and disassembly are convenient.

[0035] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the utility model. Obviously, the utility model is not limited to the above embodiments, and there can be many variations. Any simple modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiments should be considered to belong to the protection scope of the utility model.

Claims

1. A kind of automobile wheel hub installation disc protection mechanism for spraying, including connecting base (1), middle circular sleeve (2) and lower flange fixed disc (3), it is characterized in that: The lower flange fixed disc (3) is provided with a detachable upper flange movable disc (4), an automatic adjusting positioning core (5) and a spring (6) are inserted into the middle circular sleeve (2), the bottom surface of the middle circular sleeve (2) is fixed on the top surface of the connecting base (1), the bottom surface of the lower flange fixed disc (3) is fixed on the top surface of the middle circular sleeve (2), the bottom end of the spring (6) is stressed on the top surface of the connecting base (1), the top end of the spring (6) is stressed on the bottom surface of the automatic adjusting positioning core (5), the outer side wall of the automatic adjusting positioning core (5) and the outer side of the spring (6) are close to the inner side wall of the middle circular sleeve (2); The bottom surface of the automatic adjusting positioning core (5) is provided with an upwardly extending bottom tapered protruding part (51) in the middle part, the bottom tapered protruding part (51) is inserted into the middle through hole of the lower flange fixed disc (3), the top surface of the bottom tapered protruding part (51) is provided with an upper tapered positioning part (7), the upper part of the upper tapered positioning part (7) extends out of the middle through hole of the upper flange movable disc (4), the bottom end surface of the hub part of the hub (100) to be machined is pressed on the top surface of the upper flange movable disc (4), the upper part of the upper tapered positioning part (7) is inserted into the central through hole of the hub part, and the outer side wall of the upper part of the upper tapered positioning part (7) is pressed on the lower inner side wall of the central through hole.

2. The installation disc protection mechanism for a wheel hub painting of an automobile according to claim 1, characterized in that: The lower inner side wall of the central through hole is a tapered wall surface, and the outer side wall of the upper tapered positioning part (7) is pressed on the tapered wall surface of the lower part of the central through hole.

3. The installation disc protection mechanism for a wheel hub painting of an automobile according to claim 1, characterized in that: The bottom end surface of the PCD hole of the hub part is covered by the upper flange movable disc (4).

4. The installation disc protection mechanism for a wheel hub painting of an automobile according to claim 1, characterized in that: The bottom surface of the upper tapered positioning part (7) is provided with a circular recess in the middle part, an iron block (71) is in the circular recess, the outer side wall of the iron block (71) is clamped on the inner side wall of the circular recess, the top surface of the iron block (71) is pressed on the top surface of the circular recess, the bottom surface of the iron block (71) is provided with a vertically extending spline column (72) in the middle part, the spline column (72) is inserted into and matched with the spline hole formed in the middle part of the top surface of the bottom tapered protruding part (51), and the bottom surface of the iron block (71) and the bottom surface of the upper tapered positioning part (7) are pressed on the top surface of the bottom tapered protruding part (51).

5. The installation disc protection mechanism for a wheel hub painting of an automobile according to claim 1, characterized in that: The top surface of the lower flange fixed disc (3) around the middle through hole is provided with an upwardly extending extension sleeve part (31), and the left and right side walls of the top part of the extension sleeve part (31) are provided with arc protruding clamping parts (32). The bottom surface of the outer side edge of the upper flange movable disc (4) is provided with a downwardly extending lower extension sleeve part (41), the left and right parts of the lower part of the inner side wall of the lower extension sleeve part (41) are provided with lower arc protruding parts (42), the extension sleeve part (31) is inserted into the lower extension sleeve part (41), and the bottom surface of the lower arc protruding part (42) is between the top surface of the lower flange fixed disc (3) and the bottom surface of the corresponding arc protruding clamping part (32).

6. The installation disc protection mechanism for a wheel hub painting of an automobile according to claim 1, characterized in that: One side wall of the upper flange movable disc (4) is fixed with a connecting block, the connecting block is movably connected with a swing arm (43) through a hinge shaft, the lower middle part of the swing arm (43) is fixed with a positioning block (21) corresponding to the upper outer side wall of the middle part circular sleeve (2), the middle part of the outer side wall of the positioning block (21) is formed with an up-down penetrating clamping groove (22), the lower outer side wall of the swing arm (43) is fixed with an anti-skid elastic sleeve (44), the anti-skid elastic sleeve (44) is clamped in the clamping groove (22), and the front and rear side walls of the anti-skid elastic sleeve (44) are pressed against the corresponding inner side walls of the clamping groove (22).

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