Automatic core fixing and locking device for inclined welding of wheels

Abstract

The utility model relates to an automatic centering and locking device for inclined welding of wheels, and relates to the technical field of welding and positioning of the wheels. The automatic core fixing and locking device for inclined welding of the wheels comprises a mounting bottom plate, a base, a pull rod mechanism, a core fixing expansion sleeve, a jacking mechanism and a pressing head. The base is arranged on the mounting bottom plate; a core fixing hole is formed in the base; the pull rod mechanism is sleeved with the core fixing hole, and the end, close to the mounting bottom plate, of the pull rod mechanism penetrates through the mounting bottom plate. The pressure head is arranged at one end of the pull rod mechanism away from the mounting bottom plate; one end of the fixed core expansion sleeve is arranged on the base in a sleeving manner, and the fixed core expansion sleeve and the pull rod mechanism are coaxially arranged; the end, away from the base, of the pull rod mechanism penetrates through the fixed core expansion sleeve. The jacking mechanism is arranged on the base and abuts against the fixed core expansion sleeve. According to the device, the hub can be fixedly and rapidly clamped, and the positioning stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel welding positioning, and in particular relates to an automatic centering and locking device for wheel tilt welding. Background Art

[0002] The rim hub needs to be positioned and fixed when processing the rim hub by tilt welding. At present, the main method of center positioning is to use the positioning shaft to pass through the center hole of the hub for positioning. The current method is that the expansion sleeve is integrated with the base, and the centering expansion sleeve is put on the base expansion sleeve. The expansion sleeve is opened and tightened by the pressure head to achieve the positioning of the product.

[0003] In the existing usage, the expansion sleeve and the base are integrated, and the expansion sleeve is deformed after long-term use, which will cause the opening size of the fixed core expansion sleeve to be unstable, resulting in inaccurate positioning of the product. At the same time, the deformation of the expansion sleeve will make it difficult to remove the fixed core expansion sleeve.

[0004] Therefore, designing an automatic centering and locking device for wheel tilt welding, which can realize rapid clamping of the wheel hub and improve the positioning stability, is an urgent problem to be solved. Utility Model Content

[0005] Based on this, the utility model aims to overcome the defects of the prior art and provide an automatic centering and locking device for wheel tilt welding. The pull rod mechanism is used to realize the automatic rise and fall of the pressure head, thereby playing the role of expanding and fixing the centering sleeve. The centering sleeve is not integrated with the base to avoid deformation during long-term use, thereby keeping the opening size of the centering sleeve stable, and achieving stable positioning of the product. In addition, the centering sleeve can be simply and quickly installed and removed through the cooperation of the pull rod and the jacking mechanism, preventing the centering sleeve from being clamped with the base and unable to be removed, greatly facilitating the installation and removal of the centering sleeve, and realizing rapid clamping of the product. At the same time, the centering sleeve can be adjusted according to different product specifications, which greatly improves the adaptability of the device to different products.

[0006] The first technical solution provided by the utility model:

[0007] An automatic centering and locking device for wheel tilt welding, comprising a mounting base plate, a base, a pull rod mechanism, a centering expansion sleeve, a lifting mechanism and a pressure head; the base is arranged on the mounting base plate; a centering hole is opened on the base; the pull rod mechanism is sleeved in the centering hole, and the end of the pull rod mechanism close to the mounting base plate passes through the mounting base plate; the pressure head is arranged on the end of the pull rod mechanism away from the mounting base plate; one end of the centering expansion sleeve is sleeved on the base, and the centering expansion sleeve and the pull rod mechanism are arranged coaxially; the end of the pull rod mechanism away from the base passes through the centering expansion sleeve; the lifting mechanism is arranged on the base, and the lifting mechanism resists the centering expansion sleeve.

[0008] Furthermore, one end of the base away from the mounting base plate is raised on the core fixing hole to form a guide hole wall.

[0009] Furthermore, the lifting mechanism is arranged at intervals around the outer periphery of the guide hole wall; the lifting mechanism includes an adjusting screw, a return spring and a push rod; lifting holes are arranged on the base at intervals around the guide hole wall, the return spring is arranged in the lifting hole, and the end of the return spring away from the mounting base plate abuts against the push rod, and the end close to the mounting base plate abuts against the adjusting screw; the end of the adjusting screw away from the return spring passes through the base; the end of the push rod away from the return spring abuts against the fixed core expansion sleeve.

[0010] Furthermore, one end of the fixed core expansion sleeve close to the base extends toward the base to form a fixed core barrel wall, and the outer wall surface of the fixed core barrel wall transitions into a circular arc with the outer wall surface of the fixed core expansion sleeve; the inner wall diameter of the fixed core barrel wall gradually increases in the axial direction from away from the base to close to the base; the inner wall of the fixed core barrel wall cooperates with the outer wall surface of the guide hole wall; and the end of the fixed core barrel wall close to the base abuts against the push rod.

[0011] Furthermore, the pull rod mechanism includes a pull rod shaft, a screw rod and a limit nut; the pull rod shaft passes through the mounting base and the base in sequence and is located in the axial hole of the fixed core expansion sleeve; one end of the screw rod is threadedly connected to the end of the pull rod shaft away from the base; the pressure head and the limit nut are both sleeved on the screw rod, and the limit nut is located between the pressure head and the pull rod shaft; the limit nut supports the pressure head.

[0012] Furthermore, the pressure head includes a mounting barrel section and an extrusion barrel section which are interconnected and coaxially arranged; the extrusion barrel section is located between the mounting barrel section and the pull rod shaft; the mounting center hole of the mounting barrel section is coaxially arranged with the extrusion center hole of the extrusion barrel section, and the diameter of the mounting center hole is smaller than the diameter of the extrusion center hole; the limit nut is located in the extrusion center hole and abuts against the mounting barrel section; the outer circumferential diameter of the mounting barrel section is not smaller than the diameter of the expansion sleeve hole of the fixed core expansion sleeve; the outer circumferential diameter of the extrusion barrel section is not smaller than the diameter of the expansion sleeve hole of the fixed core expansion sleeve, and the outer circumferential diameter of the extrusion barrel section gradually decreases in the axial direction from one end close to the mounting barrel section to one end away from the mounting barrel section.

[0013] The beneficial effects of the utility model are:

[0014] The pull rod mechanism is used to realize the automatic rise and fall of the pressure head, thereby playing the role of expanding and fixing the fixed core expansion sleeve. The fixed core expansion sleeve is not integrated with the base to avoid deformation during long-term use, thereby keeping the opening size of the fixed core expansion sleeve stable and achieving stable positioning of the product. In addition, the fixed core expansion sleeve can be easily and quickly installed and removed through the cooperation of the pull rod and the jacking mechanism, preventing the fixed core expansion sleeve from being clamped with the base and unable to be removed, greatly facilitating the installation and removal of the fixed core expansion sleeve and achieving rapid clamping of the product. At the same time, the fixed core expansion sleeve can be adjusted according to different product specifications, greatly improving the adaptability of the device to different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the automatic centering and locking device for wheel tilt welding according to an embodiment of the utility model.

[0016] Description of reference numerals:

[0017] 01. Installing base plate; 02. Base; 21. Guide hole wall; 03. Pull rod mechanism; 31. Pull rod shaft; 32. Screw rod; 33. Limit nut; 04. Centering expansion sleeve; 41. Centering cylinder wall; 05. Lifting mechanism; 51. Adjusting screw; 52. Return spring; 53. Push rod; 06. Press head; 61. Installing cylinder section; 62. Extruding cylinder section. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the embodiments of the present application, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In the description of the embodiments of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0024] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0025] Please refer to Figure 1 The embodiment of the present application provides an automatic centering and locking device for wheel tilt welding, including a mounting base plate 01, a base 02, a pull rod mechanism 03, a centering expansion sleeve 04, a lifting mechanism 05 and a pressure head 06; the base 02 is arranged on the mounting base plate 01; a centering hole is opened on the base 02; the pull rod mechanism 03 is sleeved in the centering hole, and the end of the pull rod mechanism 03 close to the mounting base plate 01 passes through the mounting base plate 01; the pressure head 06 is arranged on the end of the pull rod mechanism 03 away from the mounting base plate 01; one end of the centering expansion sleeve 04 is sleeved on the base 02, and the centering expansion sleeve 04 is coaxially arranged with the pull rod mechanism 03; the end of the pull rod mechanism 03 away from the base 02 passes through the centering expansion sleeve 04; the lifting mechanism 05 is arranged on the base 02, and the lifting mechanism 05 resists the centering expansion sleeve 04.

[0026] The automatic centering and locking device for wheel tilt welding realizes the automatic rise and fall of the pressure head 06 by using the pull rod mechanism 03, thereby playing the role of expanding and fixing the centering expansion sleeve 04. The centering expansion sleeve 04 is not integrated with the base 02 to avoid deformation during long-term use, thereby keeping the opening size of the centering expansion sleeve 04 stable, and achieving stable positioning of the product. In addition, the centering expansion sleeve 04 can be easily and quickly installed and removed through the cooperation of the pull rod and the jacking mechanism 05, preventing the centering expansion sleeve 04 from being clamped with the base 02 and unable to be removed, greatly facilitating the installation and removal of the centering expansion sleeve 04, and achieving rapid clamping of the product. At the same time, the centering expansion sleeve 04 can be adjusted according to different product specifications, greatly improving the adaptability of the device to different products.

[0027] Among them, one end of the base 02 away from the mounting base plate 01 is raised on the core fixing hole to form a guide hole wall 21. The guide hole wall 21 is used to guide the movement of the core fixing sleeve 04 in the axial direction to resist the lifting mechanism 05, and on the other hand, it also increases the stability of the hub fixing during the positioning and fixing process.

[0028] The lifting mechanism 05 is arranged at intervals around the outer periphery of the guide hole wall 21; the lifting mechanism 05 includes an adjusting screw 51, a return spring 52 and a push rod 53; lifting holes are arranged on the base 02 around the guide hole wall 21, and the return spring 52 is arranged in the lifting hole, and the end of the return spring 52 away from the bottom plate 01 abuts against the push rod 53, and the end close to the bottom plate 01 abuts against the adjusting screw 51; the end of the adjusting screw 51 away from the return spring 52 passes through the base 02; the end of the push rod 53 away from the return spring 52 abuts against the fixed core expansion sleeve 04.

[0029] The restoring force of the restoring spring 52 can be adjusted by adjusting the adjusting screw 51, thereby achieving the support of the fixed core expansion sleeves 04 of different specifications.

[0030] One end of the fixed core expansion sleeve 04 close to the base 02 extends toward the base 02 to form a fixed core tube wall 41, and the outer wall surface of the fixed core tube wall 41 transitions into a circular arc with the outer wall surface of the fixed core expansion sleeve 04; the inner wall diameter of the fixed core tube wall 41 gradually increases in the axial direction from away from the base 02 to close to the base 02; the inner wall of the fixed core tube wall 41 cooperates with the outer wall surface of the guide hole wall 21; the end of the fixed core tube wall 41 close to the base 02 abuts against the top rod 53.

[0031] The core fixing tube wall 41 is mainly formed into a thin-walled structure, which facilitates the deformation of the core fixing expansion sleeve 04 and the cooperation with the guide hole wall 21 on the one hand, and also forms a reserved space for the hub structure to be placed in the concave end of the core fixing expansion sleeve 04 close to the base 02 on the other hand.

[0032] The pull rod mechanism 03 includes a pull rod shaft 31, a screw rod 32 and a limit nut 33; the pull rod shaft 31 passes through the mounting base plate 01 and the base 02 in sequence and is located in the axial hole of the centering sleeve 04; one end of the screw rod 32 is threadedly connected to the end of the pull rod shaft 31 away from the base 02; the pressure head 06 and the limit nut 33 are both sleeved on the screw rod 32, and the limit nut 33 is located between the pressure head 06 and the pull rod shaft 31; the limit nut 33 resists the pressure head 06.

[0033] The length of the screw rod 32 and the position of the limit nut 33 can adjust the position of the pressure head 06, and then adjust the rise and fall of the fixed core expansion sleeve 04 in the axial direction to adapt to the positioning of products of different specifications.

[0034] The pressure head 06 includes an installation barrel section 61 and an extrusion barrel section 62 which are interconnected and coaxially arranged; the extrusion barrel section 62 is located between the installation barrel section 61 and the pull rod shaft 31; the installation center hole of the installation barrel section 61 is coaxially arranged with the extrusion center hole of the extrusion barrel section 62, and the diameter of the installation center hole is smaller than the diameter of the extrusion center hole; the limit nut 33 is located in the extrusion center hole and abuts against the installation barrel section 61; the outer circumferential diameter of the installation barrel section 61 is not smaller than the diameter of the expansion sleeve hole of the fixed core expansion sleeve 04; the outer circumferential diameter of the extrusion barrel section 62 is not smaller than the diameter of the expansion sleeve hole of the fixed core expansion sleeve 04, and the outer circumferential diameter of the extrusion barrel section 62 gradually decreases in the axial direction from one end close to the installation barrel section 61 to one end away from the installation barrel section 61.

[0035] In summary, the embodiments provided by the present invention have the following main effective effects:

[0036] The automatic centering and locking device for wheel tilt welding uses a pull rod mechanism to realize the automatic rise and fall of the Y (pressure) head, thereby playing a role in the expansion and fixed positioning of the centering expansion sleeve. The centering expansion sleeve is not integrated with the base to avoid deformation during long-term use, thereby keeping the opening size of the centering expansion sleeve stable and achieving stable positioning of the product. In addition, the centering expansion sleeve can be easily and quickly installed and removed through the cooperation of the pull rod and the jacking mechanism, preventing the centering expansion sleeve from being clamped with the base and unable to be removed, greatly facilitating the installation and removal of the centering expansion sleeve and achieving rapid clamping of the product. At the same time, the centering expansion sleeve can be adjusted according to different product specifications, greatly improving the adaptability of the device to different products.

[0037] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automatic centering and locking device for wheel tilt welding, characterized in that: It includes a mounting base plate, a pedestal, a pull rod mechanism, a core-fixing expansion sleeve, a lifting mechanism and a pressure head; the base is arranged on the mounting base plate; a core-fixing hole is opened on the base; the pull rod mechanism is sleeved in the core-fixing hole, and the end of the pull rod mechanism close to the mounting base plate passes through the mounting base plate; the pressure head is arranged on the end of the pull rod mechanism away from the mounting base plate; one end of the core-fixing expansion sleeve is sleeved on the base, and the core-fixing expansion sleeve is coaxially arranged with the pull rod mechanism; the end of the pull rod mechanism away from the base passes through the core-fixing expansion sleeve; the lifting mechanism is arranged on the base, and the lifting mechanism abuts against the core-fixing expansion sleeve.

2. The automatic centering and locking device for wheel tilt welding according to claim 1, characterized in that: One end of the base away from the mounting base plate protrudes on the core fixing hole to form a guide hole wall.

3. The automatic centering and locking device for wheel tilt welding according to claim 2, characterized in that: The lifting mechanism is arranged at intervals around the outer periphery of the guide hole wall; the lifting mechanism includes an adjusting screw, a return spring and a push rod; the base is provided with lifting holes spaced around the guide hole wall, the return spring is arranged in the lifting hole, and the end of the return spring away from the mounting base plate abuts against the push rod, and the end close to the mounting base plate abuts against the adjusting screw; the end of the adjusting screw away from the return spring passes through the base; the end of the push rod away from the return spring abuts against the fixed core expansion sleeve.

4. The automatic centering and locking device for wheel tilt welding according to claim 3, characterized in that: One end of the core-fixing expansion sleeve close to the base extends toward the base to form a core-fixing barrel wall, and the outer wall surface of the core-fixing barrel wall transitions into a circular arc with the outer wall surface of the core-fixing expansion sleeve; the inner wall diameter of the core-fixing barrel wall gradually increases in the axial direction from away from the base to close to the base; the inner wall of the core-fixing barrel wall cooperates with the outer wall surface of the guide hole wall; one end of the core-fixing barrel wall close to the base abuts against the push rod.

5. The automatic centering and locking device for wheel tilt welding according to claim 4, characterized in that: The pull rod mechanism includes a pull rod shaft, a screw rod and a limit nut; the pull rod shaft passes through the mounting base plate and the base in sequence and is located in the axial hole of the core expansion sleeve; one end of the screw rod is threadedly connected to an end of the pull rod shaft away from the base; the pressure head and the limit nut are both sleeved on the screw rod, and the limit nut is located between the pressure head and the pull rod shaft; the limit nut resists the pressure head.

6. The automatic centering and locking device for wheel tilt welding according to claim 5, characterized in that: The pressure head includes a mounting barrel section and an extrusion barrel section which are interconnected and coaxially arranged; the extrusion barrel section is located between the mounting barrel section and the pull rod shaft; the mounting center hole of the mounting barrel section is coaxially arranged with the extrusion center hole of the extrusion barrel section, and the diameter of the mounting center hole is smaller than the diameter of the extrusion center hole; the limit nut is located in the extrusion center hole and abuts against the mounting barrel section; the outer circumferential diameter of the mounting barrel section is not smaller than the diameter of the expansion sleeve hole of the core expansion sleeve; the outer circumferential diameter of the extrusion barrel section is not smaller than the diameter of the expansion sleeve hole of the core expansion sleeve, and the outer circumferential diameter of the extrusion barrel section gradually decreases in the axial direction from one end close to the mounting barrel section to one end away from the mounting barrel section.

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