Hub vertical lathe clamp and clamping jaw structure thereof

Abstract

The utility model provides a hub vertical lathe clamp and a clamping jaw structure thereof. The clamping jaw structure comprises a supporting base, a clamping block and a limiting piece. The lower surface of the limiting part of the clamping block is supported on the upper end surface of the supporting seat; a positioning bayonet penetrating up and down is formed in the limiting part of the clamping block, and the positioning bayonet is arranged on the positioning convex column in a sleeving manner, so that the clamping block is detachably clamped on the supporting seat, and the clamping blocks with different sizes can be arranged at the upper end of the supporting seat to adapt to the fixation of hubs with different sizes on the vertical lathe chuck. The limiting piece is movably arranged on the supporting base. At the locking position, the limiting piece abuts against the upper surface of the limiting part so that the clamping block can be downwards pressed on the supporting base; and at the unlocking position, the clamping block can move upwards relative to the supporting seat so as to be separated from the supporting seat. When the clamping blocks are disassembled and assembled, only the limiting pieces need to be controlled to move, so that the clamping blocks with different sizes can be conveniently replaced on the clamping jaw structure, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, and in particular to a wheel hub vertical lathe clamp and its claw structure. Background Technology

[0002] A wheel hub vertical lathe fixture is a tooling used to hold wheel hubs on a vertical lathe for machining. The wheel hub is fixed in the wheel hub vertical lathe fixture, and the vertical lathe machines the wheel hub on the wheel hub vertical lathe fixture to obtain qualified wheel hub products.

[0003] The fixture is equipped with chucks to limit the movement of the wheel hub. Wheel hubs come in different sizes, necessitating frequent chuck replacements. Existing chuck replacement procedures are cumbersome and time-consuming, thus reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a chuck structure for a wheel hub vertical lathe, so as to facilitate the replacement of chuck blocks of different sizes on the chuck structure to adapt to the clamping of wheel hubs of different sizes and improve processing efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of this utility model, a chuck structure for a wheel hub vertical lathe is provided. The wheel hub vertical lathe clamp includes a vertical lathe chuck; the chuck structure includes a support base, a chuck block, and a limiting member; the support base is used to fix itself to the upper surface of the vertical lathe chuck; a protruding positioning protrusion is formed on the upper surface of the support base; the chuck block includes a top abutment and a limiting portion; the lower surface of the limiting portion supports the upper end face of the support base; a vertically penetrating positioning slot is provided on the limiting portion, and the positioning slot is fitted onto the positioning protrusion, so that... The locking block is detachably engaged with the support base; the abutment is disposed on the limiting portion on the side facing the center of the vertical chuck, for abutting the hub on the vertical chuck; the limiting member is movably disposed on the support base, so as to be able to switch between a locked position and an unlocked position; in the locked position, the limiting member abuts against the upper surface of the limiting portion, for pressing the locking block downward onto the support base; in the unlocked position, the locking block can move upward relative to the support base, so as to be able to separate from the support base.

[0007] In some embodiments of this application, limiting grooves are respectively formed on the two opposite sides of the positioning protrusion, the limiting grooves extend upward and to the upper end of the positioning protrusion; the positioning slot is open on the side opposite to the limiting part; protruding limiting protrusions are respectively formed on the two opposite sides of the positioning slot; the limiting protrusions engage with the limiting grooves and can slide along the extending direction of the limiting grooves.

[0008] In some embodiments of this application, the outer peripheral side of the limiting protrusion abuts against the peripheral sidewall of the limiting groove.

[0009] In some embodiments of this application, the positioning protrusion has a top surface on the side facing the center of the vertical chuck; the top surface is inclined towards the center of the vertical chuck in an upward direction, and the top surface abuts against the side wall of the positioning slot.

[0010] In some embodiments of this application, the positioning bayonet has a mating surface formed on the side wall near the abutment, and the mating surface is inclined toward the center of the vertical chuck in an upward direction, and the mating surface is in contact with the abutment surface.

[0011] In some embodiments of this application, the limiting member includes a rotating shaft and a fastening portion disposed on the top of the rotating shaft; the rotating shaft extends in the vertical direction and is rotatably connected to the positioning protrusion about its own axis, so that the limiting member can rotate between a locked position and an unlocked position; the fastening portion is connected to the upper end of the rotating shaft so as to rotate with the rotating shaft, and the fastening portion is located at the upper end of the positioning protrusion; in the locked position, the lower surface of the fastening portion abuts against the upper end of the limiting portion; in the unlocked position, the fastening portion and the limiting portion are separated.

[0012] In some embodiments of this application, the upper surface of the limiting part is provided with a stop groove, the stop groove is disposed on the side of the positioning slot facing the top and communicates with the positioning slot; in the locked position, the fastening part is engaged in the stop groove; from the locked position to the unlocked position, the fastening part can rotate out of the stop groove.

[0013] In some embodiments of this application, the outer periphery of the rotating shaft is provided with an external thread so that the rotating shaft is threadedly connected to the positioning protrusion; a stop member is fixed on the upper end of the positioning protrusion, and the stop member is disposed near the fastening part to stop and limit the rotation range of the fastening part.

[0014] According to one aspect of the present invention, a wheel hub vertical car clamp is provided, including a vertical car chuck and the aforementioned claw structure; the claw structure is provided in multiple manner, and the multiple claw structures are distributed on the vertical car chuck around the axis of the vertical car chuck.

[0015] In some embodiments of this application, the support base is movable relative to the vertical chuck along the radial direction of the vertical chuck, so as to fix the claw structure at different positions on the vertical chuck.

[0016] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0017] In this invention, a protruding positioning post is formed on the upper surface of the support base. The top of the locking block is located on the side of the limiting part facing the center of the vertical chuck, for abutting against the wheel hub on the vertical chuck. The lower surface of the limiting part of the locking block is supported on the upper end surface of the support base. A vertically penetrating positioning slot is provided on the limiting part of the locking block, which is fitted onto the positioning post, so that the locking block can be detachably engaged with the support base. This allows locking blocks of different sizes to be placed on the upper end of the support base to accommodate the fixing of wheel hubs of different sizes on the vertical chuck.

[0018] The limiting member is movably mounted on the support base. In the locked position, the limiting member abuts against the upper surface of the limiting part to press the locking block downwards onto the support base; in the unlocked position, the locking block can move upwards relative to the support base to separate from it. When disassembling and installing the locking block, only the movement of the limiting member needs to be controlled, thus facilitating the replacement of locking blocks of different sizes on the chuck structure and improving processing efficiency.

[0019] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 This is a structural schematic diagram of the wheel hub vertical clamp of this utility model.

[0023] Figure 2 This is a structural schematic diagram of the vertical chuck of this utility model.

[0024] Figure 3 This is a schematic diagram of the claw structure of this utility model.

[0025] Figure 4 This is a structural schematic diagram of the support base of this utility model from one perspective.

[0026] Figure 5 This is a structural schematic diagram of the support base of this utility model from another perspective.

[0027] Figure 6 This is a schematic diagram of the structure of the card block of this utility model.

[0028] Figure 7 This is a structural schematic diagram of the limiting component of this utility model.

[0029] Figure 8 This is a schematic diagram of the limiting component of this utility model in the locking position.

[0030] Figure 9 This is a schematic diagram of the limiting component of this utility model in the unlocking position.

[0031] The reference numerals in the attached diagram are explained as follows: 100, vertical chuck; 110, limit groove; 111, first section; 112, second section; 120, first tooth group.

[0032] 200. Claw structure; 210. Support base; 211. Fastening hole; 212. Support part; 213. Extension part; 214. Positioning protrusion; 215. Top surface; 216. Limiting groove; 217. Second tooth set; 218. Rotation hole;

[0033] 220. Locking block; 221. Top abutment; 222. Limiting part; 223. Positioning slot; 224. Mating surface; 225. Limiting protrusion; 226. Stop groove; 227. Clamping surface;

[0034] 230. Limiting component; 231. Rotating shaft; 232. Fastening part; 240. Stop component. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0036] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0037] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0038] For ease of description and understanding, the up and down directions are defined with reference to the state of the fixture during use.

[0039] Figure 1 This is a structural schematic diagram of the wheel hub vertical clamp of this utility model.

[0040] See Figure 1 This application provides a wheel hub vertical lathe fixture for limiting the position of a wheel hub. After the wheel hub is limited on the wheel hub vertical lathe fixture, a vertical lathe processes the wheel hub. The wheel hub vertical lathe fixture includes a vertical lathe chuck 100 and jaw structures 200. The vertical lathe chuck 100 is horizontally positioned, and the jaw structures 200 are disposed on the upper surface of the vertical lathe chuck 100 for clamping the wheel hub. Multiple jaw structures 200 are provided, and the multiple jaw structures 200 are distributed around the axis of the vertical lathe chuck 100. The multiple jaw structures 200 work together to limit the position of the wheel hub, thereby fixing the wheel hub above the vertical lathe chuck 100.

[0041] In some embodiments, a plurality of jaw structures 200 are evenly distributed around the central axis of the vertical chuck 100. The jaw structures 200 are configured as two, three, or more.

[0042] In some embodiments, the wheel hub vertical lathe clamp includes a vertical lathe chuck 100, a jaw structure 200, and support members (not shown). Multiple support members are provided, distributed around the center of the vertical lathe chuck 100. The support members abut against the wheel hub upwards, and the jaw structure 200 abuts against the outer periphery of the wheel hub radially. Through the combined action of the support members and the jaw structure 200, the wheel hub is positioned above the vertical lathe chuck 100.

[0043] Figure 2 This is a structural schematic diagram of the vertical chuck of this utility model.

[0044] See Figure 1 and Figure 2 The jaw structure 200 is movable relative to the vertical chuck 100 in the radial direction to fix the jaw structure 200 at different positions on the vertical chuck 100. By adjusting the position of the jaw structure 200 on the vertical chuck 100, wheel hubs of different diameters can be engaged between multiple jaw structures 200.

[0045] In some embodiments, a limiting groove 110 is formed on the vertical chuck 100. The limiting groove 110 extends radially along the vertical chuck 100 and penetrates the outer periphery of the vertical chuck 100. The limiting groove 110 includes a first segment 111 extending vertically and a second segment 112 vertically connected to the lower end of the first segment 111. Both the first segment 111 and the second segment 112 extend radially along the vertical chuck 100 and penetrate the outer periphery of the vertical chuck 100 radially.

[0046] In one embodiment, the limiting groove 110 has a "T" shaped cross-section. In another embodiment, the limiting groove 110 has an "L" shaped cross-section.

[0047] In some embodiments, the limiting groove 110 includes only a first segment 111, which extends through the vertical chuck 100 in the vertical direction.

[0048] A fastener is provided between the vertical chuck 100 and the jaw structure 200. The fastener passes through and is fixed between the vertical chuck 100 and the jaw structure 200, thus securing the jaw structure 200 to the vertical chuck 100. The vertical chuck 100 can drive the jaw structure 200 to move radially along the vertical chuck 100. The jaw structure 200 moves closer to and further away from the center of the vertical chuck 100, enabling it to clamp wheel hubs of different sizes between multiple jaw structures 200, thereby limiting the wheel hubs of different sizes above the vertical chuck 100.

[0049] The fasteners include a fastening bolt and a fastening nut. The fastening bolt passes through the first section 111 and the claw structure 200 along its vertical direction. The upper end of the fastening nut abuts against the vertical chuck 100, thereby fixing the claw structure 200 to the vertical chuck 100.

[0050] The upper surface of the vertical chuck 100 is provided with a first tooth group 120, which includes a plurality of first teeth. The plurality of first teeth are spaced apart radially along the vertical chuck 100. A limiting groove 110 is formed on the first tooth group 120. The spacing direction of the first teeth is parallel to the extension direction of the limiting groove 110. The first teeth are used to limit the chuck claw structure 200.

[0051] In some embodiments, the first teeth are spaced apart in a direction parallel to the limiting groove 110, thereby enabling the jaw structure 200 to be positioned at different locations on the vertical chuck 100 along the extending direction of the limiting groove 110. It should be noted that the jaw structure 200 is fixed to the first tooth set 120. The limiting groove 110 is formed on the first tooth set 120, and fasteners are fixed between the first tooth set 120 and the jaw structure 200. The first tooth set 120 is radially movably disposed on the vertical chuck 100, enabling the vertical chuck jaw structure 200 to move radially along the vertical chuck 100 for clamping and releasing the wheel hub.

[0052] The fastening bolt passes vertically through the first toothed assembly 120, and the upper end of the fastening nut abuts against the bottom surface of the first toothed assembly 120 to fix the chuck structure 200 onto the vertical chuck 100.

[0053] In some embodiments, the first tooth set 120 is radially movably disposed on the vertical car chuck 100. The wheel hub vertical car clamp is also provided with a clamping power unit (not shown), which is drively connected to the first tooth set 120 to drive the first tooth set 120 to move. The first tooth set 120 may have a cylinder or hydraulic cylinder structure. The clamping power unit drives multiple first tooth sets 120 to move synchronously, thereby driving multiple corresponding jaw structures 200 to move synchronously.

[0054] Figure 3 This is a schematic diagram of the claw structure 200 of this utility model. Figure 4 This is a structural schematic diagram of the support base of this utility model from one perspective. Figure 5 This is a structural schematic diagram of the support base of this utility model from another perspective.

[0055] See Figures 1 to 5 This application provides a chuck structure 200 for a wheel hub chuck, comprising a support base 210 and a chuck block 220. The support base 210 is fixed to the upper surface of the chuck 100, and the chuck block 220 is fixed to the upper end of the support base 210. One end of the chuck block 220 facing the center of the chuck 100 is used to abut against the wheel hub. Multiple chuck structures 200 are provided, arranged around the central axis of the chuck 100, with the chuck blocks 220 of each structure abutting against the wheel hub.

[0056] In one embodiment, the support base 210 has a through-hole 211. A fastener passes through and is fixed between the fastening hole 211 and the vertical chuck 100, thus fixing the support base 210 to the vertical chuck 100. For example, a fastening bolt passes through the first section 111 of the limiting groove 110 and the fastening hole 211, and a fastening nut is fixed in the second section 112 of the limiting groove 110. The support base 210 is fixed to the vertical chuck 100 by the fastening between the fastening bolt and the fastening nut.

[0057] The support base 210 can move relative to the vertical chuck 100 along the extension direction of the limiting groove 110, thereby fixing the support base 210 at different positions on the vertical chuck 100.

[0058] In some implementations, the upper surface of the vertical chuck 100 is provided with a first set of teeth 120, and the lower surface of the support 210 is provided with a second set of teeth 217. The second set of teeth 217 and the first set of teeth 120 can mesh with each other to restrict the radial movement of the second set of teeth 217 relative to the first set of teeth 120 along the vertical chuck 100, and to restrict the radial movement of the support 210 relative to the first set of teeth 120 along the vertical chuck 100. This ensures the reliability of clamping when the wheel hub is clamped on the jaw structure 200.

[0059] The first tooth set 120 can move radially along the vertical lathe chuck 100 to drive the support seat 210 to move radially along the vertical lathe chuck 100, thereby clamping or releasing the wheel hub, and can clamp wheel hubs of different sizes above the vertical lathe chuck 100 for machining.

[0060] In other embodiments, the upper surface of the vertical chuck 100 is provided with a first tooth set 120, and the lower surface of the support 210 is provided with a second tooth set 217. The second tooth set 217 includes a plurality of second teeth, the spacing direction of which is parallel to the radial direction of the vertical chuck 100. The second tooth set 217 and the first tooth set 120 can cooperate with each other, thereby limiting the support 210 to different positions on the vertical chuck 100 along the radial direction. After the support 210 moves along the radial direction of the vertical chuck 100, the second teeth can engage with the first teeth to limit the support 210 and restrict its radial movement along the vertical chuck 100.

[0061] It should be noted that, in one embodiment, the first tooth set 120 may be a rack disposed on the vertical chuck 100 and extending radially along the vertical chuck 100. The second tooth set 217 may be a rack fixed on the support base 210 and extending radially along the vertical chuck 100.

[0062] In this embodiment, the support base 210 includes a support portion 212 and an extension portion 213 extending from one side of the support portion 212 toward the center of the vertical chuck 100. A fastening hole 211 extends through the extension portion 213 in a vertical direction to facilitate the connection of fasteners on the support base 210.

[0063] In other embodiments, the support 210 includes a support portion 212 and an extension portion 213 extending from one side of the support portion 212 toward the center of the vertical chuck 100.

[0064] In one embodiment, a fastening hole 211 is formed in the extension 213. A fastener is fixed between the extension 213 and the vertical chuck 100.

[0065] In another embodiment, multiple fastening holes 211 are provided, with some fastening holes 211 formed on the extension 213 and others formed on the side of the support 212 facing away from the extension 213. The side of the support 212 facing away from the extension 213 is inclined upward towards the extension 213 to facilitate the fastening bolts passing through the support 212 into the fastening holes 211 on the support 212, thus facilitating the connection of the fastening bolts on the support 212.

[0066] In some embodiments, a protruding positioning protrusion 214 is formed on the upper surface of the support base 210. The positioning protrusion 214 is used to limit the locking block 220 to restrict the horizontal movement of the locking block 220. The lower surface of the locking block 220 is supported on the upper end surface of the support base 210, and the positioning protrusion 214 extends upward through the locking block 220 to limit the horizontal and downward movement of the locking block 220.

[0067] In other embodiments, limiting grooves 216 are respectively formed on two opposite sides of the positioning protrusion 214. The limiting grooves 216 extend upward to the upper end of the positioning protrusion 214. The limiting grooves 216 are formed on two sides of the positioning protrusion 214 in a second direction. The radial direction along the vertical chuck 100 on the support base 210 is the first direction, and the second direction is horizontal and perpendicular to the first direction.

[0068] Figure 6 This is a schematic diagram of the structure of the card block of this utility model.

[0069] See Figures 2 to 6 The locking block 220 is supported on the upper surface of the support base 210. The locking block 220 is engaged with the positioning protrusion 214, thereby restricting the horizontal and downward movement of the locking block 220. The side of the locking block 220 facing the vertical chuck 100 is used to abut against the wheel hub.

[0070] In some embodiments, the locking block 220 includes an abutment top 221 and a limiting portion 222. The lower surface of the limiting portion 222 is supported on the upper end surface of the support base 210. The limiting portion 222 has a vertically penetrating positioning slot 223, which is sleeved on the positioning protrusion 214, so that the locking block 220 can be detachably engaged with the support base 210. The detachable engagement of the locking block 220 with the upper end of the support base 210 enables locking blocks 220 of different sizes or dimensions to be limited at the upper end of the support base 210, thereby enabling wheel hubs of different sizes to be fixed above the vertical chuck 100.

[0071] In another embodiment, the locking blocks 220 are configured in multiple groups, each group of locking blocks 220 being of a different size. The positioning slots 223 on the multiple groups of locking blocks 220 are of the same size, thereby enabling locking blocks 220 of different sizes to be positioned at the upper end of the support base 210.

[0072] In some embodiments, the abutment 221 is provided on the side of the limiting portion 222 facing the center of the vertical chuck 100 to abut against the hub on the vertical chuck 100. Limiting grooves 216 are respectively formed on the two opposite sides of the positioning protrusion 214, and the positioning slot 223 is open on the side opposite to the abutment 221; protruding limiting protrusions 225 are respectively formed on the two opposite sides of the positioning slot 223; the limiting protrusions 225 engage with the limiting grooves 216 and can slide along the extending direction of the limiting grooves 216. The cooperation of the limiting protrusions 225 and the limiting grooves 216 is used to limit the movement of the chuck block 220 relative to the support base 210 in the radial direction of the vertical chuck 100.

[0073] In some embodiments, the outer periphery of the limiting protrusion 225 abuts against the peripheral wall of the limiting groove 216.

[0074] In one embodiment, the outer periphery of the limiting protrusion 225 and the outer periphery of the limiting groove 216 are respectively set to arc shapes. In another embodiment, the peripheral walls of the limiting groove 216 and the limiting protrusion 225 are respectively set to polygonal shapes.

[0075] In other embodiments, the positioning slot 223 has closed structures on each side wall in the horizontal direction, and the positioning protrusion 214 does not have a limiting groove 216 on its peripheral side wall. The positioning protrusion 214 passes through the positioning slot 223 to restrict the movement of the block 220 in the horizontal direction.

[0076] In one embodiment, the positioning protrusion 214 has an abutment surface 215 on the side facing the center of the vertical chuck 100. The abutment surface 215 is inclined in the upward direction towards the center of the vertical chuck 100 and abuts against the side wall of the positioning slot 223. The abutment surface 215 is disposed on the side wall of the support base 210 in the first direction. The inclined arrangement of the abutment surface 215 restricts the upward movement of the locking block 220 when it abuts against the wheel hub, thereby ensuring the reliability of the wheel hub being positioned above the vertical chuck 100.

[0077] In some embodiments, the positioning protrusion 214 has an abutment surface 215 formed on the side facing the center of the vertical chuck 100, and the abutment surface 215 is inclined upward toward the center of the vertical chuck 100. The positioning latch 223 has a mating surface 224 formed on the sidewall near the abutment 221, and the mating surface 224 is inclined upward toward the center of the vertical chuck 100, fitting against the abutment surface 215. The surface contact between the abutment surface 215 and the mating surface 224 ensures that the surface contact structure is not easily deformed, guaranteeing the reliability of the locking block 220 in the upper limit position of the positioning protrusion 214, ensuring the reliability and stability of the locking block 220's position, and thus ensuring the stability and reliability of the locking block 220 abutting against the wheel hub.

[0078] In some embodiments, the positioning protrusion 214 has a top surface 215 formed on the side facing the center of the vertical chuck 100; the top surface 215 is inclined toward the center of the vertical chuck 100 in an upward direction. The limiting groove 216 is inclined toward the center of the vertical chuck 100 in an upward direction, and the extending direction of the limiting groove 216 is parallel to the top surface 215.

[0079] In one specific embodiment, the positioning protrusion 214 is inclined toward the center of the vertical chuck 100 in an upward direction, and the abutment surface 215 and the limiting groove 216 are respectively inclined toward the center of the vertical chuck 100.

[0080] In some embodiments, the abutment top 221 is provided on the side of the limiting portion 222 facing the center of the vertical chuck 100 to abut against the wheel hub on the vertical chuck 100. One side of the back plate limiting portion 222 of the abutment top 221 is formed into an arc-shaped clamping surface 227, which is an arc surface for fitting with the wheel hub.

[0081] Figure 7 This is a structural schematic diagram of the limiting component of this utility model. Figure 8 This is a schematic diagram of the limiting component of this utility model in the locking position. Figure 9 This is a schematic diagram of the limiting component of this utility model in the unlocking position.

[0082] See Figures 2 to 9The claw structure 200 also includes a limiting member 230, which is movably disposed on the support base 210 to switch between a locked position and an unlocked position. In the locked position, the limiting member 230 abuts against the upper surface of the limiting portion 222 to press the locking block 220 downwards onto the support base 210, restricting the upward movement of the locking block 220. The locking block 220 is limited by the positioning protrusion 214 of the support base 210, restricting the horizontal and downward movement of the locking block 220. In the locked position, the limiting member 230 restricts the upward movement of the locking block 220, thereby limiting the locking block 220 to the upper end of the support base 210.

[0083] When in the unlocked position, the limiting member 230 and the locking block 220 separate, and the locking block 220 can move upward relative to the support base 210 to separate from the support base 210. By installing and separating locking blocks 220 of different sizes on the support base 210, it is convenient to limit different locking blocks 220 on the support base 210 so as to limit wheel hubs of different sizes above the vertical chuck 100.

[0084] In this embodiment, the limiting member 230 includes a rotating shaft 231 and a fastening portion 232 disposed on the top of the rotating shaft 231. The rotating shaft 231 extends in the vertical direction and is rotatably connected to the positioning protrusion 214 about its own axis, so that the limiting member 230 can rotate between a locked position and an unlocked position. The limiting member 230 rotates between the locked position and the unlocked position so that the fastening portion 232 can abut against the locking block 220 or the fastening portion 232 can separate from the locking block 220.

[0085] In some embodiments, the upper end of the positioning protrusion 214 is provided with a rotating hole 218, the rotating hole 218 extends in the vertical direction, the rotating shaft 231 passes through the rotating hole 218 and can rotate within the rotating hole 218, so that the limiting member 230 can rotate between the unlocked position and the locked position.

[0086] In some embodiments, the fastening portion 232 is connected to the upper end of the rotating shaft 231 so as to rotate with the rotating shaft 231, and the fastening portion 232 is located at the upper end of the positioning protrusion 214. In the locked position, the lower surface of the fastening portion 232 abuts against the upper end of the limiting portion 222; in the unlocked position, the fastening portion 232 and the limiting portion 222 separate. When rotating from the locked position to the unlocked position, the fastening portion 232 rotates to be misaligned with the locking block 220, so that the locking block 220 can be separated from the upper end of the support base 210.

[0087] In one embodiment, the outer periphery of the rotating shaft 231 is provided with an external thread, so that the rotating shaft 231 is threadedly connected to the positioning protrusion 214. The inner periphery of the rotating hole 218 is provided with an internal thread, and the rotating shaft 231 is threadedly connected to the support 210, so that the rotating shaft 231 is threadedly connected to the support 210.

[0088] In some embodiments, the rotating shaft 231 is sleeved in the rotating hole 218, and the rotating shaft 231 is limited on the positioning protrusion 214 in the vertical direction. The rotation of the rotating shaft 231 can drive the fastening part 232 to rotate.

[0089] In some embodiments, the rotation axis of the rotating shaft 231 is not located at the center of the fastening part 232, and the rotation center of the fastening part 232 is eccentrically located.

[0090] In some embodiments, the fastening part 232 is a non-circular structure such as a semi-circle or a quarter circle. The rotating shaft 231 drives the fastening part 232 to rotate so that the fastening part 232 can rotate to abut against the upper surface of the locking block 220 and rotate to separate the fastening part 232 from the locking block 220.

[0091] In other embodiments, the fastening part 232 is an elliptical or elongated structure, and the rotation axis of the rotating shaft 231 is not located at the center of the fastening part 232.

[0092] In some embodiments, a stop 240 is fixed to the upper end of the positioning protrusion 214. The stop 240 is disposed near the fastening part 232 to stop and limit the rotation range of the fastening part 232.

[0093] In another embodiment, the outer periphery of the rotating shaft 231 is provided with external threads, so that the rotating shaft 231 is threadedly connected to the positioning protrusion 214; a stop member 240 is fixed on the upper end of the positioning protrusion, and the stop member 240 is disposed near the engaging part 232 to stop and limit the rotation range of the engaging part 232. When the stop member 240 rotates forward and reverses to a preset position, the stop member 240 can stop the engaging part 232 respectively, limiting the rotation range of the limiting member 230. The rotating shaft 231 is threadedly connected to the positioning protrusion 214, and there is a risk that the rotating shaft 231 will detach from the positioning protrusion 214. The stop member on the positioning protrusion 214 limits the rotation range of the rotating shaft, thereby preventing the rotating shaft from detaching from the positioning protrusion 214. In some embodiments, the upper surface of the limiting part 222 is provided with a stop groove 226, which is disposed on the side of the positioning slot 223 facing the top and communicates with the positioning slot 223; in the locked position, the fastening part 232 is engaged in the stop groove 226. The fastening part 232 extends into the stop groove 226 and presses downward against the bottom wall of the stop groove 226.

[0094] When moving from the locked position to the unlocked position, the latching part 232 can rotate to disengage from the stop groove 226. The latching part 232 and the locking block 220 separate, allowing the locking block 220 to separate upward from the support base 210.

[0095] In this application, when the locking block 220 is replaced from the upper end of the support base 210, the limiting member 230 is rotated, and the limiting member 230 rotates from the locked position to the unlocked position. The fastening part 232 on the limiting member 230 rotates to separate from the locking block 220, thereby releasing the lock on the locking block 220. The locking block 220 is moved upward until it separates from the positioning protrusion, so that the locking block separates from the support base.

[0096] Move the card block 220 to be installed downward from the preset position above the support base 210, so that the positioning slot 223 on the card block 220 is fitted downward onto the positioning protrusion, and the limiting protrusion on the card block is engaged in the limiting groove. Then rotate the limiting member 230, so that the fastening part of the limiting member 230 rotates from the unlocked position to the locked position, and the fastening part abuts against the upper end face of the card block, limiting the card block on the support base.

[0097] Based on the above description, this application also provides a method for using a wheel hub vertical lathe clamp:

[0098] S10: Adjust the position of the support seat 210 on the vertical chuck 100 radially along the pre-clamped hub according to the size of the hub.

[0099] For example, multiple support seats 210 are fixed to the first toothed assembly 120 by fasteners. The multiple support seats 210 are controlled to move radially along the vertical chuck 100 according to the size of the pre-clamped hub. The first toothed assembly 120 drives the multiple support seats 210 to move away from or towards the center of the vertical chuck 100 in a synchronized manner, so that the enclosing range of the multiple support seats 210 can accommodate the placement of the pre-clamped hub.

[0100] S20: Install the pre-sized card block 220 on the upper end of the support base 210.

[0101] For example, the clamping block 220 to be installed is moved downward from a preset position above the support base 210, so that the positioning slot 223 on the clamping block 220 is fitted downward onto the positioning protrusion 214, and the limiting protrusion 225 on the clamping block 220 is engaged in the limiting groove 216. The curvature of the clamping surface 227 of the clamping block 220 installed on the support base 210 matches the curvature of the outer circumference of the pre-clamped wheel hub.

[0102] S30: The locking block 220 is locked to the upper end of the support base 210 by the limiting member 230.

[0103] For example, the limiting member 230 is installed on the upper end of the positioning protrusion 214. The limiting member 230 is rotated so that the fastening part 232 of the limiting member 230 rotates from the unlocked position to the locked position. The fastening part 232 abuts against the upper end face of the locking block 220, locking the locking block 220 onto the support base 210.

[0104] S40: Multiple jaw structures 200 move synchronously along the radial direction of the vertical chuck 100 toward the center of the vertical chuck 100 to clamp the wheel hub between the multiple jaw structures 200.

[0105] Example: After the limiting member 230 locks the clamping block 220 onto the support base 210, the pre-clamped hub is placed within the enclosure of multiple jaw structures 200. Multiple first tooth sets 120 move synchronously towards the center of the vertical lathe chuck 100 along the radial direction of the chuck 100. The jaw structures 200 move towards the center of the vertical lathe chuck 100 along with the first tooth sets 120. Multiple clamping blocks 220 of the multiple jaw structures 200 abut against the hub. The clamping surface 227 of the clamping block 220 fits against the outer periphery of the hub, clamping the pre-clamped hub. The clamped hub is then used for machining on a vertical lathe.

[0106] After the wheel hub is machined on the wheel hub vertical lathe fixture, the chuck structure 200 moves away from the center of the vertical lathe chuck 100, releasing the clamping of the wheel hub, thereby enabling the machined wheel hub to be removed from the wheel hub vertical lathe fixture.

[0107] S50: When clamping wheel hubs of different sizes on the wheel hub vertical fixture, the corresponding size of the clamping block 220 is adaptively replaced at the upper end of the support 210 according to the size of the pre-clamped wheel hub.

[0108] Example: When clamping different sized wheel hubs on the wheel hub vertical clamp, it is necessary to replace the corresponding sized locking block 220. Rotate the limiting member 230 from the locked position to the unlocked position. The latching part 232 on the limiting member 230 rotates to separate from the locking block 220, releasing the lock on the locking block 220 to be removed. Move the locking block 220 to be removed upwards until it separates from the positioning protrusion 214, so that the locking block 220 to be removed detaches from the support base 210.

[0109] The mounting block 220 is moved downward from a preset position above the support base 210, so that the positioning slot 223 on the mounting block 220 is fitted downward onto the positioning protrusion 214, and the limiting protrusion 225 on the mounting block 220 is engaged in the limiting groove 216. Then, the limiting member 230 is rotated, so that the fastening part 232 of the limiting member 230 rotates from the unlocked position to the locked position, and the fastening part 232 abuts against the upper end face of the mounting block 220, limiting the mounting block 220 on the support base 210.

[0110] Furthermore, when wheel hubs of different sizes are clamped on the wheel hub vertical fixture, different clamping blocks 220 are used to accommodate the outer circumference of wheel hubs of different sizes. The clamping surfaces 227 on different clamping blocks 220 have different curvatures to accommodate the curvature of the outer circumference of wheel hubs of different sizes.

[0111] It should be noted that after the limiting member 230 is installed on the upper end of the support base 210, the stop member 240 is fixed on the upper end of the positioning protrusion 214 to limit the rotation range of the limiting member 230 and prevent the limiting member 230 from falling off the upper end of the support base 210.

[0112] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0113] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, the reference to terms such as "some embodiments," "exemplarily," etc., means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0114] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A jaw structure for a wheel hub vertical car clamp, the wheel hub vertical car clamp including a vertical car chuck; characterized in that, The claw structure includes: A support base for fixing to the upper surface of the vertical chuck; the upper surface of the support base has protruding positioning protrusions. The locking block includes a top abutment and a limiting part; the lower surface of the limiting part is supported on the upper end face of the support base; the limiting part has a positioning slot that extends vertically through it, and the positioning slot is fitted onto the positioning protrusion so that the locking block can be detachably locked onto the support base; the top abutment is located on the limiting part on the side facing the center of the vertical chuck, so as to abut against the wheel hub on the vertical chuck; A limiting member is movably disposed on the support base to switch between a locked position and an unlocked position; in the locked position, the limiting member abuts against the upper surface of the limiting part to press the locking block downward onto the support base; in the unlocked position, the locking block can move upward relative to the support base to separate from the support base.

2. The claw structure according to claim 1, characterized in that, Limiting grooves are respectively formed on the two opposite sides of the positioning protrusion, and the limiting grooves extend upward to the upper end of the positioning protrusion; the positioning slot is open on the side opposite to the limiting part; protruding limiting protrusions are respectively formed on the two opposite sides of the positioning slot; the limiting protrusions are engaged in the limiting grooves and can slide along the extending direction of the limiting grooves.

3. The claw structure according to claim 2, characterized in that, The outer periphery of the limiting protrusion abuts against the peripheral wall of the limiting groove.

4. The claw structure according to claim 1, characterized in that, The positioning protrusion has a top surface on the side facing the center of the vertical chuck; the top surface is inclined towards the center of the vertical chuck in an upward direction and abuts against the side wall of the positioning slot.

5. The claw structure according to claim 4, characterized in that, The positioning bayonet has a mating surface on the side wall near the top, and the mating surface is inclined upward toward the center of the vertical chuck, and the mating surface is in contact with the top surface.

6. The claw structure according to claim 1, characterized in that, The limiting member includes a rotating shaft and a fastening part disposed on the top of the rotating shaft; the rotating shaft extends in the vertical direction and is rotatably connected to the positioning protrusion about its own axis, so that the limiting member can rotate between a locked position and an unlocked position; the fastening part is connected to the upper end of the rotating shaft so that it can rotate with the rotating shaft, and the fastening part is located at the upper end of the positioning protrusion. In the locked position, the lower surface of the fastening part abuts against the upper end of the limiting part; in the unlocked position, the fastening part and the limiting part separate.

7. The claw structure according to claim 6, characterized in that, The upper surface of the limiting part is provided with a stop groove, which is located on the side of the positioning slot facing the top and communicates with the positioning slot. When in the locked position, the fastening part engages within the stop groove; when moving from the locked position to the unlocked position, the fastening part can rotate out of the stop groove.

8. The claw structure according to claim 7, characterized in that, The outer circumference of the rotating shaft is provided with an external thread so that the rotating shaft is threadedly connected to the positioning protrusion; a stop is fixed on the upper end of the positioning protrusion, and the stop is disposed near the fastening part to stop and limit the rotation range of the fastening part.

9. A wheel hub vertical lathe clamp, characterized in that, Includes a vertical lathe chuck and the chuck structure as described in any one of claims 1 to 8; The chuck structure is provided in multiple ways, and the multiple chuck structures are distributed on the vertical chuck around the axis of the vertical chuck.

10. The clamp according to claim 9, characterized in that, The support base is movable relative to the vertical chuck in the radial direction of the vertical chuck, so as to fix the jaw structure at different positions on the vertical chuck.

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