Hub clamping equipment

Abstract

The utility model provides hub clamping equipment which comprises a first mounting base and a second mounting base which are arranged in a stacked mode and jointly form a moving channel penetrating in the vertical direction. A plurality of clamping blocks surround the moving channel at intervals, each clamping block is provided with a clamping section and an adjusting section which are connected, the clamping sections and the adjusting sections extend in the directions of the second mounting base and the moving channel respectively, and the connecting positions of the clamping sections and the adjusting sections are in running fit with the second mounting base; the driving block slides back and forth in the moving channel in the vertical direction, an annular groove is formed in the circumferential face of the driving block with the central axis of the moving channel as the axis, and the adjusting section extends into the annular groove in a clearance mode so that the multiple clamping blocks can have a clamping state and a releasing state when the driving block slides. The clamping device solves the technical problem that traditional clamping equipment is prone to positioning deviation.

Description

Technical Field

[0001] The utility model relates to the technical field of hub grinding, in particular to a hub clamping device. Background Art

[0002] In order to ensure the service life and aesthetic degree of automobile hubs (covers), it is an essential step to repair and grind the hubs. That is, after the die-cast blanks of the hubs are processed by turning on a machine tool, a lot of irregular burrs and flash will be generated, and a grinding device is required to polish and grind them one by one. Before grinding, the automatic positioning and clamping of the hubs usually adopt the method of multiple cylinders or multiple motors working together to firmly fix the hubs. Once a certain cylinder or motor has a problem, it will cause positioning deviation; and the above method also needs to be combined with an auxiliary positioning structure to quickly center and position the hubs, and the increase of the structure also increases the installation area of the entire device, which has certain limitations for the initial installation and subsequent maintenance. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides a hub clamping device to solve the technical problem of easy positioning deviation of traditional clamping devices in related technologies.

[0004] The utility model provides a hub clamping device, including:

[0005] A first mounting seat, formed with a first mounting opening;

[0006] A second mounting seat, stacked on the upper end of the first mounting seat, the second mounting seat is formed with a second mounting opening communicating with the first mounting opening, and is used to jointly form a moving channel penetrating in the up-down direction;

[0007] A plurality of clamping blocks, spaced around the moving channel, each clamping block has a connected clamping section and an adjusting section, the clamping section and the adjusting section extend towards the second mounting seat and the moving channel respectively, and the connection part between the two is rotationally matched with the second mounting seat; and

[0008] A driving block, reciprocatingly sliding up and down in the moving channel, an annular groove is provided on the peripheral surface of the driving block with the central axis of the moving channel as the axis, and the adjusting section extends into the annular groove with a gap, so that when the driving block slides, the plurality of clamping blocks have a clamping state and a releasing state;

[0009] In the clamping state, the driving block moves downward and presses the adjusting section, so that the plurality of clamping sections synchronously contract inward;

[0010] In the releasing state, the driving block moves upward and pulls the adjusting section, so that the plurality of clamping sections synchronously extend outward.

[0011] Further, the second mounting seat is provided with a plurality of notches, and the plurality of notches correspond to the plurality of clamping blocks one by one for avoiding each clamping block.

[0012] Further, the clamping section is a C-shaped structure, and its upper end extends towards the direction of the second mounting opening.

[0013] Further, the upper end of the clamping section is a clamping point position; and / or

[0014] The upper end of the clamping section is provided with a mounting point position.

[0015] Further, at least one inwardly contracting constriction structure is provided at one end of the adjusting section close to the annular groove.

[0016] Further, a lead screw is rotatably provided in the first mounting opening, the lead screw is arranged in the up-down direction and extends into the second mounting opening, and the driving block is connected to the lead screw through a sliding seat.

[0017] Further, a spring is provided in the first mounting opening, and two ends of the spring are respectively connected to the bottom of the first mounting opening and the driving block.

[0018] Further, the second mounting seat is provided with a stepped surface.

[0019] Compared with the prior art, the utility model has the following beneficial effects: The first mounting seat and the second mounting seat which are arranged in a stacked manner can be configured to form a moving channel that penetrates in the up-down direction for the driving block to slide back and forth in the up-down direction at this channel; Through the sliding of the driving block, the adjusting section extending into its annular groove can move synchronously, so that the adjusting section can abut against or separate from the upper and lower end surfaces of the annular groove. When the driving block moves downward and the upper end surface of the annular groove abuts against the adjusting section, the adjusting section can be continuously pressed downward during continuous movement, so that the clamping section contracts inward through the rotational cooperation relationship between the clamping block and the second mounting seat to clamp the hub therebetween; At the same time, since a plurality of clamping sections are all driven by the driving block, the plurality of clamping sections can contract inward synchronously. During this process, not only can the hub therebetween be automatically aligned to its center, but also it can finally be clamped on the hub surface to avoid positioning deviation; Similarly, when the driving block moves upward and the lower end surface of the annular groove abuts against the adjusting section, the clamping section is continuously pulled outwards by continuously pulling up the adjusting section by the driving block, which is convenient for releasing the hub therebetween; This process is synchronously driven by a single driving block, with a high degree of coordination, can automatically align the center for positioning, has a simple structure and is convenient for installation. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the hub clamping device in the use state in an embodiment of the utility model;

[0021] Figure 2 The structural schematic diagram of the hub clamping device in an embodiment of the present utility model;

[0022] Figure 3 The cross-sectional view of the hub clamping device in an embodiment of the present utility model;

[0023] Figure 4 The exploded view of the hub clamping device in an embodiment of the present utility model;

[0024] Figure 5 The structural schematic diagram of the clamping block in an embodiment of the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1. First mounting seat; 101. First mounting opening; 2. Second mounting seat; 201. Second mounting opening; 202. Notch; 203. Step surface; 3. Clamping block; 301. Clamping section; 302. Clamping point position; 303. Adjusting section; 304. Necking structure; 4. Driving block; 401. Annular groove; 5. Lead screw; 6. Spring.

[0027] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0028] In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer and more understandable, the technical solutions in the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] In the embodiment of the present utility model, as Figures 1 - 5As shown in the figure, the hub clamping device includes: a first mounting seat 1, a second mounting seat 2, a plurality of clamping blocks 3, and a driving block 304 necking structure 4; The first mounting seat 1 is formed with a first mounting opening 101; The second mounting seat 2 is stacked on the upper end of the first mounting seat 1. The second mounting seat 2 is formed with a second mounting opening 201 communicating with the first mounting opening 101, and is used to jointly form a moving channel penetrating in the up and down direction; A plurality of clamping blocks 3 are spaced around the moving channel. Each clamping block 3 has a connected clamping section 301 and an adjusting section 303. The clamping section 301 and the adjusting section 303 extend towards the second mounting seat 2 and the moving channel respectively, and the connection between the two is rotationally matched with the second mounting seat 2; The driving block 304 necking structure 4 reciprocates up and down in the moving channel. An annular groove 401 is provided on the peripheral surface of the driving block 304 necking structure 4 with the central axis of the moving channel as the axis. The adjusting section 303 extends into the annular groove 401 with a gap, so that when the driving block 304 necking structure 4 slides, a plurality of the clamping blocks 3 have a clamping state and a release state; In the clamping state, the driving block 304 necking structure 4 moves downward and presses the adjusting section 303, so that a plurality of the clamping sections 301 contract inward synchronously; In the release state, the driving block 304 necking structure 4 moves upward and pulls the adjusting section 303, so that a plurality of the clamping sections 301 extend outward synchronously.

[0030] Specifically, in the embodiment of the present invention, the first mounting seat 1 and the second mounting seat 2 are respectively provided with a first mounting opening 101 and a second mounting opening 201 communicating with each other to form a moving channel penetrating in the up and down direction; In order to make the moving channel smooth and burr-free, its cross-section is circular. Of course, in order to improve the stability of the device, the bottom of the first mounting seat 1 extends outward to form an outer flange to increase the weight of the bottom of the first mounting seat 1; At the same time, a plurality of mounting holes are provided on the outer flange, which is convenient for fixing the first mounting seat 1 to the operation table; And the first mounting seat 1 and the second mounting seat 2 adopt a detachable connection method, which is convenient for installation and maintenance.

[0031] In the embodiment of the present invention, a plurality of clamping blocks 3 are spaced around the above-mentioned moving channel (such as Figure 2As shown in the figure, in this embodiment, three clamping blocks 3 are taken as an example. Each clamping block 3 includes a connected clamping section 301 and an adjusting section 303. Part of the clamping section 301 is located above the second mounting seat 2 and is used to cooperate with the other two clamping sections 301 to form a clamping cavity, and the hub can be placed therein to check its status. At the same time, the second mounting seat 2 can also be used as a support table for supporting the hub. The above-mentioned adjusting section 303 extends towards the moving channel, and a pin shaft is provided at the connection between the clamping section 301 and the adjusting section 303, so that the clamping block 3 is hinged to the second mounting seat 2, so as to facilitate the positive and negative rotation of the clamping block 3 under the action of an external force, thereby increasing or decreasing the above-mentioned clamping cavity.

[0032] In the embodiment of the present invention, a driving block 304 necking structure 4 is slidably provided in the moving channel along the up and down direction. A circular groove 401 is provided on the surface of the driving block 304 necking structure 4 for accommodating the adjusting section 303, so that part of the adjusting section 303 can extend into the circular groove 401 at intervals, so as to make the adjusting section 303 abut against the upper end surface or the lower end surface of the circular groove 401 during the sliding process of the driving block 304 necking structure 4, and synchronously drive the three clamping sections 301 to contract inward and then expand outward through the adjusting section 303.

[0033] Specifically, since the clamping block 3 is rotatably arranged on the second mounting seat 2 and there is a gap between its adjusting section 303 and the circular groove 401; when the driving block 304 necking structure 4 continuously slides downward, the upper end surface of the circular groove 401 can be made to abut against the adjusting section 303 and continuously press down the adjusting section 303, and the clamping section 301 is gradually contracted inward through the rotation point of the clamping block 3 and the second mounting seat 2 to reduce the clamping space and facilitate clamping the hub therein. At the same time, since the driving block 304 necking structure 4 can press down the three adjusting sections 303 at the same time, the three clamping sections 301 can contract inward synchronously. During this process, the hub therein can be pushed to automatically find its center and finally be clamped on the surface of the hub, with accurate positioning, saving the intermediate auxiliary positioning structure, and being convenient and fast. Moreover, using the same driving block 304 necking structure 4 can make the three clamping blocks move synchronously, avoiding the positioning error caused by multiple driving sources. On the contrary, when it is necessary to release the hub therein, the driving block 304 necking structure 4 continuously moves upward, making the lower end surface of the circular groove 401 abut against the adjusting section 303 and lifting the adjusting section 303, so as to make the clamping block 3 rotate through the rotation point and make the clamping section 301 gradually extend outward, and gradually increase the clamping space to take out the hub therein.

[0034] In this embodiment, the driving block 304 has a necking structure; the up-and-down reciprocating sliding of 4 enables the adjustment section 303 of the clamping block 3 to move along, so as to change the rotation direction of the clamping section 301 by changing the rotation points of the clamping block 3 and the second mounting seat 2, so that the three clamping sections 301 can contract inward or extend outward, realizing the reduction or increase of the clamping space, facilitating the clamping or releasing of the wheel hub; the clamping block 3 is driven in the way of using the same driving source, with better coordination and simpler structure. At the same time, the cooperation of the three clamping blocks 3 can automatically locate the center of the wheel hub, realizing precise positioning and facilitating subsequent grinding.

[0035] As Figures 2 - 4 shown, in one embodiment, the second mounting seat 2 is provided with a plurality of notches 202, and the plurality of notches 202 correspond to the plurality of clamping blocks 3 one by one, and are used to avoid each clamping block 3. Specifically, in order to facilitate the installation of the clamping block 3 at the second mounting seat 2, three notches 202 are arranged on the second mounting seat 2 in this embodiment, and each clamping block 3 extends into the second mounting seat 2 through each notch 202, facilitating the extension of the adjustment section 303 in the direction of the moving channel; at the same time, the clamping block 3 is rotatably arranged on the side of the notch 202, providing an installation space for the clamping block 3.

[0036] As Figure 5 shown, in one embodiment, the clamping section 301 is a C-shaped structure, and its upper end extends towards the second mounting opening 201. Specifically, in order to enable the clamping section 301 to extend above the second mounting seat 2, the clamping section 301 is defined as a C-shaped structure in this embodiment, so that its upper end can extend towards the second mounting opening 201, and its lower end is used to connect the adjustment section 303; and the C-shaped structure can bypass the surface of the second mounting seat 2, facilitating the forward and reverse rotation of the clamping block 3 on the second mounting seat 2.

[0037] Preferably, the upper end of the clamping section 301 is a clamping point 302, which is used to directly abut against the surface of the wheel hub to clamp the wheel hub; in other embodiments, the upper end of the clamping section 301 is provided with a mounting point, which can be a threaded hole for detachably fixing a clamping member, and the clamping member can be a clamping wheel, an arc-shaped clamping block, etc. This improves the versatility of the device.

[0038] As Figure 5 shown, in one embodiment, at least one necking structure that contracts inward is provided at one end of the adjustment section 303 close to the annular groove 401. Specifically, in order to prevent part of the adjustment section 303 from hindering the movement of the end extending into the annular groove 401, two necking structures are arranged in a mirror image at one end of the adjustment section 303 close to the annular groove 401 in this embodiment, and at least part of the necking structure protrudes outside the annular groove 401 to reduce the occlusion of the annular groove 401 at this place, facilitating the overall forward and reverse rotation of the clamping block 3.

[0039] As Figure 3 、 Figure 4 shown, in one embodiment, a lead screw 5 is rotatably provided in the first mounting opening 101. The lead screw 5 is arranged in the up-and-down direction and extends into the second mounting opening 201. The driving block 304 has a necking structure; 4 is connected to the lead screw 5 through a sliding seat. Specifically, in order to enable the driving block 304 with a necking structure; 4 to slide back and forth in the up-and-down direction, a lead screw 5 is provided at the first mounting opening 101. The lead screw 5 is driven by a motor (not shown) provided in the first mounting opening 101 to facilitate the forward and reverse rotation of the lead screw 5. The sliding seat sleeved thereon is connected to the driving block 304 with a necking structure; 4 to drive the driving block 304 with a necking structure; 4 to slide back and forth up and down through the sliding seat. Of course, in order to improve the stability of the driving block 304 with a necking structure; 4, nuts cooperating with the lead screw 5 can be provided on both its upper and lower end faces to prevent the driving block 304 with a necking structure; 4 from bouncing up and down during sliding.

[0040] As Figure 3 、 Figure 4 shown, in one embodiment, a spring 6 is provided in the first mounting opening 101. Two ends of the spring 6 are respectively connected to the bottom of the first mounting opening 101 and the driving block 304 with a necking structure; 4. Specifically, in order to limit the driving block 304 with a necking structure; 4 and play a buffering role, in this embodiment, a spring 6 is provided in the first mounting opening 101. Two ends of the spring 6 are respectively connected to the bottom of the first mounting opening 101 and the driving block 304 with a necking structure; 4, and the lead screw 5 passes through the spring 6, and the two do not interfere with each other. When the driving block 304 with a necking structure; 4 continuously moves downward, the spring 6 can be compressed, and when it continuously moves upward, the spring 6 is gradually released.

[0041] In one embodiment, the second mounting seat 2 is provided with a stepped surface 203 for supporting the wheel hub.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A wheel hub clamping device, characterized in that: include: A first mounting seat is formed with a first mounting opening; A second mounting seat is stacked on the upper end of the first mounting seat, and the second mounting seat is formed with a second mounting opening connected with the first mounting opening, so as to jointly form a moving channel penetrating in the up-down direction; A plurality of clamping blocks are spaced around the moving channel, each of the clamping blocks has a clamping section and an adjusting section connected to each other, the clamping section and the adjusting section extend toward the second mounting seat and the moving channel respectively, and the connection between the two is rotatably matched with the second mounting seat; as well as A driving block is slidable in the moving channel in an up-and-down direction, and an annular groove is provided on the circumference of the driving block with the central axis of the moving channel as the axis, and the adjustment section gap extends into the annular groove, so that the plurality of clamping blocks have a clamping state and a releasing state when the driving block slides; In the clamping state, the driving block moves downward and presses down the adjusting section, so that the plurality of clamping sections shrink inward synchronously; In the released state, the driving block moves upward and pulls the adjusting section, so that the plurality of clamping sections extend outward synchronously.

2. The wheel hub clamping device according to claim 1, characterized in that: The second mounting seat is provided with a plurality of notches, and the plurality of notches correspond to the plurality of clamping blocks one by one, and are used to avoid the clamping blocks.

3. The wheel hub clamping device according to claim 1, characterized in that: The clamping section is a C-shaped structure, and its upper end extends toward the second mounting opening.

4. The wheel hub clamping device according to claim 3, characterized in that: The upper end of the clamping section is a clamping point; and / or The upper end of the clamping section is provided with a mounting point.

5. The wheel hub clamping device according to claim 1, characterized in that: One end of the adjusting section close to the annular groove is provided with at least one inwardly contracted shrinking structure.

6. The wheel hub clamping device according to any one of claims 1 to 5, characterized in that: The first installation opening is rotatably provided with a screw rod, which is arranged in an up-down direction and extends into the second installation opening, and the driving block is connected to the screw rod through a sliding seat.

7. The wheel hub clamping device according to claim 6, characterized in that: A spring is arranged in the first mounting opening, and two ends of the spring are respectively connected to the bottom of the first mounting opening and the driving block.

8. The wheel hub clamping device according to claim 1, characterized in that: The second mounting seat is provided with a step surface.

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