CN219131945U - Clamping device for turntable structure and block-shaped workpiece - Google Patents

Abstract

The utility model provides a clamping device for a turntable structure and a block-shaped workpiece, wherein the turntable structure comprises a floating mechanism, a chuck assembly and a supporting seat; the floating mechanism includes a support member disposed on the chuck assembly and a floating assembly disposed on the support member for rotating the floating assembly relative to the chuck assembly, the floating assembly for contacting the bulk workpiece. The turntable structure provided by the utility model can increase the contact area between the block-shaped workpiece and the floating assembly.

Description

Clamping device for turntable structure and block-shaped workpiece

Technical Field

The utility model relates to the field of grinding and polishing of block-shaped workpieces, in particular to a turntable structure and a clamping device of the block-shaped workpieces.

Background

In polishing a block-shaped workpiece (e.g., a silicon block), it is necessary to polish four sides of the block-shaped workpiece and polish chamfer between adjacent sides.

In the related art, the upper and lower surfaces of the block-shaped workpiece may be clamped by a clamping device such that one of the sides of the block-shaped workpiece to be processed is aligned with the grinding wheel, and then the grinding and polishing operation is performed. In particular, the clamping device may comprise two mutually parallel clamping heads, between which the block-shaped workpiece is clamped.

However, the flatness of at least one of the upper and lower surfaces of some block-shaped workpieces is large (e.g., beveled), resulting in a reduced contact area of the collet with the block-shaped workpiece, which makes it difficult for the collet to firmly grip the block-shaped workpiece.

Disclosure of Invention

The utility model provides a turntable structure and a clamping device of a block-shaped workpiece, which solve the problem of reduced contact area between a chuck and the block-shaped workpiece.

The utility model provides a clamping device for a turntable structure and a block-shaped workpiece, which comprises a floating mechanism, a chuck assembly and a supporting seat, wherein the chuck assembly is arranged on the supporting seat;

the floating mechanism includes a support member disposed on the chuck assembly and a floating assembly disposed on the support member for rotating the floating assembly relative to the chuck assembly, the floating assembly for contacting the bulk workpiece.

In one possible implementation, the turntable structure provided by the present utility model, the floating mechanism further comprises a fixture, the fixture being coupled to the chuck assembly, and the support being disposed on the fixture.

In one possible implementation, the turntable structure provided by the utility model, the floating assembly comprises a floating body, and the floating mechanism further comprises an elastic member, and the elastic member is arranged between the fixing member and the floating body.

In one possible implementation, the turntable structure provided by the utility model, the supporting member is a ball, the surface of the fixing member facing the floating body is provided with a first accommodating groove matched with the ball, the floating body facing the fixing member is provided with a second accommodating groove matched with the ball, and the ball part is positioned in the first accommodating groove and the second accommodating groove.

In one possible implementation, the turntable structure provided by the present utility model, the floating assembly further comprises a spacer disposed on the floating body, the spacer being for contact with the bulk workpiece.

In one possible implementation manner, the turntable structure provided by the utility model is characterized in that the elastic piece is a spring diaphragm, a mounting cavity is formed between the fixing piece and the floating body, the spring diaphragm is positioned in the mounting cavity, and the spring diaphragm is sleeved on the supporting piece.

In one possible implementation, the present utility model provides a turntable structure, the spacer having at least one groove thereon.

In one possible implementation, the present utility model provides a turret structure, a chuck assembly including a chuck body, a turret drive member and a turret drive spindle, a fixture coupled to the chuck body, the turret drive member coupled to the chuck body through the turret drive spindle to drive the chuck body in rotation.

In one possible implementation, the present utility model provides a turret structure, the turret drive and a portion of the turret drive spindle being located within the support base;

the chuck body is located outside the supporting seat.

The utility model also provides a clamping device for the block-shaped workpiece, which comprises a pressing mechanism and any turntable structure, wherein the pressing mechanism comprises a pressing chuck assembly, and the pressing chuck assembly and a floating assembly of the turntable structure jointly clamp the block-shaped workpiece.

The utility model provides a clamping device for a turntable structure and a block-shaped workpiece. Other pressing mechanisms apply pressure to the pressing mechanism and the block-shaped workpiece drives the floating assembly to rotate around the supporting piece, so that the floating assembly rotates at a certain angle relative to the chuck assembly. Therefore, the floating assembly can adapt to the uneven surface of the block-shaped workpiece, the contact area between the block-shaped workpiece and the floating assembly is increased, and the surface contact between the block-shaped workpiece and the floating assembly is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of a silicon rod;

FIG. 2 is a schematic diagram of processing of edge skin silicon material;

FIG. 3 is a schematic view of the processing of silicon strips;

FIG. 4 is a schematic view of the structure of a silicon block;

FIG. 5 is a schematic view of a turntable structure according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of the internal structure of FIG. 5;

FIG. 7 is a use state diagram of FIG. 5;

FIG. 8 is a second schematic diagram of the internal structure of FIG. 5;

fig. 9 is a schematic structural view of a clamping device for a block workpiece according to an embodiment of the utility model;

FIG. 10 is a first view of a clamping device for a bulk workpiece according to an embodiment of the utility model;

FIG. 11 is a schematic view of a portion of the internal structure of FIG. 9;

fig. 12 is a second state diagram of a clamping device for a block workpiece according to an embodiment of the present utility model;

fig. 13 is a third state diagram of a clamping device for a block workpiece according to an embodiment of the present utility model;

fig. 14 is a fourth state diagram of a clamping device for a block workpiece according to an embodiment of the utility model.

Reference numerals illustrate:

1-silicon material;

2-edge skin silicon material;

3-silicon strips;

4-silicon blocks; 41-side; 42-upper surface; 43-lower surface;

100-floating mechanism; 110-a support; 120-a floating assembly; 121-a floating body; 1211-a second accommodation groove; 122-a gasket; 1221-grooves; 130-a fixing piece; 131-a first accommodation groove; 140-elastic members; 150-a first connection; 160-a second connection; 170-a mounting cavity; 180-gap;

200-a chuck assembly; 210-a chuck body; 220-turret drive; 230-turntable drive spindle;

300-supporting seat; 310-connecting holes;

400-block-shaped workpieces;

500-a compressing mechanism; 510-a compression drive assembly; 511-a compacting motor; 512-pressing an electric cylinder; 513-pressing the connection plate; 520-a compression collet assembly; 521-compressing the chuck body; 522—a central axis; 523-chuck turntable; 5231-compression screw; 524-a bearing; 530-a support assembly; 531-pressing the support; 532-skateboard; 540-a guide assembly; 541-linear guide rail; 542-sliders.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the preferred embodiments of the present utility model will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present utility model. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be connected, for example, by a first connection, or indirectly, via an intermediate medium, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms first, second, third and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or display that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or display.

Solar cells, also known as photovoltaic cells or solar photovoltaics, are photovoltaic semiconductor thin films that utilize sunlight to generate electricity. The solar cell may include a crystalline silicon solar cell and a thin film solar cell. The crystalline silicon solar cell technology is mature and wide in application.

The crystalline silicon solar cell can comprise a cell slice which is formed by cutting, squaring, grinding, polishing, slicing and the like of a silicon rod. Fig. 1 is an exploded view of a silicon rod. Referring to fig. 1, a cylindrical silicon rod is cut into a rectangular parallelepiped silicon material 1, the silicon material 1 is cut along a section A-A in fig. 1, the silicon material 1 is divided into two in the X direction, polished, and then cut into desired lengths in the X direction, thereby forming a battery sheet. The silicon materials with the cambered surfaces on one surface of the remaining four surfaces can be called as edge skin silicon materials 2.

FIG. 2 is a schematic diagram of processing of edge skin silicon material; FIG. 3 is a schematic view of the processing of silicon strips. As shown in fig. 2 and 3, the mesothelium material 2 may be utilized for cost saving. Cutting the edge skin silicon material 2 to form a cuboid silicon strip 3, and cutting off the silicon strip 3 along the X direction to form a plurality of silicon blocks 4.

A plurality of (e.g., two or more) silicon blocks 4 are stacked to form a battery sheet. Fig. 4 is a schematic structural view of a silicon block. As shown in fig. 4, the side surface 41 of the silicon block 4 forms an exterior surface and a mounting surface, and therefore, the side surface 41 needs to be polished. The four sides 41 of the silicon block 4 are polished and chamfer is polished between adjacent sides 41, and the upper surface 42 and the lower surface 43 of the silicon block 4 do not need to be machined.

Specifically, in the grinding and polishing process of the silicon block 4, the upper surface 42 and the lower surface 43 of the silicon block 4 can be clamped by the clamping device, so that one of the sides of the block-shaped workpiece to be processed is aligned with the grinding wheel, and then the grinding and polishing operation is performed.

However, when the edge skin silicon material 2 is cut, the flatness of at least one of the upper surface 42 and the lower surface 43 of the silicon block 4 is large (e.g., beveled) due to a processing error. In this way, compared with the upper surface 42 and the lower surface 43 which are parallel to the clamping heads and clamped by the two parallel clamping heads, the contact area between the clamping heads and the block-shaped workpiece is reduced, so that the clamping heads are difficult to firmly clamp the silicon block 4, the silicon block 4 is easy to shake during the polishing operation, and the polishing precision of the silicon block 4 is affected.

Based on this, the embodiment of the utility model provides a clamping device for a turntable structure and a block-shaped workpiece, wherein the turntable structure is provided with a floating mechanism and a chuck assembly, the floating mechanism comprises a supporting piece and a floating assembly, and the chuck assembly is connected with the floating assembly through the supporting piece. Other pressing mechanisms apply pressure to the pressing mechanism and the block-shaped workpiece drives the floating assembly to rotate around the supporting piece, so that the floating assembly rotates at a certain angle relative to the chuck assembly. Therefore, the floating assembly can adapt to the uneven surface of the block-shaped workpiece, the contact area between the block-shaped workpiece and the floating assembly is increased, and the surface contact between the block-shaped workpiece and the floating assembly is ensured.

FIG. 5 is a schematic view of a turntable structure according to an embodiment of the present utility model; FIG. 6 is a schematic diagram of the internal structure of FIG. 5; fig. 7 is a use state diagram of fig. 5. Referring to fig. 5 to 7, the turntable structure provided in the embodiment of the present application includes a floating mechanism 100, a chuck assembly 200, and a support base 300, wherein the chuck assembly 200 is disposed on the support base 300;

the float mechanism 100 includes a support 110 and a float assembly 120, the support 110 being disposed on the collet assembly 200, the float assembly 120 being disposed on the support 110 such that the float assembly 120 rotates relative to the collet assembly 200, the float assembly 120 being configured to contact the bulk workpiece 400.

Wherein the support base 300 is used for supporting the floating mechanism 100. When the hold down mechanism applies pressure to the block 400, the block 400 may drive the float assembly 120 to rotate about the support 110, rotating the float assembly 120 at an angle relative to the collet assembly 200. In this way, the floating assembly 120 can adapt to the uneven surface of the block-shaped workpiece 400, and the contact area between the block-shaped workpiece 400 and the floating assembly 120 is increased, so that the chuck assembly 200 is beneficial to the stability of clamping the block-shaped workpiece 400 together with other pressing mechanisms.

The clamping device for the turntable structure and the massive workpiece is provided with the floating mechanism 100 and the chuck assembly 200, wherein the floating mechanism 100 comprises a support piece 110 and a floating assembly 120, and the chuck assembly 200 is connected with the floating assembly 120 through the support piece 110. Other hold-down mechanisms apply pressure to the hold-down mechanism to the block-shaped workpiece 400, which block-shaped workpiece 400 drives the float assembly 120 to rotate about the support 110, rotating the float assembly 120 through an angle relative to the collet assembly 200. In this way, the floating assembly 120 can adapt to the uneven surface of the block-shaped workpiece 400, the contact area between the block-shaped workpiece 400 and the floating assembly 120 is increased, and the surface contact between the block-shaped workpiece 400 and the floating assembly 120 is ensured. Thereby facilitating the stability of the chuck assembly 200 in cooperation with the hold-down mechanism to hold the bulk workpiece 400.

In the turntable structure provided in the embodiment of the present application, the floating mechanism 100 further includes a fixing member 130, the fixing member 130 is connected with the chuck assembly 200, and the supporting member 110 is disposed on the fixing member 130.

In this application, the fixture 130 is used to provide mounting support for the support 110. In particular implementations, the size of the fixing member 130 may be larger than the size of the supporting member 110, thereby increasing the stability of the fixing member 130 to support the supporting member 110. In addition, the fixing member 130 may also be used as a connection portion of the floating mechanism 100, and connected to the collet assembly 200 through the fixing member 130, so as to mount the floating mechanism 100 on the collet assembly 200.

With continued reference to fig. 7 and 9, in some embodiments, the floating assembly 120 includes a floating body 121, and the floating mechanism 100 further includes an elastic member 140, where the elastic member 140 is disposed between the fixing member 130 and the floating body 121. By providing the elastic member 140, the floating body 121 can be reset. That is, when the block-shaped workpiece 400 is removed from the floating assembly 120, the elastic member 140 drives the floating body 121 to move relative to the fixed member 130, and returns from the deflected state to the horizontal state.

To facilitate installation of the floating body 121, in some embodiments, the securing member 130 and the floating body 121 are sleeved one over the other; one of the fixing member 130 and the floating body 121 has a first connection portion 150, the other has a second connection portion 160, the first connection portion 150 is connected to the second connection portion 160, and a gap 180 is provided therebetween for the floating body 121 to rotate.

The first connecting portion 150 may be a receiving groove, the second connecting portion 160 may be a protruding portion, the protruding portion is inserted into the receiving groove, and a gap 180 is formed between an inner sidewall of the receiving groove and an outer sidewall of the protruding portion.

In the turntable structure provided in the embodiment of the present application, the supporting member 110 is a ball, a surface of the fixing member 130 facing the floating body 121 has a first accommodation groove 131 matching with the ball, the floating body 121 facing the fixing member 130 has a second accommodation groove 1211 matching with the ball, and the ball is partially located in the first accommodation groove 131 and the second accommodation groove 1211.

The supporting member 110 may be a steel ball, which has good wear resistance. The first receiving groove 131 and the second receiving groove 1211 may be hemispherical grooves. In this way, the floating body 121 can rotate around the support 110 in any direction, thereby adapting to different block-shaped workpieces 400.

In some embodiments, the elastic member 140 is a spring diaphragm, a mounting cavity 170 is formed between the fixing member 130 and the floating body 121, the spring diaphragm is located in the mounting cavity 170, and the spring diaphragm is sleeved on the supporting member 110. The spring diaphragm has good elasticity, can automatically adjust the pressing force, and the cutting pressure is distributed uniformly and has long service life.

In addition, in the turntable structure provided in the embodiment of the present application, the floating assembly 120 further includes a spacer 122, the spacer 122 is disposed on the floating body 121, and the spacer 122 is used to contact the bulk workpiece 400. The floating body 121 is protected from abrasion by the gasket 122.

In particular implementations, the gasket 122 may be sleeved over the floating body 121, thereby facilitating installation of the gasket 122.

In some embodiments, the gasket 122 and the floating body 121 may be connected by a screw, thus increasing the stability of the connection of the gasket 122 and the floating body 121.

The gasket 122 is provided with at least one groove 1221, wherein the groove 1221 may be cross-shaped, the groove 1221 may play a role in draining water on the gasket 122, and the groove 1221 may avoid the problem that the gasket 122 is too tightly attached to the bulk workpiece 400, resulting in difficulty in removing the bulk workpiece 400 from the gasket 122.

Fig. 8 is a second schematic diagram of the internal structure of fig. 5. Referring to fig. 5 and 8, in some embodiments, the support base 300 further has a connection hole 310, where the connection hole 310 may be a stepped hole, and a screw is screwed into the stepped hole to fix the support base 300 on other pressing mechanisms. In another embodiment, the support base 300 may be connected to other pressing mechanisms by a detachable connection manner such as a clamping connection.

In the turntable structure provided in the embodiment of the present application, the chuck assembly 200 includes a chuck body 210, a turntable driving member 220, and a turntable driving spindle 230, the fixing member 130 is connected to the chuck body 210, and the turntable driving member 220 is connected to the chuck body 210 through the turntable driving spindle 230 to drive the chuck body 210 to rotate.

In this way, the floating mechanism 100 can be driven to rotate by the chuck assembly 200, and when the floating mechanism 100 rotates, different sides of the block-shaped workpiece 400 can face the polishing equipment in cooperation with other pressing mechanisms, and the different sides of the block-shaped workpiece 400 and the chamfer angles on the block-shaped workpiece 400 can be respectively polished by the polishing equipment. Thus, the need to disassemble and reinstall the block-shaped workpiece 400 from the turret structure when grinding different sides of the block-shaped workpiece 400 is avoided, and the work efficiency is improved.

In some embodiments, the turntable drive 220 and a portion of the turntable drive spindle 230 are located within the support base 300; the chuck body 210 is located outside the support base 300. The support base 300 has an inner cavity therein, which provides installation space for the turntable driving member 220 and a part of the turntable driving spindle 230. The cavity may also support a turntable drive spindle 230.

The size of the collet body 210 may be larger than the size of the fixture 130, thereby stably supporting the fixture 130. The collet body 210 and the fixture 130 may be coupled by screws, thereby increasing the stability of the coupling of the collet body 210 with the fixture 130.

Fig. 9 is a schematic structural view of a clamping device for a block workpiece according to an embodiment of the utility model; FIG. 10 is a first view of a clamping device for a bulk workpiece according to an embodiment of the utility model; fig. 11 is a schematic view of a part of the internal structure of fig. 9. Referring to fig. 9 to 11, the present utility model further provides a clamping device for a bulk workpiece, which includes a pressing mechanism 500 and a turntable structure provided in any of the above embodiments, wherein the pressing mechanism 500 includes a pressing chuck assembly 520, and the pressing chuck assembly 520 and a floating mechanism 100 of the turntable structure jointly clamp the bulk workpiece 400.

The structure and the working principle of the turntable structure are described in the above embodiments, and are not described in detail herein.

The compressing mechanism comprises a compressing driving assembly 510, the compressing chuck assembly 520 comprises a compressing chuck body 521, a central shaft 522 and a chuck turntable 523, the central shaft 522 is connected with the chuck turntable 523, the central shaft 522 is located in the compressing chuck body 521, the central shaft 522 rotates relative to the compressing chuck body 521, and the compressing driving assembly 510 drives the compressing chuck body 521 to lift in the vertical direction. In this way, the compression drive assembly 510 may move the central shaft 522 and the collet turntable 523 toward the collet assembly 200 by compressing the collet body 521.

In a specific implementation, the compression driving assembly 510 may include a compression motor 511, a compression electric cylinder 512 and a compression connection plate 513, where the compression motor 511 is connected with the compression electric cylinder 512, the compression electric cylinder 512 is connected with the compression chuck 521 through the compression connection plate 513, and the compression motor 511 drives the compression chuck 521 to lift along the vertical direction through the compression electric cylinder 512 and the compression connection plate 513.

Wherein, compress tightly still be provided with panel beating protection casing or organ protection casing protection on the jar 512 to prevent that water smoke from getting into the inside that compresses tightly the jar 512.

It will be appreciated that the floating mechanism 100 may also be provided on the collet turntable 523. In this way, the stability of clamping the block-shaped workpiece 400 can be maintained even when both of the opposing clamping surfaces of the block-shaped workpiece 400 are inclined surfaces.

In some embodiments, the chuck turntable 523 has at least one compression screw 5231 thereon, the compression screw 5231 being configured to contact the bulk workpiece 400. The number of the pressing screws 5231 can be two or more, and the pressing screws 5231 form multi-point support for the block-shaped workpiece 400 so as to adapt to the unevenness of the contact surface of the block-shaped workpiece 400 and the pressing screws 5231, thereby increasing the stability of the pressing screws 5231 for pressing the block-shaped workpiece 400.

In this application, the compression collet assembly 520 further includes a bearing 524, and the central shaft 522 is coupled to the compression collet body 521 by the bearing 524. The turret structure may apply force to the collet turntable 523 and the compression screw 5231 through the block workpiece 400 to rotate the collet turntable 523, the compression screw 5231, and the central shaft 522 relative to the compression collet body 521 to orient the different sides of the block workpiece 400 toward the polishing apparatus.

In some embodiments, hold-down mechanism 500 further includes a support assembly 530, and hold-down drive assembly 510, hold-down collet assembly 520, and turret structure are all disposed on support assembly 530. In this way, the compression drive assembly 510, compression collet body 521 and turret structure may be supported by the support assembly 530.

Wherein, the support assembly 530 may include a pressing support 531 and a sliding plate 532, and the pressing support 531 is disposed at the sliding plate 532. The hold-down cylinder 512 and the hold-down collet assembly 520 of the hold-down drive assembly 510 are both connected to the hold-down support 531, with the hold-down drive assembly 510 positioned above the hold-down collet assembly 520. The turret structure is coupled to a slide plate 532 and the compression collet assembly 520 is positioned above the turret structure.

The slide plate 532 may be provided with a sliding portion, which may be a chute, and is connected to the guide rail by the sliding portion, so that the entire clamping device for the block-shaped workpiece moves relative to the guide rail.

To limit the direction of lifting of the compression collet assembly 520, deflection of the compression collet assembly 520 during lifting is avoided. In some embodiments, the pressing mechanism 500 further includes a guide assembly 540, where the guide assembly 540 includes at least one linear guide 541 and at least one slider 542, the slider 542 is slidably connected to the linear guide 541 in a one-to-one correspondence manner, the linear guide 541 is connected to the support assembly 530, and the slider 542 is fixed relative to the pressing chuck body 521, for example, the slider 542 is connected to the pressing chuck body 521 by the pressing connection plate 513, so that the slider 542 moves synchronously with the pressing chuck body 521, and the sliding direction of the slider 542 coincides with the lifting direction of the pressing chuck body 521 (that is, the extending direction of the linear guide 541 coincides with the lifting direction of the pressing chuck body 521). Thereby, the guide assembly 540 provides a guide for the compression collet body 521.

In a specific implementation, the two sides of the compressing chuck 521 are provided with a linear guide 541, so that the compressing chuck 521 is guided uniformly.

Fig. 12 is a second state diagram of a clamping device for a block workpiece according to an embodiment of the present utility model; fig. 13 is a third state diagram of a clamping device for a block workpiece according to an embodiment of the present utility model; fig. 14 is a fourth state diagram of a clamping device for a block workpiece according to an embodiment of the utility model. Referring to fig. 6, 10, and 12 to 14, the working mode of the clamping device for a block-shaped workpiece according to the embodiment of the utility model will be described.

The block-shaped workpiece 400 is placed on the floating mechanism 100, and the pressing cylinder 512 drives the pressing connection plate 513 to move downward in the vertical direction (or the extending direction of the linear guide 541), and further drives the pressing chuck assembly 520 to move downward in the vertical direction until the pressing screw 5231 presses the block-shaped workpiece 400 with a set pressing force. The compression screw 5231 can accommodate irregularities in the block workpiece 400 at the interface with the compression screw 5231 (e.g., the upper compression surface of the block workpiece 400), and the floating characteristics of the floating mechanism 100 can accommodate irregularities in the lower compression surface of the block workpiece 400, thereby firmly clamping the non-parallel upper and lower compression surfaces of the block workpiece 400.

As shown in fig. 10, the block-shaped workpiece 400 is ground for the first time. In this case, in the first grinding, it is possible to grind both of the opposite sides of the block-shaped workpiece 400 at the same time, that is, both of the opposite sides of the block-shaped workpiece 400 are provided with grinding devices, so that work efficiency can be provided.

The turntable drive 220 drives the block-shaped workpiece 400 to rotate 90 deg. to rotate the block-shaped workpiece 400 to the position shown in fig. 12 while grinding the other opposite sides of the block-shaped workpiece 400. Thereby, the grinding processing of the four sides of the block-shaped workpiece 400 is completed.

The turntable drive 220 drives the block-shaped workpiece 400 to rotate 45 ° (e.g., the position shown in fig. 13) and 135 ° (e.g., the position shown in fig. 14), respectively, to complete the chamfering process.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The turntable structure is characterized by comprising a floating mechanism, a chuck assembly and a supporting seat, wherein the chuck assembly is arranged on the supporting seat;

the floating mechanism comprises a support and a floating assembly, wherein the support is arranged on the chuck assembly, the floating assembly is arranged on the support so as to enable the floating assembly to rotate relative to the chuck assembly, and the floating assembly is used for being in contact with a block-shaped workpiece.

2. A turret structure according to claim 1, wherein said floating mechanism further includes a fixture coupled to said chuck assembly, said support member being disposed on said fixture.

3. A turret structure according to claim 2, wherein said float assembly includes a float body, said float mechanism further including a resilient member disposed between said fixed member and said float body.

4. A turret structure according to claim 3, wherein said support member is a ball, said side of said fixture facing said floating body has a first receiving slot for mating with said ball, said floating body facing said fixture has a second receiving slot for mating with said ball, and said ball portions are located within said first receiving slot and said second receiving slot.

5. A turret structure according to claim 3, wherein the float assembly further includes a spacer disposed on the float body for contact with the block-shaped workpiece.

6. A turret structure according to claim 3, wherein said elastic member is a spring diaphragm, a mounting cavity is formed between said fixed member and said floating body, said spring diaphragm is located in said mounting cavity, and said spring diaphragm is sleeved on said support member.

7. Turntable structure according to claim 5, characterized in that said spacer has at least one groove.

8. A turret structure according to any one of claims 2 to 7 wherein the chuck assembly includes a chuck body, a turret drive member and a turret drive spindle, the fixture being coupled to the chuck body, the turret drive member being coupled to the chuck body by the turret drive spindle to drive the chuck body in rotation.

9. Turntable structure according to claim 8, characterized in that said turntable drive and part of said turntable drive spindle are located in said support seat;

the chuck body is located outside the supporting seat.

10. A clamping device for a block-shaped workpiece, characterized by comprising a pressing mechanism and a turntable structure according to any one of claims 1 to 9, the pressing mechanism comprising a pressing jaw assembly which cooperates with a floating assembly of the turntable structure to clamp the block-shaped workpiece.

Images