Clamping device for square tube multi-face grinding

Abstract

The clamping device comprises a first limiting disc and a second limiting disc, the first limiting disc and the second limiting disc are the same in structure, the first limiting disc comprises an annular frame, a shell assembly and a driving disc arranged in the shell assembly, the shell assembly is rotationally connected to the annular frame through a bearing, and the driving disc is arranged in the shell assembly. A clamping block is arranged on the end face of the shell assembly and does centripetal motion under the action of the driving disc to fixedly clamp the square pipe. The first limiting disc and the second limiting disc are connected through the connecting rod, and when a handle arranged on the first limiting disc rotates, the second limiting disc can synchronously rotate to change the orientation of the machining face of the square pipe. According to the limiting assembly, a double-layer fixing table is formed through the first limiting disc and the second limiting disc, and the stability in the square tube fixing process is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing, and in particular relates to a clamping device used for multi-surface grinding of square pipes. Background Art

[0002] Square tube is a name for square tubes, that is, steel tubes with equal sides. It is made by rolling steel strips through processing. Generally, the steel strips are unpacked, flattened, curled, and welded to form round tubes, which are then rolled into square tubes and cut into required lengths.

[0003] During the square tube processing process, the outer wall of the square tube needs to be polished. Usually, a single set of clamping devices similar to a four-jaw chuck clamping structure is used to clamp the outer wall of one end of the square tube, and the other end of the square tube is directly placed on the platform. During the processing, the other end of the square tube is in an unrestricted state, and the overall structural stability is insufficient. The deflection force generated during the polishing process will cause the square tube to move, which ultimately leads to poor polishing effect. Utility Model Content

[0004] The utility model provides a clamping device for multi-faceted grinding of square tubes, aiming to solve the problem that currently a single set of clamping devices is usually used to fix the square tubes, the overall structural stability is insufficient, the deflection force generated during the grinding process causes the square tubes to move, and ultimately leads to poor grinding effects.

[0005] The utility model is implemented as follows: a clamping device for multi-faceted grinding of square tubes, comprising:

[0006] A first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate have the same structure, the first limiting plate comprises a ring frame, a shell assembly and a driving plate arranged inside the shell assembly, the shell assembly is rotatably connected to the ring frame through a bearing, a placement hole for accommodating the square tube passing through is arranged at the center of the driving plate and the shell assembly, and a clamping block is arranged on the end surface of the shell assembly, and the clamping block moves centripetally under the action of the driving plate to fix and clamp the square tube assembled in the placement hole;

[0007] A connecting rod is provided between the first limiting plate and the second limiting plate. When the handle provided on the first limiting plate rotates, the second limiting plate will rotate synchronously to change the direction of the processing surface of the square tube.

[0008] Preferably, the housing assembly comprises a back plate and an outer cover; an inner ring shell is provided at the center of the back plate, and the inner ring shell is connected to the drive disc via a bearing.

[0009] Preferably, the clamping device for multi-faceted grinding of square tubes further comprises a mounting plate, and the first limiting plate and the second limiting plate are both arranged on the mounting plate.

[0010] Preferably, the guide slot is arranged on the end surface of the outer cover away from the back plate, and the clamping block slides in the guide slot and extends to the inside of the outer cover.

[0011] Preferably, a spiral guide rail is provided on the end surface of the driving disc away from the back plate, and the spiral guide rail is meshedly connected with the portion of the clamping block extending into the interior of the outer cover.

[0012] Preferably, the clamping block comprises a guide rail and a supporting block; the supporting block is arranged on the guide rail, and a rack structure is provided on the end surface of the guide rail away from the supporting block, and the rack structure provided on the guide rail is meshedly connected with the driving disk.

[0013] Preferably, a soft rubber pad is further provided on the supporting block, and the supporting block is in contact and connected with the square tube via the soft rubber pad.

[0014] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0015] The clamping device for multi-faceted grinding of square tubes provided by the utility model forms a double-layer fixing platform through the limiting assembly through the first limiting plate and the second limiting plate, thereby enhancing the stability of the square tube during fixing and ensuring the grinding quality of the final product. Moreover, when performing a steering operation, the first limiting plate and the second limiting plate rotate synchronously, thereby improving the torsion transmission effect, reducing the difficulty of operation and alleviating the workload of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a clamping device for multi-surface grinding of square tubes.

[0017] Figure 2 The utility model provides a schematic diagram of the structure of a limit assembly of a clamping device for multi-surface grinding of a square tube.

[0018] Figure 3 The utility model is a schematic diagram of the structure of a first limiting disk of a clamping device for multi-surface grinding of a square tube.

[0019] Figure 4 The utility model provides a schematic diagram of the internal structure of a first limiting plate in a clamping device for multi-surface grinding of a square tube.

[0020] Figure 5 The utility model provides a schematic diagram of the structure of a clamping block of a clamping device for multi-surface grinding of a square tube.

[0021] Figure 6 The utility model is a schematic diagram of the end face structure of a first limiting disk of a clamping device for multi-faceted grinding of a square tube.

[0022] Figure 7 The utility model is a schematic diagram of a driving disc structure of a clamping device for multi-surface grinding of square tubes.

[0023] Description of reference numerals:

[0024] 100, mounting seat; 110, base; 120, lifting seat; 130, lifting platform;

[0025] 200, limit assembly; 210, first limit plate; 211, back plate; 212, drive plate; 213, outer cover; 2131, guide slide; 214, drive rod; 215, clamping block; 2151, guide slide; 2152, holding block; 2153, soft rubber pad; 216, ring frame; 217, handle; 220, second limit plate; 230, connecting rod; 240, mounting plate;

[0026] 300, pad;

[0027] 400. Polishing components. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The present invention provides a clamping device for multi-faceted grinding of square tubes. Figure 1-Figure 7 As shown, the clamping device for multi-faceted grinding of square tubes comprises:

[0031] A first limiting plate 210 and a second limiting plate 220, the first limiting plate 210 and the second limiting plate 220 have the same structure, the first limiting plate 210 comprises a ring frame 216, a shell assembly and a driving plate 212 arranged inside the shell assembly, the driving plate 212 and the shell assembly are provided with a placement hole at the center thereof for accommodating the square tube to pass through, the shell assembly is provided with four groups of clamping blocks 215 at the end surface thereof, the clamping blocks 215 move centripetally under the action of the driving plate 212 to fix and clamp the square tube assembled in the placement hole;

[0032] A connecting rod 230 is provided between the first limiting plate 210 and the second limiting plate 220. The housing assembly is rotatably connected to the ring frame 216. The connecting rod 230 is connected between the housing assembly of the first limiting plate 210 and the housing assembly of the second limiting plate 220. When the handle provided on the first limiting plate 210 is rotated, the housing assembly of the second limiting plate 220 will rotate synchronously to change the direction of the processing surface of the square tube.

[0033] A mounting plate 240, the first limiting plate 210 and the second limiting plate 220 are both arranged on the mounting plate 240, and the mounting plate 240 is fixedly mounted on the bottom platform of the grinding device by means of a bolt structure;

[0034] The grinding device in the present application is composed of a prior art equipment mounting seat 100 and a grinding assembly 400, the mounting seat 100 includes a base 110, a lifting seat 120 and a lifting platform 130 and other structures, the lifting platform 130 is provided with a grinding assembly 400, the grinding assembly 400 adopts the prior art grinding wheel technology, the lifting seat 120 is arranged on one side of the base 110, a hydraulic transmission structure is adopted between the lifting seat 120 and the lifting platform 130, and the grinding assembly 400 slides on the lifting platform 130 under the action of the hydraulic device 0, and the height is adjusted under the action of the lifting platform 130. During the grinding process, the first limiting plate 210 and the second limiting plate 220 are actively rotated to form the limiting assembly 200 to complete the turning operation, so that different end faces of the square tube are exposed below the grinding assembly 400. In this application, the structures of the mounting seat 100 and the grinding assembly 400 are all made of existing mature equipment. In addition to the grinding equipment mentioned in this application, the limiting assembly 200 can also be used for other linear grinding equipment; the specific technical principle of the grinding process is not described in detail in this application;

[0035] The limiting assembly 200 forms a double-layer fixing platform through the first limiting plate 210 and the second limiting plate 220, which enhances the stability of the square tube during fixing. When performing a steering operation, the first limiting plate 210 and the second limiting plate 220 rotate synchronously to improve the torsion effect, reduce the difficulty of operation and reduce the workload of the operator;

[0036] As a preferred implementation in this embodiment, the housing assembly includes a back plate 211 and an outer cover 213; an inner ring shell is provided at the center of the back plate 211, and the inner ring shell is connected to the driving disk 212 through a bearing;

[0037] The end surface of the outer cover 213 away from the back plate 211 is provided with four sets of guide slots 2131, and the clamping block 215 slides in the guide slots 2131 and extends into the inner part of the outer cover 213; the end surface of the driving disk 212 away from the back plate 211 is provided with a spiral guide rail, and the spiral guide rail is meshed and connected with the part of the clamping block 215 extending into the outer cover 213;

[0038] In this embodiment, the movement principle of the clamping block 215 and the driving disk 212 is the same as that of the three-jaw chuck structure in the prior art. Here, the number of the clamping blocks 215 is set to four groups to facilitate the clamping and fixing of the square tube on four sides.

[0039] As a preferred implementation in this embodiment, the clamping block 215 includes a guide rail 2151 and a resisting block 2152; the resisting block 2152 is arranged on the guide rail 2151, and a rack structure is arranged on the end surface of the guide rail 2151 away from the resisting block 2152, and the rack structure arranged on the guide rail 2151 is meshed and connected with the driving disk 212;

[0040] The side wall of the guide rail 2151 is provided with an arc groove adapted to the guide groove 2131;

[0041] In this embodiment, the end surface of the guide rail 2151 is a rack structure. Figure 7 As shown, the driving disk 212 is provided with a corresponding spiral guide rail; the spiral guide rail is meshed and connected with the rack structure of the guide rail 2151. When the driving disk 212 rotates, the guide rail 2151 will slide along the guide groove 2131 under the action of the spiral guide rail;

[0042] The side wall of the outer cover 213 is also provided with a driving rod 214, and the driving rod 214 is assembled on the side wall of the outer cover 213 through a bearing. One end of the driving rod 214 is a bevel gear structure and extends to the inside of the outer cover 213. The edge of the driving disk 212 is provided with a bevel gear ring adapted thereto, and the gear ring is meshed and connected with the bevel gear; the rotational force of the driving disk 212 is mainly achieved by the rotation of the driving rod 214. Here, the end of the driving rod 214 facing the outside of the outer cover 213 is provided with a hexagonal screw hole, and the clamping effect can be adjusted with the help of a wrench;

[0043] The abutting block 2152 is also provided with a soft rubber pad 2153, and the abutting block 2152 is in contact with the square tube through the soft rubber pad 2153, so as to reduce the damage to the surface of the other tube caused by the abutment; in the actual processing process, the limiting component 200 is used to fix and support one end of the other tube, and two groups of components with the same structure form a bidirectional support to provide stability during the processing. In order to further improve the stability, a pad 300 can also be placed at the end of the square tube away from the limiting component 200, and the pad 300 can support the limiting component 200 at the end of the square tube away from the other end;

[0044] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0045] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A clamping device for multi-faceted grinding of square tubes, characterized in that: include: A first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate have the same structure, the first limiting plate comprises a ring frame, a shell assembly and a driving plate arranged inside the shell assembly, the shell assembly is rotatably connected to the ring frame through a bearing, a placement hole for accommodating the square tube passing through is arranged at the center of the driving plate and the shell assembly, and a clamping block is arranged on the end surface of the shell assembly, and the clamping block moves centripetally under the action of the driving plate to fix and clamp the square tube assembled in the placement hole; A connecting rod is provided between the first limiting plate and the second limiting plate. When the handle provided on the first limiting plate rotates, the second limiting plate will rotate synchronously to change the direction of the processing surface of the square tube.

2. A clamping device for multi-surface grinding of square tubes as claimed in claim 1, characterized in that: The housing assembly comprises a back plate and an outer cover; an inner ring shell is arranged at the center of the back plate, the inner ring shell is connected to the driving disc via a bearing, and four groups of guide grooves are arranged on the outer cover.

3. A clamping device for multi-surface grinding of square tubes as claimed in claim 2, characterized in that: The clamping device for multi-faceted grinding of square tubes further comprises a mounting plate, and the first limiting plate and the second limiting plate are both arranged on the mounting plate.

4. A clamping device for multi-surface grinding of square tubes as claimed in claim 2, characterized in that: The guide slot is arranged on the end face of the outer cover away from the back plate, and the clamping block slides in the guide slot and extends to the inside of the outer cover.

5. A clamping device for multi-surface grinding of square tubes as claimed in claim 4, characterized in that: A spiral guide rail is provided on the end surface of the driving disc away from the back plate, and the spiral guide rail is meshedly connected with the portion of the clamping block extending into the interior of the outer cover.

6. A clamping device for multi-surface grinding of square tubes as claimed in claim 5, characterized in that: The clamping block comprises a guide rail and a supporting block; the supporting block is arranged on the guide rail, and a rack structure is arranged on the end surface of the guide rail away from the supporting block, and the rack structure arranged on the guide rail is meshedly connected with the driving disk.

7. A clamping device for multi-surface grinding of square tubes as claimed in claim 6, characterized in that: The supporting block is also provided with a soft rubber pad, and the supporting block is in contact and connected with the square tube via the soft rubber pad.

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