Clamping and rotating device

Abstract

The utility model relates to a clamping and rotating device which comprises a welding and positioning jig assembly, the welding and positioning jig assembly comprises a welding and positioning jig plate, and a jig groove used for containing a product is formed in the middle of the welding and positioning jig plate; a pressure rotating shaft assembly is arranged over the welding positioning jig plate, and a clamping rotating assembly is arranged under the welding positioning jig plate. The mechanism is suitable for high-pressure and high-precision rotation working conditions, and parts of the mechanism are high in concentricity and resistant to pressure. The utility model can protect the rotary electrical apparatus element, and simultaneously has the advantages of eliminating the internal stress of the mechanism, being convenient to disassemble and the like.

Description

Technical Field

[0001] The utility model relates to the technical field related to welding of mechanical parts, and relates to a clamping and rotating device, in particular to a high-precision clamping and rotating device under high-pressure working conditions. Background Art

[0002] With the high-quality development of the machinery industry in recent years, the requirements for product quality and precision have become increasingly higher. This has raised the standards for production equipment. During the manufacturing process of a certain automotive part, high-pressure clamping conditions and high-precision welding and sealing are required during the final welding and packaging. It is difficult to ensure high-precision rotation welding under high-pressure conditions with current technology. For the split mechanical structure of the clamping mechanism and the rotating mechanism, the assembly requirements and design requirements to ensure that the rotation center of the clamping device is consistent with the rotation center of the rotating mechanism are very high and difficult to achieve. In addition, in this high-pressure condition, it is easy to damage the electrical components that drive the device to rotate.

[0003] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a clamping and rotating device to make it more valuable for industrial use. Utility Model Content

[0004] In order to solve any of the above technical problems, the purpose of the utility model is to provide a clamping and rotating device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The clamping and rotating device comprises a welding positioning jig assembly, wherein the welding positioning jig assembly comprises a welding positioning jig plate, and a jig groove for placing the product is arranged in the middle of the welding positioning jig plate;

[0007] A pressure shaft assembly is arranged directly above the welding positioning jig plate, and a clamping rotating assembly is arranged directly below the welding positioning jig plate;

[0008] The clamping rotating assembly includes an adapter plate, a rotating motor mechanism, a bearing support plate and a concentric positioning assembly, wherein the bearing support plate is installed on one side of the top of the adapter plate, and the rotating motor mechanism is installed on the adapter plate directly below the bearing support plate;

[0009] The concentric positioning assembly includes a concentric positioning block. The welding positioning fixture plate is installed on the concentric positioning block directly below. A clamping claw cavity is opened in the inner middle part of the concentric positioning block. Two clamping claws are evenly distributed in the clamping claw cavity. The two clamping claws are respectively installed on both sides of the lower clamping claw assembly, and the rotating motor mechanism drives the upper clamping claw assembly to rotate.

[0010] As a further improvement of the utility model, positioning pin holes are opened on both sides of the welding positioning fixture plate, and a positioning pin is arranged on the concentric positioning block directly below the positioning pin hole, and the positioning pin is inserted into the positioning pin sleeve in the positioning pin hole.

[0011] As a further improvement of the utility model, a third bearing is installed between the bearing support plate and the inner concentric positioning block.

[0012] As a further improvement of the utility model, pull rod installation grooves are provided on both sides of the concentric positioning block, an upper pull rod is installed in the pull rod installation groove, and the upper pull rod is connected to a lower pull rod installed on the clamping jaw assembly below through a tension spring.

[0013] As a further improvement of the utility model, the pressure shaft assembly includes a pressure shaft, a pressure plate connecting block and a pressure plate, and the pressure plate is installed at the bottom of the pressure shaft through the pressure plate connecting block.

[0014] As a further improvement of the utility model, the pressure shaft assembly also includes an adjustment plate, a thrust base and a bearing seat. The thrust base is installed on the inner side of the adjustment plate, and a bearing seat is installed on the bottom of the thrust base. The pressure shaft is connected to the inner side of the thrust base through a first bearing, and the pressure shaft is connected to the inner side of the bearing seat through a second bearing.

[0015] As a further improvement of the utility model, a rubber pad is installed between the pressing plate connecting block and the pressing plate.

[0016] By means of the above solution, the utility model has at least the following advantages:

[0017] The utility model is suitable for high-pressure and high-precision rotation working conditions, and the various parts of the mechanism have high concentricity and pressure resistance.

[0018] The utility model can protect rotating electrical components and simultaneously has the advantages of eliminating internal stress of the mechanism and facilitating disassembly.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1It is a structural schematic diagram of a clamping and rotating device of the utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the medium pressure shaft assembly;

[0023] Figure 3 yes Figure 1 The structural diagram of the welding positioning fixture assembly;

[0024] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle clamping rotating assembly;

[0025] Figure 5 yes Figure 4 Schematic diagram of the structure of the concentric positioning component.

[0026] The meanings of the various reference numerals in the figures are as follows.

[0027] Pressure shaft assembly 1, welding positioning fixture assembly 2, clamping and rotating assembly 3;

[0028] Adjusting plate 11, thrust base 12, pressing shaft 13, first bearing 14, bearing seat 15, second bearing 16, pressing plate connecting block 17, rubber pad 18, pressing plate 19;

[0029] Welding positioning jig plate 21, product 22, positioning pin hole 23;

[0030] Adapter plate 31, rotating motor mechanism 32, bearing support plate 33, third bearing 34, concentric positioning assembly 35, clamping claw 36;

[0031] Concentric positioning block 351 , clamping claw cavity 352 , positioning pin 353 , pull rod mounting groove 354 , upper pull rod 355 , tension spring 356 , lower pull rod 357 . DETAILED DESCRIPTION

[0032] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but only represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0034] like Figure 1 to Figure 5 As shown, a clamping and rotating device includes a welding positioning fixture assembly 2, the welding positioning fixture assembly 2 includes a welding positioning fixture plate 21, and a fixture groove for placing a product 22 is arranged in the middle of the welding positioning fixture plate 21. A pressure shaft assembly 1 is arranged directly above the welding positioning fixture plate 21, and a clamping and rotating assembly 3 is arranged directly below the welding positioning fixture plate 21.

[0035] 1. Pressure shaft assembly 1:

[0036] 1. The pressure shaft assembly 1 includes a pressure shaft 13, a pressure plate connecting block 17 and a pressure plate 19. The pressure plate 19 is installed at the bottom of the pressure shaft 13 through the pressure plate connecting block 17, and a rubber pad 18 is installed between the pressure plate connecting block 17 and the pressure plate 19.

[0037] 2. The pressure shaft assembly 1 also includes an adjustment plate 11, a thrust base 12 and a bearing seat 15. The thrust base 12 is installed on the inner side of the adjustment plate 11. The bearing seat 15 is installed at the bottom of the thrust base 12. The pressure shaft 13 is connected to the inner side of the thrust base 12 through a first bearing 14, and the pressure shaft 13 is connected to the inner side of the bearing seat 15 through a second bearing 16.

[0038] 2. Clamping and rotating assembly 3:

[0039] 1. The clamping rotating assembly 3 includes an adapter plate 31, a rotating motor mechanism 32, a bearing support plate 33 and a concentric positioning assembly 35. The bearing support plate 33 is installed on one side of the top of the adapter plate 31, and the rotating motor mechanism 32 is installed on the adapter plate 31 directly below the bearing support plate 33. The rotating motor mechanism 32 is a common servo motor or the like.

[0040] 2. The concentric positioning assembly 35 includes a concentric positioning block 351, and the welding positioning fixture plate 21 is installed on the concentric positioning block 351 directly below. A clamping claw cavity 352 is opened in the inner middle of the concentric positioning block 351. Two clamping claws 36 are evenly distributed in the clamping claw cavity 352. The two clamping claws 36 are respectively installed on both sides of the lower clamping claw assembly, and the rotating motor mechanism 32 drives the upper clamping claw assembly to rotate. The above-mentioned clamping claw assembly is a common clamping claw cylinder, etc.

[0041] 3. Positioning pin holes 23 are provided on both sides of the welding positioning fixture plate 21 , and a positioning pin 353 is provided on the concentric positioning block 351 directly below the positioning pin hole 23 . The positioning pin 353 is inserted into the positioning pin sleeve in the positioning pin hole 23 .

[0042] 4. A third bearing 34 is installed between the bearing support plate 33 and the inner concentric positioning block 351 .

[0043] 5. Pull rod installation grooves 354 are provided on both sides of the concentric positioning block 351 , and an upper pull rod 355 is installed in the pull rod installation groove 354 . The upper pull rod 355 is connected to a lower pull rod 357 installed on the clamping jaw assembly below through a tension spring 356 .

[0044] The utility model aims at a design scheme of high-precision clamping and rotation under high-pressure working conditions, that is, the device can withstand high pressure and rotate with high precision without damaging internal electrical components.

[0045] The pressure shaft assembly 1 is installed on a cylinder drive or other linear motion mechanism. The installation requirement needs to be consistent with the rotation axis of the rotating motor mechanism 32, and can be debugged and installed with a shaft and axle sleeve. Product 22 is a product that requires pressure welding and needs to be placed on the welding positioning fixture plate 21. The fixture groove of the welding positioning fixture plate 21 has a tolerance of +0.02 with the product. The welding positioning fixture plate 21 needs to be assembled with the concentric positioning block 351 below to form a positioning fixture assembly for use. The inner ring of the third bearing 34 is concentric with the concentric positioning block 351 at H7 / g6, and the concentric positioning block 351 is concentric with the rotating motor mechanism 32 at H7 / g6. The bearing support plate 33 supports the third bearing 34, and it is a clearance fit, and the clearance requirement is not large. One end of the tension spring 356 is locked on the clamping jaw assembly with a lower pull rod 357, and the other end is clamped on the concentric positioning block 351 with an upper pull rod 355.

[0046] The working process of the utility model is:

[0047] The product 22 is placed on the welding positioning jig plate 21 and positioned through the positioning pin hole 23 and the positioning pin 353, and the two clamps 36 installed on the clamp assembly of the rotating motor mechanism 32 clamp the product 22. During processing, the two clamps 36 process a part, and then disassemble to ensure the accuracy of the part. The bevel clamping of the clamping surface of the clamp 36 has a regularizing effect, so that the clamping center is concentric with the rotation axis. At this time, it can be considered that the rotation center of the product 22 and the rotating motor mechanism 32 have high accuracy. After that, the pressure shaft assembly 1 descends to apply pressure to the product 22, the product 22 is subjected to pressure, and the rotating motor mechanism 32 starts to work to drive the product 22 to rotate.

[0048] The pressure on the product 22 is transmitted to the bearing support plate 33 through the welding positioning fixture plate 21, the concentric positioning block 351, and the third bearing 34, and fixed by the tension spring 356 to prevent the pressure from being transmitted to the rotating motor mechanism 32 and damaging it. The rigid fixing method will generate stress inside the entire mechanism, which is not conducive to the high-precision rotation of the mechanism. At the same time, it will transmit stress to the rotating motor mechanism 32 and damage the electrical components of the rotating motor mechanism 32. Figure 5 The concentric positioning block 351 is provided with a rod installation groove 354 for installing an upper rod 355. The upper rod 355 is connected to a lower rod 357 installed on the clamping jaw assembly below through a tension spring 356. The upper rod 355 can be easily disassembled, thereby realizing the convenience of assembly and disassembly of the entire mechanism. The high concentricity between the welding positioning jig plate 21, the concentric positioning block 351, the third bearing 34 and the rotating motor mechanism 32 ensures the high precision of the entire mechanism.

[0049] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A clamping and rotating device, comprising a welding positioning jig assembly (2), wherein the welding positioning jig assembly (2) comprises a welding positioning jig plate (21), and a jig groove for placing a product (22) is provided in the middle of the welding positioning jig plate (21); Features: A pressure shaft assembly (1) is arranged directly above the welding positioning jig plate (21), and a clamping rotation assembly (3) is arranged directly below the welding positioning jig plate (21); The clamping rotating assembly (3) comprises an adapter plate (31), a rotating motor mechanism (32), a bearing support plate (33) and a concentric positioning assembly (35); the bearing support plate (33) is installed on one side of the top of the adapter plate (31), and the rotating motor mechanism (32) is installed on the adapter plate (31) directly below the bearing support plate (33); The concentric positioning assembly (35) includes a concentric positioning block (351), the welding positioning fixture plate (21) is installed on the concentric positioning block (351) directly below, a clamping claw cavity (352) is opened in the middle of the inner side of the concentric positioning block (351), two clamping claws (36) are evenly distributed in the clamping claw cavity (352), and the two clamping claws (36) are respectively installed on both sides of the lower clamping claw assembly, and the rotating motor mechanism (32) drives the upper clamping claw assembly to rotate.

2. The clamping and rotating device according to claim 1, characterized in that: Positioning pin holes (23) are provided on both sides of the welding positioning fixture plate (21), and a positioning pin (353) is provided on a concentric positioning block (351) directly below the positioning pin hole (23), and the positioning pin (353) is inserted into a positioning pin sleeve in the positioning pin hole (23).

3. The clamping and rotating device according to claim 1, characterized in that: A third bearing (34) is installed between the bearing support plate (33) and the inner concentric positioning block (351).

4. The clamping and rotating device according to claim 1, characterized in that: Pull rod installation grooves (354) are provided on both sides of the concentric positioning block (351), and an upper pull rod (355) is installed in the pull rod installation groove (354). The upper pull rod (355) is connected to a lower pull rod (357) installed on the clamping jaw assembly below through a tension spring (356).

5. The clamping and rotating device according to claim 1, characterized in that: The pressure shaft assembly (1) comprises a pressure shaft (13), a pressure plate connecting block (17) and a pressure plate (19), wherein the pressure plate (19) is installed at the bottom of the pressure shaft (13) via the pressure plate connecting block (17).

6. The clamping and rotating device according to claim 5, characterized in that: The pressure shaft assembly (1) further comprises an adjustment plate (11), a thrust base (12) and a bearing seat (15); the thrust base (12) is mounted on the inner side of the adjustment plate (11); the bearing seat (15) is mounted on the bottom of the thrust base (12); the pressure shaft (13) is connected to the inner side of the thrust base (12) via a first bearing (14); and the pressure shaft (13) is connected to the inner side of the bearing seat (15) via a second bearing (16).

7. The clamping and rotating device according to claim 5, characterized in that: A rubber pad (18) is installed between the pressure plate connecting block (17) and the pressure plate (19).

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