Positioning and clamping device for mechanical engineering

Abstract

The utility model provides a positioning and clamping device for mechanical engineering, and belongs to the technical field of machine manufacturing. Comprising a fixing box, a first motor installed on the inner wall of the fixing box in a matched mode, a first gear fixedly connected to the output end of the first motor through a coupler, a second gear meshed with the outer surface of the first gear, a connecting rod fixedly installed on the inner surface of the second gear and an installation frame fixedly connected to the penetrating end of the connecting rod. And the fixing block is fixedly mounted on the inner wall of the fixing box and is matched with the connecting rod for use. According to the utility model, through the cooperation of all the components in the positioning mechanism, the workpiece can be controlled to rotate in the vertical or parallel direction while being clamped, and the workpiece can also be controlled to turn over at multiple angles, so that the workpiece is difficult to machine by a cutter at an ideal angle and path; and the device can flexibly adapt to complex and various machining tasks, so that the effect of greatly widening the application range of the clamping device is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical manufacturing technical field, and specifically relates to a positioning and clamping device of mechanical engineering. BACKGROUND

[0002] The positioning and clamping device of mechanical engineering is used in machining and other operations, accurately positions workpieces in a specific position, ensures that workpieces and machining equipment, tools and the like maintain an accurate relative positional relationship, for example, on a numerical control milling machine, the positioning and clamping device can accurately position workpieces, so that tools can be accurately machined according to a preset program, ensuring that the positional accuracy of holes, grooves and the like machined meets design requirements.

[0003] Some positioning and clamping devices of mechanical engineering in the prior art can only adjust and turn over workpieces in a small range during use, and some positioning and clamping devices of mechanical engineering in the prior art can only adjust and turn over workpieces in a small range during use, which may result in difficulty in machining workpieces at an ideal angle and path, and may cause deviation between machined curved surfaces and design requirements, thereby affecting the dimensional accuracy and surface quality of workpieces when machining workpieces with complex and irregular curved surfaces and multi-angle features. SUMMARY

[0004] The utility model aims at providing a positioning and clamping device of mechanical engineering, which aims at solving the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0006] A positioning and clamping device of mechanical engineering, comprising a positioning mechanism, a fixed box, a first motor adaptedly installed on the inner wall of the fixed box, a first gear fixedly connected to the output end of the first motor through a shaft coupling, a second gear meshing with the outer surface of the first gear, a connecting rod fixedly installed on the inner surface of the second gear, a mounting bracket fixedly connected to the penetrating end of the connecting rod, and a fixed block fixedly installed on the inner wall of the fixed box and cooperating with the connecting rod.

[0007] As a preferred scheme of the utility model, the outer surface of the connecting rod is in rotational contact with the inner surface of the fixed block, and a bearing sleeve cooperating with rotation is installed at the connection between the connecting rod and the fixed box.

[0008] As a preferred scheme of the utility model, the positioning mechanism further comprises a clamping assembly arranged on the inner side of the mounting bracket for clamping workpieces, and a turning assembly arranged below the fixed box for controlling the fixed box to perform multi-angle adjustment.

[0009] As a preferred scheme of the utility model, the clamping assembly includes the second motor that is adapted to be installed on the inner wall of the fixed box, the worm that is fixedly connected to the output end of the second motor through the shaft coupling, the worm wheel that is engaged with the outer surface of the worm, the support column that is fixedly installed on the inner surface of the worm wheel, the third gear that is fixedly sleeved on the outer surface of the support column, and the hollow tooth column that is engaged with the outer surface of the third gear.

[0010] As a preferred scheme of the utility model, the clamping assembly further includes the fourth gear that is engaged with the side surface of the hollow tooth column away from the third gear, the bidirectional stud that is fixedly installed on the inner surface of the fourth gear, the internal thread block that is respectively threadedly connected to the two side surfaces of the bidirectional stud, the transmission rod that is fixedly connected to the outer surface of the internal thread block, the clamping block that is fixedly connected to the penetrating end of the transmission rod, and the support block and the fixed rod that are respectively fixedly connected to the two side inner walls of the fixed box and are respectively matched with the worm and the support column.

[0011] As a preferred scheme of the utility model, the turnover assembly includes the bottom plate that is arranged directly below the fixed box, the third motor that is adapted to be installed on the outer surface of the bottom plate, the connecting column that is fixedly connected to the output end of the third motor through the shaft coupling, the sleeve that is fixedly installed on the other end of the connecting column, the rotating rod that is rotatably connected to the inner surface of the sleeve, and the shape plate that is fixedly installed on the outer end surface of the rotating rod and is matched with the fixed box.

[0012] As a preferred scheme of the utility model, the turnover assembly further includes the air cylinder that is respectively adapted to be installed on the two side surfaces of the bottom plate, the circular guide rail that is fixedly connected to the output end of the air cylinder, the ball that is movably connected to the inner wall of the circular guide rail, the shape rod that is fixedly connected to the outer surface of the ball and is matched with the rotating rod.

[0013] As a preferred scheme of the utility model, the inner surface of the hollow tooth column is in sliding contact with the outer surface of the connecting rod, the outer end surface of the hollow tooth column is fixedly installed on the inner wall of the mounting frame through the bearing, the outer surface of the transmission rod is in sliding contact with the inner surface of the mounting frame, the outer surface of the worm is in rotating contact with the inner surface of the support block, and the outer surface of the support column is in rotating contact with the inner surface of the fixed rod.

[0014] The fixed box is fixedly installed on the top of the shape plate, and the outer end surface of the shape rod is fixedly connected with the outer surface of the rotating rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are that: through the cooperation between the parts in the positioning mechanism, the workpiece can be clamped and controlled to rotate in the vertical or parallel direction, and the workpiece can also be controlled to overturn at multiple angles, so that the cutter can process the workpiece at the ideal angle and path, the device can flexibly adapt to complex and diverse processing tasks, and the effect that the application range of the clamping device is greatly increased is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without the creative labor of the person skilled in the art. Among them:

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram inside the fixed box in the utility model;

[0019] Figure 3 It is the overall structure schematic diagram of the utility model Figure 2 It is the structure enlarged schematic diagram of the local part A in the utility model;

[0020] Figure 4 It is the structure enlarged schematic diagram of the local part B in the utility model; Figure 2

[0021] Figure 5 It is the structure schematic diagram of the overall turnover assembly in the utility model.

[0022] In the drawing: 100, positioning mechanism; 101, fixed box; 102, first motor; 103, first gear; 104, second gear; 105, connecting rod; 106, mounting frame; 107, fixed block; 108, clamping assembly; 108a, second motor; 108b, worm; 108c, worm wheel; 108d, support column; 108e, third gear; 108f, hollow tooth column; 108g, fourth gear; 108h, two-way stud; 108i, internally threaded block; 108j, transmission rod; 108k, clamping block; 108l, support block; 108m, fixed rod; 109, turnover assembly; 109a, bottom plate; 109b, third motor; 109c, connecting column; 109d, sleeve; 109e, rotating rod; 109f, L-shaped plate; 109g, air cylinder; 109h, circular guide rail; 109i, ball; 109k, L-shaped rod. DETAILED DESCRIPTION

[0023] ​In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0026] Embodiment

[0027] Reference Figures 1-5 For the embodiments of the present application, the embodiments provide a positioning and clamping device for mechanical engineering, comprising,

[0028] The positioning mechanism 100 comprises a fixed box 101, a first motor 102 adaptedly installed on the inner wall of the fixed box 101, a first gear 103 fixedly connected to the output end of the first motor 102 through a shaft coupling, a second gear 104 meshed with the outer surface of the first gear 103, a connecting rod 105 fixedly installed on the inner surface of the second gear 104, a mounting bracket 106 fixedly connected to the through end of the connecting rod 105, and a fixed block 107 fixedly installed on the inner wall of the fixed box 101 and used in cooperation with the connecting rod 105.

[0029] It should be noted that the fixed box 101 is the main frame of the device, which is used to provide a mounting base for other internal components, the first motor 102 is used to drive the first gear 103, the second gear 104 and the connecting rod 105 to rotate synchronously, so that the connecting rod 105 drives the mounting bracket 106 to rotate, the mounting bracket 106 is used to install the clamping assembly 108 and rotates with the connecting rod 105 to adjust the angular position of the workpiece, and the fixed block 107 is used to support the connecting rod 105.

[0030] Specifically, the outer surface of the connecting rod 105 is in rotating contact with the inner surface of the fixed block 107, and a bearing sleeve for cooperation with rotation is installed at the connection between the connecting rod 105 and the fixed box 101.

[0031] Further, the positioning mechanism 100 further comprises a clamping assembly 108 arranged on the inner side of the mounting bracket 106 for clamping the workpiece, and a turnover assembly 109 arranged below the fixed box 101 for controlling the fixed box 101 to perform multi-angle adjustment.

[0032] Preferably, the clamping assembly 108 comprises a second motor 108a which is adapted to be mounted on the inner wall of the fixed box 101, a worm 108b which is fixedly connected to the output end of the second motor 108a through a shaft coupling, a worm wheel 108c which is engaged with the outer surface of the worm 108b, a support column 108d which is fixedly mounted on the inner surface of the worm wheel 108c, a third gear 108e which is fixedly sleeved on the outer surface of the support column 108d, and a hollow toothed column 108f which is engaged with the outer surface of the third gear 108e.

[0033] It should be noted that the clamping assembly 108 further comprises a fourth gear 108g which is engaged with the surface of the hollow toothed column 108f away from the third gear 108e, a bidirectional screw column 108h which is fixedly mounted on the inner surface of the fourth gear 108g, two inner threaded blocks 108i which are respectively threadedly connected to the two side surfaces of the bidirectional screw column 108h, a transmission rod 108j which is fixedly connected to the outer surface of the inner threaded blocks 108i, a clamping block 108k which is fixedly connected to the penetrating end of the transmission rod 108j, and a support block 108l and a fixed rod 108m which are respectively fixedly connected to the inner walls of the two sides of the fixed box 101 and are respectively matched with the worm 108b and the support column 108d for use.

[0034] It should be noted that the second motor 108a is used to provide power for the clamping action, the worm 108b and the worm wheel 108c are used to transmit the rotating power of the second motor 108a to the support column 108d, so as to realize the functions of speed reduction and self-locking, drive the third gear 108e to rotate, drive synchronous rotation through the cooperation of the third gear 108e and the hollow toothed column 108f, drive the two groups of inner threaded blocks 108i, the transmission rod 108j and the clamping block 108k to move towards each other along the inner wall of the mounting frame 106 through the cooperation of the fourth gear 108g and the bidirectional screw column 108h, so as to clamp the workpiece, and at this time, the first motor 102 is controlled to drive the mounting frame 106 to rotate, so as to drive the workpiece to adjust the vertical rotation angle.

[0035] Among them, the clamping block 108k is made of polyurethane material with high elasticity and flexibility, its surface is soft and has good elasticity, and it can be self-adapted to the shape of the workpiece to ensure that the workpiece is stably clamped while greatly reducing the wear on the surface of the workpiece.

[0036] Further, the turnover assembly 109 comprises a bottom plate 109a which is arranged below the fixed box 101, a third motor 109b which is adapted to be mounted on the outer surface of the bottom plate 109a, a connecting column 109c which is fixedly connected to the output end of the third motor 109b through a shaft coupling, a sleeve 109d which is fixedly mounted on the other end of the connecting column 109c, a rotating rod 109e which is rotatably connected to the inner surface of the sleeve 109d, and an L-shaped plate 109f which is fixedly mounted on the outer end surface of the rotating rod 109e and is matched with the fixed box 101 for use.

[0037] It should be noted that the bottom plate 109a is the basic support component of the turnover assembly 109, and the third motor 109b is used to drive the connecting column 109c and the sleeve 109d to rotate, so that the sleeve 109d drives the rotating rod 109e, the L-shaped plate 109f and the fixed box 101 to rotate synchronously, thereby achieving the effect of controlling the parallel rotation angle adjustment of the workpiece.

[0038] Specifically, the turnover assembly 109 further comprises a pneumatic cylinder 109g and a circular guide rail 109h fixedly connected to the output end of the pneumatic cylinder 109g, and a ball 109i movably connected to the inner wall of the circular guide rail 109h.

[0039] When the pneumatic cylinder 109g drives the circular guide rail 109h to move vertically, the ball 109i moves in the circular guide rail 109h, drives the L-shaped rod 109k to swing around the rotating rod 109e as the center, and drives the rotating rod 109e to rotate, and then the rotating rod 109e, the L-shaped plate 109f and the fixed box 101 are inclined, thereby achieving the effect of controlling the multi-angle turnover of the workpiece.

[0040] Preferably, the inner surface of the hollow tooth column 108f is in sliding contact with the outer surface of the connecting rod 105, the outer end surface of the hollow tooth column 108f is fixedly installed on the inner wall of the mounting frame 106 through a bearing, the outer surface of the transmission rod 108j is in sliding contact with the inner surface of the mounting frame 106, the outer surface of the worm 108b is in rotating contact with the inner surface of the supporting block 108l, and the outer surface of the supporting column 108d is in rotating contact with the inner surface of the fixed rod 108m.

[0041] The fixed box 101 is fixedly installed on the top of the L-shaped plate 109f, and the outer end surface of the L-shaped rod 109k is fixedly connected with the outer surface of the rotating rod 109e.

[0042] The L-shaped rod 109k always has a certain inclination angle and cannot be swung to a position perpendicular to the bottom plate 109a, thereby preventing the circular guide rail 109h and the ball 109i from being stuck, ensuring that the ball 109i can slide smoothly, the pneumatic cylinder 109g is an optical precision machine pneumatic cylinder which integrates optical measurement and precision control technology inside and is provided with an optical sensing system inside, can monitor the extension displacement of the output end at the level of nanometer, can real-time feedback the running state, can dynamically adjust the output force according to the set parameters, and can maintain excellent stability and precision in various operations.

[0043] In use, the device is placed in a suitable working position, and then the workpiece is placed between the two sets of clamping blocks 108k, and then the second motor 108a is started to drive the worm 108b to rotate synchronously, the worm 108b drives the worm gear 108c to rotate, and the worm gear 108c drives the support column 108d and the third gear 108e to rotate synchronously, and the third gear 108e drives the fourth gear 108g

[0044] and the bidirectional stud 108h to rotate, so that the inner threaded blocks 108i on both sides of the bidirectional stud 108h and the transmission rod 108j drive the clamping blocks 108k to move linearly along the inner wall of the mounting frame 106, thereby clamping the workpiece;

[0045] The vertical rotation angle of the workpiece is adjusted by starting the first motor 102 to drive the first gear 103 to rotate synchronously, and the first gear 103 drives the connecting rod 105, the mounting frame 106, and the clamped workpiece to rotate vertically through the cooperation of the first gear 103 and the second gear 104.

[0046] The parallel rotation angle of the workpiece is adjusted by starting the third motor 109b to drive the connecting column 109c and the sleeve 109d to rotate synchronously, and the sleeve 109d drives the rotating rod 109e, the L-shaped plate 109f, and the fixed box 101 to rotate synchronously to achieve the effect of controlling the parallel rotation angle of the workpiece.

[0047] When the workpiece is flipped, the cylinder 109g is started to drive the circular guide rail 109h to move vertically, so that the ball 109i moves in the circular guide rail 109h, and the L-shaped rod 109k swings around the rotating rod 109e and rotates, and then the rotating rod 109e drives the L-shaped plate 109f and the fixed box 101 to tilt, and the extension distance of the output end of the cylinder 109g is used to achieve the effect of controlling the workpiece to flip at multiple angles.

[0048] In summary, through the cooperation between the components in the positioning mechanism 100, the workpiece can be clamped while being controlled to rotate vertically or parallelly, and the workpiece can also be controlled to flip at a large angle, which makes the device flexible and adaptable to complex and diverse machining tasks, thereby greatly increasing the application range of the clamping device.

[0049] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0050] Also, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the best mode of practicing the present inventive subject matter, or those unrelated to enabling the claimed application).

[0051] It should be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill in the art having the benefit of this disclosure.

[0052] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A positioning and clamping device for mechanical engineering, characterized by: Including, The positioning mechanism (100) comprises a fixed box (101), a first motor (102) adapted to be mounted on the inner wall of the fixed box (101), a first gear (103) fixedly connected to the output end of the first motor (102) through a shaft coupling, a second gear (104) meshed with the outer surface of the first gear (103), a connecting rod (105) fixedly mounted on the inner surface of the second gear (104), a mounting bracket (106) fixedly connected to the through end of the connecting rod (105), and a fixed block (107) fixedly mounted on the inner wall of the fixed box (101) and matched with the connecting rod (105).

2. A positioning and clamping device for mechanical engineering according to claim 1, characterized in that The outer surface of the connecting rod (105) is in rotating contact with the inner surface of the fixed block (107), and a bearing sleeve matched with rotation is mounted at the connection between the connecting rod (105) and the fixed box (101).

3. A positioning and clamping device for mechanical engineering according to claim 2, characterized in that The positioning mechanism (100) further comprises a clamping assembly (108) arranged on the inner side of the mounting bracket (106) for clamping workpieces, and a turnover assembly (109) arranged below the fixed box (101) for controlling the fixed box (101) to perform multi-angle adjustment.

4. A positioning and clamping device for mechanical engineering according to claim 3, characterized in that The clamping assembly (108) comprises a second motor (108a) adapted to be mounted on the inner wall of the fixed box (101), a worm (108b) fixedly connected to the output end of the second motor (108a) through a shaft coupling, a worm gear (108c) meshed with the outer surface of the worm (108b), a support column (108d) fixedly mounted on the inner surface of the worm gear (108c), a third gear (108e) fixedly sleeved on the outer surface of the support column (108d), and a hollow tooth column (108f) meshed with the outer surface of the third gear (108e).

5. A positioning and clamping device for mechanical engineering according to claim 4, characterized in that The clamping assembly (108) further comprises a fourth gear (108g) meshed with the side surface of the hollow tooth column (108f) away from the third gear (108e), a bidirectional screw post (108h) fixedly mounted on the inner surface of the fourth gear (108g), inner threaded blocks (108i) respectively threadedly connected to the two side surfaces of the bidirectional screw post (108h), a transmission rod (108j) fixedly connected to the outer surface of the inner threaded block (108i), a clamping block (108k) fixedly connected to the through end of the transmission rod (108j), and support blocks (108l) and fixed rods (108m) respectively fixedly connected to the inner walls of the two sides of the fixed box (101) and respectively matched with the worm (108b) and the support column (108d).

6. A positioning and clamping device for mechanical engineering according to claim 5, characterized in that The turnover assembly (109) comprises a bottom plate (109a) arranged right below the fixed box (101), a third motor (109b) adapted to be mounted on the outer surface of the bottom plate (109a), a connecting column (109c) fixedly connected to the output end of the third motor (109b) through a shaft coupling, a sleeve (109d) fixedly mounted on the other end of the connecting column (109c), a rotating rod (109e) rotatably connected to the inner surface of the sleeve (109d), and an L-shaped plate (109f) fixedly mounted on the outer end surface of the rotating rod (109e) and matched with the fixed box (101).

7. A positioning and clamping device for mechanical engineering according to claim 6, characterized in that The turnover assembly (109) further comprises air cylinders (109g) adapted to be mounted on the two side surfaces of the bottom plate (109a) respectively, a circular guide rail (109h) fixedly connected to the output end of the air cylinder (109g), a ball (109i) movably connected to the inner wall of the circular guide rail (109h), and an L-shaped rod (109k) fixedly connected to the outer surface of the ball (109i) and matched with the rotating rod (109e).

8. A positioning and clamping device for mechanical engineering according to claim 7, characterized in that The inner surface of the hollow tooth column (108f) is in sliding contact with the outer surface of the connecting rod (105), the outer end surface of the hollow tooth column (108f) is fixedly mounted on the inner wall of the mounting frame (106) through a bearing, the outer surface of the transmission rod (108j) is in sliding contact with the inner surface of the mounting frame (106), the outer surface of the worm (108b) is in rotating contact with the inner surface of the support block (108l), and the outer surface of the support column (108d) is in rotating contact with the inner surface of the fixed rod (108m); The fixed box (101) is fixedly mounted on the top of the L-shaped plate (109f), and the outer end surface of the L-shaped rod (109k) is fixedly connected with the outer surface of the rotating rod (109e).

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