Clamping device and using method thereof

Abstract

The invention relates to the technical field of mechanical clamping tools, in particular to a clamping device and a using method thereof. The clamping device comprises a driving mechanism, at least two clamping mechanisms, at least two transmission mechanisms and a moving mechanism. The driving mechanism can output linear motion in the first direction. The at least two clamping mechanisms are arranged at intervals in the second direction, the transmission mechanisms and the clamping mechanisms are arranged in a one-to-one correspondence mode, the clamping mechanisms are connected with the driving mechanism through the transmission mechanisms, and the transmission mechanisms are configured to convert linear motion of the driving mechanism into rotation so that the clamping mechanisms can clamp or loosen a workpiece; the moving mechanism is configured to drive the clamping mechanism to move in the second direction. According to the clamping device, the multiple clamping mechanisms are arranged, clamping of the multiple workpieces is achieved, meanwhile, each clamping mechanism can move in the second direction, so that the clamping device can have multiple clamping modes, use of the clamping device is facilitated, and the work efficiency of the clamping device for clamping the workpieces is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical clamping tooling, and in particular to a clamping device and a use method thereof. Background Art

[0002] A clamping device is installed above various mechanical machine tools. A clamping device refers to a device used to clamp and fix a workpiece to fix its position or perform cutting and other mechanical processing operations on the workpiece. Clamping devices are widely used in manufacturing industries, such as automobiles, molds, machinery, aerospace and other industries. They play a vital role in the high-precision, efficient and high-quality tool processing process.

[0003] However, the existing clamping device can only clamp a single workpiece and has only a single clamping method when in use, resulting in low efficiency in clamping the workpiece.

[0004] Therefore, there is an urgent need for a clamping device and a method of using the same to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a clamping device and a method for using the same, so that multiple clamping mechanisms are set up to clamp multiple workpieces. At the same time, each clamping mechanism can move along a second direction so that the clamping device can have multiple clamping methods, which facilitates the use of the clamping device and improves the work efficiency of clamping workpieces.

[0006] In order to achieve the above objectives, the following technical solutions are provided:

[0007] The clamping device comprises:

[0008] a driving mechanism capable of outputting a linear motion along a first direction;

[0009] At least two clamping mechanisms, wherein at least two of the clamping mechanisms are arranged at intervals along the second direction;

[0010] At least two transmission mechanisms, the transmission mechanisms and the clamping mechanisms are arranged one by one, the clamping mechanisms are connected to the driving mechanism through the transmission mechanisms, and the transmission mechanisms are configured to convert the linear motion of the driving mechanism into rotation so that the clamping mechanisms clamp or release the workpiece;

[0011] The moving mechanism is configured to drive the clamping mechanism to move along the second direction.

[0012] As an optional solution, the clamping mechanism includes two clamping arms, and the transmission mechanism includes:

[0013] Mounting parts;

[0014] A connecting rod, movably connected to the mounting member;

[0015] a rack extending along the first direction and disposed on the connecting rod;

[0016] A gear is rotatably connected to the mounting member and meshed with the rack, and at least one of the clamping arms is fixed to the gear.

[0017] As an optional solution, the transmission mechanism further includes:

[0018] The guide member is arranged on the mounting member, and a guide hole extending along the first direction is formed on the guide member, and the connecting rod is inserted into the guide hole and slides along the guide hole.

[0019] As an optional solution, the clamping mechanism further includes:

[0020] An anti-slip protrusion is arranged on the inner side of at least one of the clamp arms.

[0021] As an optional solution, the clamping mechanism further includes:

[0022] A flexible member is arranged on the inner side of at least one of the clamping arms.

[0023] As an optional solution, the clamping mechanism further includes:

[0024] An airbag, the airbag being arranged between the flexible member and the clamping arm;

[0025] An air pump is connected to the airbag and is configured to fill the airbag with gas.

[0026] As an optional solution, the clamping mechanism further includes:

[0027] The air pump has an air inlet, and the filter element is connected to the air inlet.

[0028] As an optional solution, the clamping device further includes a mounting seat, and the moving mechanism includes:

[0029] a mounting block, the transmission mechanism being arranged on the mounting block;

[0030] A lead screw, threadedly connected to the mounting block, the lead screw extending along the second direction and rotatably connected to the mounting seat;

[0031] A guide block is arranged on the transmission mechanism, the mounting seat is provided with a guide groove along the second direction, the guide block is inserted into the guide groove and can slide along the guide groove; and

[0032] The driving member is configured to drive the lead screw to rotate.

[0033] The method for using the clamping device is completed using the above-mentioned clamping device, comprising the following steps:

[0034] The driving mechanism drives at least two transmission mechanisms to move along a first direction;

[0035] The transmission mechanism converts the linear motion of the driving mechanism along the first direction into rotation, so that the clamping mechanism clamps or releases the workpiece;

[0036] The moving mechanism drives the clamping mechanism to move along the second direction.

[0037] As an optional solution, after the clamping mechanism clamps the workpiece, an air pump fills the airbag with gas.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The clamping device provided by the present invention has a driving mechanism capable of driving at least two clamping mechanisms to clamp a workpiece, and a moving mechanism capable of driving the clamping mechanism to move along a second direction to achieve clamping of multiple workpieces. At the same time, each clamping mechanism can move along the second direction, so that the clamping device can have a variety of clamping methods, which facilitates the use of the clamping device and improves the working efficiency of the clamping device in clamping the workpiece.

[0040] The method for using the clamping device provided by the present invention is completed using the above-mentioned clamping device to achieve clamping of multiple workpieces. At the same time, each clamping mechanism can move along the second direction so that the clamping device can have a variety of clamping methods, which facilitates the use of the clamping device and improves the working efficiency of the clamping device in clamping workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0042] Figure 1 A schematic diagram of the structure of a clamping device provided in an embodiment of the present invention;

[0043] Figure 2 A schematic diagram of the structure of a transmission mechanism and a clamping mechanism provided in an embodiment of the present invention;

[0044] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0045] Figure 4 for Figure 1A partial enlarged view of point B in the middle;

[0046] Figure 5 A schematic diagram of the structure of a clamping arm, an airbag and a flexible pad provided in an embodiment of the present invention;

[0047] Figure 6 for Figure 1 A partial enlarged view of point C in the middle.

[0048] Reference numerals:

[0049] 100. Clamping device;

[0050] 10. Mounting seat; 11. Guide groove;

[0051] 20. Driving mechanism;

[0052] 30. Transmission mechanism; 31. Mounting member; 311. Avoidance groove; 32. Connecting rod; 321. Limiting part; 33. Rack; 34. Gear; 35. Guide member; 351. Guide hole; 36. Connecting member; 361. Slide groove;

[0053] 40. Clamping mechanism; 41. Clamping arm; 411. Accommodating groove; 42. Anti-slip protrusion; 43. Flexible member; 44. Air bag; 441. Main body; 442. Air blowing pipe; 443. Pressure relief valve; 46. Air pump; 47. Filter element; 48. Air injection pipe;

[0054] 50. Moving mechanism; 51. Mounting block; 52. Lead screw; 53. Guide block; 54. Driving member. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0056] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply 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 application.

[0057] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0059] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0061] like Figure 1-Figure 4 As shown, this embodiment provides a clamping device 100, which includes a driving mechanism 20, at least two clamping mechanisms 40, at least two transmission mechanisms 30 and a moving mechanism 50. The driving mechanism 20 can output a linear motion along a first direction; at least two clamping mechanisms 40 are arranged at intervals along a second direction, and the transmission mechanisms 30 and the clamping mechanisms 40 are arranged one by one. The clamping mechanism 40 is connected to the driving mechanism 20 through the transmission mechanism 30. The transmission mechanism 30 is configured to convert the linear motion of the driving mechanism 20 into rotation, so that the clamping mechanism 40 clamps or releases the workpiece; the moving mechanism 50 is configured to drive the clamping mechanism 40 to move along the second direction. By setting a plurality of clamping mechanisms 40, clamping of a plurality of workpieces is achieved, and at the same time, each clamping mechanism 40 can move along the second direction, so that the clamping device 100 can have a variety of clamping methods, which facilitates the use of the clamping device 100 and improves the working efficiency of the clamping device 100 in clamping workpieces.

[0062] like Figure 1 As shown, in this embodiment, the number of the clamping mechanisms 40 is two, and the two clamping mechanisms 40 realize double-station clamping of the workpiece to improve the clamping efficiency of the workpiece. In other embodiments, the number of the clamping mechanisms 40 can also be three, four or more.

[0063] like Figure 1 As shown, the clamping device 100 also includes a mounting seat 10, and the driving mechanism 20, the clamping mechanism 40, the transmission mechanism 30 and the moving mechanism 50 are all arranged on the mounting seat 10, and the mounting seat 10 realizes the bearing function of the above devices.

[0064] Optionally, the clamping mechanism 40 includes two clamping arms 41, the transmission mechanism 30 includes a mounting member 31, a connecting rod 32, a rack 33 and a gear 34, the mounting member 31 is arranged on the mounting seat 10, the connecting rod 32 is movably connected to the mounting member 31, the rack 33 extends along the first direction and is arranged on the connecting rod 32, the gear 34 is rotatably connected to the mounting member 31 and meshes with the rack 33, at least one clamping arm 41 is fixed to the gear 34, the connecting rod 32 is connected to the output end of the driving mechanism 20, the driving mechanism 20 drives the connecting rod 32 to move along the first direction, so that the rack 33 drives the rotation, so that the clamping arms 41 on the gear 34 are close to or away from each other, so as to clamp or release the workpiece. In this embodiment, the driving mechanism 20 is a cylinder. In other embodiments, the driving mechanism 20 can also be a cylinder, an electric push rod or a linear motor.

[0065] In this embodiment, there are two gears 34, and the gears 34 are arranged in a one-to-one correspondence with the clamping arms 41. Correspondingly, there are two racks 33, and the two racks 33 are arranged on both sides of the connecting rod 32 along the first direction, so that the angle between the two clamping arms 41 can be opened larger, thereby being able to clamp larger workpieces, thereby improving the applicability of the clamping device 100.

[0066] Optionally, the transmission mechanism 30 further includes a guide member 35 , which is disposed on the mounting member 31 , and has a guide hole 351 extending along a first direction, and the connecting rod 32 is inserted into the guide hole 351 and slides along the guide hole 351 to guide the connecting rod 32 .

[0067] Combination Figure 1 , Figure 3 and Figure 4 The specific structure of the moving mechanism 50 is described as follows. Figure 1 , Figure 3 and Figure 4As shown, the moving mechanism 50 includes a mounting block 51, a lead screw 52, ​​a guide block 53 and a driving member 54. The driving member 54 is arranged on the mounting seat 10. The lead screw 52 is threadedly connected to the mounting block 51. The lead screw 52 extends along the second direction and is rotatably connected to the mounting seat 10. The lead screw 52 is connected to the output end of the driving member 54. The driving member 54 can drive the lead screw 52 to rotate. The mounting block 51 is fixed to the guide member 35. The mounting seat 10 is provided with a guide groove 11 along the second direction. The guide block 53 is fixed to the mounting member 31. The guide block 53 is inserted in the guide groove 11 and can slide along the guide groove 11. When working, the driving member 54 drives the lead screw 52 to rotate. Under the guiding action of the guide block 53 sliding along the guide groove 11, the lead screw 52 drives the mounting block 51 to reciprocate along the second direction to move the position of the clamping mechanism 40, so that the clamping device 100 has a variety of clamping modes, which facilitates the use of the clamping device 100. In this embodiment, the driving member 54 is a dual-axis motor, and the driving member 54 can drive one of the lead screws 52 to move independently, so that one of the clamping mechanisms 40 moves independently; it can also drive two lead screws 52 to move simultaneously, so as to drive two clamping mechanisms 40 to move simultaneously. In other embodiments, the number of driving members 54 can be multiple, and the driving members 54 and the lead screws 52 are arranged one by one. The relative driving members 54 can be opened or closed according to actual needs to control the movement of the corresponding clamping mechanism 40.

[0068] Optionally, the transmission mechanism 30 also includes a connecting member 36, which is connected to the output end of the driving mechanism 20. A sliding groove 361 extending along the second direction is provided on the connecting member 36. The connecting rod 32 is inserted into the sliding groove 361 and slides along the sliding groove 361. When the driving member 54 drives the clamping mechanism 40 to move along the second direction, the transmission mechanism 30 moves along the second direction with the clamping mechanism 40. At this time, the connecting rod 32 slides in the sliding groove 361.

[0069] Optionally, a limiting portion 321 is provided at one end of the connecting rod 32 away from the rack 33 . The limiting portions 321 are located on both sides of the connecting member 36 along the first direction. The limiting portions 321 prevent the connecting rod 32 from being separated from the connecting member 36 .

[0070] Alternatively, if Figure 1 and Figure 2 As shown, the clamping mechanism 40 further includes an anti-slip protrusion 42 , which is disposed on the inner side of at least one clamping arm 41 , and is beneficial for the clamping arm 41 to clamp the workpiece.

[0071] Optionally, the clamping mechanism 40 further includes a flexible member 43 , which is disposed on the inner side of at least one clamping arm 41 to prevent the clamping arm 41 from directly contacting the workpiece and causing damage to the workpiece.

[0072] Alternatively, if Figure 3 , Figure 5 and Figure 6 As shown, the clamping mechanism 40 also includes an airbag 44 and an air pump 46. The clamping arm 41 is provided with a receiving groove 411. The airbag 44 is arranged between the flexible member 43 and the clamping arm 41 and is located in the receiving groove 411. The air pump 46 is connected to the airbag 44. The air pump 46 is configured to fill gas into the airbag 44. The airbag 44 expands in the receiving groove 411 to squeeze the flexible member 43 so that the flexible member 43 fits and covers the periphery of the workpiece, so that the clamping arm 41 can clamp workpieces of different shapes and styles.

[0073] Optionally, the clamping mechanism 40 further includes a filter element 47, the air pump 46 has an air inlet, and the filter element 47 is connected to the air inlet. The clamping mechanism 40 further includes an air injection pipe 48, the air pump 46 has an air outlet, one end of the air injection pipe 48 is connected to the air outlet, and the other end is connected to the air bag 44. The air entering the air pump 46 is filtered by the filter element 47 to prevent impurities in the air from damaging or clogging the air pump 46 and the air injection pipe 48.

[0074] Specifically, the airbag 44 includes a main body 441, an air blowing pipe 442 and a pressure relief valve 443. The air blowing pipe 442 is connected to the main body 441. The pressure relief valve 443 is arranged on the air blowing pipe 442 to control the on and off of the air blowing pipe 442 to prevent the main body 441 from being damaged due to overfilling of gas in the main body 441.

[0075] This embodiment also provides a method for using the clamping device, which is completed using the above-mentioned clamping device 100 and includes the following steps:

[0076] The driving mechanism 20 drives at least two transmission mechanisms 30 to move along a first direction;

[0077] The transmission mechanism 30 converts the linear motion of the driving mechanism 20 along the first direction into rotation, so that the clamping mechanism 40 clamps or releases the workpiece;

[0078] The moving mechanism 50 drives the clamping mechanism 40 to move along the second direction.

[0079] Through the above method, multiple workpieces can be clamped, and each clamping mechanism 40 can move along the second direction, so that the clamping device 100 can have multiple clamping modes, which facilitates the use of the clamping device 100 and improves the working efficiency of the clamping device 100 in clamping workpieces.

[0080] Optionally, after the two clamping arms 41 clamp the workpiece, the air pump 46 fills the airbag 44 with gas, so that the airbag 44 fits and covers the periphery of the workpiece, thereby enabling the clamping arms 41 to clamp workpieces of different shapes and styles.

[0081] Note that in the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clamping device, characterized in that: include: A driving mechanism (20), wherein the driving mechanism (20) is capable of outputting a linear motion along a first direction; At least two clamping mechanisms (40), wherein at least two of the clamping mechanisms (40) are arranged at intervals along the second direction; at least two transmission mechanisms (30), the transmission mechanisms (30) and the clamping mechanisms (40) being arranged in one-to-one correspondence, the clamping mechanisms (40) being connected to the driving mechanism (20) via the transmission mechanisms (30), the transmission mechanisms (30) being configured to convert the linear motion of the driving mechanism (20) into rotation, so that the clamping mechanisms (40) clamp or release the workpiece; The moving mechanism (50) is configured to drive the clamping mechanism (40) to move along the second direction.

2. The clamping device according to claim 1, characterized in that: The clamping mechanism (40) comprises two clamping arms (41), and the transmission mechanism (30) comprises: Mounting member (31); A connecting rod (32) movably connected to the mounting member (31); a rack (33), the rack (33) extending along the first direction and arranged on the connecting rod (32); A gear (34) is rotatably connected to the mounting member (31) and meshes with the rack (33); at least one of the clamping arms (41) is fixed to the gear (34).

3. The clamping device according to claim 2, characterized in that: The transmission mechanism (30) further comprises: A guide member (35) is arranged on the mounting member (31); a guide hole (351) extending along the first direction is provided on the guide member (35); the connecting rod (32) is inserted into the guide hole (351) and slides along the guide hole (351).

4. The clamping device according to claim 2, characterized in that: The clamping mechanism (40) further comprises: An anti-slip protrusion (42) is arranged on the inner side of at least one of the clamp arms (41).

5. The clamping device according to claim 2, characterized in that: The clamping mechanism (40) further comprises: A flexible member (43), wherein the flexible member (43) is arranged on the inner side of at least one of the clamping arms (41).

6. The clamping device according to claim 5, characterized in that: The clamping mechanism (40) further comprises: an airbag (44), wherein the airbag (44) is arranged between the flexible member (43) and the clamping arm (41); An air pump (46) is connected to the air bag (44), and the air pump (46) is configured to fill the air bag (44) with gas.

7. The clamping device according to claim 6, characterized in that: The clamping mechanism (40) further comprises: The filter element (47) is provided with an air inlet, and the filter element (47) is communicated with the air inlet.

8. The clamping device according to claim 7, characterized in that: The clamping device further comprises a mounting seat (10), and the moving mechanism (50) comprises: A mounting block (51), wherein the transmission mechanism (30) is arranged on the mounting block (51); A lead screw (52) is threadedly connected to the mounting block (51), and the lead screw (52) extends along the second direction and is rotatably connected to the mounting seat (10); a guide block (53) arranged on the transmission mechanism (30); the mounting seat (10) is provided with a guide groove (11) along the second direction; the guide block (53) is inserted into the guide groove (11) and can slide along the guide groove (11); and The driving member (54) is configured to drive the lead screw (52) to rotate.

9. A method for using a clamping device, characterized in that: The method is completed using the clamping device according to any one of claims 1 to 8, comprising the following steps: The driving mechanism (20) drives at least two transmission mechanisms (30) to move along a first direction; The transmission mechanism (30) converts the linear motion of the driving mechanism (20) along the first direction into rotation, so that the clamping mechanism (40) clamps or releases the workpiece; The moving mechanism (50) drives the clamping mechanism (40) to move along the second direction.

10. The method for using the clamping device according to claim 9, characterized in that: After the clamping mechanism (40) clamps the workpiece, the air pump (46) fills the air bag (44) with gas.

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