Adjustable clamping device for machining

Abstract

The utility model relates to the technical field of machining, and particularly discloses an adjustable clamping device for machining, which comprises a lifting mechanism, a clamping mechanism and a clamping mechanism, the driving mechanism comprises a mounting frame assembly mounted on the supporting assembly; by controlling the driving assembly, the two clamps tightly clamp the part from the left side and the right side of the part, the pull handle is lifted upwards and rotated, the pull handle is clamped into the clamping block on the supporting block body, the pull handle drives the limiting rod to be separated from the limiting hole, and therefore rotation limitation on the rotating shaft is relieved, and then the hand wheel is rotated; the clamp and the clamped part are driven to rotate to the needed angle, after the part reaches the proper position, the pull handle is lifted and rotated again to be released from the clamping block, then the pull handle is loosened, at the moment, the spring recovers deformation, the limiting rod is pushed to be embedded into the limiting hole again, repositioning of the rotating shaft is achieved, and it is guaranteed that the part is kept at the needed machining angle.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to an adjustable clamping device for mechanical processing. Background Art

[0002] Machining refers to the process of modifying the dimensions or properties of a workpiece using mechanical equipment. This process encompasses a variety of techniques, including cutting, press working, casting, forging, stamping, and welding. The use of clamping devices is crucial in machining. Their primary function is to ensure the stability of the workpiece during processing. Clamping devices prevent displacement or vibration during machining, thereby ensuring machining accuracy and surface quality.

[0003] Existing clamping devices can often only clamp parts at a single angle. To process a part at a different angle, the operator must first remove the part from the clamping device and reposition it before re-clamping and processing. This process is not only cumbersome and time-consuming, reducing processing efficiency, but can also reduce the positioning accuracy of the part due to multiple clamping operations, affecting the final processing quality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an adjustable clamping device for mechanical processing, so as to solve the problem that the clamping device in the prior art can often only achieve single-angle clamping of parts. When other angles of the parts need to be processed, the operator usually needs to remove the parts from the clamping device first, readjust their position, and then clamp and process them, which reduces the processing efficiency.

[0005] An adjustable clamping device for machining includes: a lifting mechanism including a support assembly, a lifting assembly mounted on the support assembly;

[0006] A driving mechanism comprising a mounting frame assembly mounted on the support assembly and a driving assembly mounted on the mounting frame assembly;

[0007] The clamping mechanism includes a group of support block assemblies that are slidably engaged with the mounting frame assembly, a limiting assembly that is limitedly engaged with the support block assemblies by sliding engagement, and a clamping assembly that is rotatably engaged with the group of support block assemblies. The limiting assembly can limit the position of the clamping assembly, and the driving assembly can drive the group of support block assemblies to move relative to each other.

[0008] The support block assembly includes a connecting rod, one end of which is fixedly connected to the support block body;

[0009] The limiting assembly includes a limiting rod slidably connected to the support block body, the outside of the limiting rod is fixedly connected to a limiting ring, one end of the limiting rod extends to the outside of the support block body and is fixedly connected to a handle, and the outside of the limiting rod is sleeved with a spring;

[0010] The clamping assembly includes a clamp, one end of the clamp is fixedly connected to a rotating shaft, the other end of the rotating shaft passes through the support block body and is fixedly connected to a handwheel, the rotating shaft is rotatably connected to the support block body, and a plurality of limiting holes are opened on the outside of the rotating shaft, and the spring can drive the limiting rod to embed into the limiting hole.

[0011] Preferably, a clamping block is fixedly connected to the top of the support block body, and the handle can be clamped and embedded in the clamping block.

[0012] Preferably, the clamp is further threadedly connected to a threaded rod, one end of the threaded rod is fixedly connected to a handle, and the other end of the threaded rod is rotatably connected to a clamping block through a bearing.

[0013] Preferably, the mounting frame assembly includes a mounting frame body, a group of limiting sliding grooves is opened on the mounting frame body, and a group of connecting rods are correspondingly slidably connected to the group of limiting sliding grooves.

[0014] Preferably, the driving assembly includes a second motor fixedly connected to the mounting frame body, the output end of the second motor extends to the inside of the limiting slide and is fixedly connected to one end of a bidirectional ball screw, the other end of the bidirectional ball screw is rotatably connected to the mounting frame body through a bearing, and a group of connecting rods are threadedly connected to the outside of the bidirectional ball screw.

[0015] Preferably, the support assembly includes a base, the top of the base is fixedly connected to a support frame, a group of guide rods are fixedly connected between the support frame and the base, the outer portions of the group of guide rods are slidably connected to a slide, and the mounting frame body is fixedly connected to the slide;

[0016] The lifting assembly includes a motor 1 fixedly connected to the top of the support frame, the output end of the motor 1 is fixedly connected to one end of a ball screw, the other end of the ball screw is fixedly connected to the top of the base through a bearing, and the slide is threadedly connected to the outside of the ball screw.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The utility model embeds the part between the two clamps, controls the driving assembly, and makes the two clamps tightly clamp the part from the left and right sides of the part to achieve initial fixation, lifts the handle upward and rotates it to make the handle engage in the clamping block on the support block body. At this time, the spring is in a compressed state, and the handle drives the limit rod to disengage from the limit hole, thereby releasing the rotation restriction of the rotating shaft, and then turns the handwheel, which drives the clamp and the clamped part to rotate to the required angle through the rotating shaft. When the part reaches the appropriate position, lift and rotate the handle again to release it from the clamping block, and then release the handle. At this time, the spring recovers its deformation, pushing the limit rod to re-embed the limit hole, thereby achieving repositioning of the rotating shaft, ensuring that the part remains at the required processing angle, and facilitating subsequent processing operations.

[0019] 2. The utility model starts motor 1, which drives the ball screw to rotate. The rotation of the ball screw causes the slide to rise or fall stably under the guidance of the guide rod. The slide drives the mounting frame assembly to move, the mounting frame assembly drives the support block assembly to move, and the support block assembly drives the parts on the clamping assembly to move, so that the parts can be adjusted to a suitable height, thereby improving the convenience and efficiency of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the clamping assembly of the present utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the drive mechanism of the utility model;

[0024] Figure 5 For this utility model Figure 4 A magnified view of middle A;

[0025] Figure 6 It is a structural diagram of the lifting mechanism of the utility model.

[0026] In the figure: 1. lifting mechanism; 11. supporting assembly; 111. base; 112. supporting frame; 113. guide rod; 114. slide; 12. lifting assembly; 121. motor 1; 122. ball screw; 2. driving mechanism; 21. mounting frame assembly; 211. mounting frame body; 212. limiting slide groove; 22. driving assembly; 221. motor 2; 222. bidirectional ball screw; 3. clamping mechanism; 31. supporting block assembly; 311. connecting rod; 312. supporting block body; 313. clamping block; 32. limiting assembly; 321. limiting rod; 322. limiting ring; 323. handle; 324. spring; 33. clamping assembly; 331. fixture; 332. rotating shaft; 333. handwheel; 334. limiting hole; 335. threaded rod; 336. handle; 337. clamping block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown:

[0029] Embodiment 1: The present invention provides an adjustable clamping device for machining, comprising: a lifting mechanism 1 including a support assembly 11, a lifting assembly 12 mounted on the support assembly 11;

[0030] The driving mechanism 2 includes a mounting frame assembly 21 mounted on the supporting assembly 11 and a driving assembly 22 mounted on the mounting frame assembly 21;

[0031] The clamping mechanism 3 includes a set of support block assemblies 31 that are slidably engaged with the mounting frame assembly 21, a limiting assembly 32 that is limitedly engaged with the support block assemblies 31, and a clamping assembly 33 that is rotatably engaged with the set of support block assemblies 31. The limiting assembly 32 can limit the position of the clamping assembly 33, and the driving assembly 22 can drive the set of support block assemblies 31 to move relative to each other.

[0032] The support block assembly 31 includes a connecting rod 311 , one end of which is fixedly connected to a support block body 312 ;

[0033] The limiting assembly 32 includes a limiting rod 321 slidably connected to the support block body 312. The outer portion of the limiting rod 321 is fixedly connected to a limiting ring 322. One end of the limiting rod 321 extends to the outside of the support block body 312 and is fixedly connected to a handle 323. A spring 324 is sleeved on the outer portion of the limiting rod 321.

[0034] The clamping assembly 33 includes a clamp 331, one end of the clamp 331 is fixedly connected to a rotating shaft 332, the other end of the rotating shaft 332 passes through the support block body 312 and is fixedly connected to a handwheel 333, the rotating shaft 332 is rotatably connected to the support block body 312, and a plurality of limiting holes 334 are opened on the outside of the rotating shaft 332, and the spring 324 can drive the limiting rod 321 to embed into the limiting hole 334.

[0035] Among them, the part is clamped between the two clamps 331, and the driving assembly 22 is controlled to make the two support block assemblies 31 move toward each other. The two support block bodies 312 respectively push the clamps 331 installed on the rotating shaft 332, so that the two clamps 331 tightly clamp the part from the left and right sides of the part to achieve preliminary fixation, and the handle 323 is lifted up and rotated so that the handle 323 is clamped into the block 313 on the support block body 312. At this time, the spring 324 is in a compressed state, and the handle 323 drives the limit rod 321 to disengage from the limit hole 334, thereby releasing the rotation restriction of the rotating shaft 332, and then turning the handwheel 333. The handwheel 333 drives the clamp 331 and the clamped part to rotate to the required angle through the rotating shaft 332. When the part reaches the appropriate position, lift and rotate the handle 323 again to release it from the block 313, and then release the handle 323. At this time, the spring 324 recovers its deformation, pushing the limiting rod 321 to re-embed into the limiting hole 334, thereby repositioning the rotating shaft 332 and ensuring that the part remains at the required processing angle, facilitating subsequent processing operations.

[0036] Specifically, a clamping block 313 is fixedly connected to the top of the supporting block body 312 , and the pull handle 323 can be clamped and embedded in the clamping block 313 .

[0037] Specifically, a threaded rod 335 is threadedly connected to the clamp 331 , one end of the threaded rod 335 is fixedly connected to a handle 336 , and the other end of the threaded rod 335 is rotatably connected to a clamping block 337 through a bearing.

[0038] Specifically, the mounting frame assembly 21 includes a mounting frame body 211 , a group of limiting sliding grooves 212 are defined on the mounting frame body 211 , and a group of connecting rods 311 are slidably connected to the group of limiting sliding grooves 212 .

[0039] Specifically, the drive assembly 22 includes a motor 221 fixedly connected to the mounting frame body 211, the output end of the motor 221 extends to the interior of the limiting slide 212 and is fixedly connected to one end of a bidirectional ball screw 222, the other end of the bidirectional ball screw 222 is rotatably connected to the mounting frame body 211 through a bearing, and a set of connecting rods 311 are threadedly connected to the outside of the bidirectional ball screw 222.

[0040] As can be seen from the above, the part is clamped between the two clamps 331, and the motor 221 is started. The motor 221 drives the bidirectional ball screw 222 to rotate. The rotation of the bidirectional ball screw 222 causes the two connecting rods 311 to drive their respective support block bodies 312 to move toward each other. The two support block bodies 312 respectively push the clamps 331 installed on the rotating shaft 332, so that the two clamps 331 tightly clamp the part from the left and right sides to achieve preliminary fixation. By rotating the handle 336, the threaded rod 335 can be driven to rotate on the clamp 331. The rotation of the threaded rod 335 causes the clamping block 337 to move downward until the clamping block 337 is close to the top of the part, providing additional fixing force for the part and further enhancing stability during the processing. When it is necessary to process other surfaces of the part, first lift the pull handle 323 upward and rotate it so that the pull handle 323 is clamped into the clamping block 313 on the support block body 312. At this point, lifting the handle 323 causes the limiting rod 321 to disengage from the limiting hole 334, thereby releasing the rotation restriction on the rotating shaft 332. Subsequently, the handwheel 333 is rotated, and the handwheel 333 drives the clamp 331 and the clamped part to rotate to the desired angle via the rotating shaft 332. When the part reaches the desired position, the handle 323 is lifted and rotated again to release it from the block 313, and then the handle 323 is released. At this point, the spring 324 recovers its deformation, pushing the limiting rod 321 back into the limiting hole 334, achieving the repositioning of the rotating shaft 332, ensuring that the part remains at the desired processing angle and facilitating subsequent processing operations.

[0041] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the support assembly 11 includes a base 111, a support frame 112 is fixedly connected to the top of the base 111, a group of guide rods 113 are fixedly connected between the support frame 112 and the base 111, and a slide 114 is slidably connected to the outer portion of the group of guide rods 113, and the mounting frame body 211 is fixedly connected to the slide 114;

[0042] The lifting assembly 12 includes a motor 121 fixedly connected to the top of the support frame 112, the output end of the motor 121 is fixedly connected to one end of a ball screw 122, the other end of the ball screw 122 is fixedly connected to the top of the base 111 through a bearing, and the slide 114 is threadedly connected to the outside of the ball screw 122.

[0043] As can be seen from the above, when the motor 121 is started, the motor 121 drives the ball screw 122 to rotate. The rotation of the ball screw 122 causes the slide 114 to rise or fall stably under the guidance of the guide rod 113. The slide 114 drives the mounting frame assembly 21 to move. The mounting frame assembly 21 drives the support block assembly 31 to move. The support block assembly 31 drives the parts on the clamping assembly 33 to move, so that the parts can be adjusted to a suitable height, thereby improving the convenience and efficiency of processing.

[0044] Application Process:

[0045] Preparation stage:

[0046] The part to be processed is placed between the two fixtures 331 .

[0047] Ensure that all components such as the limiting rod 321, the spring 324, the threaded rod 335, etc. are in the initial position.

[0048] Initial clamping:

[0049] The second motor 221 is started to drive the bidirectional ball screw 222 to rotate.

[0050] The rotation of the bidirectional ball screw 222 drives the two connecting rods 311 and the supporting block body 312 to move toward each other.

[0051] The support block body 312 pushes the clamp 331 to tightly clamp the part from the left and right sides to achieve preliminary fixation.

[0052] Vertical Fixing:

[0053] The handle 336 is rotated to drive the threaded rod 335 to rotate on the clamp 331 .

[0054] The rotation of the threaded rod 335 causes the clamping block 337 to move downward until it is close to the top of the part, providing additional fixing force.

[0055] Height Adjustment:

[0056] If you need to adjust the processing height of the part, start motor 121.

[0057] The motor 121 drives the ball screw 122 to rotate, so that the slide plate 114 can be stably raised or lowered under the guidance of the guide rod 113.

[0058] The movement of the slide plate 114 drives the components of the entire mounting frame assembly 21 , the support block assembly 31 and the clamping assembly 33 to move to a suitable height.

[0059] Angle adjustment:

[0060] When it is necessary to process other surfaces of the part, first lift up and rotate the pull handle 323 so that it is clamped into the clamping block 313 on the support block body 312.

[0061] At this time, the limiting rod 321 is disengaged from the limiting hole 334 , releasing the rotation restriction on the rotating shaft 332 .

[0062] The hand wheel 333 is rotated to drive the clamp 331 and the clamped part to rotate to a desired angle through the rotating shaft 332.

[0063] Lift and rotate the handle 323 again to release its locked state, loosen the handle 323, and the spring 324 recovers its deformation, pushing the limiting rod 321 to re-embed into the limiting hole 334, thereby repositioning the rotating shaft 332.

[0064] Processing operations:

[0065] Once the part is stably clamped and adjusted to the appropriate height and angle, subsequent machining operations can be performed.

[0066] All standard parts used in this utility model can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. In addition, the circuit connections adopt conventional connection methods in the existing technology and will not be described in detail here. Any matters not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0067] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0068] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0069] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 expressions of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0071] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0072] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable clamping device for machining, characterized in that: include: A lifting mechanism (1) comprises a support assembly (11) and a lifting assembly (12) mounted on the support assembly (11); A driving mechanism (2) comprises a mounting frame assembly (21) mounted on the supporting assembly (11), and a driving assembly (22) mounted on the mounting frame assembly (21); The clamping mechanism (3) comprises a group of support block assemblies (31) slidably embedded on the mounting frame assembly (21), a limiting assembly (32) limitedly slidingly embedded on the support block assemblies (31), and a clamping assembly (33) rotatably embedded on the group of support block assemblies (31), wherein the limiting assembly (32) can limit the clamping assembly (33), and the driving assembly (22) can drive the group of support block assemblies (31) to move relative to each other; The support block assembly (31) comprises a connecting rod (311), one end of which is fixedly connected to a support block body (312); The limiting assembly (32) includes a limiting rod (321) slidably connected to the support block body (312), the outside of the limiting rod (321) is fixedly connected to a limiting ring (322), one end of the limiting rod (321) extends to the outside of the support block body (312) and is fixedly connected to a pull handle (323), and the outside of the limiting rod (321) is sleeved with a spring (324); The clamping assembly (33) includes a clamp (331), one end of the clamp (331) is fixedly connected to a rotating shaft (332), the other end of the rotating shaft (332) passes through the supporting block body (312) and is fixedly connected to a handwheel (333), the rotating shaft (332) is rotatably connected to the supporting block body (312), a plurality of limiting holes (334) are provided on the outside of the rotating shaft (332), and the spring (324) can drive the limiting rod (321) to be embedded in the limiting hole (334).

2. An adjustable clamping device for machining as claimed in claim 1, characterized in that: The top of the support block body (312) is fixedly connected with a clamping block (313), and the pull handle (323) can be clamped and embedded in the clamping block (313).

3. An adjustable clamping device for machining as claimed in claim 2, characterized in that: The clamp (331) is also threadedly connected to a threaded rod (335), one end of the threaded rod (335) is fixedly connected to a handle (336), and the other end of the threaded rod (335) is rotatably connected to a clamping block (337) via a bearing.

4. An adjustable clamping device for machining as claimed in claim 3, characterized in that: The mounting frame assembly (21) comprises a mounting frame body (211), a group of limiting sliding grooves (212) are provided on the mounting frame body (211), and a group of connecting rods (311) are correspondingly slidably connected to the group of limiting sliding grooves (212).

5. An adjustable clamping device for machining as claimed in claim 4, characterized in that: The driving assembly (22) includes a second motor (221) fixedly connected to the mounting frame body (211), an output end of the second motor (221) extending into the interior of the limiting slide groove (212) and fixedly connected to one end of a bidirectional ball screw (222), the other end of the bidirectional ball screw (222) being rotatably connected to the mounting frame body (211) via a bearing, and a set of connecting rods (311) being threadedly connected to the exterior of the bidirectional ball screw (222).

6. An adjustable clamping device for machining as claimed in claim 4, characterized in that: The support assembly (11) comprises a base (111), a support frame (112) is fixedly connected to the top of the base (111), a group of guide rods (113) are fixedly connected between the support frame (112) and the base (111), a slide plate (114) is slidably connected to the outside of the group of guide rods (113), and the mounting frame body (211) is fixedly connected to the slide plate (114); The lifting assembly (12) includes a motor (121) fixedly connected to the top of the support frame (112), the output end of the motor (121) is fixedly connected to one end of a ball screw (122), the other end of the ball screw (122) is fixedly connected to the top of the base (111) through a bearing, and the slide (114) is threadedly connected to the outside of the ball screw (122).

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