Linkage clamping device

Abstract

The utility model relates to a linkage clamping device which comprises a support. The linkage assembly is mounted on the bracket; the linkage assembly comprises a plurality of sliding limiting blocks which are arranged in the first direction and fixed to the support, a linear sliding rod which extends in the first direction and is in sliding connection with the sliding limiting blocks, and a plurality of first connecting rods with one ends hinged to the linear sliding rod. The end, hinged to the linear sliding rod, of the first connecting rod is limited to move in the first direction, and the other end of the first connecting rod is limited to move in the second direction. The first direction is perpendicular to the second direction; the holding and clamping assemblies are arranged in one-to-one correspondence with the first connecting rods in the first direction; the clamping assemblies are installed on the support and hinged to the ends, away from the linear sliding rods, of the corresponding first connecting rods. The holding and clamping assembly is provided with an expandable or contractible holding and clamping space; when the linear sliding rod moves in the first direction, the clamping space of each clamping assembly is driven by the first connecting rod to expand or contract synchronously. According to the utility model, the clamping effect on a longer object is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, in particular to a linkage clamping device. Background Art

[0002] Clamping devices play a vital role in modern industrial production and logistics. For example, in warehousing and logistics, goods of various shapes and sizes need to be handled and stacked. Traditional handling equipment often has many shortcomings when handling special shapes or fragile goods.

[0003] For example, for a long tubular or cylindrical object, the prior art generally provides a plurality of independently operated clamping devices to clamp the object, thereby improving the stability of the object.

[0004] However, these multiple, independently configured clamping devices present the following challenges: 1. Manual intervention necessitates sequential operations, slowing logistics and production cycles, reducing productivity and failing to meet the demands for rapid response and efficient operation. 2. While intelligent control can mitigate latency and synchronization issues to a certain extent, improving production efficiency, each clamping device requires a drive source, increasing both space requirements and equipment costs. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model discloses a linkage clamping device.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A linkage clamping device, comprising:

[0008] Bracket;

[0009] A linkage assembly is mounted on the bracket; the linkage assembly includes a plurality of sliding limit blocks arranged along a first direction and fixed to the bracket, a linear slide rod extending along the first direction and slidably connected to the sliding limit block, and a plurality of first connecting rods hinged at one end to the linear slide rod; the end of the first connecting rod hinged to the linear slide rod is restricted to move along the first direction, and the other end of the first connecting rod is restricted to move along the second direction; the first direction is perpendicular to the second direction;

[0010] Multiple clamping assemblies are arranged one-to-one corresponding to the first connecting rod along the first direction; the clamping assemblies are installed on the bracket and are hinged to the end of the linear slide rod away from the corresponding first connecting rod; the clamping assembly has an expandable or contractible clamping space; when the linear slide rod moves along the first direction, the clamping space of each clamping assembly is driven to expand or contract synchronously by the first connecting rod.

[0011] In one embodiment of the present invention, the clamping assembly includes a clamping fixing member fixed to the bracket, two clamping followers hinged to the clamping fixing member, and a clamping drive mechanism installed on the clamping fixing member; a clamping space of variable size is formed between the clamping fixing member and the clamping followers; the movable part of the clamping drive mechanism is respectively connected to the first connecting rod and the clamping followers.

[0012] In one embodiment of the present invention, the clamp fixing member includes a fixing bracket fixed to the bracket, and an arc-shaped support portion fixed to the side of the fixing bracket away from the bracket; the side of the arc-shaped support portion away from the bracket is bent toward the side of the bracket to form an arc-shaped structure; the two clamp followers in each of the clamp assemblies are respectively hinged to the two ends of the arc-shaped support portion.

[0013] In one embodiment of the present invention, the clamping follower includes an arc-shaped rotating portion with one end hinged to the end of the arc-shaped supporting portion; the arc-shaped rotating portion is connected to the clamping driving mechanism.

[0014] In one embodiment of the present invention, the clamping drive mechanism includes a supporting body fixedly mounted on a side of the fixed bracket away from the arc-shaped support portion, a second connecting rod extending along a second direction and slidingly connected to the supporting body, a moving part connected to the second connecting rod, and two third connecting rods hinged to the moving part.

[0015] In one embodiment of the present invention, the end portion where the arc-shaped rotating portion is hinged to the arc-shaped supporting portion extends outward to form a second hinge portion; and the second hinge portion is connected to the clamping drive mechanism.

[0016] In one embodiment of the present invention, the movable member is formed with two symmetrical first hinged parts along the third direction; one end of the two third connecting rods is respectively hinged to the first hinged parts, and the other end of the two third connecting rods is respectively hinged to the corresponding two second hinged parts; the third direction is perpendicular to the first direction and the second direction respectively.

[0017] In one embodiment of the present invention, the supporting body includes a supporting main board and supporting side plates fixed on both sides of the supporting main board along the second direction; the end of the second connecting rod away from the first connecting rod passes through the supporting side plate on one side of the supporting main board along the second direction and is fixedly connected to the moving part.

[0018] In one embodiment of the present invention, the movable part extends along the first direction to form a limiting fixing portion; the limiting fixing portion is located between the two supporting side plates; the end of the second connecting rod away from the first connecting rod passes through the supporting side plate on one side of the supporting main board along the second direction and is fixedly connected to the limiting fixing portion.

[0019] In one embodiment of the present invention, the clamping assembly further includes a support pad installed on the arc-shaped support portion and the arc-shaped rotating portion.

[0020] The above technical solution of the utility model has the following advantages compared with the prior art:

[0021] The linked clamping device described in this utility model achieves synchronous clamping of multiple clamping assemblies, improving the clamping effect of longer objects. Compared with the existing technology, the linked clamping device described in this utility model only needs to set up a linear drive mechanism to achieve the synchronous operation of multiple clamping assemblies, eliminating delay and synchronization issues. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0023] Figure 1 It is a structural diagram of the linkage clamping device.

[0024] Figure 2 It is a structural diagram of the linkage component and the clamping component.

[0025] Figure 3 It is a structural diagram of the clamp assembly.

[0026] Figure 4 It is a structural diagram of an embodiment of a clamping drive mechanism.

[0027] Figure 5 It is a structural schematic diagram of another embodiment of the clamping drive mechanism.

[0028] Description of the accompanying drawings:

[0029] 1. Bracket; 11. Column; 12. Beam; 13. First connecting rod; 14. Second connecting rod; 15. Third connecting rod;

[0030] 2. Linkage assembly; 21. Sliding limit block; 22. Linear slide; 23. First connecting rod;

[0031] 3. Clamp assembly; 31. Clamp fixing member; 311. Fixing bracket; 312. Arc-shaped support portion; 32. Clamp follower; 321. Arc-shaped rotating portion; 3211. Second hinge portion; 33. Clamp driving mechanism; 331. Support body; 3311. Support main board; 3312. Support side plate; 332. Moving member; 3321. First hinge portion; 3322. Position-limiting fixing portion; 333. Second connecting rod; 334. Third connecting rod; 34. Clamping space; 35. Support pad. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0033] Existing multiple, independently installed clamping devices present the following challenges: 1. Manual intervention requires sequential operations, slowing logistics and production cycles, reducing productivity, and failing to meet the demands for rapid response and efficient operation. 2. While intelligent control can alleviate latency and synchronization issues to a certain extent and improve production efficiency, each clamping device requires a drive source, which increases space requirements and equipment costs.

[0034] In order to solve the above problems, this embodiment provides a linkage clamping device.

[0035] like Figure 1 As shown, this embodiment provides a linkage clamping device, including a bracket 1, a linkage component 2 installed on the bracket 1, and a plurality of clamping components 3 installed on the bracket 1.

[0036] Combine Figure 1 , the bracket 1 includes a first supporting member arranged in the vertical direction and a second supporting member arranged in the horizontal direction at the bottom of the first setting member. The first supporting member and the second supporting member are used to support and / or fix the linkage assembly 2 and the clamping assembly 3. For the convenience of describing the specific structure in this embodiment, the direction of the first supporting member is defined as vertical, and the direction of the second supporting member is defined as horizontal. In actual applications, the first supporting member and the second supporting member may not be vertical and horizontal. Instead, they should be understood based on the specific posture of the linkage clamping device. Figure 1As shown, the first support member includes two columns 11 and a plurality of crossbeams 12 disposed between the two columns 11. The second support member includes a first connecting rod 13, a second connecting rod 14, and a third connecting rod 15, wherein the first connecting rod 13 and the second connecting rod 14 are parallel to each other, and the third connecting rod 15 is perpendicularly disposed between the first connecting rod 13 and the second connecting rod 14, and the first connecting rod 13 and the second connecting rod 14 are respectively connected to the two columns 11. It should be noted that the connection between the columns 11 and the crossbeams 12, the connection between the first connecting rod 13 and the columns 11, the connection between the second connecting rod 14 and the columns 11, the connection between the first connecting rod 13 and the third connecting rod 15, and the connection between the second connecting rod 14 and the third connecting rod 15 can all be one or more of welding, bolt connection, and pin connection. Of course, the bracket 1 can also adopt a spatial truss structure or a semi-enclosed support structure, which can be selected by those skilled in the art according to needs.

[0037] In this embodiment, in order to describe the relationship between the various parts and components, a local coordinate system is established, with the height direction of the bracket 1 as the first direction, the long side direction of the bracket 1 as the second direction, and the wide side direction of the bracket 1 as the third direction. Figure 1 As shown, it is obvious that the first direction and the second direction are perpendicular to each other. The third direction is perpendicular to the first direction and the second direction respectively.

[0038] like Figure 2 As shown, the linkage assembly 2 includes a plurality of sliding limit blocks 21, a linear slide 22, and a plurality of first connecting rods 23. The sliding limit blocks 21 are arranged along the first direction and fixed to the bracket 1. The linear slide 22 extends along the first direction and is slidably connected to the sliding limit blocks 21. The plurality of first connecting rods 23 is equal in number to the clamping assembly 3 and is arranged in a one-to-one correspondence. One end of the first connecting rod 23 is hinged to the linear slide 22, and the other end of the first connecting rod 23 is hinged to the clamping assembly 3. During the movement of the linear slide 22 in the first direction, the other end of the first connecting rod 23 is restricted to move in the second direction.

[0039] Multiple clamping assemblies 3 are arranged in a one-to-one correspondence with the first connecting rod 23 along the first direction. The clamping assembly 3 is mounted on the bracket 1 and is hinged to the end of the linear slide rod 22 away from the corresponding first connecting rod 23. The clamping assembly 3 includes a clamping fixing member 31, two clamping followers 32 and a clamping drive mechanism 33. The clamping fixing member 31 is fixed to the bracket 1. The two clamping followers 32 are hingedly mounted at both ends of the clamping fixing member 31. A clamping space 34 that can expand or contract, i.e., change in size, is formed between the clamping fixing member 31 and the clamping followers 32. The clamping drive mechanism 33 is mounted on the clamping fixing member 31, and the movable parts of the clamping drive mechanism 33 are respectively connected to the first connecting rod 23 and the clamping followers 32. When the linear slide 22 moves along the first direction, the corresponding clamping drive mechanisms 33 are driven to move by the multiple first connecting rods 23, and then the clamping drive mechanisms 33 drive the clamping follower 32 to move, thereby achieving synchronous expansion or contraction of the clamping spaces 34 of the multiple clamping assemblies 3.

[0040] It should be noted that in this embodiment, two clamping assemblies 3 are provided. The size and shape of the product to be clamped determines the number of clamping assemblies 3 required to stabilize and support the workpiece. Larger workpieces may require more clamping assemblies 3 to distribute the clamping force.

[0041] Combine Figure 3 The clamping fixture 31 includes a fixing bracket 311 and an arcuate support portion 312. The fixing bracket 311 is fixed to the bracket 1. The arcuate support portion 312 is fixed to the side of the fixing bracket 311 away from the bracket 1. The side of the arcuate support portion 312 away from the bracket 1 is curved toward the bracket 1 to form an arc-shaped structure. The arcuate support portion 312 enables precise positioning of curved parts. The two clamping followers 32 in each clamping assembly 3 are hinged to the ends of the arcuate support portion 312.

[0042] The clamping follower 32 includes an arcuate rotating portion 321. One end of the arcuate rotating portion 321 is hinged to the end of the arcuate support portion 312. The arcuate rotating portion 321 is connected to the clamping drive mechanism 33. The end where the arcuate rotating portion 321 is hinged to the arcuate support portion 312 extends outward to form a second hinge portion 3211, which is connected to the clamping drive mechanism 33.

[0043] In a further embodiment, to provide stable, self-centering support, reduce pressure concentration, and improve force distribution, the clamping assembly 3 further includes a support pad 35 mounted on the arc-shaped support portion 312 and the arc-shaped rotating portion 321. Of course, the support pad 35 may also be provided for other purposes. For example, if the object to be clamped is high temperature or hot, the support pad 35 may be made of a high-temperature resistant material.

[0044] Combine Figure 4The clamping drive mechanism 33 includes a supporting body 331, a moving member 332, a second connecting rod 333, and two third connecting rods 334. The supporting body 331 is fixedly mounted on the side of the fixed bracket 311 away from the arc-shaped support portion 312. The second connecting rod 333 is extended along the second direction and is slidably connected to the supporting body 331. One end of the second connecting rod 333 is hinged to the first connecting rod 23, and the other end of the second connecting rod 333 is fixedly connected to the moving member 332. The moving member 332 is formed with two symmetrical first hinged portions 3321 along the third direction, one end of the two third connecting rods 334 is respectively hinged to the first hinged portion 3321, and the other end of the two third connecting rods 334 is respectively hinged to the second hinged portions 3211 of the corresponding two clamping followers 32.

[0045] In a further embodiment, the support body 331 includes a support main plate 3311 and support side plates 3312 fixed to both sides of the support main plate 3311 along the second direction. The end of the second connecting rod 333 away from the first connecting rod 23 passes through the support side plates 3312 on one side of the support main plate 3311 along the second direction and is fixedly connected to the moving member 332. The moving member 332 extends along the first direction to form a limited fixed portion 3322. The limited fixed portion 3322 is located between the two support side plates 3312. In this way, the second connecting rod 333 can drive the moving member 332 to move and limit the moving distance of the moving member 332.

[0046] In a possible embodiment, the end of the second connecting rod 333 away from the first connecting rod 23 passes through the supporting side plate 3312 on one side of the supporting main plate 3311 along the second direction and is fixedly connected to the limiting fixing portion 3322 .

[0047] Combine Figure 5 In another possible embodiment, the end portion of the second connecting rod 333 connected to the position-limiting fixing portion 3322 continues to extend in the second direction and passes through the supporting side plate 3312 on the other side of the supporting main plate 3311. This improves the smoothness of the movement of the second connecting rod 333 in the second direction and reduces wear on the second connecting rod 333 and the supporting side plate 3312.

[0048] The working principle of this embodiment is as follows:

[0049] During the movement of the linear slide 22 along the first direction, the corresponding clamping drive mechanism 33 is driven to move through multiple first connecting rods 13, and then the clamping drive mechanism 33 drives the clamping follower 32 to move, thereby realizing the synchronous expansion or contraction of the clamping space 34 of multiple clamping assemblies 3, thereby releasing or clamping the clamped product.

[0050] As can be seen from the above, the linked clamping device provided in the embodiment realizes the synchronous clamping of multiple clamping assemblies 3, improving the clamping effect of longer objects. Compared with the prior art, the linked clamping device only needs to set up a linear drive mechanism through a straight line to realize the synchronous operation of multiple clamping assemblies 3, without delay and synchronization problems. Of course, the linear drive mechanism may be an active drive mechanism such as an electric linear module, or it may be a passive power source, such as manual or relying on the weight of other objects. It is irrelevant to the problem to be solved by this application and will not be described in detail. In addition, the linear slide 22 can move in both directions in the first direction to achieve clamping of the clamping assembly 3. Therefore, according to the specific positions of the first connecting rod 13 and the second connecting rod 14, the running direction of the drive is adaptively controlled, and there is no need for the drive in the prior art to only run in one direction for clamping. In addition, the linear slide 22 can clamp while moving in both directions in the first direction, which also provides space options for setting the drive and controlling the movement of the linear slide 22.

[0051] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A linkage clamping device, characterized in that: include: Bracket (1); A linkage assembly (2) is mounted on the bracket (1); the linkage assembly (2) comprises a plurality of sliding limit blocks (21) arranged along a first direction and fixed to the bracket (1), a linear slide rod (22) extending along the first direction and slidably connected to the sliding limit block (21), and a plurality of first connecting rods (23) one end of which is hinged to the linear slide rod (22); the end of the first connecting rod (23) hinged to the linear slide rod (22) is restricted to move along the first direction, and the other end of the first connecting rod (23) is restricted to move along the second direction; the first direction and the second direction are perpendicular; A plurality of clamping assemblies (3) are arranged one-to-one corresponding to the first connecting rod (23) along the first direction; the clamping assemblies (3) are mounted on the bracket (1) and are hinged to the ends of the linear slide rods (22) away from the corresponding first connecting rods (23); the clamping assemblies (3) have a clamping space (34) that can expand or contract; when the linear slide rod (22) moves along the first direction, the clamping spaces (34) of the clamping assemblies (3) are driven to expand or contract synchronously through the first connecting rod (23).

2. The linkage clamping device according to claim 1, characterized in that: The clamping assembly (3) comprises a clamping fixture (31) fixed to the bracket (1), two clamping followers (32) hinged to the clamping fixture (31), and a clamping drive mechanism (33) mounted on the clamping fixture (31); a clamping space (34) of variable size is formed between the clamping fixture (31) and the clamping followers (32); and the movable part of the clamping drive mechanism (33) is connected to the first connecting rod (23) and the clamping followers (32), respectively.

3. The linkage clamping device according to claim 2, characterized in that: The clamp fixing member (31) comprises a fixing bracket (311) fixed to the bracket (1), and an arc-shaped support portion (312) fixed to a side of the fixing bracket (311) away from the bracket (1); the side of the arc-shaped support portion (312) away from the bracket (1) is bent toward the side of the bracket (1) to form an arc-shaped structure; and the two clamp follower members (32) in each clamp assembly (3) are respectively hinged to two ends of the arc-shaped support portion (312).

4. The linkage clamping device according to claim 3, characterized in that: The clamping follower (32) comprises an arc-shaped rotating portion (321) one end of which is hinged to the end of the arc-shaped support portion (312); the arc-shaped rotating portion (321) is connected to the clamping drive mechanism (33).

5. The linkage clamping device according to claim 4, characterized in that: The clamping drive mechanism (33) comprises a supporting body (331) fixedly mounted on a side of the fixed bracket (311) away from the arc-shaped support portion (312), a second connecting rod (333) extending in a second direction and slidably connected to the supporting body (331), a moving member (332) connected to the second connecting rod (333), and two third connecting rods (334) hinged to the moving members (332).

6. The linkage clamping device according to claim 5, characterized in that: The end portion where the arc-shaped rotating portion (321) and the arc-shaped supporting portion (312) are hinged extends outward to form a second hinge portion (3211); the second hinge portion (3211) is connected to the clamping drive mechanism (33).

7. The linkage clamping device according to claim 6, characterized in that: The movable member (332) is formed with two symmetrical first hinged portions (3321) along a third direction; one end of the two third connecting rods (334) is respectively hinged to the first hinged portions (3321), and the other ends of the two third connecting rods (334) are respectively hinged to the corresponding two second hinged portions (3211); the third direction is perpendicular to the first direction and the second direction.

8. The linkage clamping device according to claim 7, characterized in that: The supporting body (331) comprises a supporting main plate (3311) and supporting side plates (3312) fixed to both sides of the supporting main plate (3311) along the second direction; the end of the second connecting rod (333) away from the first connecting rod (23) passes through the supporting side plate (3312) on one side of the supporting main plate (3311) along the second direction and is fixedly connected to the moving member (332).

9. The linkage clamping device according to claim 8, characterized in that: The movable member (332) extends along the first direction to form a position-limiting fixing portion (3322); the position-limiting fixing portion (3322) is located between the two support side plates (3312); the end of the second connecting rod (333) away from the first connecting rod (23) passes through the support side plate (3312) on one side of the support main plate (3311) along the second direction and is fixedly connected to the position-limiting fixing portion (3322).

10. The linkage clamping device according to claim 4, characterized in that: The clamping assembly (3) further comprises a support pad (35) mounted on the arc-shaped support portion (312) and the arc-shaped rotating portion (321).

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