Compact clamping mechanism

Abstract

The utility model provides a compact type clamping mechanism which comprises a base, a sliding block structure which is arranged on the base and moves in the vertical direction, and two symmetrical connecting rod structures which are arranged on the left side and the right side of the base, a pressing block is horizontally arranged on each connecting rod structure, and the two pressing blocks are symmetrical to each other. The connecting rod structures are rotationally connected with the sliding block structures and the base correspondingly, the pressing blocks are rotationally connected with the corresponding connecting rod structures, the connecting rod structures act under driving of the sliding block structures, the pressing blocks horizontally move in the left-right direction under driving of the connecting rod structures, and when the clamping mechanism is in the closed or opened state, the pressing blocks are kept in the horizontal state. Therefore, the structure is compact, the pressing block is driven to move through the sliding block structure and the connecting rod structure, the pressing block is always kept in the horizontal state in the opening and closing states, the space in the height direction is saved, machine collision accidents are avoided, and the situation that products are not pressed tightly is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to device processing technical field, concretely relates to a compact clamping mechanism. BACKGROUND

[0002] The compact clamping mechanism is a mechanism developed for jig carrying, in the previous mechanism, the realization jaw opening will use jaw cylinder, or unilateral compression mode, so that the upper and lower space cannot avoid, influence the automatic feeding and discharging, or use multiple power sources to complete this action, not only waste cost, and the structure is complex, cannot achieve synchronization, easy to press the jig or tilt, poor stability. The compact clamping mechanism solves the above problems, a power source can complete multiple actions, the structure is simple and efficient, left and right compression consistency is high, can adapt to the fixation of various jig carrying, and is applied more in the automobile, wire harness, home appliance industry and 3C industry.

[0003] The compact clamping mechanism generally includes power source (cylinder) and parallel link mechanism. When working, the jig is placed on the positioning seat, the link mechanism is powered by the cylinder, when needing clamping, is pushed out upward by the cylinder, the pressing block will move forward and downward at the same time, and then the pressing block will press the jig on both sides at the same time. When opening, the cylinder is pulled back to the original point, the pressing block will be lifted rearward and upward, and after passing the highest point, the pressing block is withdrawn rearward and downward again.

[0004] At present, a problem appears in the carrying process, the jaw will be lifted too high when opening, leading to the interference of other mechanisms of the equipment with the pressing block, and the collision accident during work, therefore the pressing block needs to be sunk, so that the pressing block does not interfere with other mechanisms when doing reciprocating motion, and the pressing block needs to be higher than when opening to facilitate the pressing of the jig, therefore the problem of unable to press or interference of the pressing block exists. UTILITY MODEL CONTENTS

[0005] The utility model discloses to solve one of the above technical problems, and proposes the following technical scheme.

[0006] The utility model discloses an embodiment proposes a compact clamping mechanism, including base, the slider structure that sets up on the base and moves along up and down direction, two mutually symmetrical link structures that set up in the left and right sides of the base, two The link structure respectively horizontal one pressing block is set up on each, two The pressing block is mutually symmetrical, the link structure is connected with the slider structure, the base rotation respectively, the pressing block is connected with corresponding link structure rotation, the link structure is driven under the slider structure, the pressing block is driven under the link structure and moves horizontally along left and right directions, when the clamping mechanism is in closed or open state, the pressing block keeps horizontal state.

[0007] In addition, the compact clamping mechanism according to the above-mentioned embodiment of the utility model can further have the following additional technical features.

[0008] In some examples, the sliding block structure comprises a first sliding block horizontally arranged on the base and moving in the up-down direction, and the two ends of the first sliding block are provided with second sliding blocks symmetrical to each other, one end of the second sliding block is fixedly connected with the first sliding block, and the other end of the second sliding block is rotatably connected with the connecting rod structure.

[0009] In some examples, the connecting rod structure comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is rotatably connected with the other end of the second sliding block, the other end of the first connecting rod is rotatably connected with a first end of the second connecting rod, a second end of the second connecting rod is rotatably connected with the base, a third end of the second connecting rod is rotatably connected with a first end of the pressing block, one end of the third connecting rod is rotatably connected with the base, the other end of the third connecting rod is rotatably connected with a second end of the pressing block, and the part of the second connecting rod connecting the base and the pressing block is parallel to the third connecting rod.

[0010] In some examples, the second end of the second connecting rod is rotatably connected with the base through a first rotating shaft, the third end of the second connecting rod is rotatably connected with the first end of the pressing block through a second rotating shaft, one end of the third connecting rod is rotatably connected with the base through a third rotating shaft, and the other end of the third connecting rod is rotatably connected with the second end of the pressing block through a fourth rotating shaft, wherein the first rotating shaft and the third rotating shaft are parallel to each other and have the same height from the ground, and the second rotating shaft and the fourth rotating shaft are parallel to each other and have the same height from the ground.

[0011] In some examples, the compact clamping mechanism further comprises a pneumatic cylinder arranged on the base, a push rod is vertically arranged on the pneumatic cylinder, and the first sliding block is vertically connected with the push rod.

[0012] The technical scheme of the utility model embodiment has the advantages of compact structure, and the pressing block is always kept in a horizontal state in the open and closed states, which saves the space in the height direction, avoids the machine collision accident, and avoids the situation that the product is not pressed tightly. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The figure is a structure schematic view of the compact clamping mechanism of the utility model embodiment when the compact clamping mechanism is opened.

[0014] Figure 2 The figure is a front view of the compact clamping mechanism of the utility model embodiment when the compact clamping mechanism is opened.

[0015] Figure 3 The figure is a structure schematic view of the compact clamping mechanism of the utility model embodiment when the compact clamping mechanism is closed.

[0016] Figure 4A front view of the compact clamping mechanism of the embodiment of the present utility model in a closed state.

[0017] Reference signs: 1. base; 2. slider structure, 21. first slider, 22. second slider; 3. connecting rod structure, 31. first connecting rod, 32. second connecting rod, 33. third connecting rod; 4. pressing block; 5. air cylinder; 6. push rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0019] Figures 1 to 4 A structural schematic view of the compact clamping mechanism of the embodiment of the present utility model.

[0020] As shown in the drawings, Figures 1 to 4 The compact clamping mechanism comprises a base 1, a slider structure 2 arranged on the base 1 and moving in the up-down direction, and two mutually symmetrical connecting rod structures 3 arranged on the left and right sides of the base 1. One pressing block 4 is horizontally arranged on each of the two connecting rod structures. The two pressing blocks 4 are mutually symmetrical. The connecting rod structures 3 are rotationally connected with the slider structure 2 and the base 1 respectively. The pressing blocks 4 are rotationally connected with the corresponding connecting rod structures 3. The connecting rod structures 3 act under the driving of the slider structure 2. The pressing blocks 4 move horizontally in the left-right direction under the driving of the connecting rod structures 3. When the clamping mechanism is in a closed or open state, the pressing blocks 4 remain in a horizontal state (parallel to the setting plane).

[0021] The rotationally connected structure can be realized by a rotating shaft. For example, the connecting rod structures 3 are rotationally connected with the slider structure 2 by at least one rotating shaft. The slider structure 2 comprises a first slider 21 and a second slider 22. The connecting rod structure 3 comprises a first connecting rod 31, a second connecting rod 32 and a third connecting rod 33.

[0022] Specifically, in the Figure 1 , Figure 2 open state, when it is needed to clamp a product, the sliding structure 2 is driven to move vertically upward, driving the two connecting rod structures 3 to rotate, and in turn driving the respective pressing blocks 4 to move. The left pressing block 4 moves horizontally to the right, and the right pressing block 4 moves horizontally to the left, until the pressing blocks 4 are parallel to the product, thereby completing the double clamping of the product. During this process, the pressing blocks 4 remain in a horizontal state. At this time, the mechanism is in a Figure 3 , Figure 4 closed state as shown in the drawings, and the pressing blocks 4 are in a horizontal state and are pressed on the product.

[0023] In Figure 3 , Figure 4 closed state, when it is needed to separate from the product, the sliding structure 2 is driven to move vertically downward, which drives the two linkage structures 3 to rotate, and then drives the respective pressing blocks 4 to move: the left pressing block 4 moves horizontally to the left, and the right pressing block 4 moves horizontally to the right, until the pressing blocks 4 separate from the product, and the separation from the product is completed, in which process the pressing blocks 4 remain in the horizontal state, and at this time the mechanism is in Figure 1 , Figure 2 open state shown in the figure, the pressing blocks 4 are in the horizontal state and separate from the product.

[0024] In the process of clamping and separation, the moving direction of the sliding structure 2 is opposite, the rotating direction of the same linkage structure 3 is opposite, and the moving direction of the same pressing block 4 is opposite. In the process of clamping or separation, the linkage structures 3 on the left and right sides rotate symmetrically, and simultaneously drive the pressing blocks 4 on the left and right sides to move symmetrically.

[0025] The utility model discloses a compact clamping mechanism which realizes clamping or separation of the product through the cooperation of the sliding structure, the linkage structure and the pressing block. When opening and closing, the pressing block always moves horizontally and is always in the horizontal state, without the need of lifting, which can save the space in the height direction of the pressing block on the basis of ensuring the pressing of the product, and avoid the problem of machine collision accidents caused by the interference of the pressing block.

[0026] Therefore, the compact clamping mechanism of the utility model embodiment has a compact structure, and the pressing block is driven to move through the sliding block structure and the linkage structure, and in the open and closed states, the pressing block always remains in the horizontal state, which not only saves the space in the height direction and avoids machine collision accidents, but also avoids the situation that the product cannot be pressed tightly.

[0027] In one example, referring to Figures 1 to 4 , the sliding block structure 2 includes a first sliding block 21 horizontally arranged on the base 1 and moving in the up-down direction, and the two ends of the first sliding block 21 are provided with second sliding blocks 22 which are symmetrical to each other, one end of the second sliding block 22 is fixedly connected with the first sliding block 21, and the other end of the second sliding block 22 is rotationally connected with the linkage structure 3.

[0028] The linkage structure 3 includes a first linkage 31, a second linkage 32 and a third linkage 33.

[0029] One end of the first linkage 31 is rotationally connected with the other end of the second sliding block 22, the other end of the first linkage 31 is rotationally connected with the first end of the second linkage 32, the second end of the second linkage 32 is rotationally connected with the base 1, the third end of the second linkage 32 is rotationally connected with the first end of the pressing block 4, one end of the third linkage 33 is rotationally connected with the base 1, the other end of the third linkage 33 is rotationally connected with the second end of the pressing block 4, and the part of the second linkage 32 connecting the base and the pressing block is parallel to the third linkage 33.

[0030] The second end of the second connecting rod 32 is rotationally connected with the base 1 through a first rotation axis c, the third end of the second connecting rod 32 is rotationally connected with the first end of the pressing block 4 through a second rotation axis b, one end of the third connecting rod 33 is rotationally connected with the base 1 through a third rotation axis d, the other end of the third connecting rod 33 is rotationally connected with the second end of the pressing block 4 through a fourth rotation axis a, wherein the first rotation axis c and the third rotation axis d are parallel to each other and have the same height from the ground, and the second rotation axis b and the fourth rotation axis a are parallel to each other and have the same height from the ground.

[0031] When the clamping mechanism is in the closed or open state, the part of the second connecting rod 32 connecting the base 1 and the pressing block 4 is parallel to the third connecting rod 33.

[0032] When the clamping mechanism is in the closed or open state, the part of the second connecting rod 32 connecting the base 1 and the pressing block 4 is parallel to the third connecting rod 33. Figure 2 Figure 4 When the clamping mechanism is viewed from the front, the pressing block 4 is parallel to the setting plane, the part of the second connecting rod 32 connecting the base 1 is parallel to the third connecting rod 33, the first rotation axis c and the third rotation axis d are parallel to each other and have the same height from the ground, and the second rotation axis b and the fourth rotation axis a are parallel to each other and have the same height from the ground. That is, when the clamping mechanism is viewed from the front, the first to fourth rotation axes are four corners of a parallelogram, and the pressing block 4, the part of the second connecting rod 32 connecting the base 1, the third connecting rod 33 and the corresponding part of the base form the parallelogram.

[0033] Further, referring to Figures 1 to 4 , the compact clamping mechanism further comprises a pneumatic cylinder 5 arranged on the base 1, and a push rod 6 vertically arranged on the pneumatic cylinder 5 (which performs a telescopic action), and the first sliding block 21 is vertically connected with the push rod 6.

[0034] Specifically, the working process is as follows: in the open state of Figure 1 , Figure 2 , when the power source (pneumatic cylinder 5) is lifted upward, the first sliding block 21 will lift the second sliding block 22 upward, the first connecting rod 31 will rotate and drive the second connecting rod 32 to rotate around the first rotation axis c, the second connecting rod 32 and the third connecting rod 33 will rotate and drive the pressing block 4 to be parallelly pressed on the product, thereby completing the action of clamping the product, and the clamping state or closed state is shown in Figure 3 , Figure 4 ; in the state of Figure 3 , Figure 4 , when the power source (pneumatic cylinder 5) is pulled downward, the first sliding block 21 will lower the second sliding block 22 downward, the first connecting rod 31 will rotate and drive the second connecting rod 32 to rotate reversely around the first rotation axis c, the second connecting rod 32 and the third connecting rod 33 will rotate and drive the pressing block 6 to be parallelly retracted behind the third connecting rod 33, thereby completing the action of separating from the product, and the separation state or open state is shown in Figure 1 , Figure 2 .​

[0035] In summary, the compact clamping mechanism provides a mechanism for driving multiple accessories in multiple dimensions by a power source.

[0036] (1) The mechanism can drive multiple accessories to complete multi-dimensional motion with one power source;

[0037] (2) The mechanism is simple in structure, convenient to use, small in structure, and convenient to integrate on an automatic production line body;

[0038] (3) The mechanism is simple in structure, easy to install and debug, and high in stability;

[0039] (4) The mechanism only needs one power source, saving cost;

[0040] (5) In the open and closed state, the pressing block always maintains a horizontal state, which not only saves the space in the height direction, but also avoids the situation that the product is pressed by the root of the clamping jaw when the product is pressed, and the end of the clamping jaw is not pressed tightly.

[0041] In the description of the present application, the description of 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 application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A compact clamping mechanism, characterized in that, The device comprises a base, a slider structure arranged on the base and moving in the up-down direction, two symmetrical link structures arranged on the left and right sides of the base, one pressing block horizontally arranged on each of the two link structures, the two pressing blocks being symmetrical to each other, the link structures being rotationally connected with the slider structure and the base respectively, the pressing blocks being rotationally connected with the corresponding link structures, the link structures being driven by the slider structure to move, the pressing blocks being horizontally moved in the left-right direction by the link structures, and the pressing blocks keeping horizontal when the clamping mechanism is in the closed or open state.

2. The compact clamping mechanism of claim 1, wherein, The slider structure comprises a first slider horizontally arranged on the base and moving in the up-down direction, and two symmetrical second sliders arranged at the two ends of the first slider, one end of the second slider being fixedly connected with the first slider, and the other end of the second slider being rotationally connected with the link structure.

3. The compact clamping mechanism of claim 2, wherein, The link structure comprises a first link, a second link and a third link, one end of the first link being rotationally connected with the other end of the second slider, the other end of the first link being rotationally connected with the first end of the second link, the second end of the second link being rotationally connected with the base, the third end of the second link being rotationally connected with the first end of the pressing block, one end of the third link being rotationally connected with the base, the other end of the third link being rotationally connected with the second end of the pressing block, and the part of the second link connecting the base and the pressing block being parallel to the third link.

4. The compact clamping mechanism of claim 3, wherein, The second end of the second link is rotationally connected with the base through a first rotation shaft, the third end of the second link is rotationally connected with the first end of the pressing block through a second rotation shaft, one end of the third link is rotationally connected with the base through a third rotation shaft, and the other end of the third link is rotationally connected with the second end of the pressing block through a fourth rotation shaft, wherein the first rotation shaft and the third rotation shaft are parallel to each other and have the same height from the ground, and the second rotation shaft and the fourth rotation shaft are parallel to each other and have the same height from the ground.

5. The compact clamping mechanism of claim 2, wherein, The device further comprises a cylinder arranged on the base, a push rod being vertically arranged on the cylinder, and the first slider being vertically connected with the push rod.

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