CN211565125U - A centering clamping device - Google Patents

Abstract

The utility model discloses a centering clamping device, including base plate, first pinch-off blades and second pinch-off blades can move setting up in both sides of base plate respectively, centering clamping device still includes first cylinder and link gear, the first cylinder level is fixed on the base plate, and lie in between first pinch-off blades and the second pinch-off blades, the piston rod of first cylinder is fixed with first pinch-off blades or second pinch-off blades, the link gear is connected between first pinch-off blades and second pinch-off blades, and be used for controlling first pinch-off blades and second pinch-off blades to be close to or keep away from simultaneously; the centering device has the advantages of low cost, small occupied space and good centering precision.

Description

A centering clamping device

technical field

The utility model relates to the technical field of clamps, in particular to a centering clamping device.

Background technique

In the field of machining, in order to process higher quality products, it is often necessary to clamp the workpiece, and the problem of alignment must also be considered for the clamping and fixing of some special parts.

At present, the commonly used centering and clamping device adopts an additional drive device on both sides, which drives the clamping plates on both sides through two power sources, and completes the centering and clamping of the workpiece by working together. However, the above-mentioned device has the following problems: : 1. Using two power sources, on the one hand, the cost is high, the maintenance cost in the later period is also high, and on the other hand, the space occupied is also large; The problem of delay in the motion of the power source, thus affecting the processing quality.

Therefore, it is particularly important to develop a simple and efficient centering and clamping device.

SUMMARY OF THE INVENTION

The main purpose of the utility model is to provide a centering clamping device with low cost, small occupied space and good centering precision.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is: a centering clamping device, comprising a base plate, a first clamping plate and a second clamping plate, the first clamping plate and the first clamping plate. Two clamping plates are respectively movably arranged on both sides of the base plate, the centering clamping device further includes a first cylinder and a linkage mechanism, the first cylinder is horizontally fixed on the base plate, and Located between the first clamping plate and the second clamping plate, the piston rod of the first cylinder is fixed with the first clamping plate or the second clamping plate , the linkage mechanism is connected between the first clamping plate and the second clamping plate, and is used to control the first clamping plate and the second clamping plate at the same time near or far away.

The linkage mechanism includes a rotating shaft, a rotating rod, a first connecting rod and a second connecting rod. The rotating shaft is rotatably arranged on the base plate, and the rotating rod is fixed on the upper end of the rotating shaft. The lower end of the first clamping plate is fixed with a first fixing seat, the lower end of the second clamping plate is fixed with a second fixing seat, and one end of the first connecting rod is hinged to the first fixing seat On the seat, the other end of the first link is hinged to one end of the rotating rod, one end of the second link is hinged to the second fixed seat, and the second link The other end of the connecting rod is hinged on the other end of the connecting rod. In this structure, the rotating rod is horizontally rotatable on the base plate through the rotating shaft, the piston rod of the first cylinder is fixed to the inner side of the first clamping plate, and when the first cylinder drives the first clamping plate to move inward, the With the action of a connecting rod, the rotating rod is forced to rotate clockwise, so that the rotating rod is in a state of being horizontal with the first clamping plate or the second clamping plate, and the other end of the rotating rod pulls the second clamping plate through the second connecting rod. The plate is close to the first clamping plate, so as to achieve the purpose of clamping, and when the first air cylinder pushes the first clamping plate outward, the rotating rod is forced to rotate counterclockwise, and the other end of the rotating rod pushes the first clamping plate through the second connecting rod. The second clamping plate moves outward to achieve the purpose of loosening.

A first guiding mechanism is arranged between the first clamping plate and the base plate, and the first guiding mechanism includes two first sliding blocks fixed on the first clamping plate and two A first sliding rail fixed on the base plate, and the first sliding block can be slidably arranged on the corresponding first sliding rail. In this structure, the cooperation between the first sliding block and the first sliding rail is adopted, so that the first clamping plate moves relatively smoothly and is not easily displaced.

A second guiding mechanism is arranged between the second clamping plate and the base plate, and the second guiding mechanism includes two second sliding blocks and two second sliding blocks fixed on the second clamping plate. A second sliding rail fixed on the base plate, the second sliding block can be slidably arranged on the corresponding second sliding rail. In this structure, the cooperation of the second sliding block and the second sliding rail is adopted, so that the movement of the second clamping plate is relatively smooth, and the displacement is not easy.

The lower end of the rotating shaft is coaxially fixed with a bearing, and the outer ring of the bearing is fixed on the base plate. In this structure, the lower end of the rotating shaft is connected with the base plate through a bearing, which makes the rotating shaft rotate more smoothly. In addition, the upper part of the rotating shaft is arranged in a special shape, and the fixing between the rotating shaft and the rotating rod is more reliable compared with the traditional circular setting.

The centering and clamping device further includes a frame, and a pushing mechanism for pushing the base plate to move horizontally and laterally is arranged on the frame. In this structure, the setting of the pushing mechanism facilitates the horizontal movement of the substrate from left to right, thereby facilitating subsequent processing.

A third guiding mechanism is arranged between the base plate and the frame, the pushing mechanism includes a second air cylinder, the second air cylinder is fixed on the frame, and the second air cylinder is The piston rod of the cylinder is fixed with one side of the base plate. In this structure, the setting of the third mechanism enables the substrate to slide relative to the frame under force, and the second air cylinder is fixed on the frame. Since the second air cylinder and the substrate are fixed, when the second air cylinder moves, it drives the substrate to move, thereby making the workpiece move. Move to the area that needs to be processed, and use the cylinder control, the control is precise and smooth.

The third guide mechanism includes a third sliding block fixed on the lower end of the base plate and a third sliding rail fixed on the upper end of the frame, and the third sliding block can be slidably arranged on the first on three rails. In this structure, the cooperation of the third sliding block and the third sliding rail is adopted, so that the movement of the substrate is relatively smooth, and the displacement is not easy.

The first clamping plate is provided with a plurality of first weight reduction holes, and the second clamping plate is provided with a plurality of second weight reduction holes. In this structure, the arrangement of the first weight-reduction hole and the second weight-reduction hole reduces the weight without affecting the overall strength, which is conducive to fast clamping.

The left and right sides of the middle part of the base plate are respectively extended upward to fix the limited seats. In this structure, the limiting seat is used to prevent the first clamping plate and the second clamping plate from being too close to avoid clamping damage to the workpiece.

Compared with the prior art, the advantage of the present invention lies in that the first cylinder is arranged between the first clamping plate and the second clamping plate, and the space between the first clamping plate and the second clamping plate is effectively utilized. space, thus saving the occupied space. In addition, the first air cylinder is used to directly drive the first clamping plate or the second clamping plate, which has a faster response speed, no dead center position, and more reliable clamping; the setting of the linkage mechanism It is used to drive the first clamping plate and the second clamping plate to approach or move away at the same time after receiving force, so as to realize the purpose of clamping or loosening the workpiece; the device can realize the first clamping plate and the second clamping plate by using one power source. The effect of the simultaneous linkage of the clamping plates is low in cost, small in space and good in alignment accuracy.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram when the utility model works;

Fig. 2 is the three-dimensional structure schematic diagram when the utility model cooperates with the frame;

Fig. 3 is the three-dimensional structure schematic diagram one of the present utility model;

Fig. 4 is the three-dimensional structure schematic diagram two of the present utility model;

Figure 5 is a top view of the present invention.

Detailed ways

The invention will be described in further detail below with reference to the embodiments of the accompanying drawings.

Embodiment 1: As shown in the figure, a centering clamping device includes a base plate 1, a first clamping plate 2 and a second clamping plate 3. The first clamping plate 2 and the second clamping plate 3 can be respectively The movement is arranged on both sides of the base plate 1. The centering and clamping device also includes a first cylinder 4 and a linkage mechanism 5. The first cylinder 4 is horizontally fixed on the base plate 1 and is located between the first clamping plate 2 and the second clamping plate. 3, the piston rod of the first cylinder 4 is fixed with the first clamping plate 2, and the linkage mechanism 5 is connected between the first clamping plate 2 and the second clamping plate 3, and is used to control the first clamping plate 2. The plate 2 and the second clamping plate 3 are approached or moved away at the same time.

Embodiment 2: As shown in the figure, other structures are the same as Embodiment 1, the difference is that the linkage mechanism 5 includes a rotating shaft 51, a rotating rod 52, a first connecting rod 53 and a second connecting rod 54, and the rotating shaft 51 can rotate Set on the base plate 1, the rotating rod 52 is fixed on the upper end of the rotating shaft 51, the first fixing seat 21 is fixed on the lower end of the first clamping plate 2, the second fixing seat 31 is fixed on the lower end of the second clamping plate 3, One end of the connecting rod 53 is hinged on the first fixed seat 21, the other end of the first connecting rod 53 is hinged on one end of the rotating rod 52, one end of the second connecting rod 54 is hinged on the second fixed seat 31, and the second connecting rod 54 is hinged on the second fixed seat 31. The other end of 54 is hinged to the other end of the connecting rod. In this structure, the rotating rod 52 is horizontally rotatable on the base plate 1 through the rotating shaft 51 , the piston rod of the first cylinder 4 is fixed to the inner side of the first clamping plate 2 , and when the first cylinder 4 drives the first clamping plate 2 When moving inward, through the action of the first link 53, the rotating rod 52 is forced to rotate clockwise, so that the rotating rod 52 is in a state of being horizontal with the first clamping plate 2 or the second clamping plate 3, and the rotating rod 52 is in a state of being horizontal. The other end pulls the second clamping plate 3 close to the first clamping plate 2 through the second connecting rod 54, so as to achieve the purpose of clamping, and when the first air cylinder 4 pushes the first clamping plate 2 outward, the rotating rod 52 is forced to rotate counterclockwise, and the other end of the rotating rod 52 pushes the second clamping plate 3 to move outward through the second connecting rod 54 to achieve the purpose of loosening.

In this device, the first air cylinder 4 is arranged between the first clamping plate 2 and the second clamping plate 3, which effectively utilizes the space between the first clamping plate 2 and the second clamping plate 3, so that no additional space is occupied. Space, in this embodiment, the piston rod of the first cylinder 4 is directly fixed with the first clamping plate 2, and the first clamping plate 2 is directly driven, and then the second clamping plate 3 is driven to move through the linkage mechanism 5, and the corresponding The speed is faster. Compared with the method of driving the rotating shaft 51, the above solution can make it difficult to loosen the workpiece after clamping, and the clamping effect is better.

A first guide mechanism is arranged between the first clamping plate 2 and the base plate 1 , and the first guiding mechanism includes two first sliding blocks 22 fixed on the first clamping plate 2 and two first sliding blocks 22 fixed on the base plate 1 . A slide rail 11 , and the first sliding block 22 is slidably disposed on the corresponding first slide rail 11 . In this structure, the cooperation between the first sliding block 22 and the first sliding rail 11 is adopted, so that the movement of the first clamping plate 2 is relatively smooth, and the displacement is not easy.

A second guiding mechanism is provided between the second clamping plate 3 and the base plate 1 , and the second guiding mechanism includes two second sliding blocks 32 fixed on the second clamping plate 3 and two first sliding blocks 32 fixed on the base plate 1 . Two sliding rails 12 , and the second sliding block 32 is slidably disposed on the corresponding second sliding rail 12 . In this structure, the cooperation between the second sliding block 32 and the second sliding rail 12 is adopted, thereby making the movement of the second clamping plate 3 smoother and less prone to dislocation.

A bearing 55 is coaxially fixed to the lower end of the rotating shaft 51 , and the outer ring of the bearing 55 is fixed on the base plate 1 . In this structure, the lower end of the rotating shaft 51 is connected with the base plate 1 through the bearing 55, which makes the rotating shaft 51 rotate more smoothly. In addition, the upper part of the rotating shaft 51 is arranged in a special shape. Compared with the traditional circular setting, the rotating shaft 51 and the rotating rod 52 The fixation between them is more reliable.

Embodiment 3: As shown in the figure, other structures are the same as Embodiment 2, the difference is that the centering and clamping device also includes a frame 6, and a frame 6 is provided on the frame 6 for pushing the horizontal and lateral displacement of the substrate 1. Push Mechanism 7. In this structure, the setting of the pushing mechanism 7 facilitates the horizontal movement of the substrate 1, thereby facilitating subsequent processing.

A third guide mechanism is arranged between the base plate 1 and the frame 6 , the pushing mechanism 7 includes a second air cylinder 71 , the second air cylinder 71 is fixed on the frame 6 , and the piston rod of the second air cylinder 71 is in contact with one side of the base plate 1 . fixed. In this structure, the setting of the third mechanism enables the base plate 1 to slide relative to the frame 6 under force, and the second air cylinder 71 is fixed on the frame 6. Since the second air cylinder 71 and the base plate 1 are fixed, when the second air cylinder 71 moves, The base plate 1 is driven to move, so that the workpiece is moved to the area to be processed, and the cylinder is controlled, and the control is precise and stable.

The third guide mechanism includes a third sliding block 13 fixed on the lower end of the base plate 1 and a third sliding rail 61 fixed on the upper end of the frame 6 . The third sliding block 13 is slidably arranged on the third sliding rail 61 . In this structure, the cooperation between the third sliding block 13 and the third sliding rail 61 is adopted, thereby making the movement of the substrate 1 smoother and less prone to dislocation.

The first clamping plate 2 is provided with a plurality of first weight reduction holes 23 , and the second clamping plate 3 is formed with a plurality of second weight reduction holes 33 . In this structure, the arrangement of the first weight-reducing hole 23 and the second weight-reducing hole 33 reduces the weight without affecting the overall strength, which is conducive to fast clamping.

The left and right sides of the middle portion of the base plate 1 are respectively extended upward to fix the limiting seats 14 .

Claims (10)

1. The utility model provides a centering clamping device, includes base plate, first clamp plate and second clamp plate, first clamp plate with the second clamp plate respectively portable setting in the both sides of base plate which characterized in that: the centering and clamping device further comprises a first air cylinder and a linkage mechanism, the first air cylinder is horizontally fixed on the base plate and is located between the first clamping plate and the second clamping plate, a piston rod of the first air cylinder is fixed with the first clamping plate or the second clamping plate, and the linkage mechanism is connected between the first clamping plate and the second clamping plate and is used for controlling the first clamping plate and the second clamping plate to be close to or far away from each other simultaneously.

2. A centering and clamping device, as claimed in claim 1, wherein: the linkage mechanism comprises a rotating shaft, a rotating rod, a first connecting rod and a second connecting rod, wherein the rotating shaft is rotatably arranged on the base plate, the rotating rod is fixed at the upper end of the rotating shaft, a first fixing seat is fixed at the lower end of the first clamping plate, a second fixing seat is fixed at the lower end of the second clamping plate, one end of the first connecting rod is hinged to the first fixing seat, the other end of the first connecting rod is hinged to one end of the rotating rod, one end of the second connecting rod is hinged to the second fixing seat, and the other end of the second connecting rod is hinged to the other end of the connecting rod.

3. A centering and clamping device, as claimed in claim 1 or 2, characterized in that: the first clamping plate and the base plate are provided with a first guide mechanism between, the first guide mechanism comprises two first sliding blocks fixed on the first clamping plate and two first sliding rails fixed on the base plate, and the first sliding blocks can be slidably arranged on the corresponding first sliding rails.

4. A centering and clamping device, as claimed in claim 1 or 2, characterized in that: and a second guide mechanism is arranged between the second clamping plate and the substrate and comprises two second sliding blocks fixed on the second clamping plate and two second sliding rails fixed on the substrate, and the second sliding blocks can be slidably arranged on the second sliding rails correspondingly.

5. A centering and clamping device, as claimed in claim 2, wherein: the lower end of the rotating shaft is coaxially fixed with a bearing, and the outer ring of the bearing is fixed on the substrate.

6. A centering and clamping device, as claimed in claim 1, wherein: the centering and clamping device further comprises a rack, and a pushing mechanism for pushing the substrate to horizontally and transversely displace is arranged on the rack.

7. A centering and clamping device, according to claim 6, characterized in that: the base plate with the frame between be provided with third guiding mechanism, pushing mechanism include the second cylinder, the second cylinder fix the frame on, just the piston rod of second cylinder with one side of base plate fixed mutually.

8. A centering and clamping device, as claimed in claim 7, wherein: the third guide mechanism comprises a third sliding block fixed at the lower end of the base plate and a third sliding rail fixed at the upper end of the rack, and the third sliding block can be slidably arranged on the third sliding rail.

9. A centering and clamping device, as claimed in claim 1, wherein: the first clamping plate is provided with a plurality of first lightening holes, and the second clamping plate is provided with a plurality of second lightening holes.

10. A centering and clamping device, as claimed in claim 1, wherein: the left side and the right side of the middle part of the substrate respectively extend upwards to be fixed with a limiting seat.

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