Automatic clamping device

Abstract

The utility model discloses an automatic clamping device which comprises a machine frame, the machine frame is of a rectangular frame structure, a bidirectional lead screw is arranged in the middle of the machine frame, the bidirectional lead screw is rotationally connected with the machine frame, a driving mechanism is arranged at one end of the bidirectional lead screw and can drive the bidirectional lead screw to rotate, two sliding blocks are symmetrically arranged on the bidirectional lead screw, and the two sliding blocks are driven by the driving mechanism to slide on the machine frame. The two sliding blocks can move towards each other or away from each other; corresponding clamping parts are arranged at the lower ends of the two sliding blocks, and the two clamping parts are oppositely arranged; the clamping parts are driven by the driving motor to clamp an object, the clamping plates of the clamping parts are cloth clamping rubber plates, the friction coefficient is large, the anti-skid and stabilizing functions are achieved, the stability of the object to be clamped is effectively guaranteed by combining the adsorption force of the adsorption mechanism, and the clamping parts can be used for clamping the object to be clamped. And the safety of clamping work is greatly improved.

Description

Technical Field

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

[0002] Mechanical grippers are often used in the production and processing process. The mechanical grippers in the existing technology are mostly mechanical grippers inside the connecting rod. When clamping objects, since the grippers are made of metal, they often have a hard-on effect when in contact with the objects, causing the grippers to easily damage the clamped objects. Moreover, since the contact surface of the grippers is smooth and the friction is small, it is easy to cause loose clamping, and even the objects may shake during the clamping process, seriously affecting safety.

[0003] In order to solve the above problems, an automatic clamping device is proposed. Summary of the Invention

[0004] The purpose of the present utility model is to solve the above problems and provide an automatic clamping device.

[0005] The specific solution of the utility model is: an automatic clamping device, comprising: a frame, the frame is a rectangular frame structure, a bidirectional screw rod is provided in the middle of the frame, the bidirectional screw rod is rotatably connected to the frame, one end of the bidirectional screw rod is provided with a driving mechanism, the driving mechanism can drive the bidirectional screw rod to rotate, two sliding blocks are symmetrically provided on the bidirectional screw rod, and under the drive of the driving mechanism, the two sliding blocks can move toward or away from each other; corresponding clamping parts are provided at the lower ends of the two sliding blocks, and the two clamping parts are arranged opposite to each other; an adsorption mechanism is provided between the two clamping parts, and the adsorption mechanism is used to form a negative pressure to adsorb the object to be transported.

[0006] Furthermore, the frame is provided with a guide mechanism, which includes: a guide column, the guide column is provided on both sides of the bidirectional screw rod, both ends of the guide column are fixedly connected to the frame, and the sliding block passes through the guide column and is slidably connected thereto.

[0007] Furthermore, the driving mechanism comprises:

[0008] A vertical plate, the vertical plate is vertically arranged on the upper surface of one end of the frame and is fixedly connected to the frame;

[0009] A driving motor is mounted on the vertical plate and is arranged horizontally with the driving screw;

[0010] A driving wheel, the driving wheel is arranged on the output shaft of the driving motor and is fixedly connected thereto;

[0011] A driven wheel, the driven wheel being provided at an end portion of a driving screw rod corresponding to the driving wheel;

[0012] A drive belt is sleeved on a driving wheel and a driven wheel.

[0013] Further, the adsorption mechanism comprises a shell fixedly arranged in the middle of the lower end of the frame, a negative pressure cavity arranged in the shell, a negative pressure pipeline arranged on the upper end of the shell, one end of the negative pressure pipeline being communicated with the negative pressure cavity and the other end being connected with an external air source, and an elastic rubber layer arranged on the lower end of the shell, the elastic rubber layer being provided with a negative pressure hole communicated with the negative pressure cavity.

[0014] Further, the clamping part comprises a clamping frame fixedly connected with the sliding block, and a clamping plate arranged on the inner side of the clamping frame and detachably fixedly connected with the clamping frame.

[0015] Further, the clamping plate is a cloth clamping rubber plate.

[0016] Further, the utility model also comprises a connecting seat fixedly arranged on the middle of the upper end of the frame.

[0017] The utility model has the advantages of simple structure and convenient use, the connecting seat is connected with an external lifting tool, the device is lifted to the upper side of an object to be clamped by the external lifting tool, slowly falls, when the elastic rubber layer of the adsorption mechanism contacts the object to be clamped, the negative pressure hole on the elastic rubber layer generates negative pressure through the external air source, the object to be clamped is adsorbed, and the object is clamped by the clamping part driven by the driving motor, so that the clamped object is firm and reliable, the clamping plate of the clamping part is a cloth clamping rubber plate, the friction coefficient is large, has the antiskid and stable function, the adsorption force of the adsorption mechanism is combined, the stability of the object to be clamped is effectively guaranteed, and the safety of the clamping work is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model;

[0019] Figure 2 It is a front view schematic view of the utility model;

[0020] Figure 3 It is a connection relationship schematic view of the sliding block, the bidirectional screw rod and the frame;

[0021] Figure 4 It is Figure 2 A-A sectional view schematic view of the utility model;

[0022] Figure 5 It is a three-dimensional structure schematic view of the adsorption mechanism;

[0023] Figure 6 It is a sectional view schematic view of the adsorption mechanism;

[0024] In the figure: 1. Frame; 2. Bidirectional screw; 3. Driving mechanism; 301. Driving motor; 302. Vertical plate; 303. Driving wheel; 304. Driven wheel; 305. Transmission belt; 4. Sliding block; 5. Clamping frame; 6. Clamping plate; 7. Adsorption mechanism; 701. Shell; 702. Negative pressure chamber; 703. Negative pressure pipe; 704. Elastic rubber layer; 705. Negative pressure hole; 8. Connecting seat; 9. Guide column. DETAILED DESCRIPTION

[0025] 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.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Please refer to Figures 1-6, An automatic clamping device comprises: a frame 1, the frame 1 is a rectangular frame structure, a bidirectional screw rod 2 is provided in the middle of the frame 1, the bidirectional screw rod 2 is rotatably connected to the frame 1, a driving mechanism 3 is provided at one end of the bidirectional screw rod 2, the driving mechanism 3 can drive the bidirectional screw rod 2 to rotate, two sliding blocks 4 are symmetrically provided on the bidirectional screw rod 2, and under the drive of the driving mechanism 3, the two sliding blocks 4 can move toward or away from each other; corresponding clamping parts are provided at the lower ends of the two sliding blocks 4, and the two clamping parts are arranged opposite to each other; an adsorption mechanism 7 is provided between the two clamping parts, and the adsorption mechanism 7 is used to form a negative pressure to adsorb the object to be transported.

[0029] In this embodiment, a guide mechanism is also provided on the frame 1, and the guide mechanism includes: a guide column 9, the guide column 9 is provided on both sides of the bidirectional screw rod 2, the two ends of the guide column 9 are fixedly connected to the frame 1, and the sliding block 4 passes through the guide column 9 and is slidably connected thereto.

[0030] In this embodiment, the driving mechanism 3 includes:

[0031] A vertical plate 302, the vertical plate 302 is vertically arranged on the upper surface of one end of the frame 1 and is fixedly connected to the frame 1;

[0032] A drive motor 301 is mounted on the vertical plate 302 and is arranged horizontally with the drive screw;

[0033] A driving wheel 303, which is disposed on the output shaft of the driving motor 301 and is fixedly connected thereto;

[0034] A driven wheel 304, which is provided at an end portion of the driving screw corresponding to the driving wheel 303;

[0035] The transmission belt 305 is sleeved on the driving wheel 303 and the driven wheel 304 .

[0036] In this embodiment, the adsorption mechanism 7 includes: a shell 701, the shell 701 is fixedly arranged at the middle part of the lower end of the frame 1, a negative pressure chamber 702 is provided inside the shell 701, a negative pressure pipe 703 is provided at the upper end of the shell 701, one end of the negative pressure pipe 703 is connected to the negative pressure chamber 702, and the other end is connected to an external air source, an elastic rubber layer 704 is provided at the lower end of the shell 701, a negative pressure hole 705 is provided on the elastic rubber layer 704, and the negative pressure hole 705 is connected to the negative pressure chamber 702.

[0037] In this embodiment, the clamping portion includes a clamping frame 5 , which is fixedly connected to the sliding block 4 . A clamping plate 6 is provided inside the clamping frame 5 , and the clamping plate 6 is detachably fixedly connected to the clamping frame 5 .

[0038] In this embodiment, the clamping plate 6 is a cloth-inserted rubber plate.

[0039] In this embodiment, the frame 1 further includes a connecting seat 8 , which is fixedly arranged at the middle of the upper end of the frame 1 .

[0040] The utility model has the following beneficial effects: the utility model has a simple structure and is easy to use. It is connected to an external sling through a connecting seat 8. The external sling is used to lift the device above the object to be clamped and slowly descend. When the elastic rubber layer 704 of the adsorption mechanism 7 contacts the object to be clamped, the negative pressure hole 705 on the elastic rubber layer 704 generates negative pressure through an external air source, which adsorbs the object to be clamped, and then drives the clamping part to clamp the object through the driving motor 301. In this way, the clamped object is firm and reliable, and the clamping plate 6 of the clamping part is a cloth-clamped rubber plate with a large friction coefficient, which has anti-slip and stabilizing functions. Combined with the adsorption force of the adsorption mechanism 7, the stability of the object to be clamped is effectively guaranteed, and the safety of the clamping work is greatly improved.

Claims

1. An automatic clamping device comprising: The frame is characterized in that: the frame is a rectangular frame structure, a bidirectional screw is provided in the middle of the frame, the bidirectional screw is rotatably connected to the frame, one end of the bidirectional screw is provided with a driving mechanism, the driving mechanism can drive the bidirectional screw to rotate, and two sliding blocks are symmetrically provided on the bidirectional screw, and under the drive of the driving mechanism, the two sliding blocks can move toward or away from each other; corresponding clamping parts are provided at the lower ends of the two sliding blocks, and the two clamping parts are arranged opposite to each other; an adsorption mechanism is provided between the two clamping parts, and the adsorption mechanism is used to form a negative pressure to adsorb the object to be transported.

2. The automatic clamping device according to claim 1, characterized in that: The frame is also provided with a guide mechanism, which includes: a guide column, the guide column is provided on both sides of the bidirectional screw rod, both ends of the guide column are fixedly connected to the frame, and the sliding block passes through the guide column and is slidably connected thereto.

3. The automatic clamping device according to claim 1, characterized in that: The driving mechanism includes: A vertical plate, the vertical plate is vertically arranged on the upper surface of one end of the frame and is fixedly connected to the frame; A driving motor is mounted on the vertical plate and is arranged horizontally with the driving screw; A driving wheel, the driving wheel is arranged on the output shaft of the driving motor and is fixedly connected thereto; A driven wheel, the driven wheel being provided at an end portion of a driving screw rod corresponding to the driving wheel; A transmission belt is sleeved on the driving wheel and the driven wheel.

4. The automatic clamping device according to claim 1, characterized in that: The adsorption mechanism includes: a shell, which is fixedly arranged at the middle part of the lower end of the frame, a negative pressure chamber is provided inside the shell, a negative pressure pipe is provided at the upper end of the shell, one end of the negative pressure pipe is connected to the negative pressure chamber, and the other end is connected to an external air source, an elastic rubber layer is provided at the lower end of the shell, a negative pressure hole is provided on the elastic rubber layer, and the negative pressure hole is connected to the negative pressure chamber.

5. The automatic clamping device according to claim 1, characterized in that: The clamping portion includes a clamping frame, the clamping frame is fixedly connected to the sliding block, a clamping plate is provided on the inner side of the clamping frame, and the clamping plate is detachably fixedly connected to the clamping frame.

6. The automatic clamping device according to claim 5, characterized in that: The clamping plate is a cloth-reinforced rubber plate.

7. The automatic clamping device according to claim 1, characterized in that: Also includes: The connecting seat is fixedly arranged at the middle part of the upper end of the frame.

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