Electrical automatic centering clamp

Abstract

The utility model discloses an electrical automation centering clamp which comprises a base, an adjusting mechanism, a clamping mechanism and a control mechanism. A cross-shaped cavity is formed in the top of the base, the adjusting mechanism comprises a first two-way screw and a second two-way screw which are rotationally arranged in the cavity, the second two-way screw is located below the first two-way screw, the second two-way screw and the first two-way screw are perpendicular to each other, and a motor is fixedly installed on one side of the base. The sensor senses an object and transmits a signal to the controller through the wire, the adjusting mechanism drives the limiting seat to drive the moving seat to enable the clamping block to make contact with the object until pressure detected by the pressure sensor is stable and transmits the signal to the controller, the motor is controlled to stop working, and four-direction synchronous clamping is conducted. And the clamping device can be suitable for clamping objects in different shapes, manual operation is not needed, use is convenient, the automation degree is high, and the requirement for automation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical automation fixtures, and more specifically to an electrical automation centering fixture. Background Art

[0002] Electrical automation is closely related to people's lives and industrial production. With the development of science and technology and the progress of the times, it has become an important part of the high-tech industry and is widely used in industry, agriculture, national defense and other technical fields. It plays an increasingly important role in the national economy. Among them, fixtures are well-known and widely used in the manufacturing industry. For example, in the process of stamping, riveting, welding, turning holes, pasting or solidification of workpieces, it is often necessary to maintain the correct position relationship. The clamping device has various reference surfaces or points to enable the workpiece to be accurately positioned. Therefore, the clamping device is considered to be an indispensable component in the processing industry.

[0003] After searching, the patent document with authorization announcement number CN208584430U discloses an electrical automation clamp, including a block, a movable plate, a slide groove and a base. By setting a turning handle, the effect of facilitating the rotation of the threaded column is achieved, so that the threaded hole opened by the slider at the bottom of the movable plate can slide in the corresponding direction as the threaded column rotates, thereby clamping and fixing the workpiece through the clamping block.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: the staff is required to turn the handle to make the turntable drive the threaded column to rotate and drive the slider to move, so as to achieve the effect of clamping and releasing the workpiece. Manual operation is inconvenient to use, the work efficiency is low, and it cannot meet the automation requirements. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide an electrical automation centering fixture.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] An electrical automation centering fixture comprises a base, an adjusting mechanism, a clamping mechanism and a control mechanism.

[0008] A cross-shaped cavity is provided on the top of the base, the adjusting mechanism includes a first bidirectional screw and a second bidirectional screw rotatably arranged in the cavity, the second bidirectional screw is located below the first bidirectional screw and the two are arranged perpendicular to each other, a motor is fixedly installed on one side of the base, the output shaft of the motor is connected to one end of the first bidirectional screw, a worm is fixedly sleeved on the middle section of the outer wall of the first bidirectional screw, and a worm wheel meshing with the worm is fixedly sleeved on the middle section of the outer wall of the second bidirectional screw; the clamping includes a moving seat and a clamping block, the moving seat moves under the drive of the adjusting mechanism, the clamping block is located on the inner side of the moving seat and follows the movement of the moving seat to clamp; the control mechanism includes a controller and a sensor, a mounting plate is fixedly connected to the center position of the cavity, the sensor is embedded and installed on the top of the mounting plate, the controller is fixedly installed on the front side of the base, and the controller is electrically connected to the sensor and the motor through wires.

[0009] As a further description of the above technical solution: the clamping block is a hollow component, a through hole is opened on the side of the clamping block facing the center of the base, an elastic mechanism is installed inside the clamping block, a pressure sensor passing through the through hole is installed on the end face of the elastic mechanism, a cylinder is fixedly installed on the movable seat, and the movable end of the cylinder is fixedly connected to one side of the clamping block.

[0010] As a further description of the above technical solution: the elastic mechanism includes a cylinder fixedly connected to the inner bottom wall of the clamping block, a slip ring slidably arranged inside the cylinder, a connecting rod fixedly connected to the inner ring of the slip ring, and a spring fixedly connected between one end of the connecting rod and the inner wall of the cylinder. The pressure sensor is fixedly installed at the end of the connecting rod away from the slip ring.

[0011] As a further description of the above technical solution: the input end of the controller is electrically connected to the pressure sensor and the inductor through wires, and the output end of the controller is electrically connected to the motor and the cylinder through wires.

[0012] As a further description of the above technical solution: both ends of the first bidirectional screw are threadedly connected with a first screw sleeve, and both ends of the second bidirectional screw are threadedly connected with a second screw sleeve.

[0013] As a further description of the above technical solution: the tops of the two first screw sleeves and the two second screw sleeves are fixedly connected to the limiting seat, and the top of the limiting seat is fixedly connected to the bottom of the moving seat.

[0014] As a further description of the above technical solution: the limit seat is an inverted "convex" shape, and a plurality of limit grooves connected to the cavity are opened on the top of the base. The cross-sectional shapes of the limit grooves and the cavity are adapted to the limit seat, and the limit seat slides along the limit grooves.

[0015] As a further description of the above technical solution: a sliding groove is provided on the side of the movable seat, a sliding block is fixedly connected to the side of the clamping block, and the sliding block is slidably matched with the sliding groove.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The sensor senses the object and transmits the signal to the controller through the wire. The controller enables the adjustment mechanism to drive the limit seat to drive the moving seat to make the clamp contact the object. The pressure sensor contacts the object before the clamp contacts the object. In the process from the pressure sensor contacting the object to the clamp clamping the object, the pressure detected by the pressure sensor is unstable. Until the clamp clamps the object, the elastic force of the spring pushes the pressure sensor to make it contact with the object and no longer move. At this time, the pressure detected by the pressure sensor is stable and the signal is transmitted to the controller, which controls the motor to stop working and perform four-way synchronous clamping. No manual operation is required. It is easy to use and has a high degree of automation, meeting the needs of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a front cross-sectional structural schematic diagram of the utility model as a whole;

[0020] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model as a whole;

[0023] Figure 6 For this utility model Figure 5 The enlarged schematic diagram at C in the middle;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the clamping mechanism of the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Base; 2. Cavity; 21. Limiting groove; 3. Adjusting mechanism; 31. First bidirectional screw; 32. Second bidirectional screw; 33. Motor; 34. Worm; 35. Worm wheel; 36. First screw sleeve; 37. Second screw sleeve; 38. Limiting seat; 4. Clamping mechanism; 41. Moving seat; 42. Clamping block; 43. Through hole; 44. Elastic mechanism; 441. Cylinder; 442. Slip ring; 443. Connecting rod; 444. Spring; 45. Pressure sensor; 46. Cylinder; 47. Slide groove; 48. Slider; 5. Controller; 6. Sensor; 7. Mounting plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0028] See also Figures 1 to 6 In the utility model, an electrical automation centering fixture comprises:

[0029] A base 1, the top of which is provided with a cross-shaped cavity 2;

[0030] The adjusting mechanism 3 includes a first bidirectional screw 31 and a second bidirectional screw 32 rotatably arranged in the cavity 2, the second bidirectional screw 32 is located below the first bidirectional screw 31 and the two are arranged perpendicular to each other, a motor 33 is fixedly installed on one side of the base 1, the output shaft of the motor 33 is connected to one end of the first bidirectional screw 31, a worm 34 is fixedly sleeved in the middle section of the outer wall of the first bidirectional screw 31, and a worm wheel 35 meshing with the worm 34 is fixedly sleeved in the middle section of the outer wall of the second bidirectional screw 32;

[0031] The clamping mechanism 4 includes a moving seat 41 and a clamping block 42. The moving seat 41 moves under the drive of the adjusting mechanism 3. The clamping block 42 is located on the inner side of the moving seat 41 and moves with the moving seat 41 to clamp.

[0032] The control mechanism includes a controller 5 and a sensor 6. A mounting plate 7 is fixedly connected to the center of the cavity 2. The sensor 6 is embedded and installed on the top of the mounting plate 7. The controller 5 is fixedly installed on the front side of the base 1. The controller 5 is electrically connected to the sensor 6 and the motor 33 through wires.

[0033] In this embodiment, preferably, the clamping block 42 is a hollow component, a through hole 43 is opened on one side of the clamping block 42 facing the center of the base 1, an elastic mechanism 44 is installed inside the clamping block 42, a pressure sensor 45 passing through the through hole 43 is installed on the end face of the elastic mechanism 44, and a cylinder 46 is fixedly installed on the movable seat 41, and the movable end of the cylinder 46 is fixedly connected to one side of the clamping block 42.

[0034] In this embodiment, preferably, the elastic mechanism 44 includes a cylinder 441 fixedly connected to the inner bottom wall of the clamping block 42, a slip ring 442 slidably arranged inside the cylinder 441, a connecting rod 443 fixedly connected to the inner ring of the slip ring 442, and a spring 444 fixedly connected between one end of the connecting rod 443 and the inner wall of the cylinder 441. The pressure sensor 45 is fixedly installed at one end of the connecting rod 443 away from the slip ring 442.

[0035] In this embodiment, preferably, the input end of the controller 5 is electrically connected to the pressure sensor 45 and the inductor 6 respectively through wires, and the output end of the controller 5 is electrically connected to the motor 33 and the cylinder 46 respectively through wires.

[0036] In this embodiment, preferably, both ends of the first bidirectional screw 31 are threadedly connected to the first screw sleeve 36 , and both ends of the second bidirectional screw 32 are threadedly connected to the second screw sleeve 37 .

[0037] In this embodiment, preferably, the tops of the two first screw sleeves 36 and the two second screw sleeves 37 are fixedly connected to the limiting seat 38 , and the top of the limiting seat 38 is fixedly connected to the bottom of the moving seat 41 .

[0038] In this embodiment, preferably, the limit seat 38 is an inverted "convex" shape, and a plurality of limit grooves 21 connected to the cavity 2 are opened on the top of the base 1. The cross-sectional shapes of the limit grooves 21 and the cavity 2 are adapted to the limit seat 38, and the limit seat 38 slides along the limit grooves 21.

[0039] In this embodiment, preferably, a slide groove 47 is opened on the side of the movable seat 41, and a slider 48 is fixedly connected to the side of the clamping block 42. The slider 48 slides in cooperation with the slide groove 47. When the cylinder 46 drives the clamping block 42 to move, the slider 48 can move along the slide groove 47 to make the movement stable.

[0040] The working principle and use process of this utility model:

[0041] 1. When an object needs to be clamped, the cylinder 46 is in a fully retracted state, and the object is placed on the sensor 6 in the middle of the base 1. The sensor 6 senses the object and transmits the signal to the controller 5 through the wire. The controller 5 turns on the motor 33 to drive the first bidirectional screw 31 to rotate;

[0042] 2. When the first bidirectional screw 31 rotates, the worm 34 at the middle position thereof rotates accordingly, and the worm 34 synchronously drives the worm wheel 35 to drive the second bidirectional screw 32 to rotate. The first bidirectional screw 31 and the second bidirectional screw 32 rotate synchronously and drive the first screw sleeve 36 and the second screw sleeve 37 through thread transmission. The two first screw sleeves 36 move toward each other, the two second screw sleeves 37 move toward each other, and the moving seat 41 is driven by the limiting seat 38 to make the clamping block 42 contact the object, so as to perform four-way synchronous clamping;

[0043] 3. Before the clamp 42 contacts the object, the pressure sensor 45 contacts the object in advance. During the process from the pressure sensor 45 contacting the object to the clamp 42 clamping the object, the pressure detected by the pressure sensor 45 is unstable. Until the clamp 42 clamps the object, the elastic force of the spring 444 pushes the pressure sensor 45 to make it contact with the object and no longer move. At this time, the pressure detected by the pressure sensor 45 is stable and the signal is transmitted to the controller 5, which controls the motor 33 to stop working, thereby completing the centering clamping of the object.

[0044] It does not require manual operation, is easy to use and has a high degree of automation, meeting the needs for automation.

[0045] The above process can clamp rectangular or round objects. When the object to be clamped is in the shape of a rectangle, etc., taking a rectangular object as an example, the rectangular object is placed on the sensor 6 in the middle position of the base 1 so that its longer side is placed horizontally. The above steps 1 and 2 are automatically completed under the control of the controller 5. The difference is that when the first bidirectional screw 31 drives the first screw sleeve 36 to drive the moving seat 41 through the limit seat 38 to make the clamping block 42 contact the two sides of the rectangular object, the clamping block 42 located on the second screw sleeve 37 does not contact the object. At this time, the detection value of the corresponding pressure sensor 45 is zero, and the pressure sensor 45 in contact with the object has a stable value. At this time, the controller 5 drives the cylinder 46 at the corresponding position to extend, and pushes the clamping block 42 at the corresponding position to move to clamp the object until the values ​​detected by multiple pressure sensors 45 tend to be stable and stop working, thereby achieving the clamping of objects of different shapes, without the need to frequently replace the clamp, thereby improving versatility.

[0046] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0047] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An electrical automation centering fixture, characterized in that: include: A base (1), wherein a cross-shaped cavity (2) is formed on the top of the base (1); An adjusting mechanism (3), the adjusting mechanism (3) comprising a first bidirectional screw (31) and a second bidirectional screw (32) rotatably arranged in the cavity (2), the second bidirectional screw (32) being located below the first bidirectional screw (31) and the two being arranged perpendicular to each other, a motor (33) being fixedly mounted on one side of the base (1), the output shaft of the motor (33) being connected to one end of the first bidirectional screw (31), a worm (34) being fixedly sleeved on the middle section of the outer wall of the first bidirectional screw (31), and a worm wheel (35) meshing with the worm (34) being fixedly sleeved on the middle section of the outer wall of the second bidirectional screw (32); A clamping mechanism (4), the clamping comprising a movable seat (41) and a clamping block (42), the movable seat (41) moves under the drive of the adjustment mechanism (3), and the clamping block (42) is located on the inner side of the movable seat (41) and moves with the movable seat (41) to clamp; A control mechanism, the control mechanism comprising a controller (5) and a sensor (6), a mounting plate (7) fixedly connected to the center of the cavity (2), the sensor (6) embedded in the top of the mounting plate (7), the controller (5) fixedly mounted on the front of the base (1), and the controller (5) electrically connected to the sensor (6) and the motor (33) via a wire.

2. The electrical automation centering fixture according to claim 1, characterized in that: The clamping block (42) is a hollow component. A through hole (43) is provided on one side of the clamping block (42) facing the center of the base (1). An elastic mechanism (44) is installed inside the clamping block (42). A pressure sensor (45) passing through the through hole (43) is installed on the end surface of the elastic mechanism (44). A cylinder (46) is fixedly installed on the movable seat (41), and a movable end of the cylinder (46) is fixedly connected to one side of the clamping block (42).

3. The electrical automation centering fixture according to claim 2, characterized in that: The elastic mechanism (44) comprises a cylinder (441) fixedly connected to the inner bottom wall of the clamping block (42), a slip ring (442) slidably arranged inside the cylinder (441), a connecting rod (443) fixedly connected to the inner ring of the slip ring (442), and a spring (444) fixedly connected between one end of the connecting rod (443) and the inner wall of the cylinder (441); the pressure sensor (45) is fixedly mounted on one end of the connecting rod (443) away from the slip ring (442).

4. The electrical automation centering fixture according to claim 3, characterized in that: The input end of the controller (5) is electrically connected to the pressure sensor (45) and the inductor (6) through wires, and the output end of the controller (5) is electrically connected to the motor (33) and the cylinder (46) through wires.

5. The electrical automation centering fixture according to claim 1, characterized in that: Both ends of the first bidirectional screw (31) are threadedly connected to first screw sleeves (36), and both ends of the second bidirectional screw (32) are threadedly connected to second screw sleeves (37). The tops of the two first screw sleeves (36) and the two second screw sleeves (37) are fixedly connected to a limiting seat (38), and the top of the limiting seat (38) is fixedly connected to the bottom of the movable seat (41).

6. The electrical automation centering fixture according to claim 5, characterized in that: The limiting seat (38) is in the shape of an inverted "convex" character. The top of the base (1) is provided with a plurality of limiting grooves (21) connected to the cavity (2). The cross-sectional shapes of the limiting grooves (21) and the cavity (2) are adapted to the limiting seat (38). The limiting seat (38) slides along the limiting grooves (21).

7. The electrical automation centering fixture according to claim 1, characterized in that: A sliding groove (47) is provided on the side of the movable seat (41), and a sliding block (48) is fixedly connected to the side of the clamping block (42), and the sliding block (48) is slidably matched with the sliding groove (47).

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