Rotating clamping mechanism

Abstract

The utility model discloses a rotary clamping mechanism, which comprises: a movable bottom plate, a chuck seat mounted on the movable bottom plate, a clamping claw device arranged at the front end of the chuck seat, an inner push rod arranged in the chuck seat and used for pushing the clamping claw device to open and close the clamp, a cylinder arranged at the rear end of the chuck seat, a motor arranged beside the chuck seat, and a synchronous pulley group arranged between the motor and the chuck seat, wherein the inner push rod and the cylinder are connected by a movable connection device. The clamping claw device is installed on a rotatable chuck seat, the chuck seat is driven by the motor through the synchronous pulley group to drive the clamping claw device to rotate, and the cylinder drives the clamping claw device through the inner push rod to perform the opening and closing actions, and the cylinder is connected by the inner push rod through the movable connection device, so that the cylinder will not rotate with the rotation of the chuck seat, thereby realizing that the clamping claw device can automatically rotate 360 ​​degrees after clamping the material, and is not affected by the cylinder, and has a wide range of applications and strong versatility.

Description

Technical field:

[0001] The utility model relates to the field of automated production, in particular to a rotary clamping mechanism. Background technology:

[0002] In the process of automated production and processing, the transfer of parts often requires the use of transfer mechanisms such as robots. In the transfer mechanism, the clamping and rotation adjustment of parts are the most basic actions. For example: China's patent application number is 202022421763.7, which uses a cylinder to clamp the raw material and drive it to rotate. In the technical scheme disclosed in this patent, the cylinder 902 in the transmission mechanism 9 drives the clamping arm 5 to close and open the clamp, and the motor 11 drives the transmission mechanism 9 to rotate, so as to achieve the clamping and rotation of the raw material. However, in this scheme, since the cylinder 902 will rotate with the transmission mechanism 9, and the cylinder 902 needs to be connected to the air supply pipeline to work, this makes it impossible for the transmission mechanism 9 to rotate 360° freely, otherwise it will cause the pipeline to be entangled and broken, and the applicability is not strong. Secondly, the transmission mechanism 9 adopts a rack and pinion structure, which makes the mechanism complicated, requires frequent inspection and maintenance, and is prone to failure.

[0003] In view of this, the inventor proposes the following technical solution. Utility model content:

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a rotary clamping mechanism.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the rotary clamping mechanism comprises: a movable base plate, a chuck seat rotatably mounted on the movable base plate, a clamping jaw device arranged at the front end of the chuck seat, an inner push rod penetrating the chuck seat and used to push the clamping jaw device to open and close the clamp, a cylinder arranged at the rear end of the chuck seat and used to push the inner push rod to move, a motor arranged at the side of the chuck seat and used to drive the rotation thereof, and a synchronous pulley group arranged between the motor and the chuck seat, wherein a movable connection device capable of relative rotation is arranged between the inner push rod and the cylinder.

[0006] Furthermore, in the above technical solution, the movable connection device includes a groove block installed on the piston in the cylinder and a first bearing installed on the end of the inner push rod and capable of being clamped in the groove block.

[0007] Furthermore, in the above technical solution, the clamping jaw device includes a left-finger clamping jaw and a right-finger clamping jaw arranged at the front end of the clamping head seat, and a wire clamping positioning plate arranged at the end of the clamping head seat and located between the left-finger clamping jaw and the right-finger clamping jaw. The left-finger clamping jaw and the right-finger clamping jaw are driven by the inner push rod to simultaneously fit with both sides of the wire clamping positioning plate to clamp one or two wires.

[0008] Furthermore, in the above technical solution, the left finger clamp and the inner push rod are connected by a first hinge rod, the middle part of the first hinge rod is hinged to the chuck seat, and the left finger clamp and the inner push rod are respectively installed at the two ends of the first hinge rod; the right finger clamp and the inner push rod are connected by a second hinge rod, the middle part of the second hinge rod is hinged to the chuck seat, and the right finger clamp and the inner push rod are respectively installed at the two ends of the first hinge rod.

[0009] Furthermore, in the above technical solution, the first hinge rod and the second hinge rod are both L-shaped, and their parts are hingedly fixed in the chuck seat by the first pin and the second pin respectively, and the ends of the first hinge rod and the second hinge rod are hingedly connected to the inner push rod in an up and down staggered shape by the third pin.

[0010] Furthermore, in the above technical solution, the cross section of the inner push rod is T-shaped, and the front end of the inner push rod is provided with a positioning notch for the first hinge rod and the second hinge rod to be inserted alternately and for the third pin to pass through.

[0011] Furthermore, in the above technical solution, at least two sliding sleeves are provided on the inner push rod to slide on the inner sliding rod of the chuck seat, and the rear end of the inner push rod is connected to the movable connection device through a flange.

[0012] Furthermore, in the above technical solution, a nut cap for adjusting the limit is also provided on the chuck seat, a first vertical plate and a second vertical plate for supporting the chuck seat are provided on the movable bottom plate, and a limit plate for cooperating with the nut cap to limit the position is provided next to the first vertical plate.

[0013] Furthermore, in the above technical solution, the motor is installed on the second vertical plate, and a third vertical plate for supporting the cylinder is arranged behind the second vertical plate; the first vertical plate and the second vertical plate are respectively provided with a second bearing and a third bearing for supporting the chuck seat.

[0014] Furthermore, in the above technical solution, a sensor for detecting the number of rotations of the chuck seat is also provided on the movable bottom plate, the sensor is located between the first vertical plate and the second vertical plate, and an induction sheet matching the sensor is provided on the chuck seat.

[0015] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model adopts the method of installing the clamping device on a rotatable chuck seat, and the motor drives the chuck seat to drive the clamping device to rotate through a synchronous pulley set, and the cylinder drives the clamping device through an inner push rod to open and close the clamping action. By using a movable connection device to connect the inner push rod and the cylinder, the cylinder will not rotate with the rotation of the chuck seat, thereby realizing that the clamping device can automatically rotate 360° after clamping the material, and is not affected by the cylinder, with a wide range of applications and strong versatility. Secondly, the inner push rod is used to connect the cylinder and the clamping device through the chuck seat, which has a simple structure and strong standardized parts, which is convenient for processing, production and assembly, and greatly reduces the cost of the enterprise. At the same time, the structure has low loss and long service life, and does not require frequent maintenance and repair, saving time and effort. Description of the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection between the new middle clamping jaw device and the inner push rod of the utility model. Specific implementation method:

[0019] The utility model is further described below in conjunction with specific embodiments and drawings.

[0020] See Figure 1 and Figure 3As shown, a rotary clamping mechanism comprises: a movable base plate 1, a chuck seat 2 rotatably mounted on the movable base plate 1, a clamping jaw device 3 arranged at the front end of the chuck seat 2, an inner push rod 4 penetrating the chuck seat 2 and used for pushing the clamping jaw device 3 to open and close the clamp, a cylinder 5 arranged at the rear end of the chuck seat 2 and used for pushing the inner push rod 4 to move, a motor 6 arranged at the side of the chuck seat 2 and used for driving the rotation thereof, and a synchronous pulley set 7 arranged between the motor 6 and the chuck seat 2, and a movable connection device 8 capable of relative rotation is arranged between the inner push rod 4 and the cylinder 5. The clamping device 3 is installed on the rotatable chuck seat 2, and the motor 6 drives the chuck seat 2 to rotate the clamping device 3 through the synchronous pulley group 7, and the cylinder 5 drives the clamping device 3 to open and close the clamping through the inner push rod 4. The movable connection device 8 is used to connect the inner push rod 4 and the cylinder 5, so that the cylinder 5 will not rotate with the rotation of the chuck seat 2, thereby realizing that the clamping device 3 can automatically rotate 360° after clamping the material, and is not affected by the cylinder 5, with a wide range of applications and strong versatility. Secondly, the inner push rod 4 is used to connect the cylinder 5 and the clamping device 3 from the chuck seat 2, with a simple structure and strong standardization of parts, which is convenient for processing, production and assembly, greatly reducing enterprise costs. At the same time, the structure has low loss and long service life, and does not require frequent maintenance and repair, saving time and effort.

[0021] The movable connection device 8 includes a groove block 81 installed on the piston in the cylinder 5 and a first bearing 82 installed at the end of the inner push rod 4 and capable of being stuck in the groove block 81.

[0022] The clamping jaw device 3 includes a left-finger clamping jaw 31 and a right-finger clamping jaw 32 arranged at the front end of the clamping head seat 2, and a wire clamping positioning plate 33 arranged at the end of the clamping head seat 2 and located between the left-finger clamping jaw 31 and the right-finger clamping jaw 32. The left-finger clamping jaw 31 and the right-finger clamping jaw 32 are driven by the inner push rod 4 to simultaneously fit with both sides of the wire clamping positioning plate 33 to clamp one or two wires.

[0023] The left finger clamp 31 is connected to the inner push rod 4 through a first hinge rod 34, the middle part of which is hinged to the chuck seat 2, and the left finger clamp 31 and the inner push rod 4 are respectively mounted on the two ends of the first hinge rod 34; the right finger clamp 32 is connected to the inner push rod 4 through a second hinge rod 35, the middle part of which is hinged to the chuck seat 2, and the right finger clamp 32 and the inner push rod 4 are respectively mounted on the two ends of the first hinge rod 34. The first hinge rod 34 and the second hinge rod 35 are both L-shaped, and the middle parts thereof are hingedly fixed in the chuck seat 2 through the first pin 36 and the second pin 37, respectively, and the ends of the first hinge rod 34 and the second hinge rod 35 are hinged to the inner push rod 4 through the third pin 38 in an up-and-down staggered shape.

[0024] The cross section of the inner push rod 4 is T-shaped, and the front end of the inner push rod 4 is provided with a positioning notch 41 for the first hinge rod 34 and the second hinge rod 35 to be inserted alternately and for the third pin 38 to pass through. The inner push rod 4 is provided with at least two sliding sleeves 42 on the sliding rod inside the chuck seat 2, and the rear end of the inner push rod 4 is connected to the movable connection device 8 through a flange 43.

[0025] The chuck seat 2 is also provided with a nut cap 21 for adjusting the limit position, and the movable bottom plate 1 is provided with a first vertical plate 11 and a second vertical plate 12 for supporting the chuck seat 2, and a limit plate 13 for cooperating with the nut cap 21 is provided beside the first vertical plate 11. By providing the nut cap 21 on the chuck seat 2 for connection, and limiting the nut cap 21 through the first vertical plate 11 and the limit plate 13, and by using the nut cap 21 at different positions of the chuck seat 2, the extension distance of the chuck seat 2 can be adjusted.

[0026] The motor 6 is mounted on the second vertical plate 12, and a third vertical plate 14 for supporting the cylinder 5 is also arranged behind the second vertical plate 12; the first vertical plate 11 and the second vertical plate 12 are respectively provided with a second bearing 15 and a third bearing 16 for supporting the chuck seat 2. The movable bottom plate 1 is also provided with a sensor 9 for detecting the number of rotations of the chuck seat 2, and the sensor 9 is located between the first vertical plate 11 and the second vertical plate 12, and the chuck seat 2 is provided with a sensing sheet 91 matching the sensor 9.

[0027] In summary, when the utility model is working, the cylinder 5 drives the inner push rod 4 to move forward, and under the push of the inner push rod 4, the left finger clamping claw 31 and the right finger clamping claw 32 in the clamping claw device 3 swing to both sides and separate from the wire clamping positioning plate 33, forming two left and right clamping spaces; further, when the wire is located in the two clamping spaces, the cylinder 5 drives the inner push rod 4 to retreat, and under the push of the inner push rod 4, the left finger clamping claw 31 and the right finger clamping claw 32 in the clamping claw device 3 swing to the wire positioning plate 33 to fit together, so as to clamp the wire. Tight; further, when it is necessary to rotate and adjust the angle of the clamping jaw device 3, the motor 6 drives the chuck seat 2 to rotate through the synchronous pulley set 7. When the chuck seat 2 rotates, the clamping jaw device 3 swings to adjust the angle direction, and the inner push rod 4 also rotates with the chuck seat 2. At this time, due to the existence of the movable connection device 8, the first bearing 82 will rotate with the inner push rod 4 in the groove block 81, and will not drive the cylinder 5 to rotate, thereby ensuring that the clamping jaw device 3 can rotate 360° freely without being affected by the cylinder 5.

[0028] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A rotary clamping mechanism, characterized in that: include: A movable base plate (1), a chuck seat (2) rotatably mounted on the movable base plate (1), a clamping jaw device (3) arranged at the front end of the chuck seat (2), an inner push rod (4) penetrating the chuck seat (2) and used to push the clamping jaw device (3) to open and close the clamp, a cylinder (5) arranged at the rear end of the chuck seat (2) and used to push the inner push rod (4) to move, a motor (6) arranged on the side of the chuck seat (2) and used to drive the rotation thereof, and a synchronous pulley group (7) arranged between the motor (6) and the chuck seat (2), wherein a movable connection device (8) capable of relative rotation is arranged between the inner push rod (4) and the cylinder (5).

2. The rotary clamping mechanism according to claim 1, characterized in that: The movable connection device (8) comprises a groove block (81) mounted on the piston in the cylinder (5) and a first bearing (82) mounted on the end of the inner push rod (4) and capable of being locked in the groove block (81).

3. The rotary clamping mechanism according to claim 1, characterized in that: The clamping jaw device (3) comprises a left-finger clamping jaw (31) and a right-finger clamping jaw (32) arranged at the front end of the clamping head seat (2), and a wire clamping positioning plate (33) arranged at the end of the clamping head seat (2) and located between the left-finger clamping jaw (31) and the right-finger clamping jaw (32). The left-finger clamping jaw (31) and the right-finger clamping jaw (32) are driven by the inner push rod (4) to simultaneously fit with both sides of the wire clamping positioning plate (33) to clamp one or two wires.

4. The rotary clamping mechanism according to claim 3, characterized in that: The left finger clamp (31) and the inner push rod (4) are connected via a first hinge rod (34), the middle part of which is hinged to the chuck seat (2), and the left finger clamp (31) and the inner push rod (4) are respectively mounted on the two ends of the first hinge rod (34); the right finger clamp (32) and the inner push rod (4) are connected via a second hinge rod (35), the middle part of which is hinged to the chuck seat (2), and the right finger clamp (32) and the inner push rod (4) are respectively mounted on the two ends of the first hinge rod (34).

5. The rotary clamping mechanism according to claim 4, characterized in that: The first hinge rod (34) and the second hinge rod (35) are both L-shaped, and their respective parts are hingedly fixed in the chuck seat (2) through a first pin column (36) and a second pin column (37), and the ends of the first hinge rod (34) and the second hinge rod (35) are hingedly connected to the inner push rod (4) in an up-and-down staggered manner through a third pin column (38).

6. The rotary clamping mechanism according to claim 5, characterized in that: The cross section of the inner push rod (4) is T-shaped, and the front end of the inner push rod (4) is provided with a positioning notch (41) for the first hinge rod (34) and the second hinge rod (35) to be inserted alternately and for the third pin (38) to pass through.

7. The rotary clamping mechanism according to claim 6, characterized in that: The inner push rod (4) is sleeved with at least two sliding sleeves (42) on the inner sliding rod of the chuck seat (2), and the rear end of the inner push rod (4) is connected to the movable connection device (8) through a flange (43).

8. The rotary clamping mechanism according to any one of claims 1 to 7, characterized in that: The chuck seat (2) is also provided with a nut cap (21) for adjusting the limit position, and the movable bottom plate (1) is provided with a first vertical plate (11) and a second vertical plate (12) for supporting the chuck seat (2), and a limit plate (13) for cooperating with the nut cap (21) for limiting the position is provided on the side of the first vertical plate (11).

9. The rotary clamping mechanism according to claim 8, characterized in that: The motor (6) is mounted on the second vertical plate (12), and a third vertical plate (14) for supporting the cylinder (5) is also arranged behind the second vertical plate (12); a second bearing (15) and a third bearing (16) for supporting the chuck seat (2) are respectively arranged in the first vertical plate (11) and the second vertical plate (12).

10. The rotary clamping mechanism according to claim 8, characterized in that: The movable bottom plate (1) is also provided with a sensor (9) for detecting the number of rotations of the chuck seat (2); the sensor (9) is located between the first vertical plate (11) and the second vertical plate (12); and the chuck seat (2) is provided with a sensing sheet (91) matching the sensor (9).

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