Novel rotary clamping jaw mechanism

Abstract

The invention discloses a novel rotary clamping jaw mechanism which comprises a rack, rotating shafts, a clamping air cylinder and a driving device, the rack is provided with a positioning plate and a base plate which are arranged at intervals, the rotating shafts are installed on the positioning plate in a pivoted mode, and the multiple rotating shafts are arranged at intervals; the rear end of each rotating shaft is fixedly provided with a correction seat, the rack is provided with a positioning point matched with the correction seat, each rotating shaft is fixedly provided with at least one elastic driving structure, one end of each elastic driving structure is connected with the synchronous wheel, and the other end of each elastic driving structure is connected with the corresponding rotating shaft. The synchronous wheel exerts rotating force on the elastic driving mechanism and enables the elastic driving mechanism to drive the rotating shaft to rotate after the elastic driving mechanism stores preset torsion. When the synchronizing wheel rotates by a preset angle and stops rotating, the torsion stored by the elastic driving structure is released, and the correcting seat is continuously driven to rotate, so that the plurality of rotating shafts synchronously rotate by a preset amplitude.

Description

Technical Field

[0001] The invention relates to the field of coil processing equipment, and in particular to a novel rotating clamping claw mechanism. Background Art

[0002] In the processing of coils, such as wire turn winding or coil welding (generally such as stator welding plates or winding), in order to achieve the flipping of the coils at a predetermined angle, the conventional practice is generally to flip the coils directly by a rotating device.

[0003] However, with the setting of a multi-link structure, that is, processing multiple products at the same time, in order to achieve the flipping consistency of multiple products and thus ensure subsequent processing, the existing practice is generally to use multiple sets of rotating devices and drive them separately through servo rotating motors, thereby achieving simultaneous processing of multiple products.

[0004] However, multiple sets of drive devices also have the following problems:

[0005] 1. The equipment cost of multiple sets of drive devices will also increase. At the same time, the consistency adjustment and trial operation of multiple sets of drive devices in subsequent production will be more troublesome, and the procurement cost and time cost will be high;

[0006] 2. In order to ensure the same angle of the same coil, there is an adjustment gap for the coil that has not been rotated to the predetermined position. Therefore, there is a time lag when the processing mechanism is processing at the same time, which affects the production efficiency. Summary of the invention

[0007] The main purpose of the present invention is to propose a novel rotating jaw mechanism, which aims to realize the simultaneous rotation of multiple coils through a set of driving devices, and has a simple and stable structure, while effectively reducing the production cost.

[0008] To achieve the above object, the present invention proposes a novel rotating jaw mechanism, comprising:

[0009] A frame, wherein the frame is provided with a positioning plate and a base plate arranged at intervals;

[0010] A rotating shaft, the rotating shaft is pivotally mounted on the positioning plate, and a plurality of the rotating shafts are provided and arranged at intervals;

[0011] A clamping cylinder, the clamping cylinder is pivotally mounted between the positioning plate and the base plate, a hollow passage is provided in the middle of the rotating shaft, the hollow passage is provided with a pipe connected to the clamping cylinder, the front end of the pipe is connected to the clamping cylinder, and the rear end is connected to a hose or a rotating joint;

[0012] The clamping cylinder is fixedly connected to the rotating shaft;

[0013] A driving device, the driving device comprising a synchronous wheel pivotally mounted on the rear end of the rotating shaft and a driving belt connected to the plurality of synchronous wheels, the driving belt being connected to the rotating device, and the driving belt being used to drive the plurality of synchronous wheels to rotate simultaneously;

[0014] A correction seat is fixedly mounted on the rear end of each rotating shaft, and the frame is provided with a positioning point that matches the correction seat.

[0015] The rotating shaft is fixedly provided with at least one elastic driving structure, one end of the elastic driving structure is connected to the synchronous wheel, and the other end is connected to the rotating shaft.

[0016] When the driving belt drives the synchronous wheel to rotate, the synchronous wheel applies a rotational force to the elastic driving mechanism, and the elastic driving mechanism stores a predetermined torque and then drives the rotating shaft to rotate;

[0017] When the synchronous wheel rotates to a predetermined angle and stops, the torque stored in the elastic driving structure is released and continues to drive the correction seat to rotate, thereby causing the multiple rotating shafts to rotate synchronously to a predetermined amplitude.

[0018] In the actual design, when the driving belt drives multiple rotating shafts at the same time (i.e., a multi-link structure), the multiple rotating shafts rotate at the same time, but the rotating shafts are affected by errors, which may cause some of the rotating shafts to not rotate into place (i.e., the correction seat does not abut against the end of the positioning point). Therefore, an elastic driving structure is set on the rotating shaft, that is, the first torsion spring is compressed by the synchronous wheel to realize the rotation of the rotating shaft, and the correction seat is abutted against the first positioning column. However, part of the rotating shaft may be affected by errors, and the correction seat does not abut against the first positioning column. Therefore, the elastic force of the compressed first torsion spring of the correction seat that does not contact the first positioning column is released (the synchronous wheel is fixed, so the elastic force of the first torsion spring tends to the direction of the correction seat), thereby applying torque to the correction seat and rotating the rotating shaft, thereby realizing the synchronous movement of the multi-linked rotating shafts, with better synchronization, and a simple and stable structure.

[0019] At the same time, the setting of the hollow channel also avoids the problem of messy lines of machine equipment. Of course, the hollow channel can also be used to place the lines of the clamping electric cylinder, thereby avoiding messy lines.

[0020] Of course, the cost of the cylinder is lower and the energy consumption is lower. At the same time, the setting of the hose does not affect the gas input. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the present invention;

[0022] Figure 2 It is a partial exploded view of the present invention;

[0023] Figure 3 It is a sectional view of the rotating shaft;

[0024] Figure 4 This is a schematic diagram of the matching between the correction seat and the linkage shaft;

[0025] Figure 5 It is a schematic diagram of a multi-connected unit;

[0026] Figure 6 This is a partial enlarged schematic diagram of the correction seat.

[0027] Figure 7 It is a three-dimensional schematic diagram of two sets of multi-link units.

[0028] In the figure,

[0029] 1 is a frame, 11 is a positioning plate, 12 is a base plate,

[0030] 2 is a rotating shaft, 20 is a hollow channel, 21 is a rotating joint,

[0031] 3 is a clamping cylinder, 31 is a clamping guide rail, 32 is a clamping slide, 33 is a clamping arm, 34 is a clamping claw, 35 is a bending wall, 36 is a tension spring,

[0032] 4 is a driving device, 41 is a synchronous wheel, 42 is a driving belt, 43 is a guide wheel,

[0033] 5 is a correction seat, 50 is a positioning point, 50a is a first positioning column, 50b is a second positioning column, 51 is a first torsion spring, 52 is a first positioning hole, 53 is a first notch,

[0034] 6 is a pressure seat, 61 is a horizontal rod, 62 is a vertical telescopic cylinder, 63 is a top spring,

[0035] 7 is a linkage shaft, 71 is a second torsion spring, 72 is a second positioning hole, 72a is a stepped portion, 73 is a second notch,

[0036] 8 is a coupling, 81 is a clamping groove, and 82 is a sealing ring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the present invention, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] like Figures 1 to 7 As shown, a novel rotating jaw mechanism comprises:

[0041] A frame, wherein the frame is provided with a positioning plate and a base plate arranged at intervals;

[0042] A rotating shaft, the rotating shaft is pivotally mounted on the positioning plate, and a plurality of the rotating shafts are provided and arranged at intervals;

[0043] A clamping cylinder, the clamping cylinder is pivotally mounted between the positioning plate and the base plate, a hollow passage is provided in the middle of the rotating shaft, the hollow passage is provided with a pipe connected to the clamping cylinder, the front end of the pipe is connected to the clamping cylinder, and the rear end is connected to a hose or a rotating joint;

[0044] The clamping cylinder is fixedly connected to the rotating shaft;

[0045] A driving device, the driving device comprising a synchronous wheel pivotally mounted on the rear end of the rotating shaft and a driving belt connected to the plurality of synchronous wheels, the driving belt being connected to the rotating device, and the driving belt being used to drive the plurality of synchronous wheels to rotate simultaneously;

[0046] A correction seat is fixedly mounted on the rear end of each rotating shaft, and the frame is provided with a positioning point that matches the correction seat.

[0047] The rotating shaft is fixedly provided with at least one elastic driving structure, one end of the elastic driving structure is connected to the synchronous wheel, and the other end is connected to the rotating shaft.

[0048] When the driving belt drives the synchronous wheel to rotate, the synchronous wheel applies a rotational force to the elastic driving mechanism, and the elastic driving mechanism stores a predetermined torque and then drives the rotating shaft to rotate;

[0049] When the synchronous wheel rotates to a predetermined angle and stops, the torque stored in the elastic driving structure is released and continues to drive the correction seat to rotate, thereby causing the multiple rotating shafts to rotate synchronously to a predetermined amplitude.

[0050] In the actual design, when the driving belt drives multiple rotating shafts at the same time (i.e., a multi-link structure), the multiple rotating shafts rotate at the same time, but the rotating shafts are affected by errors, which may cause some of the rotating shafts to not rotate into place (i.e., the correction seat does not abut against the end of the positioning point). Therefore, an elastic driving structure is set on the rotating shaft, that is, the first torsion spring is compressed by the synchronous wheel to realize the rotation of the rotating shaft, and the correction seat is abutted against the first positioning column. However, part of the rotating shaft may be affected by errors, and the correction seat does not abut against the first positioning column. Therefore, the elastic force of the compressed first torsion spring of the correction seat that does not contact the first positioning column is released (the synchronous wheel is fixed, so the elastic force of the first torsion spring tends to the direction of the correction seat), thereby applying torque to the correction seat and rotating the rotating shaft, thereby realizing the synchronous movement of the multi-linked rotating shafts, with better synchronization, and a simple and stable structure.

[0051] At the same time, the setting of the hollow channel also avoids the problem of messy lines of machine equipment. Of course, the hollow channel can also be used to place the lines of the clamping electric cylinder, thereby avoiding messy lines.

[0052] Of course, the cost of the cylinder is lower and the energy consumption is lower. At the same time, the setting of the hose does not affect the gas input.

[0053] In reality, the synchronous wheel does not drive the rotating shaft to rotate (i.e., it is pivotally arranged), but drives the torsion spring to drive the rotating shaft to rotate. When the torsion spring reaches the compression position, it drives the rotating shaft to rotate. When the synchronous wheel stops, it can be understood as a fixed structure, so the elastic force of the torsion spring is released, and forces the correction seat or the linkage shaft to rotate.

[0054] At the same time, the setting of the hollow channel 20 also avoids the problem of messy lines of the machine equipment. Of course, the hollow channel 20 can also be used to place the lines of the clamping electric cylinder, thereby avoiding messy lines.

[0055] Of course, the cost of the cylinder is lower and the energy consumption is lower. At the same time, the setting of the hose does not affect the gas input.

[0056] Specifically, the front wall of the clamping cylinder 3 is provided with two sets of clamping guide rails 31, and the clamping guide rails 31 are provided with clamping slide blocks 32. The clamping cylinder 3 is used to drive the clamping slide blocks 32 to slide along the length direction thereof.

[0057] The two clamping slide blocks 32 are respectively provided with clamping arms 33 , and the clamping arms 33 are provided with clamping claws 34 , and then the relative movement of the clamping claws 34 is realized through the clamping cylinder 3 , thereby achieving stable clamping of the stator.

[0058] In the embodiment of the present invention, the clamping cylinder 3 is used to drive the two sliders to slide in a direction away from each other.

[0059] A tension spring 36 is provided between the rear ends of the two clamping arms 33 . The tension spring 36 has two groups, which are respectively located at the upper and lower positions of the clamping arms 33 . The tension spring 36 is used to apply a pulling force to the two clamping arms 33 to bring them closer together.

[0060] Specifically, the tension spring 36 applies a pulling force to the clamping arm 33, and when clamping the stator, the clamping force is more linear, which reduces the clamping damage to the stator and can also adapt to stators within a predetermined range of sizes.

[0061] Of course, when the size difference is large, it needs to be replaced;

[0062] At the same time, the arrangement of the double tension spring 36 can also effectively ensure this.

[0063] Specifically, the front end of the clamping arm 33 is provided with a bending wall 35, and the clamping claw 34 is provided with a fitting wall matching the bending wall 35. The bending wall 35 of the rack structure can also effectively improve the installation stability between the clamping wall and the clamping claw 34, thereby maintaining the clamping stability.

[0064] In the embodiment of the present invention, the base plate 12 is provided with a vertical telescopic cylinder 62, the driving end of the vertical telescopic cylinder 62 is provided with a horizontal rod 61, the horizontal rod 61 is provided with a pressure seat 6, the pressure seat 6 is arranged above the clamping interval of the two clamps 34, the upper part of the pressure seat 6 is slidably installed on the horizontal rod 61, the horizontal rod 61 is provided with a top spring 63, the top spring 63 is used to apply downward pressure to the pressure seat 6, thereby realizing the tightening of the upper end of the stator, while ensuring the elastic offset, reducing scratches on the stator.

[0065] Specifically, when the positioning point is the first positioning column,

[0066] The elastic driving structure comprises a first torsion spring, the first torsion spring is sleeved between the correction seat and the rotating shaft, a non-circular first positioning hole is provided in the middle of the correction seat, and the rotating shaft is clamped in the first positioning hole;

[0067] A first notch is provided on the side wall of the correction seat close to the synchronous wheel, and the first torsion spring is arranged in the first notch. One end of the first torsion spring is connected to the correction seat, and the other end is connected to the side wall of the synchronous wheel.

[0068] When the synchronous wheel rotates, the synchronous wheel applies a torsional force to one end of the first torsion spring so that the first torsion spring drives the correction seat to rotate;

[0069] When the synchronous wheel stops, the elastic force of the first torsion spring is released, and drives the correction seat to rotate toward the first positioning column.

[0070] When the positioning point is the second positioning column,

[0071] The positioning plate is provided with a linkage shaft, the linkage shaft sleeve is arranged at the position of the positioning plate, and the linkage shaft is provided with a second notch, and the second notch is used to place a second torsion spring.

[0072] The second torsion spring is arranged in the second notch, one end of the second torsion spring is connected to the linkage shaft, and the other end is connected to the synchronous wheel.

[0073] When the synchronous wheel rotates toward the second positioning column, the synchronous wheel applies a torsional force to one end of the second torsion spring so that the second torsion spring drives the linkage shaft to rotate;

[0074] When the synchronous wheel stops, the elastic force of the second torsion spring is released, and drives the linkage shaft to rotate toward the second positioning column.

[0075] The principle is similar to that of the first torsion spring 51 .

[0076] Specifically, the first torsion spring and the second torsion spring may have a torsion force in the direction of the first positioning column and the second positioning column respectively, so when the synchronous wheel stops, a predetermined torsion force may be released;

[0077] Of course, the first torsion spring and the second torsion spring can also be pressed and stored by the synchronous wheel, and when the synchronous wheel stops, the elastic force of the cover part can be released;

[0078] Of course, pre-stored torque and compressed stored torque can coexist, and can be designed according to actual needs.

[0079] At the same time, the double torsion spring structure can also ensure the stability of the elastic force, and can realize position correction in the first direction and the second direction (ie clockwise and counterclockwise).

[0080] By providing the first torsion spring 51 and the second torsion spring 71 , a greater elastic force can be accumulated, and the elastic force can be released more linearly.

[0081] In the embodiment of the present invention, the linkage shaft 7 is provided with a second positioning hole 72, which is composed of a circular hole and a bar hole. The rotating shaft 2 is provided with a stepped portion 72a matching the second positioning hole 72, thereby ensuring the stable installation between the linkage shaft 7 and the rotating shaft 2.

[0082] Specifically, a coupling 8 is provided at the front end of the rotating shaft 2, and the coupling 8 is provided with a clamping groove 81. The inner end wall of the clamping groove 81 is provided with a sealing ring 82. The clamping cylinder 3 is arranged in the clamping groove 81, and the rear end wall of the clamping cylinder 3 is abutted against the sealing ring 82. The clamping groove 81 is connected with the hollow channel 20, which not only ensures the stable installation of the clamping cylinder 3, but also ensures the gas transportation and the stability of the installation.

[0083] In the embodiment of the present invention, a guide wheel 43 is further provided between the driving belt 42 and each synchronous wheel 41 , thereby ensuring the tension of the driving belt 42 .

[0084] Specifically, in order to ensure smooth rotation and accuracy, bearings are provided at the positions of the positioning plate 11 and the base plate 12 .

[0085] The correction seat radially extends to have a stopper 5a which is larger than the diameter of the rotating shaft.

[0086] The outer wall of the clamping cylinder is provided with a positioning groove 91, which is in the shape of an inclined surface (gradually decreasing from the outside to the inside). The coupling is provided with a through hole 92, and the through hole is provided with a positioning rod. After passing through the through hole, the positioning rod abuts against the positioning groove and forces the clamping cylinder to move in the direction of the inner wall of the clamping groove through the inclined surface.

[0087] The two sides of the synchronous wheel are arranged on the rotating bearing, and the front wall and the rear wall of the rotating bearing are provided with limiting grooves 100, and the two limiting grooves are respectively used to install the first end of the first torsion spring and the second end of the second torsion spring.

[0088] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A novel rotating jaw mechanism, characterized in that: include: A frame, wherein the frame is provided with a positioning plate and a base plate arranged at intervals; A rotating shaft, the rotating shaft is pivotally mounted on the positioning plate, and a plurality of the rotating shafts are provided and arranged at intervals; A clamping cylinder, the clamping cylinder is pivotally mounted between the positioning plate and the base plate, a hollow passage is provided in the middle of the rotating shaft, the hollow passage is provided with a pipe connected to the clamping cylinder, the front end of the pipe is connected to the clamping cylinder, and the rear end is connected to a hose or a rotating joint; The clamping cylinder is fixedly connected to the rotating shaft; A driving device, the driving device comprising a synchronous wheel pivotally mounted on the rear end of the rotating shaft and a driving belt connected to the plurality of synchronous wheels, the driving belt being connected to the rotating device, and the driving belt being used to drive the plurality of synchronous wheels to rotate simultaneously; A correction seat is fixedly mounted on the rear end of each rotating shaft, and the frame is provided with a positioning point that matches the correction seat. The rotating shaft is fixedly provided with at least one elastic driving structure, one end of the elastic driving structure is connected to the synchronous wheel, and the other end is connected to the rotating shaft. When the driving belt drives the synchronous wheel to rotate, the synchronous wheel applies a rotational force to the elastic driving mechanism, and the elastic driving mechanism stores a predetermined torque and then drives the rotating shaft to rotate; When the synchronous wheel rotates to a predetermined angle and stops, the torque stored in the elastic driving structure is released and continues to drive the correction seat to rotate, thereby causing the multiple rotating shafts to rotate synchronously to a predetermined amplitude.

2. The novel rotating jaw mechanism according to claim 1 is characterized in that: The front wall of the clamping cylinder is provided with two sets of clamping guide rails, and the clamping guide rails are provided with clamping slide blocks. The clamping cylinder is used to drive the clamping slide blocks to slide along the length direction thereof. The two clamping slide blocks are respectively provided with clamping arms, and the clamping arms are provided with clamping claws; The clamping cylinder is used to drive the two sliders to slide away from each other. A tension spring is arranged between the rear ends of the two clamping arms. The tension spring is arranged in two groups and is respectively located at the upper side and the lower side of the clamping arms. The tension spring is used to apply a pulling force to the two clamping arms to bring them closer together.

3. The novel rotating jaw mechanism according to claim 1 is characterized in that: The front end of the clamping arm is provided with a bending wall, and the clamping claw is provided with a fitting wall matched with the bending wall.

4. The novel rotating jaw mechanism according to claim 1 is characterized in that: The base plate is provided with a vertical telescopic cylinder, the driving end of the vertical telescopic cylinder is provided with a horizontal rod, the horizontal rod is provided with a pressure seat, the pressure seat is arranged above the clamping interval of the two jaws, the upper part of the pressure seat is slidably installed on the horizontal rod, the horizontal rod sleeve is provided with a top spring, and the top spring is used to apply downward pressure to the pressure seat.

5. The novel rotating jaw mechanism according to claim 1 is characterized in that: When the positioning point is the first positioning column, The elastic driving structure comprises a first torsion spring, the first torsion spring is sleeved between the correction seat and the rotating shaft, a non-circular first positioning hole is provided in the middle of the correction seat, and the rotating shaft is clamped in the first positioning hole; A first notch is provided on the side wall of the correction seat close to the synchronous wheel, and the first torsion spring is arranged in the first notch. One end of the first torsion spring is connected to the correction seat, and the other end is connected to the side wall of the synchronous wheel. When the synchronous wheel rotates, the synchronous wheel applies a torsional force to one end of the first torsion spring and compresses the first torsion spring, thereby driving the correction seat to rotate; When the synchronous wheel stops, the elastic force of the first torsion spring is released, and drives the correction seat to rotate toward the first positioning column.

6. The novel rotating jaw mechanism according to claim 5, characterized in that: When the positioning point is the second positioning column, The positioning plate is provided with a linkage shaft, the linkage shaft sleeve is arranged at the position of the positioning plate, and the linkage shaft is provided with a second notch, and the second notch is used to place a second torsion spring. The second torsion spring is arranged in the second notch, one end of the second torsion spring is connected to the linkage shaft, and the other end is connected to the synchronous wheel. When the synchronous wheel rotates toward the second positioning column, the synchronous wheel applies a torsional force to one end of the second torsion spring so that the second torsion spring drives the linkage shaft to rotate; When the synchronous wheel stops, the elastic force of the second torsion spring is released, and continues to drive the linkage shaft to rotate toward the second positioning column.

7. The novel rotating jaw mechanism according to claim 6 is characterized in that: The linkage shaft is provided with a second positioning hole, the second positioning hole is composed of a round hole and a strip hole, and the rotating shaft is provided with a stepped portion matched with the second positioning hole.

8. The novel rotating jaw mechanism according to claim 1 is characterized in that: The front end of the rotating shaft is provided with a clamping groove, the inner end wall of the clamping groove is provided with a sealing ring, the clamping cylinder is arranged in the clamping groove, the rear end wall of the clamping cylinder abuts against the sealing ring, and the clamping groove is connected with the hollow channel.

9. The novel rotating jaw mechanism according to claim 5, characterized in that: The outer wall of the clamping cylinder is provided with a positioning groove, which is in the shape of an inclined surface. The coupling is provided with a through hole, and the through hole is provided with a positioning rod. After passing through the through hole, the positioning rod abuts against the positioning groove and forces the clamping cylinder to move in the direction of the inner wall of the clamping groove through the inclined surface.

10. The novel rotating jaw mechanism according to claim 6, characterized in that: The two sides of the synchronous wheel are arranged on the rotating bearing, and the front wall and the rear wall of the rotating bearing are provided with limiting grooves, and the two limiting grooves are respectively used to install the first end of the first torsion spring and the second end of the second torsion spring.

Images