Mechanical claw for synchronous material receiving of spring machine

Abstract

The utility model relates to a mechanical gripper for synchronous material receiving of a spring machine, and belongs to the technical field of spring machines. The mechanical claw comprises a clamping part, a fixing part and a locking part, the clamping part comprises a clamp assembly used for clamping a spring and a driving mechanism used for driving the clamp assembly to be opened and closed, the clamping part is rotationally connected with the fixing part through a rotating shaft, and the locking part abuts against the rotating shaft in a contact mode and is used for providing resistance for the rotating shaft. According to the scheme, the clamping angle of the clamping part can be flexibly adjusted by rotating the rotating shaft and the locking part, and the receiving requirements of different discharging stations of the spring machine are met.

Description

Technical Field

[0001] This utility model relates to the field of spring machine technology, and in particular to a mechanical claw for synchronous material receiving in a spring machine. Background Technology

[0002] A spring machine is a highly efficient automated equipment for processing springs, which processes spring wire into various spring products. It mainly consists of five basic structural parts: a straightening mechanism, a feeding mechanism, a diameter changing mechanism, a pitch control mechanism, and a cutting mechanism, which facilitates the overall automated processing and production of springs.

[0003] In order to prevent irregularly shaped springs from tangling, existing spring machines usually have mechanical claws at the discharge end to collect the material. However, the position adjustment of the existing mechanical claws is not convenient enough. When the discharge direction of the spring machine changes, it is impossible to make quick fine adjustments, which affects the material collection process. This causes the irregularly shaped springs to tangle when they fall into the material basket, requiring them to be separated during heat treatment, which is time-consuming and labor-intensive. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides a mechanical claw for synchronous material receiving of spring machines. It can flexibly adjust the clamping angle of the clamping part by rotating the shaft and locking part to meet the material receiving needs of different discharge stations of the spring machine.

[0005] The first aspect of this utility model provides a mechanical claw for synchronously receiving springs in a spring machine, comprising a clamping part, a fixing part, and a locking part. The clamping part includes a clamping assembly for clamping springs and a driving mechanism for driving the clamping assembly to open and close. The clamping part is rotatably connected to the fixing part via a rotating shaft. The locking part contacts and abuts against the rotating shaft to provide resistance to the rotating shaft.

[0006] In one possible implementation of the first aspect above, the fixing part includes a first base and a second base, the first base is connected to the second base, and the plane of the first base is perpendicular to the plane of the second base; the first base has a circular hole for the rotating shaft to pass through, the first end of the rotating shaft is connected to the clamping part, and the locking part is disposed on the first base.

[0007] In one possible implementation of the first aspect described above, the locking part includes a locking bolt and a bearing, the bearing being fitted into the circular hole, the first seat having a threaded hole for the locking bolt to be screwed into, the end of the locking bolt being able to engage or disengage from the ball bearing, and the rotating shaft being installed inside the bearing.

[0008] In one possible implementation of the first aspect above, the locking part includes a plurality of damping components sleeved on the rotating shaft, the second end of the rotating shaft radially increases to form a cover, the damping components contact and abut against the cover, and the clamping part and the cover are able to rotate relative to each other to squeeze the damping components.

[0009] In one possible implementation of the first aspect described above, the damping assembly includes stacked gaskets and damping washers.

[0010] In one possible implementation of the first aspect described above, a through hole is provided on the second base body, and a slot is provided on the second base body along the axial direction of the through hole. Locking holes are provided on both sides of the slot, and bolts are provided in the locking holes to reduce the radial dimension of the through hole.

[0011] In one possible implementation of the first aspect described above, the clamping part further includes: a housing, a return spring, a pin, and a slider. The clamping assembly includes two interlocking clamping bodies. Matching shaft holes are provided in the middle of the two clamping bodies. The pin passes through the shaft holes. The two clamping bodies are hinged to the housing via the pin. The return spring is sleeved on the pin. The free end of the return spring is engaged with the clamping body. The clamping bodies are radially reduced from the middle to both ends. The first end of the clamping body is used to clamp the spring. A slide is provided on one side of the two clamping bodies facing each other and in the direction towards the second end of the clamping body. The two ends of the slider are located on the slide, and the slider is connected to the movable end of the drive mechanism.

[0012] In one possible implementation of the first aspect described above, the drive mechanism includes a push-pull cylinder fixed within the housing.

[0013] In one possible implementation of the first aspect above, the rotating shaft is a hollow sleeve, the first end of which is connected to the air supply end of the push-pull cylinder, and the second end of which is used to connect to a pneumatic connector to input a pneumatic pressure.

[0014] The technical solution provided by this utility model can include the following beneficial effects:

[0015] The mechanical claw provided by this utility model is used for synchronous material receiving of a spring machine. It includes a clamping part, a fixing part, and a locking part. When the spring produced by the spring machine is formed, the clamping assembly opens and closes under the drive of the drive mechanism to clamp the spring. Under the movement of the receiving arm of the spring machine, the spring is placed in the material tray conveyor belt. With this setting, the spring in the spring machine can be prevented from being cut and falling, which would cause entanglement.

[0016] When operators reset the production process or change the type of spring according to production needs, resulting in a change in the forming direction of the produced springs, the resistance to the rotating shaft can be quickly adjusted by locking the locking part. This allows the rotating shaft to be rotated to adjust the angle at which the clamping part holds the spring, thus quickly completing the production adjustment without disassembling or replacing the mechanical claw. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0018] Figure 1 This is a schematic diagram of the structure of a mechanical claw used for synchronous material receiving in a spring machine, as shown in an embodiment of this utility model.

[0019] Figure 2 This is a cross-sectional view of a mechanical claw used for synchronous material receiving in a spring machine, as shown in an embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of the locking part shown in an embodiment of the present invention;

[0021] Figure 4 This is another structural schematic diagram of the locking part shown in an embodiment of the present utility model.

[0022] Figure label:

[0023] 1. Clamping part; 11. Clamping assembly; 110. Clamping body; 12. Drive mechanism; 13. Housing; 14. Pin; 15. Slider; 2. Fixing part; 21. First seat; 22. Second seat; 221. Through hole; 222. Groove; 3. Locking part; 31. Locking bolt; 32. Bearing; 33. Damping assembly; 331. Shim; 332. Washer; 4. Rotating shaft; 41. Cover. Detailed Implementation

[0024] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0025] To address the aforementioned issues, this utility model provides a mechanical gripper for synchronous material receiving in a spring machine. This gripper can flexibly adjust the clamping angle of the clamping part 1 by rotating the rotating shaft 4 and the locking part 3, thereby meeting the material receiving requirements of different discharge stations of the spring machine.

[0026] The technical solutions of the embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of a mechanical claw used for synchronous material receiving in a spring machine, as shown in an embodiment of this utility model.

[0028] Figure 2 This is a cross-sectional view of a mechanical claw used for synchronous material receiving in a spring machine, as shown in an embodiment of this utility model.

[0029] Figure 3 This is a schematic diagram of the structure of the locking part 3 shown in an embodiment of the present invention;

[0030] Figure 4 This is another structural schematic diagram of the locking part 3 shown in an embodiment of the present utility model.

[0031] Please see Figures 1 to 2 The present invention provides a mechanical claw for synchronously receiving springs in a spring machine, comprising a clamping part 1, a fixing part 2, and a locking part 3. The clamping part 1 includes a clamping assembly 11 for clamping springs and a driving mechanism 12 for driving the clamping assembly 11 to open and close. The clamping part 1 is rotatably connected to the fixing part 2 via a rotating shaft 4. The locking part 3 contacts and abuts against the rotating shaft 4 to provide resistance to the rotating shaft 4.

[0032] Spring machines belong to existing technology. This utility model provides a simple explanation of the structure and working principle of a spring machine. A spring machine is a machine used to manufacture various elastic elements, mainly used to produce various types of elastic elements such as compression springs, tension springs, and torsion springs. Specifically, the structure of a spring machine mainly consists of a feeding device, a coiling, rotating, and shearing part, including a conveying device: used to feed steel wire into the wheel of the coiling part.

[0033] The coiling section consists of a wheel and a spring mold, used to coil steel wire into a spring according to the required length and shape.

[0034] Rotating part: Used to control the direction and density of the spring's helix.

[0035] Cutting section: Used to cut the spring to the required size according to the desired length.

[0036] The working principle of a spring machine can be divided into the following steps:

[0037] Feeding: The steel wire is fed to the reel of the coiling section by the feeding device, and then moves forward by the conveying device, ready to be coiled into a spring.

[0038] Curling: After the steel wire is fed into the wheel, it begins to be curled according to a pre-set length and shape. At this time, the spring machine system controls the rotation and forward speed of the wheel to ensure smooth curling. Simultaneously, the spring die gradually curls the steel wire until the desired spring shape is achieved.

[0039] Rotation: During the coiling process, the spring machine system also controls the rotation direction and speed of the spring, and adjusts them through mold design. This ensures that the quality and performance of the spring meet the specified standards.

[0040] Cutting: After the springs are made to the required length, the spring machine sends them directly to the cutting section, where the cutting mechanism cuts the springs to the appropriate dimensions. Simultaneously, the spring machine system will also process the ends of the springs as needed to ensure their quality and performance.

[0041] In this invention, after the spring machine produces a spring of reduced length, the synchronous receiving device moves to the vicinity of the outer periphery of the spring under the drive of the spring machine. The spring machine can then control the drive mechanism 12 to drive the clamp assembly 11 to open and close, clamping the spring and conveying it to the next process, such as a belt conveyor. Under the action of the locking part 3, the angle of the clamping part 1 is fixed to adapt to the direction of the spring produced by the current spring machine, making it easy to complete the clamping work repeatedly. When it is necessary to switch to other types of springs according to the actual production needs, the operator can adjust the resistance to the rotating shaft 4 through the locking part 3 and rotate the rotating shaft 4 to adjust the clamping angle of the clamping part 1. It has the advantages of being convenient, quick, and simple in structure.

[0042] In one possible implementation, to ensure that the clamping part 1 has sufficient space to clamp the spring and to facilitate adjustment of the clamping direction of the clamping part 1, this invention provides two mutually perpendicular planes: a first seat 21 and a second seat 22. (See also...) Figure 3 The aforementioned fixing part 2 of the mechanical claw for synchronous material receiving in a spring machine includes a first base 21 and a second base 22. The first base 21 is connected to the second base 22, and the plane of the first base 21 is perpendicular to the plane of the second base 22. A circular hole is provided on the first base 21 for the rotating shaft 4 to pass through. The first end of the rotating shaft 4 is connected to the clamping part 1, and the locking part 3 is disposed on the first base 21. In practical applications, the second base 22 is installed on a synchronous material receiving device, the specific of which is described in the invention patent filed by the applicant on the same day.

[0043] In one possible implementation, the locking part 3 of the mechanical claw for synchronous feeding of a spring machine includes a locking bolt 31 and a bearing 32. The bearing 32 is embedded in the circular hole. The first seat 21 has a threaded hole for the locking bolt 31 to be screwed into. The end of the locking bolt 31 can engage or disengage from the balls of the bearing 32. The rotating shaft 4 is installed inside the bearing 32. For details, please refer to... Figure 3 In this configuration, when the type of spring produced by the spring machine changes, the end of the locking bolt 31 is moved away from the balls of the bearing 32 by turning the knob to lock the bolt 31, allowing the bearing 32 to rotate relative to it. This allows the angle of the clamping part 1 to be adjusted according to the current spring production direction. In this embodiment, the bolt can be an internal hex bolt, and the locking bolt 31 can be quickly tightened or loosened using an internal hex wrench.

[0044] In one possible implementation, the locking part 3 of the mechanical claw for synchronous material receiving of the spring machine includes a plurality of damping components 33 sleeved on the rotating shaft 4. The second end of the rotating shaft 4 is radially enlarged to form a cover 41. The damping components 33 contact and abut against the cover 41. The clamping part 1 and the cover 41 can rotate relative to each other to squeeze the damping components 33.

[0045] In practical applications, using locking bolts 31 to limit the rotation shaft 4 may present installation difficulties. This embodiment provides an alternative feasible solution; please refer to [link / reference]. Figure 4 Several damping components 33 are sleeved on the rotating shaft 4. When a group of damping components 33 is subjected to force and rotates, the several damping components 33 rotate synchronously, and the damping components 33 move against each other to generate friction, ensuring that the rotating shaft 4 can rotate and maintain a fixed position at the current angle during the rotation, thereby fixing the clamping angle.

[0046] In a preferred embodiment, in order to facilitate the operator to rotate the shaft 4, a corresponding support arm can be provided on the cover 41 of the shaft 4. The support arm extends the rotational torque on the shaft 4, thereby reducing the rotational thrust during rotation and achieving the function of quick adjustment.

[0047] In one possible implementation, the damping assembly 33 of the mechanical claw for synchronous material receiving of the spring machine includes stacked shims 331 and damping washers 332. Specifically, the stacked and cross-arranged shims 331 and damping washers 332 provide sufficient damping force during rotation to fix the clamping part 1. Furthermore, by providing a plurality of shims 331 and damping washers 332, even if some of the shims 331 or damping washers 332 are damaged, the angle can still be fixed by the remaining damping washers 332.

[0048] In a preferred embodiment, the damping washer 332 may be made of silicone material, and the Shore hardness of the selected silicone material is between 35 and 55.

[0049] In one possible implementation, the second seat 22 of the mechanical claw used for synchronous material receiving of the spring machine is provided with a through hole 221, and a slot 222 is provided on the second seat 22 along the axial direction of the through hole 221. Locking holes are provided on both sides of the slot 222, and bolts are provided in the locking holes to reduce the radial dimension of the through hole.

[0050] Specifically, in this embodiment, the second seat 22 is rotatably connected to the synchronous receiving device through the through hole 221, and is fixed at various angles through the locking hole.

[0051] In one possible implementation, the first seat 21 and the second seat 22 of the mechanical claw used for synchronous material receiving of the spring machine are fixed together by bolts.

[0052] In one possible implementation, please refer to Figure 2 The clamping part 1 of the mechanical claw used for synchronous material receiving of the spring machine further includes: a housing 13, a return spring, a pin 14, and a slider 15. The clamping assembly 11 includes two interlocking clamping bodies 110. The two clamping bodies 110 have matching shaft holes in their middle, and the pin 14 passes through the shaft holes. The two clamping bodies 110 are hinged to the housing 13 through the pin 14. The return spring is sleeved on the pin 14. The free end of the return spring is engaged with the clamping body 110. The clamping body 110 is radially reduced from the middle to both ends. The first end of the clamping body is used to clamp the spring. A slide is provided on one side of the two clamping bodies 110 facing each other and in the direction of the second end of the clamping body 110. The two ends of the slider 15 are located on the slide, and the slider 15 is connected to the movable end of the drive mechanism 12.

[0053] In one possible implementation, the drive mechanism 12 for the mechanical claw used for synchronous material receiving of the spring machine includes a push-pull cylinder, which is fixed inside the housing 13.

[0054] In one possible implementation, the rotating shaft 4 of the mechanical claw used for synchronous material receiving of the spring machine is a hollow sleeve. The first end of the hollow sleeve is connected to the air supply end of the push-pull cylinder, and the second end of the hollow sleeve is used to connect to a pneumatic connector to input air pressure. By setting the rotating shaft 4 as a hollow sleeve and achieving air connection with the push-pull cylinder through the hollow sleeve, the structural design of the mechanical claw is optimized, making its structural layout more reasonable.

[0055] Compared with the prior art, this utility model achieves angle adjustment and fixation of clamping part 1 through the cooperation between locking part 3 and rotating shaft 4, and the second seat 22 can realize the overall angle adjustment of mechanical claw. When applied to spring machine, it has high adaptability and can match springs of different sizes and shapes, which can greatly improve the production efficiency of spring machine.

[0056] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A mechanical claw for synchronously receiving materials of a spring machine, characterized in that: It includes a clamping part, a fixing part and a locking part. The clamping part includes a clamp assembly for clamping a spring and a driving mechanism for driving the clamp assembly to open and close. The clamping part is rotatably connected to the fixing part through a rotating shaft, and the locking part contacts and abuts against the rotating shaft to provide resistance to the rotating shaft.

2. The mechanical gripper according to claim 1, characterized in that: The fixing portion includes a first seat body and a second seat body, the first seat body is connected to the second seat body, and the plane of the first seat body and the plane of the second seat body are perpendicular to each other; a circular hole is opened on the first seat body for the rotating shaft to pass through, the first end of the rotating shaft is connected to the clamping portion, and the locking portion is arranged on the first seat body.

3. The mechanical claw according to claim 2, characterized in that: The locking part includes a locking bolt and a bearing. The bearing is embedded in the circular hole. The first seat body is provided with a threaded hole for the locking bolt to be screwed into. The end of the locking bolt can be clamped or away from the ball of the bearing. The rotating shaft is installed in the bearing.

4. The mechanical claw according to claim 2, characterized in that: The locking portion includes a plurality of damping components sleeved on the rotating shaft. The second end of the rotating shaft is radially enlarged to form a cover body. The damping components are in contact with and abut against the cover body. The clamping portion and the cover body can rotate relative to each other to squeeze the damping components.

5. The mechanical gripper according to claim 4, characterized in that: The damping assembly includes stacked spacers and damping washers.

6. The mechanical claw according to claim 2, characterized in that: A through hole is formed on the second seat body, a slot is formed on the second seat body along the axial direction of the through hole, locking holes are formed on both sides of the slot, and bolts are provided in the locking holes to reduce the radial size of the through hole.

7. The mechanical gripper according to claim 6, characterized in that: The first seat body and the second seat body are connected and fixed by bolts.

8. The mechanical gripper according to claim 1, characterized in that: The clamping part also includes: a shell, a return spring, a pin and a slider, the clamp assembly includes two mutually engaged clamp bodies, a matching axial hole is opened in the middle of the two clamp bodies, the pin is passed through the axial hole, the two clamp bodies are hinged with the shell through the pin, the return spring is sleeved on the pin, the free end of the return spring is clamped with the clamp body, the clamp body is radially reduced from the middle toward the two ends, and the first end of the clamp body is used for clamping the spring; a slideway is provided on the opposite side of the two clamp bodies and in the direction toward the second end of the clamp body, the two ends of the slider are located on the slideway, and the slider is connected to the movable end of the driving mechanism.

9. The mechanical gripper according to claim 8, characterized in that: The driving mechanism comprises a push-pull cylinder, and the push-pull cylinder is fixed in the shell.

10. The mechanical gripper according to claim 9, characterized in that: The rotating shaft is a hollow sleeve, a first end of the hollow sleeve is connected to the air supply end of the push-pull cylinder, and a second end of the hollow sleeve is used to connect to a pneumatic connector to input a pneumatic pressure.

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