Material taking clamping jaw for suspension springs

Abstract

The utility model discloses a material taking clamping jaw for a suspension spring, which comprises a hinged frame, a left clamping arm and a right clamping arm are respectively hinged to two ends of the hinged frame, a driving cylinder is further arranged on the hinged frame, a piston rod of the driving cylinder is positioned between the left clamping arm and the right clamping arm, and a left hinged rod and a right hinged rod are hinged to the piston rod of the driving cylinder. The left hinge rod and the right hinge rod are hinged to the left clamping arm and the right clamping arm respectively, a fixing frame is arranged on the hinge frame, an electromagnet is arranged on the fixing frame and connected with a magnetic conductive chain, and the magnetic conductive chain is attracted to the spring when the electromagnet is powered on and magnetized. By means of the mode, when the suspension springs are taken, the situation that the surfaces of the suspension springs are damaged due to the fact that the springs are clamped too tightly can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spring material taking, in particular to a material taking jaw for a suspension spring. Background Art

[0002] During the production of cold coiled suspension helical springs, the cold coiling machine coils the steel wire to form the spring, and then the formed spring is clamped by the material taking jaw. The cold coiling machine cuts off the steel wire, and the material taking jaw takes away the spring, thus completing the handling of one spring.

[0003] However, the conventional jaw clamps the spring by setting a fixed force value, which is prone to being too large or too small, so that the spring is clamped too tightly, damaging the surface of the spring, or too loosely, causing the spring to fall off the jaw. Summary of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a material taking jaw for a suspension spring, which can avoid damaging the surface of the suspension spring due to over-tight clamping when taking the material of the suspension spring.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a material taking jaw for a suspension spring, including: a hinge frame, with a left jaw arm and a right jaw arm respectively hinged at both ends of the hinge frame. A driving cylinder is also arranged on the hinge frame, and the piston rod of the driving cylinder is between the left jaw arm and the right jaw arm. The piston rod of the driving cylinder is hinged with a left hinge rod and a right hinge rod, and the left hinge rod and the right hinge rod are respectively hinged with the left jaw arm and the right jaw arm. A fixed frame is arranged on the hinge frame, an electromagnet is arranged on the fixed frame, and the electromagnet is connected with a magnetic conduction chain. When the electromagnet is energized and magnetized, the magnetic conduction chain adsorbs the spring.

[0006] Preferably, the fixed frame includes a mounting plate and a connecting plate. The mounting plate is fixedly connected with the hinge frame, the connecting plate is fixedly connected to the mounting plate, the electromagnet is installed on the connecting plate, a hanging ear is arranged on the connecting plate, and the magnetic conduction chain is arranged on the hanging ear.

[0007] Preferably, the hanging ear is detachably connected with the connecting plate.

[0008] Preferably, the connecting plate and the hanging ear are made of ferromagnetic materials.

[0009] Preferably, the left jaw arm includes a left first side arm and a left second side arm. A left first connecting rod and a left second connecting rod are connected between the left first side arm and the left second side arm. The left hinge rod is hinged with the left first connecting rod, the left second connecting rod is arranged at the end of the left jaw arm far from the hinge frame, and a left clamping plate for supporting the spring is arranged on the left second connecting rod.

[0010] Preferably, a left connecting block extends from one side of the left clamping plate close to the left clamping arm. The left clamping plate is rotationally matched with the left second connecting rod through the left connecting block. A left support rod for supporting the position of the left clamping plate is hinged on the hinge frame, and the left connecting block is rotationally connected with one end of the left support rod far from the hinge frame.

[0011] Preferably, the right clamping arm includes a right first side arm and a right second side arm. A right first connecting rod and a right second connecting rod are connected between the right first side arm and the right second side arm. The right hinge rod is hinged with the right first connecting rod. The right second connecting rod is arranged at one end of the right clamping arm far from the hinge frame, and a right clamping plate for supporting the spring is arranged on the right second connecting rod.

[0012] Preferably, a right connecting block extends from one side of the right clamping plate close to the right clamping arm. The right clamping plate is rotationally matched with the right second connecting rod through the right connecting block. A right support rod for supporting the position of the right clamping plate is hinged on the hinge frame, and the right connecting block is rotationally connected with one end of the right support rod far from the hinge frame.

[0013] Preferably, a left concave arc matched with the side surface of the spring is arranged on one side of the left clamping plate close to the spring.

[0014] Preferably, a right concave arc matched with the side surface of the spring is arranged on one side of the right clamping plate close to the spring.

[0015] The beneficial effects of the present utility model are as follows: The opening degrees of the left clamping arm and the right clamping arm are respectively controlled by the driving cylinder through the left hinge rod and the right hinge rod, so as to control the clamping jaws to pick up the spring. The electromagnet is electrified to generate magnetism, and the spring is adsorbed through the magnetic conduction chain, so as to prevent the spring from falling off the clamping jaws, and further enable the clamping jaws not to clamp the spring too tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the whole from another perspective of the present utility model;

[0018] Figure 3 is the front view of the present utility model;

[0019] Figure 4 is Figure 2 the enlarged schematic diagram of part A in

[0020] The marks of each component in the drawings are as follows:

[0021] 1. Hinge frame; 11. Fixed frame; 111. Mounting plate; 112. Connecting plate; 12. Electromagnet; 13. Magnetic conduction chain; 14. Hanging ear;

[0022] 2. Driving cylinder; 21. Left hinge rod; 22. Right hinge rod;

[0023] 3. Left clamping arm; 31. Left first side arm; 32. Left second side arm; 33. Left first connecting rod; 34. Left second connecting rod; 35. Left clamping plate; 351. Left connecting block; 352. Left concave arc; 36. Left support rod;

[0024] 4. Right clamping arm; 41. Right first side arm; 42. Right second side arm; 43. Right first connecting rod; 44. Right second connecting rod; 45. Right clamping plate; 451. Right connecting block; 452. Right concave arc; 46. Right support rod. Detailed implementation manners

[0025] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

[0031] For the physical quantities in the formula, if there is no separate annotation, they should be understood as the basic quantities of the basic units of the International System of Units, or the derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0032] Embodiment:

[0033] Reference Figures 1 - 3 , a material taking jaw for a suspension spring, comprising: a hinge frame 1, a left clamping arm 3 and a right clamping arm 4 are respectively hinged at both ends of the hinge frame 1, a driving cylinder 2 is further installed on the hinge frame 1, the piston rod of the driving cylinder 2 is between the left clamping arm 3 and the right clamping arm 4, the piston rod of the driving cylinder 2 is hinged with a left hinge rod 21 and a right hinge rod 22, the left hinge rod 21 and the right hinge rod 22 are respectively hinged with the left clamping arm 3 and the right clamping arm 4, a fixing frame 11 is bolted on the hinge frame 1, an electromagnet 12 is screwed on the fixing frame 11, the electromagnet 12 is connected with a magnetic conduction chain 13, the magnetic conduction chain 13 can be an iron chain, and when the electromagnet 12 is electrified and magnetized, the magnetic conduction chain 13 adsorbs with the spring.

[0034] Reference Figures 1 - 3 When the spring needs to be picked up, the driving cylinder 2 extends the piston rod, thereby pressing down one end of the left hinge rod 21 and the right hinge rod 22, and then the other ends of the left hinge rod 21 and the right hinge rod 22 respectively push the left clamping arm 3 and the right clamping arm 4 outwards, thereby increasing the opening degree of the clamping jaw. Driven by the robotic arm, the clamping jaw is moved to the picking position. The plurality of magnetic conduction chains 13 are respectively in flexible contact with different parts of the spring. Then the driving cylinder 2 retracts the piston rod, pulling back the left hinge rod 21 and the right hinge rod 22, so that the left clamping arm 3 and the right clamping arm 4 retract, and then clamp the spring. At this time, the left clamping arm 3 and the right clamping arm 4 do not need to clamp the spring forcefully to avoid damaging the surface of the spring. Then the electromagnet 12 is energized to generate magnetism, and the spring is adsorbed through the magnetic conduction chain 13, thereby preventing the spring from falling off the clamping jaw.

[0035] Reference Figures 1 - 4 The fixing frame 11 includes a mounting plate 111 and a connecting plate 112. The mounting plate 111 is fixedly connected to the hinge frame 1. The connecting plate 112 is fixedly connected to the mounting plate 111 by bolts or welding. The electromagnet 12 is screwed to the connecting plate 112. A hanging ear 14 is installed on the connecting plate 112. The magnetic conduction chain 13 is installed on the hanging ear 14. The hanging ear 14 and the connecting plate 112 can be threadedly engaged with the connecting plate 112 for detachable connection, which is convenient for replacing the magnetic conduction chain 13 and clamping the magnetic conduction chain 13 on the connecting plate 112 by tightening the hanging ear 14. The connecting plate 112 and the hanging ear 14 are made of ferromagnetic materials, so that the magnetism of the electromagnet 12 can be conducted to the magnetic conduction chain 13, and then the magnetic conduction chain 13 can adsorb the spring.

[0036] Reference Figure 1 The left clamping arm 3 includes a left first side arm 31 and a left second side arm 32. A left first connecting rod 33 and a left second connecting rod 34 are fixedly connected between the left first side arm 31 and the left second side arm 32. The left hinge rod 21 is hinged to the left first connecting rod 33. The left second connecting rod 34 is installed at one end of the left clamping arm 3 away from the hinge frame 1. A left clamping plate 35 for supporting the spring is installed on the left second connecting rod 34. A left connecting block 351 extends from the side of the left clamping plate 35 close to the left clamping arm 3. The left clamping plate 35 is rotationally matched with the left second connecting rod 34 through the left connecting block 351, that is, the left second connecting rod 34 passes through the hole on the left connecting block 351 to realize the rotational matching between the left connecting block 351 and the left second connecting rod. A left support rod 36 for supporting the position of the left clamping plate 35 is hinged on the hinge frame 1. The left connecting block 351 is rotatably connected to one end of the left support rod 36 away from the hinge frame 1, that is, the left connecting block 351 takes the left second connecting rod 34 as the axis, and the left support rod 36 supports the position of the left connecting block 351. Thus, under the combined action of the left second connecting rod 34 and the left support rod 36, the position of the left clamping plate 35 is supported, so that the left clamping plate 35 has a certain degree of freedom during the movement of the left clamping arm 3, so that the left clamping plate 35 can better cooperate with the spring.

[0037] Reference Figure 2 , the right clamping arm 4 includes a right first side arm 41 and a right second side arm 42. A right first connecting rod 43 and a right second connecting rod 44 are fixedly connected between the right first side arm 41 and the right second side arm 42. The right articulated rod 22 is articulated with the right first connecting rod 43. The right second connecting rod 44 is installed at one end of the right clamping arm 4 away from the articulated frame 1. A right clamping plate 45 for supporting the spring is installed on the right second connecting rod 44. A right connecting block 451 extends from one side of the right clamping plate 45 close to the right clamping arm 4. The right clamping plate 45 is rotationally matched with the right second connecting rod 44 through the right connecting block 451, that is, the right second connecting rod 44 passes through the hole on the right connecting block 451 to realize the rotational matching between the right connecting block 451 and the right second connecting rod 44. A right support rod 46 for supporting the position of the right clamping plate 45 is articulated on the articulated frame 1. The right connecting block 451 is rotationally connected to one end of the right support rod 46 away from the articulated frame 1, that is, the right connecting block 451 takes the right second connecting rod 44 as the axis, and the right support rod 46 supports the position of the right connecting block 451. Thus, under the combined action of the right second connecting rod 44 and the right support rod 46, the position of the right clamping plate 45 is supported, so that the right clamping plate 45 has a certain degree of freedom during the movement of the right clamping arm 4, and thus the right clamping plate 45 can better cooperate with the spring.

[0038] Reference Figure 3 , in order to enable the left clamping plate 35 and the right clamping plate 45 to better stabilize the position of the spring, a left concave arc 352 that matches the side surface of the spring is provided on one side of the left clamping plate 35 close to the spring, and a right concave arc 452 that matches the side surface of the spring is provided on one side of the right clamping plate 45 close to the spring. Thus, while increasing the contact area between the left clamping plate 35 and the right clamping plate 45 and the spring through the left concave arc 352 and the right concave arc 452, it can also play a role in supporting the spring, can reduce the force for clamping the spring, further avoid damaging the surface of the spring due to excessive clamping, and at the same time improve the service life of the clamping jaw.

[0039] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A material taking gripper for a suspension spring, characterized in that Comprising: A hinge frame (1), with a left clamping arm (3) and a right clamping arm (4) respectively hinged at both ends of the hinge frame (1). A driving cylinder (2) is also provided on the hinge frame (1). The piston rod of the driving cylinder (2) is between the left clamping arm (3) and the right clamping arm (4). The piston rod of the driving cylinder (2) is hinged with a left hinge rod (21) and a right hinge rod (22). The left hinge rod (21) and the right hinge rod (22) are respectively hinged with the left clamping arm (3) and the right clamping arm (4). A fixing frame (11) is provided on the hinge frame (1). An electromagnet (12) is provided on the fixing frame (11). The electromagnet (12) is connected with a magnetic conduction chain (13). When the electromagnet (12) is energized and magnetized, the magnetic conduction chain (13) adsorbs with the spring.

2. The material taking jaw for a suspension spring according to claim 1, characterized in that: The fixing frame (11) includes a mounting plate (111) and a connecting plate (112). The mounting plate (111) is fixedly connected with the hinge frame (1). The connecting plate (112) is fixedly connected to the mounting plate (111). The electromagnet (12) is mounted on the connecting plate (112). A hanging ear (14) is provided on the connecting plate (112). The magnetic conduction chain (13) is arranged on the hanging ear (14).

3. The feeding gripper for a suspension spring according to claim 2, characterized in that: The hanging ear (14) is detachably connected with the connecting plate (112).

4. The feeding gripper for a suspension spring according to claim 3, characterized in that: The connecting plate (112) and the hanging ear (14) are made of ferromagnetic materials.

5. The material taking jaw for a suspension spring according to claim 1, characterized in that: The left clamping arm (3) includes a left first side arm (31) and a left second side arm (32). A left first connecting rod (33) and a left second connecting rod (34) are connected between the left first side arm (31) and the left second side arm (32). The left hinge rod (21) is hinged with the left first connecting rod (33). The left second connecting rod (34) is arranged at the end of the left clamping arm (3) far from the hinge frame (1). A left clamping plate (35) for holding the spring is provided on the left second connecting rod (34).

6. The material taking jaw for a suspension spring according to claim 5, characterized in that: A left connecting block (351) extends on the side of the left clamping plate (35) close to the left clamping arm (3). The left clamping plate (35) is rotationally matched with the left second connecting rod (34) through the left connecting block (351). A left support rod (36) for supporting the position of the left clamping plate (35) is hinged on the hinge frame (1). The left connecting block (351) is rotationally connected with the end of the left support rod (36) far from the hinge frame (1).

7. The material taking jaw for a suspension spring according to claim 1, wherein: The right clamping arm (4) includes a right first side arm (41) and a right second side arm (42). A right first connecting rod (43) and a right second connecting rod (44) are connected between the right first side arm (41) and the right second side arm (42). The right hinge rod (22) is hinged with the right first connecting rod (43). The right second connecting rod (44) is arranged at the end of the right clamping arm (4) far from the hinge frame (1). A right clamping plate (45) for holding the spring is provided on the right second connecting rod (44).

8. A material taking jaw for a suspension spring according to claim 7, characterized in that: On one side of the right splint (45) close to the right clamping arm (4), a right connecting block (451) extends. The right splint (45) is rotationally engaged with the right second connecting rod (44) through the right connecting block (451). A right support rod (46) for supporting the position of the right splint (45) is hinged on the hinge frame (1). The right connecting block (451) is rotationally connected to one end of the right support rod (46) away from the hinge frame (1).

9. The feeding gripper for a suspension spring according to claim 5, characterized in that: On one side of the left splint (35) close to the spring, a left concave arc (352) matching the side surface of the spring is provided.

10. The feeding gripper for a suspension spring according to claim 7, characterized in that: On one side of the right splint (45) close to the spring, a right concave arc (452) matching the side surface of the spring is provided.

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