Mechanical arm moving mechanism of spring machine

Abstract

The utility model discloses a mechanical arm moving mechanism of a spring machine, which comprises a panel, a first moving mechanism, a second moving mechanism and a third moving mechanism, the upper part of the panel is provided with a groove for mounting the first moving mechanism, and the second moving mechanism is slidably mounted in the first moving mechanism and moves back and forth relative to the panel; and the third moving mechanism is movably installed at one end of the second moving mechanism, is parallel to the panel in the vertical direction and moves left and right relative to the panel in the groove, a cutter for machining the steel wire rod is installed at the end of the third moving mechanism, and the third moving mechanism drives the cutter to move up and down relative to the panel. According to the utility model, the first moving mechanism, the second moving mechanism and the third moving mechanism are matched to accurately control the position and the movement of the cutter on the cutter assembly, so that the spring machine can ensure the consistency and the quality of springs, and meanwhile, the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring machine equipment, concretely is the mechanical arm moving mechanism of spring machine. BACKGROUND

[0002] Spring machine is a kind of high-precision automatic equipment, is specially used to manufacture various elastic elements, including compression spring, tensile spring and torsion spring etc..In the manufacturing process of spring, spring machine is transported along specific direction to steel wire by feeding mechanism, and is accurately controlled the winding path of steel wire by reducing mechanism.Utilize reducing mechanism to make tool can be in multiple positions from different angles to steel wire exert push force, to realize the accurate winding of steel wire.However, in traditional spring machine, the advancing direction of tool is fixed, this limits its flexibility in manufacturing certain complex variable diameter spring, such as middle convex, conical or variable diameter spiral spring.In order to meet the needs of production variable diameter spring, need tool can be dynamically adjusted position and movement path in winding process according to the design requirement of spring. SUMMARY

[0003] The utility model provides a kind of simple structure, can make the tool of resistance push steel wire move in any position, and then process middle convex or conical spring, variable diameter spiral spring and other variable diameter spring's spring machine's mechanical arm moving mechanism.

[0004] The utility model discloses a kind of mechanical arm moving mechanism of spring machine, including panel, first moving mechanism, second moving mechanism and third moving mechanism, the recess for installing first moving mechanism is equipped in the upper portion of the panel, the second moving mechanism is slidably installed in first moving mechanism, and it moves back and forth relative to panel;Third moving mechanism is movably installed in one end of second moving mechanism and with panel keeps vertical direction parallel, it moves left and right relative to panel in recess, the end of third moving mechanism is installed with the tool that processes steel wire rod, third moving mechanism drives tool to move up and down relative to panel.

[0005] Furthermore, the first moving mechanism includes an outer left side plate and an outer right side plate vertically mounted on the back of the panel and near the two sides of the groove, and an outer bottom plate connected to the bottom of the outer left side plate and the outer right side plate. It also includes an inner left side plate and an inner right side plate that can extend forward through the groove relative to the panel. The inner left side plate and the inner right side plate are slidably mounted on the inner sides of the outer left side plate and the outer right side plate, respectively. An inner bottom plate is connected to the bottom of the inner left side plate and the inner right side plate and slidably mounted on the outer bottom plate. The outer bottom plate is equipped with a first motor that drives the inner left side plate, the inner right side plate and the inner bottom plate to move back and forth relative to the panel, and a lead screw driven by the motor to rotate. The outer bottom plate, the outer left side plate and the outer right side plate are each equipped with a first sliding assembly that is slidably connected to the inner bottom plate, the inner left side plate and the inner right side plate, respectively. The inner bottom plate, the inner left side plate and the inner right side plate are also provided with a support plate for mounting the second moving mechanism at one end near the panel.

[0006] Furthermore, the first sliding assembly includes guide rails mounted on the outer base plate, outer left side plate, and outer right side plate, and sliders mounted on the inner base plate, inner left side plate, and inner right side plate that slide in cooperation with the guide rails.

[0007] Furthermore, the second moving mechanism includes a second motor mounted on the back of the support plate, the output shaft of the second motor being connected to a reducer, and a motor mount mounted on the support plate. The motor mount is provided with a yaw wheel rotatably connected to the output shaft of the reducer. The front end face of the yaw wheel is eccentrically provided with a yaw convex shaft. It also includes a second sliding assembly slidably connected to the third moving mechanism, and a connecting rod that drives the third moving mechanism to move left and right relative to the panel. One end of the connecting rod is rotatably sleeved on the yaw convex shaft, and the other end of the connecting rod is rotatably sleeved on the connecting shaft of the third moving mechanism.

[0008] Furthermore, the second sliding assembly includes a guide rail and a slider mounted on one side of the support plate near the panel, with the slider fixedly mounted on the third moving mechanism.

[0009] Further, the third moving mechanism comprises a mounting plate connected with the slider of the second sliding assembly, a third motor and a connecting shaft for connecting the connecting rod sleeve are mounted on the back of the mounting plate, the output shaft of the third motor is connected with a third speed reducer, a third motor base is mounted on the mounting plate, a third wobble wheel is arranged on the third motor base and rotationally connected with the output shaft of the third speed reducer, a third wobble shaft is arranged on the front end surface of the third wobble wheel and eccentrically arranged, and a third connecting rod assembly for driving the third sliding assembly to move up and down and connecting the third sliding assembly and the third wobble shaft is further included.

[0010] Further, the third connecting rod assembly comprises a screw connecting block rotationally sleeved with the third wobble shaft, a blocking block fixed on the end of the slider away from the tool assembly, and the fixed shaft is arranged on the blocking block, the blocking block and the screw connecting block are connected through an adjustable screw, one end of the screw is provided with a thread and is sleeved with two nuts capable of rotationally clamping the screw connecting block, and the end of the screw connected with the blocking block is provided with a connecting hole sleeved with the fixed shaft.

[0011] Further, two tension spring fixing rods are arranged on the end of the mounting plate close to the third wobble wheel, a tension spring fixing block is arranged on the blocking block, and a tension spring is arranged between the two ends of the tension spring fixing block and the tension spring fixing rods.

[0012] Further, the opposite inner upper parts of the inner left side plate and the inner right side plate are provided with guide wheels, and the opposite inner upper parts of the outer left side plate and the outer right side plate are provided with pressing plates abutting against the guide wheels.

[0013] Further, the guide rails mounted on the outer left side plate and the outer right side plate protrude in the direction of the panel and are flush with the plane of the panel.

[0014] The mechanical arm moving mechanism of the spring machine can make the cutter clamped on the cutter assembly move up and down, left and right, forward and backward relative to the panel through the cooperation of the first moving mechanism, the second moving mechanism and the third moving mechanism, and realize the arbitrary movement of the cutter in three axes and six directions, so that the cutter can dynamically adjust the position and movement path during the winding process according to the design requirements of the spring to be produced, and the flexibility makes the spring machine be able to produce more diversified spring shapes to meet the specific needs of different industrial applications. The first moving mechanism, the second moving mechanism and the third moving mechanism are cooperated to accurately control the position and movement of the cutter on the cutter assembly, so that the spring machine can ensure the consistency and quality of the spring, and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall installation of the mechanical arm moving mechanism of a spring machine.

[0016] Figure 2 It is a schematic diagram of the panel structure.

[0017] Figure 3 It is a schematic diagram of the mechanical arm moving mechanism structure of a spring machine.

[0018] Figure 4 It is an exploded schematic diagram of the mechanical arm moving mechanism structure of a spring machine.

[0019] Figure 5 It is a schematic diagram of the first moving mechanism structure.

[0020] Figure 6 It is a schematic diagram of the second moving mechanism structure Figure 1 .

[0021] Figure 7 It is a schematic diagram of the second moving mechanism structure Figure 2 .

[0022] Figure 8 It is a schematic diagram of the third moving mechanism structure Figure 1 .

[0023] Figure 9 It is a schematic diagram of the third moving mechanism structure Figure 2 .

[0024] Figure 10 It is a schematic diagram of the third sliding block assembly structure.

[0025] Figure 11 It is a schematic diagram of the third connecting rod assembly structure.

[0026] Figure 12 It is a schematic diagram of the cutter assembly structure. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0028] In the description of the utility model, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0029] As shown in Figures 1-12 A mechanical arm moving mechanism of a spring machine, comprising a panel 1, a first moving mechanism 2, a second moving mechanism 3 and a third moving mechanism 4, the upper portion of the panel 1 is provided with a groove 5 for mounting the first moving mechanism, the second moving mechanism is slidably mounted in the first moving mechanism and moves forward and backward relative to the panel, the third moving mechanism is movably mounted at one end of the second moving mechanism and is parallel to the vertical direction of the panel, moves left and right in the groove relative to the panel, the end of the third moving mechanism is provided with a cutter 6 for processing steel wire rod, and the third moving mechanism drives the cutter to move up and down relative to the panel. Through the cooperation of the first moving mechanism, the second moving mechanism and the third moving mechanism, the cutter clamped on the cutter assembly can move up, down, left, right, forward and backward relative to the panel, realizing the arbitrary movement of the cutter in 3 axes and 6 directions, so that the cutter can dynamically adjust the position and movement path during the winding process according to the design requirements of the spring to be produced, and the flexibility makes the spring machine can produce more diversified spring shapes to meet the specific needs of different industrial applications. The utility model precisely controls the position and movement of the cutter on the cutter assembly through the cooperation of the first moving mechanism, the second moving mechanism and the third moving mechanism, so that the spring machine can ensure the consistency and quality of the spring, and improve the production efficiency.

[0030] The first moving mechanism 2 comprises outer left side plate 201 and outer right side plate 202 vertically installed on the back of the panel 1 and close to the both side edges of the groove 5, outer bottom plate 203 connected and installed on the bottom of the outer left side plate 201 and the outer right side plate 202, and inner left side plate 204 and inner right side plate 205 which can protrude forward from the groove 5 through the opposite panel 1, wherein the inner left side plate and the inner right side plate are respectively slidably installed on the opposite inner side of the outer left side plate and the outer right side plate, and inner bottom plate 206 connected and installed on the bottom of the inner left side plate and the inner right side plate and slidably installed on the outer bottom plate; the outer bottom plate is installed with first motor 207 driving the inner left side plate, the inner right side plate and the inner bottom plate to move forward and backward relative to the panel, and lead screw 208 driven to rotate by the motor; specifically, the lead screw is a metal rod with helical line, the rotation of which can drive the nut 209 matched therewith to move linearly, the nut is connected with the inner bottom plate to drive the inner bottom plate to move; the outer bottom plate, the outer left side plate and the outer right side plate are all installed with first sliding assembly 210 slidably connected with the inner bottom plate, the inner left side plate and the inner right side plate respectively, and the inner bottom plate, the inner left side plate and the inner right side plate are further provided with support plate 211 close to the panel for installing the second moving mechanism. The first sliding assembly comprises guide rails installed on the outer bottom plate, the outer left side plate and the outer right side plate, and sliding blocks installed on the inner bottom plate, the inner left side plate and the inner right side plate and slidably matched with the guide rails.

[0031] The second moving mechanism 3 comprises second motor 301 installed on the back of the support plate 211, output shaft of the second motor 301 connected with speed reducer 302, and motor base 303 installed on the support plate, eccentricity wheel 304 rotatably connected with the output shaft of the speed reducer arranged on the front end surface of the eccentricity wheel, eccentricity protruding shaft 305 arranged on the eccentricity wheel, second sliding assembly 306 slidably connected with the third moving mechanism, and connecting rod 307 driving the third moving mechanism to move left and right relative to the panel, one end of the connecting rod rotatably sleeved on the eccentricity protruding shaft, and the other end of the connecting rod rotatably sleeved on the connecting shaft 422 of the third moving mechanism. The second sliding assembly comprises guide rails and sliding blocks installed on the side surface of the support plate close to the panel, and the sliding blocks are fixedly installed on the third moving mechanism.

[0032] The connecting rod 307 is slotted in the middle, and the side edges are provided with screws penetrating the slot, and by tightening the screws, the eccentricity protruding shaft at one end of the connecting rod and the bearing rotatably sleeved on the connecting rod at the other end can be clamped, so that the gap generated by the wear of the connecting rod when doing reciprocating motion can be offset.

[0033] The third moving mechanism 4 comprises a mounting plate 401 connected with the slider of the second sliding assembly 306, a third motor 402 and a connecting shaft 422 for sleeving the connecting rod 307 are mounted on the back of the mounting plate 401, the output shaft of the third motor is connected with a third speed reducer 403, and a third motor base 404 is mounted on the mounting plate, a third wobble wheel 405 is arranged on the third speed reducer, a third wobble shaft 406 is arranged on the front end surface of the third wobble wheel, a third sliding assembly 407 for driving the cutter 6 to move up and down is arranged, and a third connecting rod assembly 408 for connecting the third sliding assembly and the third wobble shaft is arranged.

[0034] The third connecting rod assembly 408 comprises a screw connecting block 415 rotatably sleeved with the third wobble shaft, a blocking block 416 fixed on the end of the slider away from the cutter assembly, and a fixing shaft is arranged on the blocking block, the blocking block and the screw connecting block are connected through an adjustable screw 417, one end of the screw passing through the screw connecting block is provided with a thread and is sleeved with two nuts 418 which can rotatably clamp the screw connecting block, and the end of the screw connected with the blocking block is provided with a connecting hole sleeved on the fixing shaft. The screw can adjust the distance between the blocking block and the third wobble shaft through the cooperation of the nut, so as to adjust the stroke length of the third connecting rod assembly.

[0035] The side surface of the screw connecting block is provided with a slot, and the bolt passes through the slot to lock and clamp the third wobble shaft, so that the gap of the third wobble shaft after long-time operation can be prevented.

[0036] Two tension spring fixing rods 419 are arranged on the end of the mounting plate 401 close to the third wobble wheel, a tension spring fixing block 420 is arranged on the blocking block, and a tension spring 421 is arranged between the two ends of the tension spring fixing block and the tension spring fixing rod. After the third motor drives the third wobble wheel to reciprocate for a long time, the stroke will have a certain deviation, and the zero position needs to be adjusted regularly. By arranging the tension spring on the two sides of the blocking block, the blocking block can be directly pulled to the zero position, so that the error of the zero position during back-and-forth movement can be avoided.

[0037] The opposite inner upper parts of the inner left side plate 204 and the inner right side plate 205 are provided with guide wheels 212, and the opposite inner upper parts of the outer left side plate and the outer right side plate are provided with pressing plates 213 abutting against the guide wheels, so that when the first moving mechanism drives the second moving mechanism and the third moving mechanism to move forward, the center of gravity moves forward, and the rear part is light, the upward buckling of the inner left side plate and the inner right side plate can be prevented by the cooperation of the pressing plates and the guide wheels, the second moving mechanism and the third moving mechanism can be kept horizontal, the machining precision and the production safety can be ensured.

[0038] The first sliding assembly is installed on the guide rails on the outer left side plate and the outer right side plate and extends to the direction of the panel to be flush with the plane of the panel, so that the center of gravity of the whole mechanism moving forward and backward is more stable.

[0039] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A mechanical arm moving mechanism of a spring machine, characterized by, The utility model relates to a steel wire processing device, including panel (1), first mobile mechanism (2), second mobile mechanism (3) and third mobile mechanism (4), the upper portion of panel (1) is equipped with the recess (5) for installing first mobile mechanism, second mobile mechanism is slidably installed in first mobile mechanism, and the relative panel moves back and forth, third mobile mechanism is slidably installed in one end of second mobile mechanism and with the panel keeps vertical direction parallel, in the recess relative panel moves left and right, the end of third mobile mechanism is installed with the cutter (6) that carries out the processing of steel wire material, and third mobile mechanism drives cutter relative panel moves up and down.

2. The spring machine's arm moving mechanism according to claim 1, characterized in that, The first mobile mechanism (2) includes the outer left side plate (201) and the outer right side plate (202) that are vertically installed on the back of the panel (1) and close to the edge of the recess (5) on both sides, and the outer bottom plate (203) is connected and installed at the bottom of the outer left side plate (201) and the outer right side plate (202), and further includes the inner left side plate (204) and the inner right side plate (205) that can pass through the panel (1) and extend forward from the recess (5), wherein the inner left side plate and the inner right side plate are slidably installed on the opposite inner side of the outer left side plate and the outer right side plate respectively, and the inner bottom plate (206) is connected and installed at the bottom of the inner left side plate and the inner right side plate and is slidably installed on the outer bottom plate; the outer bottom plate is installed with the first motor (207) for driving the inner left side plate, the inner right side plate and the inner bottom plate to move back and forth relative to the panel, and the lead screw (208) driven by the motor; the outer bottom plate, the outer left side plate and the outer right side plate are all installed with the first sliding assembly (210) slidably connected with the inner bottom plate, the inner left side plate and the inner right side plate respectively, and the support plate (211) for installing the second mobile mechanism is further provided at one end of the inner bottom plate, the inner left side plate and the inner right side plate close to the panel.

3. The spring machine's arm moving mechanism according to claim 2, characterized in that, The first sliding assembly includes the guide rail installed on the outer bottom plate, the outer left side plate and the outer right side plate, and the sliding block installed on the inner bottom plate, the inner left side plate and the inner right side plate and slidably matched with the guide rail.

4. The spring machine's arm moving mechanism according to claim 2, characterized in that, The second mobile mechanism (3) includes the second motor (301) installed on the back of the support plate (211), the output shaft of the second motor (301) is connected with the speed reducer (302), and the motor seat (303) is installed on the support plate, the eccentric wheel (304) is provided on the front end surface of the eccentric wheel and is rotatably connected with the output shaft of the speed reducer, the eccentric wheel is provided with the eccentric shaft (305) on the front end surface, further includes the second sliding assembly (306) slidably connected with the third mobile mechanism, and the connecting rod (307) for driving the third mobile mechanism to move left and right relative to the panel, one end of the connecting rod is rotatably sleeved on the eccentric shaft, and the other end of the connecting rod is rotatably sleeved on the connecting shaft (422) of the third mobile mechanism.

5. The spring machine's arm moving mechanism according to claim 4, characterized in that, The second sliding assembly includes the guide rail and the sliding block installed on the side surface of the support plate close to the panel, and the sliding block is fixedly installed on the third mobile mechanism.

6. The spring machine's arm moving mechanism according to claim 4, characterized in that, The third moving mechanism (4) comprises a mounting plate (401) connected with the slider of the second sliding assembly (306), a third motor (402) and a connecting shaft (422) for sleeving the connecting rod (307) are mounted on the back of the mounting plate (401), the output shaft of the third motor is connected with a third speed reducer (403), a third motor base (404) is mounted on the mounting plate, a third whirling roller (405) is arranged on the third speed reducer, a third whirling protruding shaft (406) is arranged on the front end surface of the third whirling roller, a third sliding assembly (407) for driving the cutter (6) to move up and down and a third connecting rod assembly (408) connecting the third sliding assembly and the third whirling protruding shaft are further arranged; the third sliding assembly (407) comprises a sliding block (409) arranged on the mounting plate and away from the third motor base and a slider (410) sliding relative to the sliding block, the upper end of the sliding block is provided with a slider pressing plate (412) matched with the sliding block to form a sliding groove, the slider is provided with a fixed shaft (413) for sleeving the third connecting rod assembly and a cutter assembly (414) for mounting the cutter, one end of the third connecting rod assembly is rotatably sleeved with the third whirling protruding shaft (406), and the other end is rotatably sleeved with the fixed shaft (413).

7. The spring machine's arm moving mechanism according to claim 6, characterized in that, The third connecting rod assembly (408) comprises a screw connecting block (415) rotatably sleeved with the third whirling protruding shaft, a blocking block (416) fixed on the end of the slider away from the cutter assembly, the fixed shaft is arranged on the blocking block, and the blocking block and the screw connecting block are connected through an adjustable screw (417), wherein one end of the screw passing through the screw connecting block is provided with a screw thread and sleeved with two nut (418) capable of rotatably clamping the screw connecting block, and one end of the screw connected with the blocking block is provided with a connecting hole sleeved with the fixed shaft.

8. The spring machine's arm moving mechanism according to claim 7, characterized in that, The mounting plate (401) is provided with two tension spring fixing rods (419) at the end close to the third whirling roller, the blocking block is provided with a tension spring fixing block (420), and the two ends of the tension spring fixing block are provided with a tension spring (421) between the tension spring fixing rods.

9. The spring machine's arm moving mechanism according to claim 2, characterized in that, The opposite inner upper parts of the inner left side plate (204) and the inner right side plate (205) are provided with guide wheels (212), and the opposite inner upper parts of the outer left side plate and the outer right side plate are provided with downward pressing plates (213) abutting against the guide wheels.

10. The spring machine's arm moving mechanism according to claim 3, characterized in that, The first sliding assembly is installed on the guide rails on the outer left side plate and the outer right side plate and extends to the plane of the panel.

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