Cam group precision wire feeding device

Abstract

The utility model relates to the technical field of automation equipment, in particular to a cam group precision wire feeding device, which comprises a fixed seat, the fixed seat is sequentially provided with a pay-off mechanism, a wire guide wheel group and a fixed block, the fixed block is provided with a wire feeding mechanism, a wire clamping mechanism and a wire cutting mechanism, and the wire cutting mechanism comprises an inlay suite, a wire cutting cam and a lever mechanism. A first pressing block and a cutter are arranged at the lower end of the embedded suite; the wire feeding mechanism comprises a wire feeding cam, a wire clamp and a first transmission mechanism; the wire clamping mechanism comprises a wire clamping cam, a wire clamp pressing block and a second transmission mechanism; a first driving motor is arranged at the bottom of the fixing seat, a transmission shaft of the first driving motor is respectively connected with the thread cutting cam, the thread feeding cam and the thread clamping cam in a driving mode, a plurality of actions can be completed through single driving force, the requirement of the whole thread feeding device for installation space is lowered, miniaturization of the device is achieved, the thread feeding precision is not affected, and the production efficiency is improved. And the length and position of wire feeding are ensured to meet production requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a precise wire feeding device for a cam group. Background Art

[0002] A wire feeding device refers to a device for conveying and controlling materials, which can improve the conveying efficiency of materials.

[0003] In the existing welding industry, the entire wire feeding process includes actions such as wire feeding, wire clamping, wire releasing, and cutting. However, in the existing equipment, each action is completed by a separate driving mechanism, which makes the entire wire feeding device require a large installation space and cannot achieve miniaturization of the equipment; in addition, each driving mechanism acts independently, which easily leads to errors during wire feeding, affects the wire feeding accuracy, and cannot ensure that the length and position of the wire feeding meet the production requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precise wire feeding device for a cam group aiming at the deficiencies of the existing technology. By simultaneously driving a wire feeding mechanism, a wire clamping mechanism, and a wire cutting mechanism to work by a first driving motor, multiple actions are completed with a single driving force, which not only reduces the requirement of the entire wire feeding device for installation space and realizes miniaturization of the equipment, but also does not affect the wire feeding accuracy and ensures that the length and position of the wire feeding meet the production requirements.

[0005] The utility model is realized through the following technical solutions. A precise wire feeding device for a cam group includes a fixed seat. The fixed seat is successively provided with a wire paying-off mechanism, a wire guiding wheel group, and a fixed block. The fixed block is provided with a wire feeding mechanism, a wire clamping mechanism, and a wire cutting mechanism. The wire cutting mechanism includes an inlaid kit and a wire cutting cam. A lever mechanism for driving the inlaid kit to move up and down is arranged between the inlaid kit and the wire cutting cam. A first pressing block and a cutting tool are arranged at the lower end of the inlaid kit. The wire feeding mechanism includes a wire feeding cam and a wire clamp. A first transmission mechanism is arranged between the wire feeding cam and the wire clamp. The wire clamping mechanism includes a wire clamping cam and a wire clamp pressing block. A second transmission mechanism is arranged between the wire clamping cam and the wire clamp pressing block. A first driving motor is arranged at the bottom of the fixed seat. The transmission shaft of the first driving motor successively passes through the wire cutting cam, the wire feeding cam, and the wire clamping cam. The transmission shaft of the first driving motor is respectively drivingly connected with the wire cutting cam, the wire feeding cam, and the wire clamping cam.

[0006] Preferably, the lever mechanism includes a lever. A first upright post and a second upright post are arranged at the upper end of the fixed block. A slider capable of moving up and down is arranged on the first upright post. A first cam follower is arranged on the slider. The first cam follower abuts against the wire cutting cam. One end of the lever is hinged to the slider. The middle of the lever is hinged to the second upright post. The other end of the lever is hinged to the inlaid kit.

[0007] Preferably, the fixing block is provided with a sliding groove, and a first slider and a second slider are arranged in the sliding groove. Both the first slider and the second slider are slidably connected to the sliding groove.

[0008] Preferably, the first transmission mechanism includes a push rod. A second cam follower is arranged at one end of the push rod. The second cam follower abuts against the wire feeding cam. The other end of the push rod is connected to the first slider. A support rod is arranged on the first slider. A through hole for the support rod to pass through is arranged in the middle of the wire clamp. The wire clamp can rotate around the support rod.

[0009] Preferably, the second transmission mechanism includes a third cam follower. The third cam follower is arranged at one end of the second slider. The third cam follower abuts against the wire clamping cam. One end of the wire clamp pressing block is fixedly connected to the second slider. The other end of the wire clamp pressing block abuts against the wire clamp.

[0010] Preferably, an abutting inclined surface is arranged at one end of the wire clamp pressing block, and an abutting arc surface is arranged at one end of the wire clamp. The abutting inclined surface of the wire clamp pressing block is arranged in abutting connection with the abutting arc surface of the wire clamp.

[0011] Preferably, the first cam follower, the second cam follower and the third cam follower are runners.

[0012] Preferably, the wire paying-off mechanism includes a wire supply wheel and a second driving motor drivingly connected to the wire supply wheel.

[0013] The beneficial effects of the present utility model: The transmission shaft of the first driving motor sequentially passes through the tangent cam, the wire feeding cam and the wire clamping cam. The first driving motor simultaneously drives the tangent cam, the wire feeding cam and the wire clamping cam to rotate. The rotation of the tangent cam cooperates with the lever mechanism to realize the up and down movement of the first pressing block and the cutter. The rotation of the wire feeding cam cooperates with the first transmission mechanism to drive the wire clamp to move towards the first pressing block and the cutter, and send the wire to the position of the first pressing block and the cutter. The rotation of the wire clamping cam cooperates with the second transmission mechanism to drive the wire clamp pressing block to further push and press the wire clamp, so as to realize the wire clamping action in cooperation with the first pressing block (the first pressing block, the wire clamp and the wire clamp pressing block are reset to realize the wire releasing action). While the first pressing block and the wire clamp perform the wire clamping action, the cutter completes the wire cutting process. The present utility model simultaneously drives the wire paying-off mechanism, the wire clamping mechanism and the wire cutting mechanism to work by the first driving motor. A single driving force realizes multiple actions, which not only reduces the requirement of the whole wire feeding device for the installation space, realizes the miniaturization of the equipment, but also does not affect the wire feeding accuracy, and ensures that the length and position of the wire feeding meet the production requirements. Description of the Drawings

[0014] Figure 1 is the exploded structural schematic diagram of the present utility model.

[0015] Figure 2 This is a schematic exploded view of another perspective of the present utility model.

[0016] Figure 3 This is a schematic structural view of the tangent mechanism of the present utility model.

[0017] Figure 4 This is a schematic structural view of the back side of the fixing block of the present utility model.

[0018] Figure 5 This is a schematic structural view of the front side of the fixing block of the present utility model.

[0019] Figure 6 This is a schematic structural view of the wire clamp and the wire clamp pressing block of the present utility model. Detailed implementation manners

[0020] Next, in conjunction with the appended Figure 1 to the appended Figure 6 , and the detailed implementation manners, the present utility model will be further described.

[0021] As Figures 1 to 2 shown, a precise wire feeding device for a cam group includes a fixed seat 1. The fixed seat 1 is sequentially provided with a wire releasing mechanism 2, a wire guiding wheel group 3, and a fixing block 4. The fixing block 4 is provided with a wire feeding mechanism 5, a wire clamping mechanism 6, and a tangent mechanism 7. The tangent mechanism 7 includes an inlay kit 71 and a tangent cam 72. A lever mechanism 73 for driving the up and down movement of the inlay kit 71 is arranged between the inlay kit 71 and the tangent cam 72. A first pressing block 74 and a cutter 75 are arranged at the lower end of the inlay kit 71. The wire feeding mechanism 5 includes a wire feeding cam 51 and a wire clamp 52. A first transmission mechanism 53 is arranged between the wire feeding cam 51 and the wire clamp 52. The wire clamping mechanism 6 includes a wire clamping cam 61 and a wire clamp pressing block 62. A second transmission mechanism 63 is arranged between the wire clamping cam 61 and the wire clamp pressing block 62. A first driving motor 8 is arranged at the bottom of the fixed seat 1. The transmission shaft of the first driving motor 8 sequentially passes through the tangent cam 72, the wire feeding cam 51, and the wire clamping cam 61. The transmission shaft of the first driving motor 8 is respectively drivingly connected to the tangent cam 72, the wire feeding cam 51, and the wire clamping cam 61.

[0022] In this embodiment, the transmission shaft of the first driving motor 8 sequentially passes through the tangent cam 72, the wire feeding cam 51, and the wire clamping cam 61. The first driving motor 8 simultaneously drives the tangent cam 72, the wire feeding cam 51, and the wire clamping cam 61 to rotate. The rotation of the tangent cam 72 cooperates with the lever mechanism 73 to realize the up and down movement of the first pressing block 74 and the cutter 75. The rotation of the wire feeding cam 51 cooperates with the first transmission mechanism 53 to drive the wire clamp 52 to move towards the first pressing block 74 and the cutter 75, sending the wire to the position of the first pressing block 74 and the cutter 75. The rotation of the wire clamping cam 61 cooperates with the second transmission mechanism 63 to drive the wire clamp pressing block 62 to further push and press the wire clamp 52, realizing the wire clamping action in cooperation with the first pressing block 74 (the first pressing block 74, the wire clamp 52, and the wire clamp pressing block 62 reset to realize the wire releasing action). While the first pressing block 74 and the wire clamp 52 perform the wire clamping action, the cutter 75 completes the wire cutting process. By simultaneously driving the wire feeding mechanism 5, the wire clamping mechanism 6, and the wire cutting mechanism 7 to work with the first driving motor 8, a single driving force can complete multiple actions, which not only reduces the requirement of the entire wire feeding device for the installation space, realizes the miniaturization of the equipment, but also does not affect the wire feeding accuracy, ensuring that the length and position of the wire feeding meet the production requirements.

[0023] As Figure 3 shown, in this embodiment, the lever mechanism 73 includes a lever 731. At the upper end of the fixed block 4, a first column 41 and a second column 42 are provided. The first column 41 is provided with a slider 9 that can move up and down. The slider 9 is provided with a first cam follower 91. The first cam follower 91 abuts against the tangent cam 72. One end of the lever 731 is hinged to the slider 9. The middle of the lever 731 is hinged to the second column 42. The other end of the lever 731 is hinged to the inlay kit 71. When the tangent cam 72 rotates, the protruding part of the tangent cam 72 drives the up and down movement of the slider 9. Using the fulcrum of the lever 731 and the second column 42, the up and down movement of the first pressing block 74 and the cutter 75 is realized. The downward movement of the first pressing block 74 and the cutter 75 cooperates with the wire clamp 52 to complete the wire clamping and wire cutting actions.

[0024] As Figures 4 to 5 shown, in this embodiment, the fixed block 4 is provided with a chute. In the chute, a first slider 10 and a second slider 11 are provided. Both the first slider 10 and the second slider 11 are slidably connected to the chute.

[0025] In this embodiment, the first transmission mechanism 53 includes a push rod 531. One end of the push rod 531 is provided with a second cam follower 532, and the second cam follower 532 abuts against the wire-feeding cam 51. The other end of the push rod 531 is connected to the first slider 10. The first slider 10 is provided with a support rod 101. A through hole for the support rod 101 to pass through is provided in the middle of the wire clamp 52. The wire clamp 52 can rotate around the support rod 101. When the wire-feeding cam 51 rotates, the protruding part of the wire-feeding cam 51 will drive the push rod 531, causing the first slider 10 to slide along the chute, and sending the wire to the cutting knife 75. Since the clamping cam 61 rotates and cooperates with the second transmission mechanism 63 to drive the wire clamp pressing block 62 to further push and press one end of the wire clamp 52, the middle of the wire clamp 52 rotates around the support rod 101, and the other end of the wire clamp 52 moves towards the first pressing block 74 (similar to the clamping action of a clip), and cooperates with the first pressing block 74 to clamp the wire.

[0026] In this embodiment, the second transmission mechanism 63 includes a third cam follower 631. The third cam follower 631 is arranged at one end of the second slider 11, and the third cam follower 631 abuts against the clamping cam 61. One end of the wire clamp pressing block 62 is fixedly connected to the second slider 11, and the other end of the wire clamp pressing block 62 abuts against the wire clamp 52. When the clamping cam 61 rotates, the protruding part of the clamping cam 61 will drive the second slider 11 to slide along the chute, further pushing and pressing one end of the wire clamp pressing block 62 against the wire clamp 52. The middle of the wire clamp 52 rotates around the support rod 101, and the other end of the wire clamp 52 moves towards the first pressing block 74 (similar to the clamping action of a clip), and cooperates with the first pressing block 74 to clamp the wire.

[0027] As Figure 6 shown, further, in this embodiment, one end of the wire clamp pressing block 62 is provided with an abutting inclined surface 621, and one end of the wire clamp 52 is provided with an abutting arc surface 521. The abutting inclined surface 621 of the wire clamp pressing block 62 is arranged to abut against the abutting arc surface 521 of the wire clamp 52. When the clamping cam 61 drives the wire clamp pressing block 62 to further push and press the wire clamp 52, the abutting arc surface 521 of the wire clamp 52 rolls and cooperates on the abutting inclined surface 621 of the wire clamp pressing block 62. The middle of the wire clamp 52 rotates around the support rod 101, and the other end of the wire clamp 52 moves towards the first pressing block 74 (similar to the clamping action of a clip), and cooperates with the first pressing block 74 to clamp the wire.

[0028] The first cam follower 91, the second cam follower 532 and the third cam follower 631 of the present utility model are runners, realizing rolling cooperation with the three cams.

[0029] In this embodiment, the wire releasing mechanism 2 includes a wire supply wheel 21 and a second driving motor 22 drivingly connected to the wire supply wheel 21. The second driving motor 22 drives the wire supply wheel 21 to release the wire.

[0030] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, based on the idea of the present utility model, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation on the present utility model.

Claims

1. A precise wire feeding device for a cam group, characterized in that: It includes a fixed base, on which a wire pay-off mechanism, a wire guide wheel set and a fixed block are sequentially arranged. The fixed block is provided with a wire feeding mechanism, a wire clamping mechanism and a wire cutting mechanism. The wire cutting mechanism includes an inlaid kit and a wire cutting cam. A lever mechanism for driving the inlaid kit to move up and down is arranged between the inlaid kit and the wire cutting cam. A first pressing block and a cutting knife are arranged at the lower end of the inlaid kit. The wire feeding mechanism includes a wire feeding cam and a wire clamp. A first transmission mechanism is arranged between the wire feeding cam and the wire clamp. The wire clamping mechanism includes a wire clamping cam and a wire clamp pressing block. A second transmission mechanism is arranged between the wire clamping cam and the wire clamp pressing block. A first driving motor is arranged at the bottom of the fixed base. The transmission shaft of the first driving motor sequentially passes through the wire cutting cam, the wire feeding cam and the wire clamping cam. The transmission shaft of the first driving motor is respectively drivingly connected to the wire cutting cam, the wire feeding cam and the wire clamping cam.

2. The precision wire feeding device for a cam set according to claim 1, wherein: The lever mechanism includes a lever. A first upright post and a second upright post are arranged at the upper end of the fixed block. A slider capable of moving up and down is arranged on the first upright post. The slider is provided with a first cam follower, which abuts against the wire cutting cam. One end of the lever is hinged to the slider, the middle part of the lever is hinged to the second upright post, and the other end of the lever is hinged to the inlaid kit.

3. The precision wire feeding device for a cam group according to claim 2, characterized in that: The fixed block is provided with a chute, and a first slider and a second slider are arranged in the chute. Both the first slider and the second slider are slidably connected to the chute.

4. A precision wire feeding device for a cam set according to claim 3, characterized in that: The first transmission mechanism includes a push rod. A second cam follower is arranged at one end of the push rod, which abuts against the wire feeding cam. The other end of the push rod is connected to the first slider. A support rod is arranged on the first slider. A through hole for the support rod to pass through is arranged in the middle of the wire clamp. The wire clamp can rotate around the support rod.

5. The precision wire feeding device for a cam group according to claim 4, wherein: The second transmission mechanism includes a third cam follower, which is arranged at one end of the second slider and abuts against the wire clamping cam. One end of the wire clamp pressing block is fixedly connected to the second slider, and the other end of the wire clamp pressing block abuts against the wire clamp.

6. A precise wire feeding device for a cam set according to claim 1, characterized in that: One end of the wire clamp pressing block is provided with an abutting inclined surface, and one end of the wire clamp is provided with an abutting arc surface. The abutting inclined surface of the wire clamp pressing block is arranged in abutment with the abutting arc surface of the wire clamp.

7. A precise wire feeding device for a cam set according to claim 5, characterized in that: The first cam follower, the second cam follower and the third cam follower are runners.

8. The precision wire feeding device for a cam set according to claim 1, characterized in that: The wire pay-off mechanism includes a wire supply wheel and a second driving motor drivingly connected to the wire supply wheel.

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