A stringing and separating device for ring-shaped workpiece heat treatment

Abstract

The utility model discloses a kind of stringing and separating device for annular workpiece heat treatment, belong to heat treatment auxiliary equipment technical field. Including material pole bearing platform, material loading box, be connected in the blanking passage of vibrating disk blanking outlet and transfer clamp;The top of material loading box is provided with several material cavities in linear array arrangement, material loading box can be rotated to below blanking passage, and move along the array direction of several material cavities, annular workpiece can be transported one by one in blanking passage to stand in material cavity;Material loading box is provided with rod slot, and several transfer clamps can transfer stringing rod placed on material pole bearing platform to the through hole of the middle of several annular workpieces threaded in rod slot, and transfer stringing rod and several annular workpieces to material pole bearing platform.The utility model of a kind of stringing and separating device for annular workpiece heat treatment can realize the full-process automation operation of annular workpiece from ordered feeding, material distribution to stringing, replace manual production efficiency greatly, reduce labor intensity.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat treatment auxiliary equipment, specifically relating to a serially arranged device for heat treatment of annular workpieces. Background Technology

[0002] Ring-shaped workpieces (such as bearing rings, gear rings, and ring flanges) are widely used in the machinery manufacturing industry. To improve their strength, hardness, and wear resistance, heat treatment processes such as quenching and tempering are required during production. Before heat treatment, the ring-shaped workpieces need to be strung together on a stringing rod in preparation for heat treatment.

[0003] The existing stringing and sorting process for ring-shaped workpieces largely relies on manual operation. Operators must grasp the ring-shaped workpieces one by one and manually slip them onto the stringing rod. This method has many drawbacks: firstly, it is extremely inefficient, with limited manual stringing speed, making it unsuitable for large-scale production; secondly, manual stringing is labor-intensive, requiring operators to repeatedly bend over, grasp, and slip the workpieces for extended periods, easily leading to fatigue and further impacting production efficiency and product quality.

[0004] Therefore, there is an urgent need for an automated stringing and sorting device to achieve efficient stringing and sorting of ring-shaped workpieces before heat treatment. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a serial assembly and sorting device for heat treatment of annular workpieces, which can realize the fully automated operation of the annular workpiece from orderly feeding and sorting to serial assembly, replacing manual labor, greatly improving production efficiency and reducing labor intensity.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a serial assembly and sorting device for heat treatment of annular workpieces, including a material rod support platform, a material box, a material feeding channel connected to the feeding port of the vibratory feeder, and a transfer clamp capable of vertical lifting and horizontal movement. The top of the material carrier box is provided with several material cavities arranged in a linear array. The material carrier box can rotate to the bottom of the material unloading channel and move along the array direction of the several material cavities. The material unloading channel can transport annular workpieces one by one to be placed upright in the material cavities. The material carrier box is provided with a through-rod slot that can pass through several material cavities, and the through-rod slot on the material carrier box can be rotated to correspond to the horizontal movement path of the transfer fixture. Several transfer fixtures can transfer the string rod placed on the material rod support platform to the through hole provided in the through-rod slot and the middle of several annular workpieces, and transfer the string rod and several annular workpieces to the material rod support platform.

[0007] Optionally, the feeding channel includes a feeding pipe with a built-in sliding cavity, a first stop block that can be moved to block the bottom opening of the feeding pipe, and a second stop block that can be moved to be inserted into the sliding cavity and support the material coming from above into the sliding cavity; The top opening of the feeding pipe is connected to the feeding port of the vibratory plate. The annular workpiece that enters the cavity from the top of the sliding cavity can slide down to the bottom of the sliding cavity. A material distribution chamber for accommodating an annular workpiece is left between the first stop and the second stop.

[0008] Optionally, the feeding pipe is equipped with a sensor corresponding to the dispensing chamber.

[0009] Optionally, it also includes a rotating platform, on the top of which two first linear drive units are symmetrically arranged along its rotational axis, and each first linear drive unit has the material carrier box at its output end; the first linear drive unit is used to drive the material carrier box to move along the array direction of the plurality of material cavities arranged thereon.

[0010] Optionally, the material rod support platform includes a loading base plate slidably connected to the loading platform and a second linear drive unit for driving the loading base plate to move; The feeding base plate is provided with a plurality of first gripper cylinders arranged in a linear array. The output end of the first gripper cylinder is provided with a first clamping arm and a second clamping arm for overlapping and clamping the string rod. The feeding platform is provided with a positioning stop and a positioning cap along the moving direction of the feeding base plate. The positioning cap can be moved to engage with the end of the string rod overlapping the first clamping arm and the second clamping arm, and push the string rod.

[0011] Optionally, the transfer fixture includes a gantry frame, a transfer frame slidably connected to the gantry frame in the horizontal direction, and a plurality of clamping units evenly spaced along the moving direction of the transfer frame. The gantry frame is equipped with a third linear drive unit for driving the transfer frame to move horizontally. The clamping unit includes a fourth linear drive unit arranged vertically on the transfer frame. The output end of the fourth linear drive unit is equipped with a second gripper cylinder. The two output ends of the second gripper cylinder are respectively equipped with a third gripper arm and a fourth gripper arm for clamping the string rod. The fourth linear drive unit is used to drive the second gripper cylinder to move vertically up and down.

[0012] Optionally, it also includes a material-pulling plate that can move horizontally relative to the transfer fixture, the end of which is provided with a U-shaped groove that can slide and engage with the outer periphery of the stringing rod.

[0013] Optionally, the feeding plate is connected to the output end of the fifth linear drive unit, the fifth linear drive unit is connected to the output end of the sixth linear drive unit, and the output directions of the fifth linear drive unit and the sixth linear drive unit are perpendicular to each other.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The serial assembly and sorting device in this technical solution realizes the fully automated operation of the annular workpiece from orderly feeding and sorting to serial assembly through automated collaborative design. It not only replaces manual labor to greatly improve production efficiency and reduce labor intensity, but also ensures accurate and stable serial assembly through material cavity positioning and rod slot guidance, avoiding workpiece displacement and surface scratches, and can well meet the needs of large-scale production. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of the serially arranged device for heat treatment of annular workpieces in a preferred embodiment of this utility model; Figure 2 This is a preferred embodiment of the present invention. Figure 1 A magnified structural diagram at point B; Figure 3 This is a front view structural schematic diagram of the serially arranged device for heat treatment of annular workpieces in a preferred embodiment of this utility model; Figure 4 This is a preferred embodiment of the present invention. Figure 3 A magnified structural diagram at point C; Figure 5 This is a partial structural diagram of the material feeding channel in conjunction with the material carrier box in a preferred embodiment of this utility model. Figure 6 This is a cross-sectional view of the feeding channel in a preferred embodiment of the present invention; The components are as follows: 1. Material box; 101. Material cavity; 102. Rod slot; 2. Vibratory feeder; 3. Stringing rod; 4. Feeding pipe; 401. Sliding cavity; 4011. Distributing chamber; 5. Second stop; 6. Sensor; 7. Rotary platform; 8. First linear drive unit; 9. Feeding platform; 10. Feeding base plate; 11. Second linear drive unit; 12. First gripper cylinder; 13. First gripper arm; 14. Second gripper arm; 15. Positioning stop; 16. Positioning cap; 17. Gantry frame; 18. Transfer frame; 19. Third linear drive unit; 20. Fourth linear drive unit; 21. Second gripper cylinder; 22. Third gripper arm; 23. Fourth gripper arm; 24. Material feeding plate; 2401. U-shaped slot; 25. Fifth linear drive unit; 26. Sixth linear drive unit; 27. First stop. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] like Figures 1-6 As shown, a serial assembly device for heat treatment of annular workpieces includes a material rod support platform, a material box 1, a feeding channel connected to the feeding port of a vibratory feeder 2, and a transfer fixture capable of vertical lifting and horizontal movement. Specifically, the vibratory feeder 2 is a feeding device in the prior art, capable of orderly conveying randomly arranged annular workpieces into the feeding channel. The top of the material box 1 is provided with several material cavities 101 arranged in a linear array. The material box 1 can rotate to a position below the feeding channel and move along the array direction of the material cavities 101, and the feeding channel can convey annular workpieces one by one into the material cavities 101. The material box 1 is provided with a through-rod slot 102 that can pass through several material cavities 101. The material box 1 can be rotated so that the through-rod slot 102 on it corresponds to the horizontal movement path of the transfer fixture. Several transfer fixtures can transfer the string rod 3 placed on the material rod support platform to the through hole in the through-rod slot 102 and the middle of several annular workpieces, and transfer the string rod 3 and several annular workpieces to the material rod support platform.

[0020] Specifically, the feeding channel includes a feeding pipe 4 with a built-in sliding cavity 401, a first stop 27 movable to block the bottom opening of the feeding pipe 4, and a second stop 5 movable to insert into the sliding cavity 401 and support the material coming from above into the sliding cavity 401. The top opening of the feeding pipe 4 is connected to the feeding port of the vibrating plate 2. The vibrating plate 2 can transport the annular workpiece through the top opening of the feeding pipe 4 into the sliding cavity 401, and the annular workpiece can roll along the inner wall of the sliding cavity 401. (Details follow...) Figure 1 , Figure 5 , Figure 6 As shown, there is a height difference between the top and bottom of the sliding cavity 401. Therefore, the annular workpiece entering the cavity from the top of the sliding cavity 401 can slide down to the bottom of the sliding cavity 401. The first stop 27, which moves to the bottom opening of the feed tube 4, can prevent the annular workpiece from falling further, and subsequent incoming materials can be arranged in an orderly manner along the inner wall of the sliding cavity 401. A distribution chamber 4011 for accommodating an annular workpiece is left between the first stop 27 and the second stop 5. Therefore, when the second stop 5 moves to insert into the sliding cavity 401, the annular workpiece overlapping the first stop 27 can be separated from the subsequent annular workpiece. Then, when the first stop 27 is withdrawn from the bottom opening of the feed tube 4, the corresponding separated annular workpiece can fall into the material cavity 101 on the material box 1.

[0021] Furthermore, in this embodiment, the first stop 27 and the second stop 5 are driven by linear drive units such as cylinders, servo slides, and linear motors, and the linear drive unit for driving the first stop 27 and the linear drive unit for driving the second stop 5 can cooperate with each other. That is, when the separately separated annular workpiece falls from the bottom of the feed tube 4, the first stop 27 can be reset to the position blocking the bottom opening of the feed tube 4 under the drive of the corresponding linear drive unit, and then the second stop 5 can be withdrawn from the sliding cavity 401 under the drive of the corresponding linear drive unit, so that the annular workpieces arranged in the sliding cavity 401 can fall in sequence until the annular workpiece at the front of the arrangement falls and overlaps the first stop 27. Then the above action can be repeated; the second stop 5 moves to insert into the sliding cavity 401 to separate the subsequent material, the first stop 27 is withdrawn from the bottom opening of the feed tube 4, and the corresponding separated annular workpiece falls alone. By repeating this process, the operational requirements for conveying ring-shaped workpieces one by one can be met.

[0022] It should be noted that in this embodiment, to avoid the material chamber 101 in the material container 1 becoming empty, such as... Figure 5 , Figure 6As shown, in this technical solution, a sensor 6 is installed on the feeding pipe 4 at a position corresponding to the distribution chamber 4011. The sensor 6, the vibratory feeder 2, and the linear drive unit used to drive the first stop 27 and the second stop 5 are electrically connected. The sensor 6 is used to monitor whether there is an annular workpiece in the area of ​​the distribution chamber 4011 before the first stop 27 retracts from the bottom opening of the feeding pipe 4. If it exists, the first stop 27 can cooperate with the movement of the material box 1 to continuously transport the annular workpieces one by one. If it does not exist, the first stop 27 will not retract when the material box 1 moves to the next empty material cavity 101 below the bottom opening of the feeding pipe 4, and the material box 1 will also stop moving until the sensor 6 detects the presence of an annular workpiece in the distribution chamber 4011 and the second stop 5 is inserted into the sliding cavity 401. After this, the first stop 27 can cooperate with the movement of the material box 1 to continuously transport the annular workpieces one by one.

[0023] The above, such as Figure 1 , Figure 5 As shown, the serial assembly and sorting device also includes a rotating platform 7. Two first linear drive units 8 are symmetrically arranged on the top of the rotating platform 7 along its rotation axis. Each first linear drive unit 8 has a material box 1 at its output end. The rotating platform 7 is used to drive the two first linear drive units 8 and the material box 1 to rotate around a preset axis, which can realize the switching of the work positions of the two material boxes 1. The first linear drive unit 8 is used to drive the material box 1 to move along the array direction of the plurality of material cavities 101 arranged on it. Therefore, when the rotating platform 7 drives the empty material box 1 to move below the bottom opening of the feeding tube 4, the annular workpiece falling from the bottom opening of the feeding tube 4 can accurately fall into the material cavity 101 on the material box 1. The first drive unit can drive the material box 1 to move accordingly in coordination with the frequency of the annular workpiece falling from the bottom opening of the feeding tube 4, so that the plurality of material cavities 101 on the material box 1 can receive the falling annular workpiece in sequence. Once the material box 1 is fully loaded, the rotating platform 7 can drive the fully loaded material box 1 to rotate, so that the position of the through-rod slot 102 on the material box 1 corresponds to the position of the transfer fixture transfer rod 3, which facilitates the transfer fixture to perform the stringing operation. At this time, the other empty material box 1 can rotate to the bottom opening of the discharge pipe 4 to continue to receive the falling annular workpieces, thereby increasing the continuity of the stringing and sorting of annular workpieces and improving efficiency.

[0024] The aforementioned material rod support platform includes a loading base plate 10 slidably connected to the loading platform 9 and a second linear drive unit 11 for driving the loading base plate 10 to move; wherein, the loading base plate 10 is provided with a plurality of first gripper cylinders 12 arranged in a linear array, and the output end of the first gripper cylinders 12 is provided with a first gripper arm 13 and a second gripper arm 14 for overlapping and gripping the serially mounted rods 3, specifically as follows: Figure 2As shown, the first clamping arm 13 and the second clamping arm 14, driven by the first clamping cylinder 12, can open to a V-shaped jaw shape, thus facilitating the connection of the stringing rod 3. Simultaneously, the first clamping cylinder 12 can also drive the first clamping arm 13 and the second clamping arm 14 to move towards each other and fix them to the outer periphery of the stringing rod 3, thereby fixing the position of the stringing rod 3 on the loading base plate 10 and preventing jumping or slippage during the movement of the loading base plate 10 driven by the second linear drive unit 11. Furthermore, in this embodiment, the loading platform 9 is provided with a positioning stop 15 and a positioning cap 16 along the moving direction of the loading base plate 10. The positioning cap 16 can move to engage with the end of the stringing rod 3 connected to the first clamping arm 13 and the second clamping arm 14, and push the stringing rod 3. It should be noted that the positioning cap 16 is driven by linear drive units such as cylinders, servo slides, and linear motors, among others. The loading platform 9 and the loading base plate 10 are slidably connected by several sets of parallel linear guide rails to ensure the smoothness of the movement and the accuracy of linear motion of the loading base plate 10. The second linear drive unit 11 can drive the loading base plate 10 to reciprocate between the material rod placement position and the material rod loading position. The material rod placement position and the material rod loading position are two positions on the loading platform 9. The material rod placement position is far from the movement trajectory of other structures, making it convenient for operators to pick up and put down the string rods 3 and improving operational safety. The material rod loading position corresponds to the position where the transfer fixture picks up and puts down the string rods 3, facilitating the pick-up and put-down of the transfer fixture. The positioning baffle 15 corresponds to the material bar placement position. When the loading base plate 10 is moved to the material bar placement position and the first clamping arm 13 and the second clamping arm 14 are open, the operator can perform the loading operation of the empty stringing rod 3 and the unloading operation of the fully loaded stringing rod 3. That is, when the operator needs to place the empty stringing rod 3 between several sets of first clamping arms 13 and second clamping arms 14, one end of the stringing rod 3 can be operated to abut against one side of the positioning baffle 15. When the first clamping arm 13 and the second clamping arm 14 clamp and fix the stringing rod 3, the stringing rod 3 can be initially fixed relative to the loading base plate 10. The positioning cap 16 corresponds to the material loading position on the feed rod. When the second linear drive unit 11 drives the loading base plate 10 and the fixed string rod 3 on it to the material loading position, the first clamping arm 13 and the second clamping arm 14 can slightly release the string rod 3 under the drive of the first gripper cylinder 12, that is, release the position lock of the first clamping arm 13 and the second clamping arm 14 on the string rod 3, so that the string rod 3 can slide along a fixed trajectory relative to the first clamping arm 13 and the second clamping arm 14. At this time, the positioning cap 16 can move to engage with the end of the string rod 3 and push the string rod 3 a certain distance to accurately calibrate the position of the string rod 3 relative to the loading base plate 10. This ensures that when the first clamping arm 13 and the second clamping arm 14 are fully released, the position of the string rod 3 relative to the loading base plate 10 and the loading platform 9 will not shift significantly, thus facilitating the transfer fixture to accurately grasp the string rod 3.

[0025] The aforementioned transfer fixture includes a gantry frame 17, a transfer frame 18 slidably connected to the gantry frame 17 in the horizontal direction, and a plurality of clamping units evenly spaced along the moving direction of the transfer frame 18. The gantry frame 17 is equipped with a third linear drive unit 19 for driving the transfer frame 18 to move horizontally. The clamping units include a fourth linear drive unit 20 disposed vertically on the transfer frame 18. The output end of the fourth linear drive unit 20 is equipped with a second gripper cylinder 21. The two output ends of the second gripper cylinder 21 are respectively equipped with a third gripper arm 22 and a fourth gripper arm 23 for clamping the string rod 3. The fourth linear drive unit 20 is used to drive the second gripper cylinder 21 to move vertically up and down. In this embodiment, the third linear drive unit 19 can drive the plurality of clamping units to move along with the transfer frame 18 to above the material position on the material rod, while the fourth linear drive unit 20 can drive the clamping units to descend vertically. Specifically, several second gripper cylinders 21 can operate synchronously, enabling them to drive the corresponding third gripper arm 22 and fourth gripper arm 23 to securely clamp the string rod 3 that overlaps the first gripper arm 13 and the second gripper arm 14. After the positioning cap 16 is pulled out from the end of the string rod 3, the string rod 3 can move towards the fully loaded material box 1 in the cooperation of the third linear drive unit 19 and the fourth linear drive unit 20. It is important to note that during this process, the axial direction of the stringing rod 3, which is held and fixed by the third clamping arm 22 and the fourth clamping arm 23, is parallel to the direction of horizontal movement of the transfer frame 18. One or more second clamping cylinders 21 closest to the material box 1 can drive the corresponding third clamping arm 22 and the fourth clamping arm 23 to open significantly (the number of corresponding second clamping cylinders 21 is selected according to the distance between the rod slots 102 at both ends of the material box 1, but it must be ensured that the remaining second clamping cylinders 21 can firmly clamp the stringing rod 3), so that the stringing rod 3 can pass through the rod slots 102 on the material box 1 and the through holes in the middle of several annular workpieces without obstruction. After the stringing rod 3 has completely passed through the rod slots 102 on the material box 1, the second clamping cylinder 21 corresponding to the clamping position without an annular workpiece can re-drive the corresponding third clamping arm 22 and the fourth clamping arm 23 to clamp the outer wall of the stringing rod 3 again, so as to prevent the annular workpiece from detaching from the stringing rod 3. Then, under the coordinated action of the third linear drive unit 19, the fourth linear drive unit 20, and several second gripper cylinders 21, the stringing rod 3 with the annular workpieces is placed on several sets of first gripping arms 13 and second gripping arms 14. It should be noted that the positions of the several sets of first gripping arms 13 and second gripping arms 14 are staggered from the annular workpieces on the stringing rod 3. After the several first gripper cylinders 12 drive the corresponding first gripping arms 13 and second gripping arms 14 to firmly clamp the fully loaded stringing rod 3, the second linear drive unit 11 will drive the loading base plate 10 and the stringing rod 3 clamped and fixed on it to move to the material release position of the material rod, so that the operator can pick up the material.

[0026] In practical use, since some of the stringing rods 3 are relatively long and the load-bearing capacity of the material box 1 is limited, a single stringing action cannot fully load the stringing ring workpiece. Therefore, in this embodiment, a material-pulling plate 24 that can move horizontally relative to the transfer fixture can be added. The end of the material-pulling plate 24 is provided with a U-shaped groove 2401 that can slide and engage with the outer periphery of the stringing rod 3.

[0027] Specifically, such as Figure 1 , Figure 4 As shown, in this embodiment, the material feeding plate 24 is connected to the output end of the fifth linear drive unit 25, and the fifth linear drive unit 25 is connected to the output end of the sixth linear drive unit 26. The sixth linear drive unit 26 is used to drive the fifth linear drive unit 25 and the material feeding plate 24 to move along the moving direction of the transfer plate (i.e., parallel to the axial direction of the stringing rod 3 clamped and fixed by the third clamping arm 22 and the fourth clamping arm 23). The fifth linear drive unit 25 is used to drive the material feeding plate 24 to move toward the stringing rod 3 clamped and fixed by the third clamping arm 22 and the fourth clamping arm 23 until the U-shaped slot 2401 at the end of the material feeding plate 24 is movably engaged with the outer periphery of the stringing rod 3. With the cooperation of the sixth linear drive unit 26, the material feeding plate 24 can push the annular workpiece on the stringing rod 3 to move toward the direction away from the material box 1, so that more annular workpieces can be strung on the section of the stringing rod 3 near the material box 1. It should be noted that during this process, when the annular workpiece moves relative to the stringing rod 3, the third clamping arm 22 and the fourth clamping arm 23 on the stringing rod 3, located in the forward direction of the annular workpiece, can open under the drive of the corresponding second gripper cylinder 21 (the third clamping arm 22 and the fourth clamping arm 23 can be re-clamped on the outer periphery of the stringing rod 3 after the annular workpiece and the material guide plate 24 have passed), facilitating the passage of the annular workpiece and the material guide plate 24, until the annular workpiece can be orderly stringed on the stringing rod 3. This process is repeated, and the material guide plate 24 can reset after pushing the annular workpiece relative to the stringing rod 3. After the stringing rod 3, under the coordinated operation of the third linear drive unit 19 and the fourth linear drive unit 20, passes through another set of annular workpieces on the loading box 1, the material guide plate 24 can again push the annular workpiece on the stringing rod 3 under the renewed drive of the fifth linear drive unit 25 and the sixth linear drive unit 26, until the stringing rod 3 is fully loaded.

[0028] It should be noted that the first linear drive unit 8, the second linear drive unit 11, the third linear drive unit 19, the fourth linear drive unit 20, the fifth linear drive unit 25, and the sixth linear drive unit 26 involved in this technical solution all belong to mature existing linear drive technologies in the field of industrial automation.

[0029] Working principle: The vibratory feeder 2 orderly feeds the randomly stacked annular workpieces into the feeding channel. The material carrier 1 can rotate to the bottom of the feeding channel and move along the array direction of several material cavities 101 on it, so that the annular workpieces output one by one from the feeding channel can be placed upright in the material cavities 101 on the material carrier 1. Then the material carrier 1 rotates to align the through-rod slot 102 with the transfer fixture path. The transfer fixture first picks up the stringing rod 3 on the material rod support platform and drives the stringing rod 3 to pass through the through-rod slot 102 and the through holes of each workpiece, thereby completing the stringing. Finally, the stringing rod 3 and the annular workpiece are moved back to the material rod support platform together.

[0030] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A serially arranged device for heat treatment of annular workpieces, characterized in that: It includes a material support platform, a material box, a feeding channel connected to the feeding port of the vibratory feeder, and a transfer clamp that can be vertically lifted and horizontally moved; The top of the material carrier box is provided with several material cavities arranged in a linear array. The material carrier box can rotate to the bottom of the material unloading channel and move along the array direction of the several material cavities. The material unloading channel can transport annular workpieces one by one to be placed upright in the material cavities. The material carrier box is provided with a through-rod slot that can pass through several material cavities, and the through-rod slot on the material carrier box can be rotated to correspond to the horizontal movement path of the transfer fixture. Several transfer fixtures can transfer the string rod placed on the material rod support platform to the through hole provided in the through-rod slot and the middle of several annular workpieces, and transfer the string rod and several annular workpieces to the material rod support platform.

2. The serial assembly device for heat treatment of annular workpieces according to claim 1, characterized in that: The feeding channel includes a feeding pipe with a built-in material sliding cavity, a first stop block that can be moved to block the bottom opening of the feeding pipe, and a second stop block that can be moved to be inserted into the material sliding cavity and support the material coming from above into the material sliding cavity; The top opening of the feeding pipe is connected to the feeding port of the vibratory plate. The annular workpiece that enters the cavity from the top of the sliding cavity can slide down to the bottom of the sliding cavity. A material distribution chamber for accommodating an annular workpiece is left between the first stop and the second stop.

3. The serial assembly device for heat treatment of annular workpieces according to claim 2, characterized in that: The feed pipe is equipped with a sensor corresponding to the feed chamber.

4. The serial assembly device for heat treatment of annular workpieces according to claim 1, characterized in that: It also includes a rotating platform, on the top of which two first linear drive units are symmetrically arranged along its rotation axis. Each first linear drive unit has a material container at its output end. The first linear drive unit is used to drive the material container to move along the array direction of a plurality of material cavities arranged thereon.

5. The serially arranged device for heat treatment of annular workpieces according to claim 1, characterized in that: The material rod support platform includes a loading base plate slidably connected to the loading platform and a second linear drive unit for driving the loading base plate to move. The feeding base plate is provided with a plurality of first gripper cylinders arranged in a linear array. The output end of the first gripper cylinder is provided with a first clamping arm and a second clamping arm for overlapping and clamping the string rod. The feeding platform is provided with a positioning stop and a positioning cap along the moving direction of the feeding base plate. The positioning cap can be moved to engage with the end of the string rod overlapping the first clamping arm and the second clamping arm, and push the string rod.

6. The serial assembly device for heat treatment of annular workpieces according to claim 1, characterized in that: The transfer fixture includes a gantry frame, a transfer frame slidably connected to the gantry frame in the horizontal direction, and a plurality of clamping units evenly spaced along the moving direction of the transfer frame. The gantry frame is equipped with a third linear drive unit for driving the transfer frame to move horizontally. The clamping unit includes a fourth linear drive unit arranged vertically on the transfer frame. The output end of the fourth linear drive unit is equipped with a second gripper cylinder. The two output ends of the second gripper cylinder are respectively equipped with a third gripper arm and a fourth gripper arm for clamping the string rod. The fourth linear drive unit is used to drive the second gripper cylinder to move vertically up and down.

7. The serially arranged device for heat treatment of annular workpieces according to claim 1, characterized in that: It also includes a material-pulling plate that can move horizontally relative to the transfer fixture, and the end of the material-pulling plate is provided with a U-shaped groove that can slide and engage with the outer periphery of the stringing rod.

8. The serial assembly device for heat treatment of annular workpieces according to claim 7, characterized in that: The feeding plate is connected to the output end of the fifth linear drive unit, and the fifth linear drive unit is connected to the output end of the sixth linear drive unit. The output directions of the fifth linear drive unit and the sixth linear drive unit are perpendicular to each other.

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