Turnover synchronizing device

Abstract

The utility model provides an overturning synchronizing device. Relates to the field of overturning tools, and aims to solve the problems that a sand core deviates from a correct position due to the fact that clamping pieces of an existing clamp do not move synchronously and the sand core is damaged due to the fact that the two sides are not synchronous when the sand core is clamped to rotate, a first synchronizing mechanism is arranged for a clamping block, and the clamping block can synchronously clamp the two sides of the sand core; the problem of deviation caused by disturbance of the sand core in the clamping process is reduced; and a second synchronizing mechanism is arranged for the rotary body in contact with the sand core, and the two sides of the sand core can be driven to synchronously rotate after the sand core is clamped, so that the problems of damage and destruction caused by dislocation and torsion of the two sides of the sand core are reduced, the clamping precision of the sand core is ensured, and the casting quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of turning tooling, in particular to a turning synchronization device. Background Art

[0002] In the manufacturing industry, the casting production line is a core link, and the quality of sand core assembly directly affects the final quality of the product. During the assembly process, aligning the sand core is a critical task. However, current technology uses robots to carry fixtures to clamp the sand core and adjust its position and direction, but this method has some problems.

[0003] When clamping the sand core, it is usually positioned based on the center position. This means that the clamps on both sides of the fixture need to move synchronously toward the center. However, the clamps on both sides of the fixture are often driven separately, which will cause the clamping action to be asynchronous. For example, when the clamp on one side has already contacted the sand core, the clamping surface on the other side has not yet contacted the sand core. If the clamping action continues, the clamp on one side will push the sand core to move, which may cause the sand core to deviate from the correct position, causing the clamping position to deviate, and may even damage the sand core. In addition, after clamping the sand core, it is usually necessary to rotate and adjust the sand core. If the rotation angles of the clamps on both sides of the sand core are not synchronized, the two sides of the sand core will be twisted and offset, and the sand core may even be deformed or the internal structure will be damaged. This will seriously affect the accuracy and quality of the sand core, and it is difficult to meet the high-precision requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a flipping synchronization device to address the defects of the prior art. By arranging a first synchronization mechanism for the clamping block, the clamping block can be clamped synchronously from both sides of the sand core, thereby reducing the problem of disturbance of the sand core causing deviation during the clamping process; a second synchronization mechanism is arranged for a rotating body contacting the sand core, which can drive the two sides of the sand core to rotate synchronously after clamping the sand core, thereby reducing the damage and destruction caused by the misalignment and twisting of the two sides of the sand core, ensuring the clamping accuracy of the sand core, and improving the casting quality.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A flip synchronization device, comprising:

[0007] The first synchronization mechanism includes two translation mechanisms, the translation mechanisms include a slide, a support plate connected to the slide, and a driving cylinder, the slide is slidably connected to the fixture body, the support plate is provided with synchronization racks distributed along the sliding direction of the support plate, and the synchronization racks of the two translation mechanisms mesh with the same synchronization gear;

[0008] The second synchronization mechanism includes a rotary drive member and two rotating bodies, each rotating body is rotatably connected to its corresponding clamping block, the clamping block is installed on the slide, the two rotating bodies are connected to the transmission shaft through a synchronous sprocket mechanism respectively, the synchronous sprocket mechanism is installed on the sprocket of the transmission shaft, and can rotate with the transmission shaft and slide axially along the rotating shaft; the rotary drive member is fixed to the clamp body, and the output end is connected to one end of the transmission shaft.

[0009] Furthermore, the slide and the fixture body are matched through a moving pair, the moving pair includes a linear guide connected to the fixture body and a linear bearing connected to the slide, the axis of the linear guide is arranged along the moving direction of the slide, and the linear bearing is slidably installed on the linear guide.

[0010] Furthermore, the two translation mechanisms cooperate with two linear guide rails, and each slide is installed on the linear guide rails through two pairs of linear bearings arranged at intervals.

[0011] Furthermore, the synchronous gear is installed on the fixture body through a gear shaft, and the synchronous racks of the two translation mechanisms are located on the opposite sides of the synchronous gear axis.

[0012] Furthermore, one end of the driving cylinder is fixed to the fixture body, and the other end is an output end connected to the slide, and the movement direction of the output end of the driving cylinder is the same as the movement direction of the slide.

[0013] Furthermore, the rotating body is provided with a rotating shaft connected to the clamping block, the first sprocket of the synchronous sprocket mechanism is installed on the rotating shaft, the sprocket installed on the transmission shaft is the second sprocket, and the second sprocket corresponding to the same clamping block cooperates with the first sprocket for chain transmission.

[0014] Furthermore, the transmission shaft is a triangular prism-shaped shaft, and the second sprocket is installed on the transmission shaft through a triangular linear bearing. The second sprocket can rotate along the circumferential direction following the transmission shaft, and can also move along the axial direction of the transmission shaft following the clamping block.

[0015] Furthermore, the transmission ratios of the synchronous chain mechanisms corresponding to the two rotating bodies are the same, so that the angular velocities output by the two rotating bodies are equal.

[0016] Furthermore, the rotary drive member is connected to a mounting plate, and the mounting plate can be fixed to the fixture body, and the output end of the rotary drive member is coaxially connected to the transmission shaft through a coupling.

[0017] Furthermore, the rotary drive component includes a servo motor and a reducer, the input end of the reducer is connected to the servo motor, and the output end of the reducer is connected to the transmission shaft.

[0018] Compared with the prior art, the utility model has the following advantages and positive effects:

[0019] (1) In order to solve the problem that the sand core deviates from the correct position due to the asynchronous movement of the clamping parts of the current clamp, a first synchronization mechanism is provided for the clamping block so that the clamping block can clamp the sand core synchronously from both sides, thereby reducing the problem of the sand core being disturbed and deviated during the clamping process, improving the accuracy of clamping, and reducing the collision damage to the sand core.

[0020] (2) A second synchronization mechanism is provided for the rotating body in contact with the sand core, which can drive both sides of the sand core to rotate synchronously after clamping the sand core, thereby reducing the damage and destruction caused by the misalignment and twisting of the two sides of the sand core, ensuring the clamping accuracy of the sand core and improving the casting quality.

[0021] (3) By setting the meshing of the synchronous rack and the synchronous gear, the cylinder action with relatively large precision deviation is synchronized, so that the driving cylinder drives the slides on both sides to move synchronously, thereby realizing the synchronous movement of the clamping block on one side and the clamping block on the other side along the axial direction of the linear guide rail, ensuring the repeatability and consistency of the positioning of the sand core on the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 It is a schematic diagram of the external structure of the sand core turning synchronization device in the embodiment of the utility model.

[0024] Figure 2 It is a schematic diagram of the internal structure of the sand core turning synchronization device in the embodiment of the utility model.

[0025] In the figure, 1. linear bearing, 2. driving cylinder, 3. slide table, 4. linear guide, 5. support plate, 6. synchronous rack, 7. synchronous gear, 8. mounting plate, 9. clamping block, 10. first sprocket, 11. rotating body, 12. second sprocket, 13. fixture body, 14. rotary driving member. DETAILED DESCRIPTION

[0026] In a typical implementation of the present invention, Figure 1-Figure 2 As shown, a flip synchronization device is proposed.

[0027] When the sand core is clamped and moved, the clamp involves two actions: clamping and flipping the sand core. During the clamping action, if the clamping blocks 9 on both sides do not contact the sand core synchronously, the clamp on one side will push the sand core away from the correct position, causing the clamping position to deviate, and may even damage the sand core; if the rotating bodies 11 on both sides do not drive the sand core to rotate synchronously, the two sides of the sand core will be twisted and offset, and the sand core may even be deformed or the internal structure may be damaged.

[0028] Based on this, this embodiment provides a flipping synchronization device, which can synchronize the clamping movement of the clamping block 9 on the sand core, so that the clamping blocks 9 on both sides of the sand core can move synchronously and contact the sand core at the same time, and can also synchronously drive the two sides of the clamped sand core to rotate, thereby achieving a stable flipping action, jointly ensuring the accuracy of the clamp when clamping and flipping the sand core, and improving the quality of the casting.

[0029] The flip synchronization device is described in detail below with reference to the accompanying drawings.

[0030] A flipping synchronization device includes a first synchronization mechanism and a second synchronization mechanism, wherein the first synchronization mechanism establishes a connection between a clamp body 13 and a clamping block 9 of the clamp, and can simultaneously drive the synchronous translation of two clamping blocks 9 installed on the clamping block 9 body; the second synchronization mechanism establishes a connection between a rotating body 11 of the clamp and the clamping block 9, and can simultaneously drive the synchronous rotation of two rotating bodies 11 installed on the two clamping blocks 9. In actual work, the first synchronization mechanism drives the synchronous translation of the clamping block 9 to meet the precision requirement when clamping the sand core, and the second synchronization mechanism drives the synchronous rotation of the rotating body 11 to meet the precision requirement when flipping the clamping sand core.

[0031] The first synchronization mechanism includes two translation mechanisms, such as Figure 1 As shown, two translation mechanisms are arranged at intervals on the bottom surface of the clamp body 13, and the translation mechanisms can drive the corresponding clamping blocks 9 to perform clamping actions.

[0032] The translation mechanism includes a slide 3 and a support plate 5 connected to the slide 3, and a driving cylinder 2. The slide 3 is slidably connected to the fixture body 13. The support plate 5 is provided with a synchronous rack 6 distributed along the sliding direction of the support plate 5. The synchronous racks 6 of the two translation mechanisms are meshed with the same synchronous gear 7. The clamp block 9 is installed on the slide 3. When the driving cylinder 2 drives the slide 3 to slide relative to the fixture body 13, the clamp block 9 follows the slide 3 to translate relative to the fixture body 13.

[0033] A sliding connection is formed between the slide 3 and the fixture body 13 through a moving pair. The moving pair in this embodiment is composed of a linear guide 4 and a linear bearing 1. The linear guide 4 is arranged along the moving direction of the slide 3 and fixed to the bottom surface of the fixture body 13. The linear bearing 1 is installed on the slide 3. At the same time, the linear bearing 1 is slidably installed on the linear guide 4 and can slide along the axial direction of the linear guide 4, so that the slide 3 moves in the desired direction.

[0034] In order to improve the stability of the slide 3 sliding on the fixture body 13, two spaced and parallel linear guide rails 4 are arranged on the bottom surface of the fixture body 13, and each translation mechanism cooperates with the two linear guide rails 4 respectively.

[0035] At the same time, two pairs of linear bearings 1 are arranged on the slide 3 of each translation mechanism, and each pair of linear bearings 1 cooperates with two linear guide rails 4. The two pairs of linear bearings 1 cooperate with different axial positions of the linear guide rails 4 to form a stable sliding connection.

[0036] The support plate 5 serves as a connecting piece between the slide 3 and the synchronous rack 6, which can stably support the synchronous rack 6 and transmit the interaction between the synchronous rack 6 and the slide 3. The synchronous gear 7 is installed on the fixture body 13 through the gear shaft, and the synchronous racks 6 of the two translation mechanisms are located on opposite sides of the axis of the synchronous gear 7.

[0037] One end of the driving cylinder 2 is fixed to the fixture body 13 , and the other end is an output end connected to the slide 3 . The movement direction of the output end of the driving cylinder 2 is the same as the movement direction of the slide 3 .

[0038] By setting the synchronous rack 6 and the synchronous gear 7 to mesh, the action of the driving cylinder 2 with a relatively large precision deviation is synchronized, so that the driving cylinder 2 drives the slides 3 on both sides to move synchronously, thereby realizing the synchronous movement of the clamping block 9 on one side and the clamping block 9 on the other side along the axial direction of the linear guide 4, ensuring the repeatability and consistency of the positioning of the sand core on the fixture.

[0039] like Figure 2 As shown, the second synchronization mechanism includes a rotary drive member 14 and two rotating bodies 11. Each rotating body 11 is rotatably connected to its corresponding clamping block 9. The rotating body 11 can contact the side of the sand core after the clamping block 9 completes the clamping action. The rotary drive member 14 can indirectly drive the two rotating bodies 11 to move synchronously, so that the two sides of the rotating body 11 can achieve synchronous movement, thereby achieving stable flipping.

[0040] The two rotating bodies 11 are connected to the transmission shaft through a synchronous sprocket mechanism respectively. The synchronous sprocket mechanism is installed on the sprocket of the transmission shaft, which can rotate with the transmission shaft and slide axially along the rotating shaft. When the clamping block 9 performs the clamping action, the sprocket installed on the transmission shaft by the synchronous sprocket mechanism can move with the clamping block 9, so that the rotating body 11 can maintain its connection with the transmission shaft before and after the clamping action.

[0041] The rotary drive member 14 is fixed to the clamp body 13, and the output end is connected to one end of the transmission shaft. The rotary drive member 14 serves as a power source to drive the rotary body 11 on the clamp block 9 to rotate synchronously to complete the flipping action.

[0042] Specifically, the rotating body 11 is provided with a rotating shaft connected to the clamping block 9, the rotating shaft is installed on the clamping block 9 through a bearing, the first sprocket 10 of the synchronous sprocket mechanism is installed on the rotating shaft, the sprocket installed on the transmission shaft is the second sprocket 12, and the second sprocket 12 corresponding to the same clamping block 9 cooperates with the first sprocket 10 for chain transmission.

[0043] A second synchronization mechanism is set for the rotating body 11 that contacts the sand core. Through the sprocket and chain of the synchronous sprocket mechanism, an action relationship is established between the two rotating bodies 11 and the same transmission shaft. After clamping the sand core, the two sides of the sand core can be driven to rotate synchronously, thereby reducing the damage and destruction caused by the misalignment and twisting of the two sides of the sand core, ensuring the clamping accuracy of the sand core and improving the casting quality.

[0044] In order to improve the transmission accuracy, the transmission shaft is a triangular prism-shaped shaft, and the second sprocket 12 is installed on the transmission shaft through a triangular linear bearing 1. The second sprocket 12 can rotate along the circumferential direction with the transmission shaft and can move along the axial direction of the transmission shaft with the clamping block 9.

[0045] The transmission ratios of the synchronous chain mechanisms corresponding to the two rotating bodies 11 are the same, so that the angular velocities output by the two rotating bodies 11 are equal, thereby ensuring transmission accuracy.

[0046] like Figure 1 As shown, the rotary drive member 14 is connected to the mounting plate 8, the mounting plate 8 can be fixed to the fixture body 13, and the output end of the rotary drive member 14 is coaxially connected to the transmission shaft through a coupling. The rotary drive member 14 includes a servo motor and a reducer, the reducer motor is installed at one end of the servo motor, the servo motor is fixed to the fixture body 13 through the mounting plate 8, the input end of the reducer is connected to the servo motor, and the output end of the reducer is connected to the transmission shaft.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flip synchronization device, characterized in that: include: The first synchronization mechanism includes two translation mechanisms, the translation mechanisms include a slide, a support plate connected to the slide, and a driving cylinder, the slide is slidably connected to the fixture body, the support plate is provided with synchronization racks distributed along the sliding direction of the support plate, and the synchronization racks of the two translation mechanisms mesh with the same synchronization gear; The second synchronization mechanism includes a rotary drive member and two rotating bodies, each rotating body is rotatably connected to its corresponding clamping block, the clamping block is installed on the slide, the two rotating bodies are connected to the transmission shaft through a synchronous sprocket mechanism respectively, the synchronous sprocket mechanism is installed on the sprocket of the transmission shaft, and can rotate with the transmission shaft and slide axially along the rotating shaft; the rotary drive member is fixed to the clamp body, and the output end is connected to one end of the transmission shaft.

2. The flip synchronization device according to claim 1, characterized in that: The slide table and the fixture body are matched through a moving pair, and the moving pair includes a linear guide rail connected to the fixture body and a linear bearing connected to the slide table. The axis of the linear guide rail is arranged along the moving direction of the slide table, and the linear bearing is slidably installed on the linear guide rail.

3. The flip synchronization device according to claim 2, characterized in that: The two translation mechanisms cooperate with two linear guide rails, and each slide is installed on the linear guide rails through two pairs of linear bearings arranged at intervals.

4. The flip synchronization device according to claim 1, characterized in that: The synchronous gear is installed on the fixture body through the gear shaft, and the synchronous racks of the two translation mechanisms are located on the opposite sides of the synchronous gear axis.

5. The flip synchronization device according to claim 4, characterized in that: One end of the driving cylinder is fixed to the fixture body, and the other end is an output end connected to the slide table. The movement direction of the output end of the driving cylinder is the same as the movement direction of the slide table.

6. The flip synchronization device according to claim 1, characterized in that: The rotating body is provided with a rotating shaft connected to the clamping block, the first sprocket of the synchronous sprocket mechanism is installed on the rotating shaft, the sprocket installed on the transmission shaft is the second sprocket, and the second sprocket corresponding to the same clamping block cooperates with the first sprocket for chain transmission.

7. The flip synchronization device according to claim 6, characterized in that: The transmission shaft is a triangular prism-shaped shaft, and the second sprocket is installed on the transmission shaft through a triangular linear bearing. The second sprocket can rotate along the circumferential direction following the transmission shaft, and can also move along the axial direction of the transmission shaft following the clamping block.

8. The flip synchronization device according to claim 7, characterized in that: The transmission ratios of the synchronous chain mechanisms corresponding to the two rotating bodies are the same, so that the angular velocities output by the two rotating bodies are equal.

9. The flip synchronization device according to claim 1, characterized in that: The rotary drive member is connected to a mounting plate, and the mounting plate can be fixed to the fixture body. The output end of the rotary drive member is coaxially connected to the transmission shaft through a coupling.

10. The flip synchronization device according to claim 9, characterized in that: The rotary drive component includes a servo motor and a reducer, the input end of the reducer is connected to the servo motor, and the output end of the reducer is connected to the transmission shaft.

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