Clamp synchronizing mechanism of stretcher

Abstract

The utility model discloses a clamp synchronizing mechanism of a stretcher, which belongs to the technical field of stretchers and comprises a machine body, a supporting guide wheel is mounted on one side of the machine body, a synchronizing cross beam is arranged on the supporting guide wheel, and the synchronizing cross beam is in limited sliding connection with the supporting guide wheel. Synchronous guide rods are slidably installed on the two sides of the interior of the synchronous cross beam in a limited mode, segmented clamps are installed at the front ends of the synchronous guide rods, compensation cylinders are installed at the rear ends of the synchronous guide rods and correspond to the segmented clamps, a main clamping cylinder is further installed on the synchronous cross beam, and the guide rods and the connecting rods jointly play a synchronous role, so that the synchronous precision is high, and the structure is reliable; the synchronous guide rod adjusting nut can reduce the influence caused by manufacturing tolerance, the compensation cylinder can eliminate the influence caused by the thickness of the plate, the clamping is more stable, the clamping force is uniform, and the material breaking probability is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stretching machines, and more specifically, to a clamping synchronization mechanism for a stretching machine. Background Art

[0002] Aircraft skin parts are indispensable components for manufacturing aircraft. The raw materials of skin parts are generally formed by an aluminum plate stretching machine, which has functions such as reducing the internal residual stress of aluminum-magnesium alloy sheets, straightening the sheets, and enhancing material properties.

[0003] However, when the aluminum plate stretching machine is loading the sheet material, if the clamping structure has unstable synchronization or loose local clamping during the stretching process, it is easy to cause the sheet material to deform, and in severe cases, the sheet material may break, affecting the production efficiency and increasing the production cost. How to invent a clamping synchronization mechanism for a stretching machine to improve these problems has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a clamping synchronization mechanism for a stretching machine, aiming to improve the problems of unstable synchronization and loose local clamping of the clamping structure during the stretching process.

[0005] The utility model is implemented as follows: A clamping synchronization mechanism for a stretching machine includes

[0006] A fuselage, on one side of which a support guide wheel is installed. A synchronization cross beam is arranged on the support guide wheel, and the synchronization cross beam is in limit sliding connection with the support guide wheel. On both sides inside the synchronization cross beam, synchronization guide rods are installed in limit sliding manner. At the front end of the synchronization guide rod, a segmented clamp is installed, and at the rear end of the synchronization guide rod, a compensation cylinder is installed. The compensation cylinder is arranged corresponding to the segmented clamp. A main clamping cylinder is also installed on the synchronization cross beam.

[0007] In a preferred technical solution of the utility model, a synchronization shaft is fixedly installed on the fuselage. At both ends of the synchronization shaft, bearing seats are rotatably sleeved, and the bearing seats are fixedly installed on the fuselage. Above the synchronization shaft, a connecting rod is connected, and the end of the connecting rod is connected to the synchronization cross beam.

[0008] In a preferred technical solution of the utility model, main pin shafts are installed in limit clamping manner at both ends of the connecting rod, and the main pin shafts cooperate with the connecting rod to be in limit connection with the synchronization shaft and the synchronization cross beam respectively.

[0009] In a preferred technical solution of the utility model, a main clamping cylinder connecting plate is provided on one side of the main clamping cylinder, and the main clamping cylinder is respectively installed on both sides of the middle part of the main clamping cylinder connecting plate, and a guide shaft is installed at the output end of the main clamping cylinder, and a guide shaft sleeve is connected to the external limiting sliding sleeve of the guide shaft, and the guide shaft is transmission-connected to the fuselage.

[0010] In a preferred technical solution of the present utility model, adjustment lock nuts are respectively provided at both ends of the synchronous guide rod, and the adjustment lock nuts are transmission-connected to the synchronous guide rod.

[0011] In a preferred technical solution of the utility model, a lubricating guide sleeve is sleeved on the end of the synchronous guide rod, and the synchronous guide rod is connected to the synchronous crossbeam through the lubricating guide sleeve.

[0012] In a preferred technical solution of the utility model, the ends of the synchronous guide rod are respectively connected to clamp push rods, and the other end of the clamp push rod is limitedly connected to the segmented clamp.

[0013] In a preferred technical solution of the utility model, a pin is provided between the synchronous guide rod and the clamp push rod, and the pin is limitedly engaged with the synchronous guide rod and the clamp push rod.

[0014] In a preferred technical solution of the utility model, a compensation cylinder is installed behind the synchronous guide rod, and the compensation cylinder is arranged corresponding to the clamp push rod.

[0015] The synchronous guide rod and connecting rod in the text play a synchronization role, with high synchronization accuracy and reliable structure. The synchronous guide rod and adjusting nut can reduce the influence of manufacturing tolerance. The compensation cylinder can eliminate the influence of sheet thickness, and the clamping is more stable, the clamping force is uniform, and the probability of material breakage is reduced.

[0016] The beneficial effects of the utility model are as follows: the utility model obtains a stretching machine clamp synchronization mechanism through the above design. When in use, the main clamping cylinder pushes the synchronization beam forward, and the guide shaft is inserted into the guide shaft sleeve of the machine body. Under the action of the guide shaft, the ejection direction of the main clamping cylinder is guaranteed to be consistent with the moving direction of the synchronization beam. In the process of the synchronization beam moving forward, the synchronization shaft is connected to the synchronization shaft through a connecting rod below the synchronization beam for mechanical synchronization, ensuring that the left and right sides of the synchronization beam move in unison and clamp at the same time to correct the deformation of the sheet itself. After the main clamping cylinder is pushed to the clamping position, the main clamping cylinder is locked and pressure is maintained. In view of the inconsistent thickness uniformity of the sheet itself, it is necessary to start the compensation cylinder. The compensation cylinder will push the segmented clamp to further clamp the thinner position of the sheet to ensure the uniformity of clamping. After all the compensation cylinders are in place, the stretching machine starts to perform the stretching action. By using the compensation cylinder, the different clamping forces at different locations caused by the thickness difference of the sheet are eliminated, so that the sheet is stretched evenly, the performance is improved, the breakage is reduced, and the yield rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic top view structure provided by an embodiment of the present utility model;

[0019] Figure 2 is a schematic front view structure provided by an embodiment of the present utility model;

[0020] Figure 3 is a partial structure schematic diagram provided by an embodiment of the present utility model.

[0021] In the figure: 1. Synchronous cross beam; 2. Synchronous guide rod; 3. Adjusting lock nut; 4. Compensation cylinder; 5. Main clamping cylinder connecting plate; 6. Main clamping cylinder; 7. Pin shaft; 8. Connecting rod; 9. Bearing seat; 10. Lubricating guide sleeve; 11. Clamp push rod; 12. Segmented clamp; 13. Support guide wheel; 14. Synchronous shaft; 15. Main pin shaft; 16. Guide shaft; 17. Guide shaft sleeve; 18. Machine body. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a clamping synchronization mechanism for a stretching machine, including

[0024] a machine body 18, a support guide wheel 13 is installed on one side of the machine body 18, a synchronous cross beam 1 is arranged on the support guide wheel 13, the synchronous cross beam 1 is in limit sliding connection with the support guide wheel 13, two inner sides of the synchronous cross beam 1 are installed with synchronous guide rods 2 in limit sliding manner, a segmented clamp 12 is installed at the front end of the synchronous guide rod 2, a compensation cylinder 4 is installed at the rear end of the synchronous guide rod 2, the compensation cylinder 4 is arranged corresponding to the segmented clamp 12, and a main clamping cylinder 6 is also installed on the synchronous cross beam 1.

[0025] A synchronous shaft 14 is fixedly installed on the fuselage 18, and bearing seats 9 are rotatably sleeved at both ends of the synchronous shaft 14. The bearing seats 9 are fixedly installed on the fuselage 18. A connecting rod 8 is connected to the top of the synchronous shaft 14, and the end of the connecting rod 8 is connected to the synchronous beam 1. Both ends of the connecting rod 8 are limitedly connected with a main pin shaft 15, and the main pin shaft 15 cooperates with the connecting rod 8 to limit the synchronous shaft 14 and the synchronous beam 1. A main clamping cylinder connecting plate 5 is provided on one side of the main clamping cylinder 6, and the main clamping cylinder 6 is respectively installed on both sides of the middle of the main clamping cylinder connecting plate 5. A guide shaft 16 is installed on the output end of the main clamping cylinder 6, and a guide shaft sleeve 17 is slidably sleeved on the outer limit of the guide shaft 16. The guide shaft 16 is connected to the fuselage 18 in transmission. Guide shafts 16 are arranged on both sides of the synchronous beam 1, and a synchronous connecting rod 8 and a supporting guide wheel 13 are provided below to jointly guide the synchronous beam 1 to synchronize, with higher precision and better reliability.

[0026] Adjustment lock nuts 3 are provided at both ends of the synchronous guide rod 2, and the adjustment lock nuts 3 are in transmission connection with the synchronous guide rod 2, and the adjustment lock nuts 3 are used to adjust the compensation amount. The end of the synchronous guide rod 2 is sleeved with a lubricating guide sleeve 10, and the synchronous guide rod 2 is connected to the synchronous crossbeam 1 through the lubricating guide sleeve 10. The ends of the synchronous guide rod 2 are respectively connected with clamp push rods 11, and the other end of the clamp push rod 11 is limitedly connected with the segmented clamp 12. A pin shaft 7 is provided between the synchronous guide rod 2 and the clamp push rod 11, and the pin shaft 7 is limitedly connected with the synchronous guide rod 2 and the clamp push rod 11. Compensation cylinders 4 are installed at the rear of the synchronous guide rods 2, and the compensation cylinders 4 are arranged corresponding to the clamp push rods 11. Each clamp push rod 11 is provided with an independent compensation cylinder 4, which can ensure stable clamping.

[0027] Working principle: During installation, loosen all the adjustment lock nuts 3 on the front and rear sides, use special tooling to adjust each clamp push rod 11 and the synchronous guide rod 2 to the required position, and then lock the front adjustment lock nut 3, which can eliminate the processing tolerance and assembly cumulative error between the parts. According to the set compensation amount, adjust the rear adjustment lock nut 3 to the corresponding position and then lock it. During operation, the main clamping cylinder 6 pushes the synchronous beam 1 forward, and the guide shaft 16 is inserted into the guide shaft sleeve 17 of the fuselage 18. Under the action of the guide shaft 16, ensure that the ejection direction of the main clamping cylinder 6 is consistent with the synchronous beam 1 The moving direction is consistent. During the forward movement of the synchronous beam 1, the synchronous beam 1 is connected to the synchronous shaft 14 through the connecting rod 8 at the bottom for mechanical synchronization to ensure that the left and right sides of the synchronous beam 1 move in unison and clamp at the same time to correct the deformation of the sheet material itself. After the main clamping cylinder 6 is pushed to the clamping position, the main clamping cylinder 6 is locked to maintain pressure. In view of the inconsistent thickness uniformity of the sheet material itself, it is necessary to start the compensation cylinder 4. The compensation cylinder 4 will push the segmented clamp 12 to further clamp the thinner position of the sheet material to ensure the uniformity of clamping. After all the compensation cylinders 4 are in place, the stretching machine starts the stretching action.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping synchronization mechanism for a stretching machine, characterized in that, Including a fuselage, a support guide wheel is installed on one side of the fuselage, a synchronous cross beam is arranged on the support guide wheel, the synchronous cross beam is in limit sliding connection with the support guide wheel, synchronous guide rods are installed in a limit sliding manner on both inner sides of the synchronous cross beam, a segmented clamp is installed at the front end of the synchronous guide rod, a compensation cylinder is installed at the rear end of the synchronous guide rod, the compensation cylinder is arranged corresponding to the segmented clamp, and a main clamping cylinder is also installed on the synchronous cross beam.

2. The clamping synchronization mechanism of the stretching machine according to claim 1, wherein: A synchronous shaft is fixedly installed on the fuselage, bearing seats are rotatably sleeved at both ends of the synchronous shaft, the bearing seats are fixedly installed on the fuselage, a connecting rod is connected above the synchronous shaft, and the end of the connecting rod is connected to the synchronous cross beam.

3. The stretching machine clamp synchronization mechanism according to claim 2, characterized in that: Main pin shafts are installed at both ends of the connecting rod in a limit clamping manner, and the main pin shafts cooperate with the connecting rod to be in limit connection with the synchronous shaft and the synchronous cross beam respectively.

4. The stretching machine clamp synchronization mechanism according to claim 1, wherein: A main clamping cylinder connecting plate is arranged on one side of the main clamping cylinder, the main clamping cylinders are respectively installed on both sides of the middle of the main clamping cylinder connecting plate, a guide shaft is installed at the output end of the main clamping cylinder, a guide shaft sleeve is installed in a limit sliding manner on the outside of the guide shaft, and the guide shaft is in transmission connection with the fuselage.

5. The stretching machine clamp synchronization mechanism according to claim 4, characterized in that: Adjusting lock nuts are respectively arranged at both ends of the synchronous guide rod, and the adjusting lock nuts are in transmission connection with the synchronous guide rod.

6. The clamping synchronizing mechanism of the stretcher according to claim 5, wherein: Lubricating guide sleeves are sleeved at the ends of the synchronous guide rods, and the synchronous guide rods are connected to the synchronous cross beam through the lubricating guide sleeves.

7. The stretching machine clamp synchronization mechanism according to claim 6, characterized in that: Clamp push rods are respectively connected to the ends of the synchronous guide rods, and the other ends of the clamp push rods are in limit connection with the segmented clamp.

8. The clamping synchronization mechanism of the stretching machine according to claim 7, characterized in that: A pin shaft is arranged between the synchronous guide rod and the clamp push rod, and the pin shaft is in limit clamping connection with the synchronous guide rod and the clamp push rod.

9. The clamping synchronization mechanism of the stretching machine according to claim 8, characterized in that: Compensation cylinders are installed behind the synchronous guide rods, and the compensation cylinders are arranged corresponding to the clamp push rods.

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