Clamping jaw for collecting double conduction bands of projectile body and band collecting method

Abstract

The invention provides a clamping jaw for collecting double conduction bands of a projectile body and a band collecting method, the clamping jaw comprises two sets of clamping jaws including a pre-collecting double conduction band clamping jaw and a tightening double conduction band clamping jaw, each set of pre-collecting double conduction band clamping jaw and tightening double conduction band clamping jaw comprises a plurality of sub-clamping jaws, and the inner surface of each sub-clamping jaw is provided with a protruding working surface; two trapezoidal grooves used for clamping an upper guide belt and a lower guide belt respectively are machined in the working surface of the pre-collecting double-guide-belt clamping jaw, and the clamping jaw is fixedly connected with the clamping jaw seat. By designing and using the two belt collecting clamping jaws, an original single belt collecting guide clamping jaw is replaced, four-time belt collecting is simplified into two-time belt collecting, the belt collecting frequency and bullet body collision can be reduced, the labor intensity of workers and the operation difficulty can be reduced, and the production efficiency and the belt collecting quality can be improved. The design structure of the clamping jaw is suitable for elastic body take-up machining of T2 or T3 material conduction bands, can be applied and popularized in the field of machining, and has large economic benefits and wide social benefits.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical cold processing, and in particular relates to a clamping claw for collecting double guide belts of an elastic body and a belt collecting method. Background Art

[0002] For a projectile with a double guide belt structure, the guide belt width is narrow and the distance between the two guide belts is small. In the original belt-winding process, two radial vertical belt-winding machines are used. Six hydraulic cylinders act on six single-belt clamps to wind up the upper guide belt and the lower guide belt respectively. After pre-winding and tightening, the upper and lower guide belts are respectively embedded in the upper and lower guide belt grooves of the projectile. The process flow is: pre-winding the upper guide belt → tightening the upper guide belt → pre-winding the lower guide belt → tightening the lower guide belt, and a total of four belt-winding times are required. Since the guide belt is narrow and the number of belt-winding times is high, it is easy to cause the guide belt to twist and deform and the projectile to bump, which has a certain impact on the product quality. In addition, the position of the projectile and the guide belt needs to be adjusted many times during belt-winding. The labor intensity and operation difficulty of the workers are high, and the production efficiency is low. In order to solve the above problems, it is necessary to design a clamp for winding double guide belts of projectiles. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention provides a clamp for collecting double guide belts of an elastic body and a belt collecting method, so as to solve the technical problems of high labor intensity and operation difficulty of workers when collecting double guide belts, low production efficiency and belt collecting quality, etc.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes a jaw for elastic body to retract double guide belts, the jaw for elastic body to retract double guide belts includes two sets of jaws, namely pre-retract double guide belt jaws and tightening double guide belt jaws, each set of pre-retract double guide belt jaws and tightening double guide belt jaws include multiple sub-jaws, and the multiple sub-jaws are symmetrically distributed in a circle; the inner surface of the sub-jaws is provided with a protruding working surface; the upper end edge of each set of jaws is provided with a boss, and the boss is axially provided with a mounting through hole, and the mounting through hole cooperates with the cylindrical pin on the jaw seat of the equipment to fix the jaw and the jaw seat; the working surface of the pre-retract double guide belt jaw is processed with two trapezoidal grooves for respectively clamping the upper guide belt and the lower guide belt.

[0007] Furthermore, when manufacturing the clamp, an integral processing mode is adopted, firstly processing it into a circular sleeve shape, and then evenly cutting it into multiple sub-clamps.

[0008] Furthermore, each set of clamping jaws includes six sub-jaws.

[0009] Furthermore, the distance between adjacent sub-jaws is 4 mm.

[0010] Furthermore, the clamping jaws are made of 45# high quality carbon structural steel.

[0011] Furthermore, the hardness of the clamping jaw after heat treatment is HRC38-42.

[0012] Furthermore, two mounting through holes are axially arranged on the boss, and the mounting through holes cooperate with two cylindrical pins on the device clamping claw seat.

[0013] Furthermore, the mounting through hole is clearance-matched with the cylindrical pin on the equipment clamping jaw seat.

[0014] In addition, the present invention also provides a method for collecting a double-guided tape by an elastic body, the method adopts the clamp for collecting a double-guided tape by an elastic body, and the method comprises the following steps:

[0015] S1 installs the pre-collecting double-guide belt clamp and the tightening double-guide belt clamp on the clamp seats of the first device and the second device respectively, and fixes them by the mounting through holes on the clamp and the cylindrical pins on the clamp seat; the clamp seat is fixedly connected to the cylinder piston by screws;

[0016] S2. The projectile is placed on the tray of the first device, and the upper and lower positions of the tray are adjusted so that the positions of the two tape guide grooves on the projectile correspond to the two trapezoidal grooves on the pre-collected tape guide clamp;

[0017] S3. Put the lower guide belt and the upper guide belt on the projectile body one after another, and make them level with the upper and lower guide belt grooves on the projectile body respectively, and then push the upper and lower guide belts into the guide belt grooves;

[0018] S4. The radial pressure generated by the cylinder piston on the first device pushes the pre-collection guide belt clamp to allow the upper and lower guide belts to enter the guide belt grooves to complete the pre-collection of the double guide belts;

[0019] S5. Remove the projectile, place the projectile on the tray of the second device, adjust the upper and lower positions of the tray so that the position of the two guide grooves on the projectile corresponds to the protruding working surface of the tightening guide jaws;

[0020] S6. The radial pressure generated by the cylinder piston on the second device pushes the clamping jaw fixed on the cylinder piston, and at the same time pushes the tightening guide belt clamping jaw, so that the upper and lower guide belts are fastened to the guide belt groove of the elastic body, and the outer diameter size requirements of the guide belt after the belt is collected are met, and the tightening of the double guide belt is completed;

[0021] S7. Remove the projectile body and the belt is wound up.

[0022] Further, the width of the upper conductive band is greater than that of the lower conductive band.

[0023] (III) Beneficial effects

[0024] The present invention proposes a clamping jaw and a belt-winding method for a projectile to wind up a double-guide belt. The clamping jaws include two sets of clamping jaws, namely, a pre-winding double-guide belt clamping jaw and a tightening double-guide belt clamping jaw. Each set of pre-winding double-guide belt clamping jaws and tightening double-guide belt clamping jaws include multiple sub-clamps. The inner surface of the sub-clamps is provided with a protruding working surface. The working surface of the pre-winding double-guide belt clamping jaw is processed with two trapezoidal grooves for clamping the upper guide belt and the lower guide belt respectively. The clamping jaw is fixedly connected to the clamping jaw seat. The present invention replaces the original single-guide belt clamping jaw by designing and using a double-winding belt clamping jaw, and simplifies the four-time belt-winding to two-time belt-winding. It can reduce the number of belt-winding times and collisions with projectiles, reduce the labor intensity and operation difficulty of workers, and improve production efficiency and belt-winding quality. The design structure of the clamping jaw is suitable for the processing of projectile belt-winding of T2 or T3 material guide belts, and can be applied and promoted in the field of mechanical processing, with great economic benefits and extensive social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1a This is a partial schematic diagram of the pre-collected double-conductor belt clamp of the present invention. Figure 1b is a side view;

[0026] Figure 2a It is a partial schematic diagram of tightening the double-guide belt clamp of the present invention. Figure 2b is a side view;

[0027] Figure 3 This is a schematic diagram of the working state of the pre-collecting double-conducting belt clamp of the present invention;

[0028] Figure 4 It is a schematic diagram of the tightening double-guide belt clamping jaws of the present invention. DETAILED DESCRIPTION

[0029] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0030] This embodiment proposes a clamping jaw for retracting a double guide belt of an elastic body. The clamping jaw is made of No. 45 high-quality carbon structural steel, and the hardness requirement after heat treatment is HRC38-42. There are two sets of clamping jaws for retracting a double guide belt of an elastic body, which are divided into pre-retracting double guide belt clamping jaws and tightening double guide belt clamping jaws. Each set includes six sub-jaws, which are symmetrically distributed on the circumference, and their working size is the outer diameter size of the guide belt after the elastic body is retracted. When manufacturing the clamping jaw, an overall processing mode is adopted, which is first processed into a circular sleeve shape, and then evenly cut into six sub-jaws. The distance between adjacent sub-jaws is 4mm. Figure 1a , 1bAs shown in 2a and 2b, the inner surface of the sub-claw is provided with a protruding working surface. A boss is provided on the upper edge of the clamping jaw, and two mounting through holes are axially provided on the boss. The mounting through holes are clearance-matched with two cylindrical pins on the clamping jaw seat of the equipment to fix the clamping jaw to the clamping jaw seat. The difference between the structure of the pre-collecting double-guide belt clamping jaw and the tightening double-guide belt clamping jaw is that the working surface of the pre-collecting double-guide belt clamping jaw is processed with two trapezoidal grooves for clamping the upper guide belt and the lower guide belt respectively, so as to prevent the narrow guide belt from being twisted and deformed during the belt collection, thereby affecting the belt collection quality.

[0031] like Figure 3 and 4 As shown, the steps for using the above-mentioned elastic body to collect the double guide belt clamp are as follows:

[0032] 1) The pre-collecting double-guide belt clamping jaw 1 and the tightening double-guide belt clamping jaw 2 are respectively installed on the clamping jaw seat 4 of the first device and the second device, and are fixed by two mounting through holes on the clamping jaw and two cylindrical pins 3 on the clamping jaw seat 4. There is a clearance fit between the mounting through holes and the cylindrical pins 3, which is convenient for loading and unloading; the clamping jaw seat 4 is fixedly connected to the cylinder piston 6 by screws 5;

[0033] 2) placing the elastic body 7 on the tray 8 of the first device, and adjusting the upper and lower positions of the tray 8 so that the positions of the two tape guide grooves on the elastic body 7 correspond to the two trapezoidal grooves on the pre-collecting tape guide clamping claw 1;

[0034] 3) The narrower lower guide belt 9 and the wider upper guide belt 10 are successively put on the elastic body 7, and are respectively flush with the upper and lower guide belt grooves on the elastic body 7, and then the upper guide belt 10 and the lower guide belt 9 are pushed into the guide belt grooves;

[0035] 4) The radial pressure generated by the cylinder piston 6 on the first device pushes the pre-collecting guide belt clamp 1, so that the upper guide belt 10 and the lower guide belt 9 enter the guide belt groove, completing the pre-collection of the double guide belts;

[0036] 5) Remove the elastic body 7, place the elastic body 7 on the tray 8 of the second device, and adjust the upper and lower positions of the tray 8 so that the positions of the two tape guide grooves on the elastic body 7 correspond to the protruding working surface of the tightening tape guide clamp 2;

[0037] 6) The radial pressure generated by the cylinder piston 6 on the second device pushes the clamping jaw 4 fixed on the cylinder piston 6 by the screw top 5, and at the same time pushes the tightening guide belt clamping jaw 2, so that the upper guide belt 10 and the lower guide belt 9 are fastened to the guide belt groove of the elastic body 7, and the outer diameter size requirements of the guide belt after the belt is tightened are met, and the tightening of the double guide belt is completed;

[0038] 7) Remove the elastic body 7 and the belt collection is completed.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A clamping claw for collecting double guide belts of an elastic body, characterized in that: The elastic body double guide belt retracting jaws include two sets of jaws, namely pre-retracting double guide belt jaws and tightening double guide belt jaws. Each set of pre-retracting double guide belt jaws and tightening double guide belt jaws include multiple sub-jaws, and the multiple sub-jaws are symmetrically distributed in a circle; the inner surface of the sub-jaws is provided with a protruding working surface; the upper end edge of each set of jaws is provided with a boss, and the boss is axially provided with a mounting through hole, which cooperates with the cylindrical pin on the equipment jaw seat to fix the jaw and the jaw seat; the working surface of the pre-retracting double guide belt jaw is processed with two trapezoidal grooves for respectively clamping the upper guide belt and the lower guide belt.

2. The double-guide belt clamp for elastic body as claimed in claim 1, characterized in that: When manufacturing the clamping jaw, an integral processing mode is adopted, where the clamping jaw is first processed into a circular sleeve shape and then evenly cut into a plurality of sub-clamping jaws.

3. The double-guide belt clamp for elastic body as claimed in claim 1, characterized in that: Each set of grippers includes six sub-jaws.

4. The double-guide belt clamp for elastic body as claimed in claim 1, characterized in that: The distance between adjacent sub-jaws is 4 mm.

5. The clamping claw for collecting double guide belts of an elastic body as claimed in claim 1, characterized in that: The clamping jaws are made of 45# high quality carbon structural steel.

6. The clamping claw for collecting double guide belts of an elastic body as claimed in claim 1, characterized in that: The hardness of the clamping jaws after heat treatment is HRC38~42.

7. The clamping claw for collecting double guide belts of an elastic body as claimed in claim 1, characterized in that: Two mounting through holes are axially arranged on the boss, and the mounting through holes cooperate with two cylindrical pins on the equipment clamping claw seat.

8. The clamping claw for collecting double guide belts of an elastic body as claimed in claim 1, characterized in that: The mounting through hole is clearance-matched with the cylindrical pin on the equipment clamping jaw seat.

9. A method for collecting a projectile with double guide belts, characterized in that: The tape collection method adopts the clamping claw for collecting double guide tapes of any one of claims 1 to 8, and the tape collection method comprises the following steps: S1 installs the pre-collecting double-guide belt clamp and the tightening double-guide belt clamp on the clamp seats of the first device and the second device respectively, and fixes them by the mounting through holes on the clamp and the cylindrical pins on the clamp seat; the clamp seat is fixedly connected to the cylinder piston by screws; S2. The projectile is placed on the tray of the first device, and the upper and lower positions of the tray are adjusted so that the positions of the two tape guide grooves on the projectile correspond to the two trapezoidal grooves on the pre-collected tape guide clamps; S3. Put the lower guide belt and the upper guide belt on the projectile body one after another, and make them level with the upper and lower guide belt grooves on the projectile body respectively, and then push the upper and lower guide belts into the guide belt grooves; S4. The radial pressure generated by the cylinder piston on the first device pushes the pre-collection guide belt clamp to allow the upper and lower guide belts to enter the guide belt grooves to complete the pre-collection of the double guide belts; S5. Remove the projectile, place the projectile on the tray of the second device, adjust the upper and lower positions of the tray so that the position of the two guide grooves on the projectile corresponds to the protruding working surface of the tightening guide jaws; S6. The radial pressure generated by the cylinder piston on the second device pushes the clamping jaw fixed on the cylinder piston, and at the same time pushes the tightening guide belt clamping jaw, so that the upper and lower guide belts are fastened to the guide belt groove of the elastic body, and the outer diameter size requirements of the guide belt after the belt is collected are met, and the tightening of the double guide belt is completed; S7. Remove the projectile body and the belt is wound up.

10. The method for collecting a projectile with double guide belts as claimed in claim 9, characterized in that: The width of the upper conduction band is greater than that of the lower conduction band.

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