A thin-walled plate welding deformation control tool

Abstract

The application discloses a thin-wall plate welding deformation control tool and relates to the technical field of machining. A cover is arranged at the upper end of a base shell, a sliding top block is arranged in the cover, the sliding top block is connected with a rotating cam shaft in linkage, and the automatic clamping and dismounting of a thin-wall part are realized through the driving of a rotating rod. The tool is provided with a force-sensitive resistance early warning system, the clamping force alarm threshold is adjusted through an adjustable potentiometer, and the deformation of the part due to excessive clamping is avoided. The tool is simple in structure, convenient to operate, suitable for the batch rapid clamping and dismounting of thin-wall parts of multiple sizes, significantly improves the machining production efficiency, and ensures the precision and shape tolerance of the part.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of quick positioning and clamping of batch thin-walled sleeve parts in mechanical manufacturing production, in particular to a thin-walled plate welding deformation control tool. BACKGROUND

[0002] To ensure the production and machining precision of thin-walled sleeve parts and the clamping operation efficiency, reduce the operation time of part clamping, reduce the deformation of thin-walled sleeve part clamping, ensure the dimensional stability of the part, improve the machining efficiency and reduce the total machining cost. Especially in the precision guarantee and clamping efficiency of the post-clamping machining of thin-walled sleeve parts, in the general clamping of thin-walled sleeve parts, the clamping efficiency is long and low, the clamping occupies a large amount of machining time, and the precision of the machined parts is difficult to guarantee, the dimensional precision and shape tolerance precision are difficult to meet the drawing requirements, and even quality problems often occur, leading to part scrap, thereby affecting the product quality and product delivery of the whole project, and bringing uncontrollable risks to the product part quality. SUMMARY

[0003] To overcome the defects of the prior art, the present application provides the following technical scheme: a thin-walled plate welding deformation control tool, comprising a base shell, a cover shell is fixed on the upper end of the base shell through a fastening screw, a sliding top block is arranged in the cover shell, a rotating cam shaft is arranged at the inner end of the sliding top block, a bearing, a locking nut and a bearing end cover are arranged at the middle part of the rotating cam shaft, a check seat is arranged on the limiting sliding guide block at the lower end of the sliding top block, the check seat is elastically connected with the bearing end cover through a contraction spring, a rotating rod is arranged at the lower end of the rotating cam shaft, a positioning pin, a pressure spring, a limiting sliding pipe and an end shaft cover are arranged on the rotating rod, an eccentric handle, a pin shaft and a clamping protrusion are arranged on the limiting sliding pipe, a limiting clamping opening and a bottom cover plate are arranged on the base shell, the eccentric handle and the limiting sliding pipe are movably connected through the pin shaft, and the contact position of the eccentric handle and the end shaft cover is provided with a cam.

[0004] Preferably, a check locking mechanism is formed between the clamping protrusion and the limiting clamping opening, the clamping protrusion is integrally formed with the limiting sliding pipe; and the rotating cam shaft and the rotating rod are synchronously rotated through the positioning pin.

[0005] Preferably, a rotating rod is arranged in the base shell, clockwise rotation of the rotating rod can drive the rotating cam shaft to rotate at the center of the base shell, and the sliding top block is driven to displace outward through friction, so as to realize the diameter expansion change of the sliding top block along the center, and reversely clamp and tighten the part.

[0006] Preferably, a pressure spring is arranged in the rotating rod, for driving the limiting sliding pipe and the clamping protrusion to move towards the rotating cam shaft, so as to realize the check locking cooperation of the clamping protrusion and the limiting clamping opening.

[0007] Preferably, rotating the eccentric handle drives the limiting sliding pipe to slide out reversely, so that the clamping protrusion is separated from the limiting clamping opening, and the rotating rod is counterclockwise rotated, and under the action of the contraction spring, the sliding top block is driven to contract, so that the disassembly of the part is realized.

[0008] Preferably, a force-sensitive resistor is arranged on the contact surface of the sliding top block and the held part, and the force-sensitive resistor, the adjustable potentiometer and the indicator lamp are connected in series in a direct current circuit, wherein the adjustable potentiometer is arranged in the positive direction of the direct current power supply, the indicator lamp is arranged in the negative direction of the direct current power supply, and the force-sensitive resistor is arranged between the adjustable potentiometer and the indicator lamp.

[0009] Preferably, a triode is arranged in parallel at both ends of the adjustable potentiometer, the base of the triode is connected with the high potential point of the adjustable potentiometer, and the emitter of the triode is connected with the low potential point of the adjustable potentiometer.

[0010] Preferably, the collector and the emitter of the triode are connected in series with the loudspeaker in a branch circuit, and when the pressure of the sliding top block on the part is too large, the loudspeaker can provide an alarm.

[0011] Compared with the prior art, the present application has the following advantages: (1) The present application drives the sliding top block to move out by rotating the camshaft, which can quickly realize the clamping and fixing of thin-walled sleeve parts. Compared with the traditional manual clamping method, the present application greatly improves the production efficiency and reduces the possibility of part deformation during clamping. Through the check locking structure of the limiting clamping opening and the clamping protrusion, the stability of the part during clamping is ensured, and the precision of the part shape and position tolerance is effectively guaranteed; (2) The present application integrates a force-sensitive resistor on the contact surface of the sliding top block and the clamped part, and forms a warning system with the adjustable potentiometer and the loudspeaker. When the clamping force is too large, the loudspeaker will alarm, effectively preventing the part from being deformed due to excessive clamping. The existence of this system not only improves the safety of clamping operation, but also allows the operator to adjust the clamping pressure according to the properties of different materials, improving the flexibility and accuracy of operation; (3) The cooperation of the rotating rod and the rotating camshaft in the tool of the present application, combined with the linkage of the pressure spring and the contraction spring, enables the sliding top block to automatically move out and retract, realizing the quick clamping and loosening of thin-walled parts. This automatic clamping and disassembly process greatly reduces the operation complexity, saves the time for manual operation, and is suitable for mass production environment; (4) The present application can flexibly adjust the alarm pressure according to different materials and processing requirements by adjusting the alarm threshold of the loudspeaker through the adjustable potentiometer. This flexibility effectively avoids the problem of part damage caused by improper clamping, especially the risk of deformation of thin-walled parts during processing, which effectively ensures the integrity and quality of the parts. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top structure of the cover of the present application.

[0013] Figure 2 Fig. 1 is a schematic view of the base shell bottom structure of the present application.

[0014] Figure 3 Fig. 2 is a schematic view of the limit stop opening structure of the present application.

[0015] Figure 4 Fig. 3 is a sectional view of the sliding top block of the present application.

[0016] Figure 5 Fig. 4 is a sectional view of the overall structure of the present application.

[0017] Figure 6 Fig. 5 is a schematic view of the sliding top block structure of the present application.

[0018] Figure 7 Fig. 6 is a pressure warning control chart of the present application.

[0019] Fig. 1 is a schematic view of the base shell bottom structure of the present application. Fig. 2 is a schematic view of the limit stop opening structure of the present application. Fig. 3 is a sectional view of the sliding top block of the present application. Fig. 4 is a sectional view of the overall structure of the present application. Fig. 5 is a schematic view of the sliding top block structure of the present application. Fig. 6 is a pressure warning control chart of the present application. DETAILED DESCRIPTION

[0020] The technical solutions of the present application are further illustrated below in conjunction with the accompanying drawings. Figures 1-7 The technical solutions of the present application are further illustrated below in conjunction with the accompanying drawings.

[0021] The present application provides a kind of thin-walled plate welding deformation control tool, including base shell 101, the upper end of the base shell 101 is fixed with cover 103 by fastening screw 105, cover 103 inside is equipped with sliding top block 102, the inner end of the sliding top block 102 is equipped with rotating camshaft 104, the middle part of the rotating camshaft 104 is equipped with bearing 106, locking nut 107, bearing end cover 108, the limiting sliding guide block of the lower end of the sliding top block 102 is equipped with check seat 109, the check seat 109 is elastically connected with bearing end cover 108 by contraction spring 110, the lower end of the rotating camshaft 104 is equipped with rotating rod 111, the rotating rod 111 is equipped with positioning pin 119, pressure spring 112, limiting sliding pipe 113, end shaft cover 114, the limiting sliding pipe 113 is equipped with eccentric handle 115, pin shaft 116, locking protrusion 117, the base shell 101 is equipped with limiting locking mouth 120 and bottom cover plate 118, wherein eccentric handle 115 and limiting sliding pipe 113 are movably connected by pin shaft 116, the contact position of eccentric handle 115 and end shaft cover 114 is equipped with cam. Locking protrusion 117 and limiting locking mouth 120 form check locking mechanism, wherein locking protrusion 117 is integrally formed with limiting sliding pipe 113;Rotating camshaft 104 and rotating rod 111 are synchronously rotated by positioning pin 119. Rotating rod 111 is arranged in the base shell 101, and clockwise rotating rotating rod 111 can drive rotating camshaft 104 to rotate in the center of base shell 101, and sliding top block 102 is driven to displace outward by friction, realize the diameter expansion change of sliding top block 102 along the center, and the part is reversely clamped and tensioned. Pressure spring 112 is arranged in rotating rod 111, for driving limiting sliding pipe 113 and locking protrusion 117 to move to the direction of rotating camshaft 104, realize the check locking cooperation of locking protrusion 117 and limiting locking mouth 120. Rotating eccentric handle 115 drives limiting sliding pipe 113 to slide reversely, so that locking protrusion 117 is separated from limiting locking mouth 120, and rotating rod 111 is counterclockwise rotated, and sliding top block 102 is driven to contract under the action of contraction spring 110, so as to realize the disassembly of part.

[0022] The force-sensitive resistor 201 is arranged on the contact surface of the sliding top block 102 and the held part, and is connected in series with the adjustable potentiometer 202 and the indicator lamp 203 in a direct current circuit, wherein the positive pole of the direct current power supply is arranged in the direction of the adjustable potentiometer 202, the negative pole of the direct current power supply is arranged in the direction of the indicator lamp 203, and the force-sensitive resistor 201 is arranged between the adjustable potentiometer 202 and the indicator lamp 203. The two ends of the adjustable potentiometer 202 are connected in parallel with a triode, the base of the triode is connected with the high potential point of the adjustable potentiometer 202, and the emitter of the triode is connected with the low potential point of the adjustable potentiometer 202. The collector and the emitter of the triode are connected in series with the loudspeaker 204 in a branch circuit, and the loudspeaker 204 can provide an alarm when the pressure of the sliding top block 102 on the part is too large.

[0023] When the rotating rod 111 is pushed clockwise, the rotating cam shaft 104 drives the sliding top block 102 to move outward (relative sliding occurs between the rotating cam shaft 104 and the sliding top block 102), and quickly reaches the position of supporting the thin-walled part, and then the limiting sliding pipe 113 is automatically slid into the double-row limiting clamping port 120 under the clamping force of the pressure spring 112 in the rotating rod 111, and is clamped and fixed, so that the thin-walled part is quickly clamped; the eccentric handle 115 drives the limiting sliding pipe 113 to slide out of the limiting of the double-row limiting clamping port 120 in the reverse direction, and the rotating rod 111 is pushed counterclockwise to drive the rotating cam shaft 104, the return seat 109 is pulled by the contraction spring 110 to drive the sliding top block 102 to automatically shrink to the center, so that the thin-walled sleeve part is automatically released, and then the disassembly operation of the part is realized. The thin-walled sleeve part quick clamping tool is convenient to use and simple to operate. The problems of quick clamping of thin-walled sleeve parts in mechanical processing production, and clamping and disassembly to prevent deformation of parts in batch high-efficiency production to ensure the accuracy of the shape and position tolerance of the parts are solved. The operation is convenient, and is suitable for batch quick clamping and disassembly operation process of multi-size thin-walled sleeve parts in mechanical processing production, improves the mechanical processing production efficiency, ensures the part accuracy, reduces the part quality risk and reduces the manufacturing and processing cost.

[0024] When the clamping force of the sliding top block 102 on the part is too large, the resistance of the force-sensitive resistor 201 will be the lowest at this time, which will cause the voltage across the adjustable potentiometer 202 to increase, at this time the voltage across the adjustable potentiometer 202 will rise to a voltage greater than 0.7V, at this time the positive potential difference between the base and the emitter of the NPN triode is also greater than 0.7V, so the collector and emitter of the triode are turned on, at this time the horn 204 emits an alarm sound, the operator. The user can also change the clamping pressure threshold at which the horn 204 emits an alarm according to the material properties of the held part, specifically, by changing the resistance of the adjustable potentiometer 202 (the adjustable potentiometer 202 comes with a knob), so that the voltage across the adjustable potentiometer 202 changes, while the voltage across the force-sensitive resistor 201 decreases, the voltage across the adjustable potentiometer 202 will rise, so only need to adjust the voltage difference of 0.7V between the two ends of the adjustable potentiometer 202, can change the pressure threshold at which the horn 204 emits an alarm sound.

Claims

1. A tooling for controlling welding deformation of thin-walled plates, characterized in that: The system includes a base housing (101), the upper end of which is fixed with a cover (103) by fastening screws (105). Inside the cover (103) is a sliding top block (102), the inner end of which is a rotating camshaft (104). The rotating camshaft (104) has a bearing (106), a locking nut (107), and a bearing end cap (108) in its middle section. A check seat (109) is provided on the limiting sliding guide block at the lower end of the sliding top block (102). The check seat (109) is elastically connected to the bearing end cap (108) via a compression spring (110). A rotating rod (111) is provided at the lower end of the rotating camshaft (104), and a positioning pin (119) and a pressure spring (110) are provided on the rotating rod (111). 2) Limiting slide tube (113) and end cap (114). The limiting slide tube (113) is provided with an eccentric handle (115), a pin (116), and a locking protrusion (117). The base housing (101) is provided with a limiting locking port (120) and a bottom cover plate (118). The eccentric handle (115) and the limiting slide tube (113) are movably connected by the pin (116). A cam is provided at the contact position between the eccentric handle (115) and the end cap (114). A check lock mechanism is formed between the locking protrusion (117) and the limiting locking port (120). The locking protrusion (117) and the limiting slide tube (113) are integrally formed. The rotating camshaft (104) and the rotating rod (111) are synchronously rotated by a positioning pin (119). A force-sensitive resistor (201) is provided on the contact surface between the sliding top block (102) and the part being held. The force-sensitive resistor (201) is connected in series with the adjustable potentiometer (202) and the indicator light (203) in a DC circuit. The adjustable potentiometer (202) is located at the positive terminal of the DC power supply, and the indicator light (203) is located at the negative terminal of the DC power supply. The force-sensitive resistor (201) is located between the adjustable potentiometer (202) and the indicator light (203). A transistor is connected in parallel across the two ends of the adjustable potentiometer (202). The base of the transistor is connected to the high potential point of the adjustable potentiometer (202), and the emitter of the transistor is connected to the low potential point of the adjustable potentiometer (202). The collector and emitter of the transistor are connected in series with the horn (204) in a branch circuit. When the pressure of the sliding top block (102) on the part is too high, the horn (204) can provide an alarm.

2. The welding deformation control fixture for thin-walled plates according to claim 1, characterized in that: The base housing (101) is provided with a rotating rod (111). Rotating the rotating rod (111) clockwise can drive the rotating camshaft (104) to rotate in the center of the base housing (101), and through friction, drive the sliding block (102) to move outward, so that the diameter of the sliding block (102) along the center can be expanded and changed, and the parts can be clamped and supported in the opposite direction.

3. The welding deformation control fixture for thin-walled plates according to claim 2, characterized in that: The rotating rod (111) is equipped with a pressure spring (112) to drive the limiting slide tube (113) and the locking protrusion (117) to move towards the rotating camshaft (104) to achieve the anti-return locking engagement between the locking protrusion (117) and the limiting locking port (120).

4. The welding deformation control fixture for thin-walled plates according to claim 3, characterized in that: Rotating the eccentric handle (115) causes the limiting slide tube (113) to slide out in the opposite direction, allowing the locking protrusion (117) to separate from the limiting locking port (120). The rotating rod (111) rotates counterclockwise, and under the pulling force of the contraction spring (110), it drives the sliding top block (102) to contract, thereby realizing the disassembly of the parts.

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