Thin-wall plate welding deformation control tool

Abstract

The invention discloses a thin-wall plate welding deformation control tool, and relates to the technical field of machining. The cover shell is arranged at the upper end of the base shell, the sliding ejector block is arranged in the cover shell, the sliding ejector block is in linkage with the rotating cam shaft, and the thin-wall part is automatically clamped and disassembled through driving of the rotating rod. The tool is provided with a force sensitive resistor early warning system, the clamping force alarm threshold value is adjusted through an adjustable potentiometer, and deformation of the part due to excessive clamping is avoided. The tool is simple in structure, convenient to operate and suitable for batch rapid clamping and disassembling of multi-size thin-wall parts, the machining production efficiency is remarkably improved, and the precision and form and location tolerance of the parts are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing for rapid positioning and clamping of batch thin-wall sleeve parts in mechanical manufacturing production, in particular to a thin-wall plate welding deformation control tool. Background Art

[0002] In order to ensure the production and processing accuracy of thin-walled sleeve parts and the efficiency of clamping, reduce the working time of parts clamping, reduce the deformation of thin-walled sleeve parts clamping, ensure the dimensional stability of parts, improve processing efficiency and reduce the total processing cost. Especially in the precision guarantee and clamping efficiency of thin-walled sleeve parts after clamping, in the general clamping of thin-walled sleeve parts, the clamping efficiency is long and the efficiency is low, the clamping takes a lot of processing time, and the accuracy of the processed parts is difficult to guarantee, the dimensional accuracy and geometric tolerance accuracy are difficult to meet the requirements of the drawings, and even quality problems often occur, resulting in the scrapping of parts, which affects the product quality and product delivery of the entire project, and brings uncontrollable risks to the quality of product parts. Summary of the invention

[0003] The camshaft is an axially-coupled unit and actuated by a spring, and a locking nut is provided on the inner side of the camshaft to lock the camshaft. The locking nut and the bearing cap are provided on the camshaft to lock the camshaft. The locking nut and the bearing cap are provided on the camshaft to lock the camshaft. The locking nut and the bearing cap are provided on the camshaft to lock the camshaft.

[0004] Preferably, a non-return locking mechanism is formed between the locking protrusion and the limiting locking opening, wherein the locking protrusion and the limiting sliding tube are integrally formed; and the rotating camshaft and the rotating rod are synchronously rotated by a positioning pin.

[0005] Preferably, a rotating rod is provided in the base shell, and clockwise rotation of the rotating rod can drive the rotating camshaft to rotate in the center of the base shell, and drive the sliding top block to move outward through friction, so as to achieve the expansion change of the diameter of the sliding top block along the center, and reversely clamp and tighten the parts.

[0006] Preferably, a pressure spring is provided in the rotating rod for driving the limiting slide tube and the locking protrusion to move in the direction of the rotating camshaft to achieve a non-return locking cooperation between the locking protrusion and the limiting locking opening.

[0007] Preferably, the eccentric handle is rotated to drive the limit slide tube to slide out in the opposite direction, so that the locking protrusion is separated from the limit locking mouth, and the rotating rod is rotated clockwise to drive the sliding top block to shrink under the tension of the shrinkage spring, thereby realizing the disassembly of the parts.

[0008] Preferably, a force-sensitive resistor is arranged on the contact surface between the sliding top block and the clamped part, and the force-sensitive resistor is connected in series with an adjustable potentiometer and an indicator light in a DC circuit, wherein the adjustable potentiometer is arranged in the positive direction of the DC power supply, the indicator light is arranged in the negative direction of the DC power supply, and the force-sensitive resistor is arranged between the adjustable potentiometer and the indicator light.

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

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

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can quickly achieve the tightening and fixing of thin-walled sleeve parts by driving the sliding top block to move outwards by rotating the camshaft. Compared with the traditional manual clamping method, this design greatly improves production efficiency and reduces the possibility of deformation of parts during clamping. The non-return locking structure of the limit stop mouth and the stop convex block ensures the stability of the parts during clamping and effectively guarantees the accuracy of the shape and position tolerance of the parts; (2) The present invention integrates a force-sensitive resistor on the contact surface between the sliding top block and the clamped part, and forms an early warning system through an adjustable potentiometer and a speaker. When the clamping force is too large, the speaker sounds an alarm to effectively prevent the parts from being deformed due to excessive clamping. The existence of this system not only improves the safety of the clamping operation, but also allows the operator to adjust the clamping pressure according to the properties of different materials, thereby improving the flexibility and accuracy of the operation; (3) The cooperation between the rotating rod and the rotating camshaft in the tooling of the present invention, combined with the linkage of the pressure spring and the contraction spring, enables the sliding top block to automatically move outwards and retract, thereby achieving rapid clamping and loosening of thin-walled parts. The automated clamping and disassembly process greatly reduces the complexity of the operation, saves manpower operation time, and is suitable for mass production environments; (4) The present invention controls the alarm threshold of the speaker through an adjustable potentiometer, and can flexibly adjust the alarm pressure according to different materials and processing requirements. This flexibility effectively avoids the problem of part damage caused by improper clamping force, especially the risk of deformation of thin-walled parts during processing is effectively controlled, ensuring the integrity and quality of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is a schematic diagram of the bottom structure of the base shell of the present invention.

[0014] Figure 3 It is a schematic diagram of the limit stop structure of the present invention.

[0015] Figure 4 It is a cross-sectional view of the sliding top block of the integral structure of the present invention.

[0016] Figure 5 It is a cross-sectional view of the overall structure of the present invention.

[0017] Figure 6 It is a schematic diagram of the structure of the sliding top block of the present invention.

[0018] Figure 7 This is the pressure early warning control diagram of the present invention.

[0019] In the figure: 101-base shell; 102-sliding top block; 103-cover; 104-rotating camshaft; 105-fastening screw; 106-bearing; 107-locking nut; 108-bearing end cover; 109-check seat; 110-contraction spring; 111-rotating rod; 112-pressure spring; 113-limiting slide tube; 114-end shaft cover; 115-eccentric handle; 116-pin shaft; 117-stopping protrusion; 118-bottom cover plate; 119-locating pin; 120-limiting stop mouth; 201-force sensitive resistor; 202-adjustable potentiometer; 203-indicator light; 204-speaker. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-Figure 7 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0021] The present invention provides a thin-walled plate welding deformation control tool, comprising a base shell 101, a cover shell 103 is fixedly arranged on the upper end of the base shell 101 by means of a fastening screw 105, a sliding top block 102 is arranged inside the cover shell 103, a rotating cam shaft 104 is arranged at the inner end of the sliding top block 102, a bearing 106, a locking nut 107, and a bearing end cover 108 are arranged in the middle of the rotating cam shaft 104, a stop seat 109 is arranged on the limit sliding guide block at the lower end of the sliding top block 102, and the stop seat 109 is connected to the bearing end cover 108 by means of a contraction spring 110. 8 elastic connection, the lower end of the rotating cam shaft 104 is provided with a rotating rod 111, the rotating rod 111 is provided with a positioning pin 119, a pressure spring 112, a limiting slide tube 113, and an end shaft cover 114, the limiting slide tube 113 is provided with an eccentric handle 115, a pin 116, and a locking protrusion 117, the base shell 101 is provided with a limiting locking opening 120 and a bottom cover plate 118, wherein the eccentric handle 115 and the limiting slide tube 113 are movably matched through the pin 116, and a cam is provided at the contact position between the eccentric handle 115 and the end shaft cover 114. A non-return locking mechanism is formed between the locking protrusion 117 and the limiting locking opening 120, wherein the locking protrusion 117 and the limiting slide tube 113 are integrally formed; the rotating cam shaft 104 and the rotating rod 111 are synchronously rotated through the positioning pin 119. The base housing 101 is provided with a rotating rod 111. The rotating rod 111 is rotated clockwise to drive the rotating cam shaft 104 to rotate at the center of the base housing 101, and the sliding top block 102 is driven to move outward through friction, so that the diameter of the sliding top block 102 along the center is expanded and changed, and the parts are clamped and tightened in the reverse direction. The rotating rod 111 is provided with a pressure spring 112, which is used to drive the limit slide 113 and the locking protrusion 117 to move toward the rotating cam shaft 104, so as to achieve the non-return locking cooperation between the locking protrusion 117 and the limit locking mouth 120. The eccentric handle 115 is rotated to drive the limit slide 113 to slide out in the reverse direction, so that the locking protrusion 117 is separated from the limit locking mouth 120, and the rotating rod 111 is rotated clockwise to drive the sliding top block 102 to shrink under the pulling force of the shrink spring 110, so as to realize the disassembly of the parts.

[0022] A force-sensitive resistor 201 is provided on the contact surface between the sliding top block 102 and the part being held, and the force-sensitive resistor 201 is connected in series with an adjustable potentiometer 202 and an indicator light 203 in a DC circuit, wherein the adjustable potentiometer 202 is provided in the positive direction of the DC power supply, the indicator light 203 is provided in the negative direction of the DC power supply, and the force-sensitive resistor 201 is provided between the adjustable potentiometer 202 and the indicator light 203. A transistor is provided in parallel at both 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 provided in series with a speaker 204 in a branch circuit, and the speaker 204 can provide an alarm when the pressure of the sliding top block 102 on the part is too large.

[0023] Push the rotating rod 111 clockwise to drive the rotating camshaft 104 to drive the sliding top block 102 to move outward (relative sliding occurs between the rotating camshaft 104 and the sliding top block 102), and after quickly reaching the position of tightening the thin-walled parts, under the tightening force of the pressure spring 112 in the rotating rod 111, the limiting slide tube 113 automatically slides into the double-row limiting stopper 120 to be tightened and fixed, so as to realize the rapid clamping of the thin-walled parts; rotate the eccentric handle 115 to drive the limiting slide tube 113 to slide out of the double-row limiting stopper 120 in the opposite direction, push the rotating rod 111 counterclockwise to drive the rotating camshaft 104, and the contraction spring 110 pulls the check seat 109 to drive the sliding top block 102 to automatically shrink toward the center, so as to realize the automatic loosening of the thin-walled sleeve parts, and then realize the disassembly operation of the parts. The thin-walled sleeve parts quick clamping tool is easy to use and simple to operate. It solves the problem of rapid clamping of thin-walled sleeve parts in mechanical processing, as well as the problem of preventing deformation of parts in batch high-efficiency production and ensuring the accuracy of part shape and position tolerance after clamping and disassembly. It is easy to operate and suitable for batch rapid clamping and disassembly of multi-size thin-walled sleeve parts in mechanical processing, which improves the efficiency of mechanical processing production, ensures the accuracy of parts, reduces the risk of part quality and reduces the manufacturing cost.

[0024] When the sliding top block 102 clamps the part too hard, the resistance of the force-sensitive resistor 201 will be at its lowest, which will cause the voltage across the adjustable potentiometer 202 to increase. At this time, the voltage across the adjustable potentiometer 202 will increase to a voltage greater than 0.7V. At this time, the positive potential difference between the base and emitter of the NPN transistor will also be greater than 0.7V. Therefore, the collector and emitter of the transistor will be turned on. At this time, the speaker 204 will sound an alarm, alerting the operator. The user can also change the clamping pressure threshold at which the speaker 204 sounds an alarm according to the material properties of the clamped parts. Specifically, the resistance value of the adjustable potentiometer 202 is changed (the adjustable potentiometer 202 has its own 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 increase. Therefore, the pressure threshold at which the speaker 204 sounds an alarm can be changed by only adjusting the voltage difference between the two ends of the adjustable potentiometer 202 and 0.7V.

Claims

1. A thin-walled plate welding deformation control tool, characterized in that: The invention comprises a base shell (101), the upper end of the base shell (101) is fixedly provided with a cover shell (103) by means of a fastening screw (105), a sliding top block (102) is provided inside the cover shell (103), the inner end of the sliding top block (102) is provided with a rotating cam shaft (104), the middle part of the rotating cam shaft (104) is provided with a bearing (106), a locking nut (107), and a bearing end cover (108), a stop seat (109) is provided on the limit sliding guide block at the lower end of the sliding top block (102), the stop seat (109) is elastically connected to the bearing end cover (108) by means of a contraction spring (110), and the rotating cam shaft (104) is provided with a bearing (106), a locking nut (107), and a bearing end cover (108). A rotating rod (111) is provided at the lower end of the wheel axle (104); a positioning pin (119), a pressure spring (112), a limit slide tube (113), and an end shaft cover (114) are provided on the rotating rod (111); an eccentric handle (115), a pin shaft (116), and a locking protrusion (117) are provided on the limit slide tube (113); a limit locking opening (120) and a bottom cover plate (118) are provided on the base shell (101); the eccentric handle (115) and the limit slide tube (113) are movably matched via the pin shaft (116); and a cam is provided at the contact position between the eccentric handle (115) and the end shaft cover (114).

2. The thin-walled plate welding deformation control tool according to claim 1, characterized in that: A non-return locking mechanism is formed between the locking protrusion (117) and the limiting locking opening (120), wherein the locking protrusion (117) and the limiting sliding tube (113) are integrally formed; and synchronous rotation is achieved between the rotating cam shaft (104) and the rotating rod (111) via the positioning pin (119).

3. The thin-walled plate welding deformation control tool according to claim 2, characterized in that: A rotating rod (111) is provided in the base shell (101). Clockwise rotation of the rotating rod (111) can drive the rotating cam shaft (104) to rotate at the center of the base shell (101), and drive the sliding top block (102) to move outward through friction, thereby achieving an expansion change of the diameter of the sliding top block (102) along the center, and reversely clamping and tightening the parts.

4. The thin-walled plate welding deformation control tool according to claim 3, characterized in that: A pressure spring (112) is provided in the rotating rod (111) for driving the limit slide tube (113) and the locking protrusion (117) to move in the direction of the rotating cam shaft (104) to achieve a non-return locking engagement between the locking protrusion (117) and the limit locking opening (120).

5. The thin-walled plate welding deformation control tool according to claim 4, characterized in that: The eccentric handle (115) is rotated to drive the limit slide tube (113) to slide out in the opposite direction, so that the locking protrusion (117) is separated from the limit locking opening (120), and the rotating rod (111) is rotated clockwise to drive the sliding top block (102) to contract under the pulling force of the contraction spring (110), thereby realizing the disassembly of the parts.

6. The thin-walled plate welding deformation control tool according to claim 5, characterized in that: A force-sensitive resistor (201) is arranged on the contact surface between the sliding top block (102) and the clamped part. The force-sensitive resistor (201) is connected in series with an adjustable potentiometer (202) and an indicator light (203) in a DC circuit, wherein the adjustable potentiometer (202) is arranged in the positive direction of the DC power supply, the indicator light (203) is arranged in the negative direction of the DC power supply, and the force-sensitive resistor (201) is arranged between the adjustable potentiometer (202) and the indicator light (203).

7. The thin-walled plate welding deformation control tool according to claim 6, characterized in that: A triode is arranged in parallel at both ends of the adjustable potentiometer (202), the base of the triode is connected to the high potential point of the adjustable potentiometer (202), and the emitter of the triode is connected to the low potential point of the adjustable potentiometer (202).

8. The thin-walled plate welding deformation control tool according to claim 7, characterized in that: The collector and emitter of the transistor are connected in series with the speaker (204) in a branch circuit. When the pressure of the sliding top block (102) on the parts is too large, the speaker (204) can provide an alarm.

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