Device for processing butterfly spring with overload protection function

Abstract

The utility model relates to spring processing equipment technical field, concretely is a kind of device for processing butterfly spring with overload protection function, the upper end of test platform is equipped with multiple bottom blocks, the inner end of bottom block is vertically set limit rod, limit rod penetrates limiting block, and limiting block and limit rod sliding fit, the upper end of bottom block is vertically set vertical board, the top of bottom block is equipped with the rectangular frame being penetrated by vertical board, rectangular frame and vertical board slidingly connect, one side of rectangular frame is fixedly set arc-shaped limit sleeve, the cooperation of arc-shaped limit sleeve and limiting block in this device, when limiting block contacts arc-shaped limit sleeve in the process of pressing block, will prevent the continued downward movement of pressing block, avoid the overload pressure caused by control system anomaly or operation error, effectively prevent the plastic deformation or fracture of butterfly spring, guarantee the integrity of workpiece in testing process.

Description

Technical Field

[0001] This utility model relates to the field of spring processing equipment technology, specifically to a device for processing disc springs with overload protection function. Background Technology

[0002] In the field of disc spring production, spring force testing is a key step in ensuring product performance. In existing technology, disc springs need to be placed on a test bench and pressed down repeatedly by a pressure plate to test their spring force characteristics.

[0003] However, traditional testing devices generally lack overload protection structures for the pressure plate. When the equipment control system malfunctions or human error occurs, the pressure plate may apply pressure to the disc spring beyond the rated range. This overload pressure can cause the disc spring to undergo plastic deformation or even break, which not only renders the tested spring unusable but may also affect the adjustment of the production process due to incorrect test data. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a device for processing disc springs with overload protection function.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a device for processing disc springs with overload protection function, including a test bench and a control box. A pressing component and a control switch are fixedly installed at the upper end of the test bench. A pressing rod is provided at the output end of the pressing component. A detachable pressing block is provided at the bottom end of the pressing rod. Multiple limiting blocks are fixedly installed around the pressing block. The test platform has multiple base blocks at its upper end. A limiting rod is vertically installed at the inner end of each base block, and the limiting rod passes through the limiting block. The limiting block and the limiting rod are slidably engaged. A vertical plate is vertically installed at the upper end of each base block. A rectangular frame is installed above the base block, which is penetrated by the vertical plate. The rectangular frame is slidably connected to the vertical plate. An arc-shaped limiting sleeve is fixedly installed on one side of the rectangular frame. The arc-shaped limiting sleeve is penetrated by the limiting rod and is slidably connected to the limiting rod. A locking rod is installed on the outer side of the rectangular frame, which passes through the rectangular frame and is threadedly connected to the rectangular frame. One end of the locking rod abuts against the vertical plate.

[0006] To facilitate assembly of the pressure block, the present invention includes an improvement whereby a positioning sleeve is fixedly installed at the upper end of the pressure block, and the bottom end of the pressure rod is inserted into the positioning sleeve and threadedly connected to it.

[0007] To facilitate adjustment of the height of the arc-shaped limiting sleeve, the present invention is improved in that the arc-shaped limiting sleeve and the rectangular frame are integrated into one structure, and the vertical plate is provided with a scale strip.

[0008] To facilitate the adjustment of the positions of the multiple limiting rods, the present invention includes the following improvements: multiple guide rails are fixedly installed at the upper end of the test platform, and a guide groove is provided on the bottom block through which the guide rails pass, with the bottom block slidably connected to the guide rails.

[0009] Furthermore, the present invention includes the following improvements: the middle part of the guide rail is provided with a slot, the rear end of the bottom block is provided with a bottom rod that passes through the slot, a support plate is provided below the test platform, the control box is installed on the upper end of the support plate, a motor is fixedly installed on the upper end of the support plate, the output end of the motor is provided with a circular plate, the periphery of the circular plate is provided with multiple arc-shaped grooves, and the bottom rod passes through the arc-shaped grooves and is slidably connected with the arc-shaped grooves.

[0010] Furthermore, the improvement of this utility model is that the motor is a servo motor, and the output end of the motor is provided with a rotating shaft that connects to a circular plate.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a device for processing disc springs with overload protection function, which has the following beneficial effects: 1. Overload protection ensures safe spring testing: This device uses the cooperation of an arc-shaped limiting sleeve and a limiting block to prevent the pressing block from moving further down when the limiting block contacts the arc-shaped limiting sleeve during the pressing process. This avoids overload pressure caused by abnormal control system or operational errors, effectively prevents plastic deformation or breakage of the disc spring, and ensures the integrity of the workpiece during the testing process.

[0012] 2. Modular structure improves test adaptability: The pressure block is connected to the pressure rod by a positioning sleeve and thread, which can be quickly disassembled and replaced to accommodate different specifications of disc springs; the bottom block achieves automatic adjustment of the position of the limit rod by sliding cooperation between the guide rail and the guide groove, combined with the circular plate and arc groove structure driven by the motor, without the need for manual adjustment one by one, which greatly improves the testing efficiency of workpieces of different sizes. Attached Figure Description

[0013] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This utility model Figure 1 The main view; Figure 4 This utility model Figure 1 Side view; In the diagram: 1. Test bench; 2. Pressing assembly; 3. Pressing block; 4. Pressing rod; 5. Positioning sleeve; 6. Limiting block; 7. Control box; 8. Base block; 9. Guide rail; 10. Limiting rod; 11. Arc-shaped limiting sleeve; 12. Rectangular frame; 13. Vertical plate; 14. Locking rod; 15. Control switch; 16. Empty slot; 17. Base rod; 18. Motor; 19. Circular plate; 20. Arc-shaped slot. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model proposes a device for processing disc springs with overload protection function, including a test bench 1 and a control box 7. The upper end of the test bench 1 is fixedly provided with a pressing component 2 and a control switch 15. The output end of the pressing component 2 is provided with a pressing rod 4, and the bottom end of the pressing rod 4 is provided with a detachable pressing block 3. Multiple limiting blocks 6 are fixedly provided on the periphery of the pressing block 3. The test bench 1 has multiple base blocks 8 at its upper end. A limiting rod 10 is vertically installed at the inner end of the base block 8. The limiting rod 10 passes through the limiting block 6 and is slidably engaged with the limiting rod 10. A vertical plate 13 is vertically installed at the upper end of the base block 8. A rectangular frame 12 is installed above the base block 8 and is penetrated by the vertical plate 13. The rectangular frame 12 is slidably connected to the vertical plate 13. An arc-shaped limiting sleeve 11 is fixedly installed on one side of the rectangular frame 12. The arc-shaped limiting sleeve 11 is penetrated by the limiting rod 10 and is slidably connected with the limiting rod 10. A locking rod 14 is installed on the outer side of the rectangular frame 12. The locking rod 14 passes through the rectangular frame 12 and is threadedly connected to the rectangular frame 12. One end of the locking rod 14 abuts against the vertical plate 13.

[0016] 1. Parameter adjustment and assembly before testing: Multiple guide rails 9 are fixedly installed at the upper end of the test bench 1, and a guide groove is provided on the bottom block 8 through which the guide rails 9 pass. The bottom block 8 is slidably connected to the guide rails 9.

[0017] The guide rail 9 has a slot 16 in the middle. The bottom block 8 has a bottom rod 17 that passes through the slot 16 vertically at the rear end. The test platform 1 has a support plate below it. The control box 7 is installed on the upper end of the support plate. The upper end of the support plate has a motor 18 fixedly installed. The output end of the motor 18 has a circular plate 19. The circular plate 19 has multiple arc-shaped grooves 20 on its periphery. The bottom rod 17 passes through the arc-shaped grooves 20 and is slidably connected to the arc-shaped grooves 20.

[0018] Using the test bench 1 as the base, the motor 18 below the test bench 1 is started according to the size and specifications of the butterfly spring workpiece.

[0019] The circular plate 19 at the output end of the motor 18 rotates accordingly, and the arc groove 20 on its periphery drives the bottom rod 17 to slide in the empty groove 16 and the arc groove 20, thereby causing the bottom block 8 to slide along the guide groove on the guide rail 9, and simultaneously adjusting the position of multiple limit rods 10.

[0020] After adjustment, the pressure rod 4 and the pressure block 3 are threaded together by the positioning sleeve 5, so that the pressure block 3 is fixed at the bottom of the pressure rod 4. The limiting block 6 on the periphery of the pressure block 3 should be correspondingly sleeved on the outside of the limiting rod 10.

[0021] 2. Height setting of the overload protection structure: On the vertical plate 13 at the top of the base block 8, slide the rectangular frame 12 to adjust the height of the arc-shaped limiting sleeve 11. The scale strip on the vertical plate 13 can assist in precise positioning.

[0022] After determining the height, rotate the locking rod 14 clockwise so that one end abuts against the vertical plate 13, fixing the rectangular frame 12 to the vertical plate 13. At this time, the arc-shaped limiting sleeve 11 is simultaneously fixed to the outside of the limiting rod 10, forming a limit on the downward stroke of the limiting block 6.

[0023] 3. Testing procedure for disc springs: The disc spring workpiece is placed on the test bench 1, and a positioning area is formed by multiple limit rods 10 to ensure the stability of the workpiece position.

[0024] By setting the parameters of the pressing component 2 through the control box 7, and pressing the control switch 15 to start the pressing component 2, the pressure rod 4 at its output end drives the pressure block 3 to move downward, and the limit block 6 slides along the limit rod 10.

[0025] When the pressure block 3 is pressed down to the preset stroke, the limit block 6 contacts the arc-shaped limit sleeve 11 and is blocked from moving further down, thereby preventing the pressure block 3 from applying overload pressure to the spring. The pressing component 2 reciprocates according to the preset parameters to complete the spring force test.

[0026] 4. Adaptability adjustment for workpieces of various specifications: The upper end of the pressure block 3 is fixedly provided with a positioning sleeve 5, and the bottom end of the pressure rod 4 is inserted into the positioning sleeve 5 and threadedly connected to the positioning sleeve 5.

[0027] If a different size disc spring is replaced, the motor 18 is restarted to drive the circular plate 19 to rotate. Through the cooperation of the bottom rod 17 and the arc groove 20, the bottom block 8 is driven to slide on the guide rail 9, and the position of the limit rod 10 is quickly adjusted.

[0028] Meanwhile, the pressure block 3 can be detached and replaced with a pressure block 3 of the appropriate specification. It can be reinstalled at the bottom of the pressure rod 4 through the positioning sleeve 5 to ensure the universality of the testing device for different workpieces.

[0029] The arc-shaped limiting sleeve 11 and the rectangular frame 12 are integrated into one structure, and the vertical plate 13 is provided with a scale strip.

[0030] The scale bar on the vertical plate 13 cooperates with the rectangular frame 12 to precisely set the height of the arc-shaped limit sleeve 11, thereby accurately controlling the downward stroke of the pressure block 3.

[0031] The servo motor drives the circular plate 19 to rotate, ensuring the accuracy of the position adjustment of the limit rod 10. Combined with the parameter settings of the pressing component 2, the pressure value and stroke control during the test are more stable, ensuring the accuracy of the elasticity test data.

[0032] Motor type 18: Select AC servo motor to meet the device's requirements for precise positioning and dynamic response; Materials and Structure: The rotor uses rare earth permanent magnet materials (such as neodymium iron boron) to improve torque density and energy conversion efficiency; The outer shell is made of aluminum alloy, which balances lightweight and heat dissipation performance, and the surface is treated with anti-corrosion to adapt to industrial environments.

[0033] Performance characteristics: Built-in high-precision encoder (such as a 20-bit absolute encoder) enables millimeter-level precision control of the 10-position adjustment of the limit lever; Supports pulse or bus (such as Modbus, CANopen) control modes, and is compatible with control chassis 7; It has an overload protection function, which automatically cuts off the power when the sliding resistance of the bottom block 8 is abnormal, to prevent the motor 18 from burning out.

[0034] Control Chassis 7 Hardware Configuration: Controller: Adopts industrial-grade PLC (Programmable Logic Controller), supports multi-axis motion control, and is compatible with the coordinated control of pressing component 2 and motor 18; Driver: A dedicated driver for servo motors, with integrated PID control to ensure smooth operation of motor 18; Power supply module: A switching power supply (24V DC) is selected, which has overvoltage and overcurrent protection to power the controller and sensors.

[0035] Structural design: The outer shell is made of cold-rolled steel plate with powder coating, with an IP54 protection rating, making it dustproof and splashproof. The internal layout adopts a modular design, which facilitates later maintenance and functional expansion; Cooling system: Built-in temperature-controlled fan that automatically starts when the temperature inside the chassis exceeds 40°C to prevent components from overheating.

[0036] Control switch 15 type: Push-button control switch 15 is selected, which is divided into start button and emergency stop button; Specifications and performance: Start button: green, self-resetting, contact capacity AC 250V / 5A, with waterproof rubber ring on the surface, protection level IP65; Emergency stop button: red, mushroom-shaped self-locking type, conforms to IEC 60947-5-1 standard, ensuring rapid power cut-off in emergency situations.

[0037] The pressure component 2 can be a hydraulic cylinder to meet the precise pressure control requirements of the disc spring test.

[0038] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0039] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A device for processing a disc spring with overload protection function, comprising a test bench (1) and a control box (7), wherein a pressing component (2) and a control switch (15) are fixedly installed at the upper end of the test bench (1), a pressure rod (4) is provided at the output end of the pressing component (2), and a detachable pressure block (3) is provided at the bottom end of the pressure rod (4), characterized in that: Multiple limiting blocks (6) are fixedly arranged around the pressure block (3); The test bench (1) has multiple base blocks (8) at its upper end. A limiting rod (10) is vertically installed at the inner end of the base block (8). The limiting rod (10) passes through the limiting block (6), and the limiting block (6) and the limiting rod (10) are slidably engaged. A vertical plate (13) is vertically installed at the upper end of the base block (8). A rectangular frame (12) is installed above the base block (8) and is penetrated by the vertical plate (13). The rectangular frame (12) is slidably connected to the vertical plate (13). An arc-shaped limiting sleeve (11) is fixedly installed on one side of the rectangular frame (12). The arc-shaped limiting sleeve (11) is penetrated by the limiting rod (10) and is slidably connected to the limiting rod (10). A locking rod (14) is installed on the outer side of the rectangular frame (12). The locking rod (14) passes through the rectangular frame (12) and is threadedly connected to the rectangular frame (12). One end of the locking rod (14) abuts against the vertical plate (13).

2. The device for processing a disc spring with overload protection function according to claim 1, characterized in that: The upper end of the pressure block (3) is fixedly provided with a positioning sleeve (5), and the bottom end of the pressure rod (4) is inserted into the positioning sleeve (5) and threadedly connected to the positioning sleeve (5).

3. The device for processing a disc spring with overload protection function according to claim 2, characterized in that: The arc-shaped limiting sleeve (11) and the rectangular frame (12) are an integrated structure, and the vertical plate (13) is provided with a scale strip.

4. The device for processing a disc spring with overload protection function according to claim 3, characterized in that: Multiple guide rails (9) are fixedly installed at the upper end of the test bench (1), and a guide groove is provided on the bottom block (8) through which the guide rails (9) pass. The bottom block (8) is slidably connected to the guide rails (9).

5. The device for processing a disc spring with overload protection function according to claim 4, characterized in that: The guide rail (9) has a slot (16) in the middle. The bottom block (8) has a bottom rod (17) that passes through the slot (16) vertically at the rear end. The test platform (1) has a support plate below it. The control box (7) is installed on the upper end of the support plate. The upper end of the support plate has a motor (18) fixedly installed. The output end of the motor (18) has a circular plate (19). The circular plate (19) has multiple arc grooves (20) on its periphery. The bottom rod (17) passes through the arc grooves (20) and is slidably connected to the arc grooves (20).

6. The device for processing a disc spring with overload protection function according to claim 5, characterized in that: The motor (18) is a servo motor, and the output end of the motor (18) is provided with a rotating shaft that connects to the circular plate (19).

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