Equipment workbench feed amount alarm device based on variable frequency speed regulation

Abstract

The invention provides an equipment workbench feed amount alarm device based on variable frequency speed regulation, and relates to the technical field of equipment processing, a frequency converter body is additionally arranged in the existing space of a distribution box, so that the original 50Hz / 1000rpm fixed frequency spindle motor in double-sided milling processing equipment can be changed between 10Hz-100Hz / 200-2000rpm, and the frequency conversion speed regulation is realized. Fault alarm signals of an original directional frequency converter and an added feeding frequency converter of the device are connected into a PLC programming module of the device, when a frequency converter body gives an alarm and sends an instruction, the device can be shut down, an alarm lamp power supply loop is added in a power supply loop, an alarm lamp is added on an operation panel, and when the directional frequency converter and the feeding frequency converter break down, the alarm lamp can be turned off. An operator is reminded that the frequency converter body breaks down through flickering of the alarm lamp, and after transformation, the double-face milling machining equipment can achieve the functions of direct reading of feeding amount parameters, automatic shutdown of the equipment, frequency conversion fault alarm and the like on the premise that the low feeding amount is met and the machining precision is not changed.

Description

Technical Field

[0001] The present invention belongs to the technical field of equipment processing, and more specifically, relates to an equipment workbench feed amount alarm device based on variable frequency speed regulation. Background Art

[0002] A double-sided milling machine is a metalworking machine used for simultaneously milling two opposing surfaces of various workpieces. It consists of a bed, worktable, milling head, and control system. During operation, the workpiece is fixed to the worktable, and the milling heads on both sides drive the milling cutters at high speed. The worktable then moves the workpiece, allowing the cutters to simultaneously mill the two opposing surfaces of the workpiece, removing excess material and achieving efficient machining while ensuring dimensional accuracy, parallelism, and surface quality on both sides. It is widely used in fields such as machinery manufacturing and automotive parts processing. During production, the company planned to use the existing double-sided milling machine to process a new product. However, during trial production, it was discovered that the speed ratio of the machine's worktable feed gear set, designed based on the original product's technical specifications, could not meet the low feed rate requirements of the trial product's finishing process. The minimum feed rate could only reach 63 mm / min (the process requirement was 53 mm / min). As a result, the surface roughness of the finished product did not meet the technical specifications of the design. To meet the technical specifications of the new product's design, the equipment needed to be modified by adding gears to the original gear set, increasing the gear ratio combination, and expanding the machine's feed rate range.

[0003] However, the above installation method has the following problems:

[0004] First, because the equipment is outdated, after the gear group is disassembled and reassembled during the equipment modification, while the low feed rate requirements are met, it may cause a reduction in the equipment processing accuracy, resulting in the equipment modification not achieving the expected results. The modification of the equipment gear transmission part is prone to the problem of reduced equipment accuracy due to the disassembly and assembly of the gear group.

[0005] Secondly, programming is usually used to control the cutting process during the milling process. When performing programming operations, workers usually press buttons to input the program while observing the display panel for comparison and self-correction. However, the existing display panel is usually integrated with the programming panel and lacks the angle rotation adjustment function. Under different working environment lighting conditions and different operator physical conditions, the fixed-angle display panel is prone to light reflection and the display panel angle cannot be adjusted. The eyes and the screen may not be able to maintain the best visual angle, resulting in visual fatigue and other problems, affecting the convenience of processing operations. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a device for alarming the feed rate of an equipment workbench based on variable frequency speed regulation to solve the above problems.

[0007] A device worktable feed rate alarm device based on variable frequency speed regulation includes a double-sided milling processing equipment, the outer surface of the double-sided milling processing equipment is fixedly connected to a distribution box, a PLC programming module is arranged inside the distribution box, a group of relay elements are arranged at one end of the double-sided milling processing equipment close to the distribution box, a frequency converter body is arranged at one end of the double-sided milling processing equipment close to the distribution box, a box door is rotatably connected inside the distribution box, a Z-shaped bracket is fixedly connected to one end of the outer surface of the double-sided milling processing equipment close to the distribution box, a button control box is fixedly connected to the upper end of the Z-shaped bracket, an alarm light is arranged inside the button control box, a group of button bodies are arranged at one end of the button control box close to the alarm light, and an emergency stop button is arranged at one end of the button control box close to the group of button bodies.

[0008] Preferably, an illumination lamp is provided on the outer surface of the Z-shaped bracket, an end of the upper end of the Z-shaped bracket close to the emergency stop button is fixedly connected to a programming control box, and the upper end of the programming control box is fixedly connected to a bearing support seat.

[0009] Preferably, the bearing support seat is internally rotatably connected to a polished rod shaft, an outer surface of the polished rod shaft is sleeved with a programming display panel, and the programming display panel is rotatably connected to the upper end of the programming control box.

[0010] Preferably, two damping shafts are fixedly connected to one end of the programming control box and the programming display panel that are close to each other, and wiring ports are provided inside the programming control box and the programming display panel.

[0011] Preferably, a set of power connection lines are plugged into the two wiring ports, and a handle sliding round rod is slidably connected to the inside of the programming control box.

[0012] Preferably, a first gear-shaped limit block is fixedly connected inside the handle sliding round rod, a spring is fixedly connected inside the programming control box, and the spring is fixedly connected to the outer surface of the first gear-shaped limit block.

[0013] Preferably, a second gear-shaped limit block is sleeved on the outer surface of the polished rod shaft, the second gear-shaped limit block is fitted with the first gear-shaped limit block, and a triangular base is provided at the lower end of the double-sided milling processing equipment.

[0014] Preferably, a group of additional positioning seats are fixedly connected to the outer surface of the triangular base, and the group of additional positioning seats are all arranged on the outer surface of the double-sided milling processing equipment.

[0015] Preferably, four L-shaped connecting plates are rotatably connected inside the triangular base, and fixing bolts are threadedly connected inside the double-sided milling processing equipment, the triangular base and the four L-shaped connecting plates.

[0016] Preferably, outer surfaces of the four fixing bolts are threadedly connected with locking nuts, and the four locking nuts are respectively arranged on the upper ends of the four L-shaped connecting plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the present invention, by providing a frequency converter body and installing the frequency converter body in the existing space of the distribution box, the original 50Hz / 1000 rpm fixed frequency spindle motor in the double-sided milling processing equipment can be changed between 10Hz~100Hz / 200~2000 rpm, thereby changing the equipment feed rate to meet the process requirements, broadening the scope of use of the equipment, and the speed regulation is also more convenient and intuitive. The feed rate adjustment parameters can be directly displayed on the frequency converter body, and the fault alarm signals of the original directional frequency converter of the equipment and the added feed frequency converter are connected to the PLC programming module of the equipment. When the frequency converter body alarms, a command is issued at the same time to stop the equipment. An alarm light is added to the power supply circuit and an alarm light is added to the operation panel. When the directional inverter and feed inverter fail, the alarm light flashes to remind the operator that the inverter body has failed. There is no need to modify the gear transmission part of the equipment, avoiding the problem of reduced equipment accuracy caused by disassembly and assembly of the gear set. After the modification, the double-sided milling equipment can achieve direct reading of feed parameters, automatic shutdown of equipment, frequency conversion fault alarm and other functions while meeting low feed rate and unchanged processing accuracy. After the equipment is modified, parameter adjustment is intuitive, the operation process is simple, and the alarm information is clear, reducing the uncertainty of the operator.

[0019] In the present invention, a bearing support seat is provided, and the bearing support seat contains a bearing that provides support for the rotation of the programming display panel. The light rod shaft is sleeved on the bearing surface in the programming display panel. The programming display panel is rotatably connected to the upper end of the programming control box through the connection method of the bearing support seat and the light rod shaft. The programming control box and the light rod shaft are connected to the power supply by plugging in the wiring port. The power cord itself has elasticity and flexibility, and can adapt to the angle change of the programming display panel through its own deformation when the programming display panel is adjusted. The damping shaft is installed by screwing bolts at the upper end of the programming control box and the lower end of the programming display panel. The damping shaft can provide damping force during rotation. There are friction plates, grease or magnetic materials inside the damping shaft. During rotation, the friction plates rub against each other, or the grease is squeezed and flows, thereby forming a damping force to control the rotation speed and stability of the shaft. The programming display panel is set to be rotatable, which is convenient for operators to operate and view at different angles and positions.

[0020] In the present invention, a second gear-shaped limit block is provided, and a handle sliding round rod is additionally installed in the programming control box through sliding installation. When the programming control box and the programming display panel are programmed and touched, the first gear-shaped limit block and the second gear-shaped limit block installed on the surface of the handle sliding round rod and the light rod shaft fit together to achieve a limiting effect. The first gear-shaped limit block and the second gear-shaped limit block are similar in appearance to spur gears, and the tooth-like limit blocks inside them are interlaced with each other to achieve a limiting and fixing effect.

[0021] In the present invention, a triangular base is provided and an additional triangular base is installed at the lower end of the double-sided milling processing equipment. The triangular base has an outer shape similar to a triangle. Since the triangular structure has the characteristic of stability, after the triangular base is added, the contact between the equipment and the ground forms a more stable support system. When the double-sided milling processing equipment is in operation, the milling force will cause the equipment to produce certain vibrations and force changes. The triangular base can effectively disperse these forces and reduce the risk of the equipment overturning due to uneven force. For example, when milling large and irregular workpieces, the direction and size of the milling force are constantly changing. The triangular base can ensure that the equipment always remains stable, prevent tipping, ensure the safety of the equipment and operators, reduce deformation caused by external forces, and ensure the overall stability of the device.

[0022] In the present invention, by providing an L-shaped connecting plate, when the triangular base is installed, the double-sided milling processing equipment is hoisted as a whole and aligned with the surface of the additional positioning seat installed on the upper end of the triangular base. The four additional positioning seats are respectively located around the double-sided milling processing equipment, which has the effect of rapid positioning. At this time, the staff holds and screws the four L-shaped connecting plates to make the L-shaped connecting plates and the surface of the double-sided milling processing equipment fit together. At this time, the installation and fixation can be carried out by screwing the fixing bolts. The fixing bolts are threadedly connected to the double-sided milling processing equipment, the L-shaped connecting plate and the triangular base. After the screwing and fixing are completed, the surface of the double-sided milling processing equipment is tightened and reinforced by screwing the tightening nut to ensure the stability of its assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection structure of the distribution box of the present invention;

[0025] Figure 3 This is an exploded view of the triangular base connection of the present invention;

[0026] Figure 4 This is a schematic diagram of the inverter body connection structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the button control box connection structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the connection structure of the warning light of the present invention;

[0029] Figure 7 This is an exploded diagram of the programming and display panel connections of the present invention;

[0030] Figure 8 The present invention Figure 7 Enlarged view of point A in the middle.

[0031] In the figure, the correspondence between the component names and the drawing numbers is: 11. Double-sided milling equipment; 12. Distribution box; 13. PLC programming module; 14. Relay element; 15. Inverter body; 16. Box door; 17. Z-shaped bracket; 18. Button control box; 19. Alarm light; 21. Button body; 22. Emergency stop button; 23. Lighting lamp; 24. Programming control box; 25. Bearing support seat; 26. Optical rod shaft; 27. Programming display panel; 28. Damping shaft; 29. Wiring port; 31. Power connection line; 32. Handle sliding rod; 33. First gear-shaped limit block; 34. Spring; 35. Second gear-shaped limit block; 36. Triangular base; 37. Additional positioning seat; 38. L-shaped connecting plate; 39. Fixing bolt; 41. Tightening nut. DETAILED DESCRIPTION

[0032] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0033] See also Figures 1-8The present invention provides a device for alarming the feed rate of a working table of a device based on variable frequency speed regulation, comprising a double-sided milling device 11, wherein the outer surface of the double-sided milling device 11 is fixedly connected to a distribution box 12, the distribution box 12 is provided with a PLC programming module 13, the inner end of the double-sided milling device 11 close to the distribution box 12 is provided with a group of relay elements 14, the inner end of the double-sided milling device 11 close to the distribution box 12 is provided with a frequency converter body 15, the inner end of the distribution box 12 is rotatably connected to a box door 16, the outer surface of the double-sided milling device 11 close to the distribution box One end of the distribution box 12 is fixedly connected to a Z-shaped bracket 17, and the upper end of the Z-shaped bracket 17 is fixedly connected to a button control box 18. An alarm light 19 is provided inside the button control box 18, and a group of button bodies 21 are provided at one end of the button control box 18 close to the alarm light 19. An emergency stop button 22 is provided at one end of the button control box 18 close to the group of button bodies 21. The inverter body 15 is installed in the existing space of the distribution box 12, so that the original 50Hz / 1000 rpm fixed frequency spindle motor in the double-sided milling processing equipment 11 can be converted to 10Hz. ~100Hz / 200~2000rpm, thereby changing the equipment feed rate to meet the process requirements, broadening the scope of equipment use, and speed regulation is also more convenient and intuitive. The feed rate adjustment parameters can be directly displayed on the inverter body 15. The original directional inverter and the added feed inverter fault alarm signal of the equipment are connected to the equipment PLC programming module 13. When the inverter body 15 alarms, a command is issued at the same time to stop the equipment. An alarm light 19 is added to the power circuit and an alarm light 19 is added to the operation panel. When the directional inverter is on, the fault alarm signal of the original directional inverter and the added feed inverter is connected to the equipment PLC programming module 13. When the inverter body 15 alarms, an instruction is issued to stop the equipment. When the frequency converter and feed frequency converter fail, the alarm light 19 flashes to remind the operator that the frequency converter body 15 has failed. There is no need to modify the gear transmission part of the equipment, which avoids the problem of reduced equipment accuracy caused by disassembly and assembly of the gear set. After the modification, the double-sided milling processing equipment 11 can realize the functions of direct reading of feed parameters, automatic shutdown of equipment, and frequency conversion fault alarm while meeting the low feed rate and unchanged processing accuracy. After the equipment is modified, the parameter adjustment is intuitive, the operation process is simple, and the alarm information is clear, which reduces the uncertainty of the operator.

[0034] The outer surface of the Z-shaped bracket 17 is provided with a lighting lamp 23, and the upper end of the Z-shaped bracket 17 is fixedly connected to the end of the emergency stop button 22 with a programming control box 24, and the upper end of the programming control box 24 is fixedly connected to a bearing support seat 25, and the inner part of the bearing support seat 25 is rotatably connected to a polished rod shaft 26, and the outer surface of the polished rod shaft 26 is sleeved with a programming display panel 27, and the programming display panel 27 is rotatably connected to the upper end of the programming control box 24, and the end of the programming control box 24 and the programming display panel 27 that are close to each other is fixedly connected with two damping shafts 28, and the programming control box 24 and the programming display panel 27 are provided with wiring ports 29 inside, and a group of power connection lines 31 are plugged into the two wiring ports 29, and the programming control box 24 is slidably connected to a handle sliding circle Rod 32, the handle sliding round rod 32 is fixedly connected to the first gear-shaped limit block 33, the programming control box 24 is fixedly connected to the spring 34, the spring 34 is fixedly connected to the outer surface of the first gear-shaped limit block 33, the outer surface of the polished rod shaft 26 is sleeved with the second gear-shaped limit block 35, the second gear-shaped limit block 35 and the first gear-shaped limit block 33 are fitted together, the bearing support seat 25 contains a bearing that provides support for the rotation of the programming display panel 27, the polished rod shaft 26 is sleeved on the bearing surface in the programming display panel 27, and the programming display panel 27 is rotatably connected to the upper end of the programming control box 24 through the connection between the bearing support seat 25 and the polished rod shaft 26, and the programming control box 24 and the polished rod shaft 26 are connected by plugging the wiring port 29. The power supply is connected. The power cord itself has elasticity and flexibility. It can adapt to the angle change of the programming display panel 27 through its own deformation when the programming display panel 27 is adjusted. The damping shaft 28 is installed by screwing bolts at the upper end of the programming control box 24 and the lower end of the programming display panel 27. The damping shaft 28 can provide damping force during the rotation process. There are friction plates, grease or magnetic materials inside the damping shaft 28. When rotating, the friction plates rub against each other, or the grease is squeezed and flows, thereby forming a damping force to control the rotation speed and stability of the shaft. The programming display panel 27 is set to be rotatable to facilitate operators to operate and view at different angles and positions. A handle sliding round rod 3 is additionally installed in the programming control box 24 through sliding installation. 2. When the programming control box 24 and the programming display panel 27 are programmed by touch programming, the first gear-shaped limit block 33 and the second gear-shaped limit block 35 installed on the surface of the polished rod shaft 26 are fitted together by the handle sliding round rod 32 to achieve a limiting effect. The first gear-shaped limit block 33 and the second gear-shaped limit block 35 are similar in appearance to spur gears, and the limit blocks similar to teeth inside them are staggered with each other to achieve a limiting and fixing effect. Before adjusting the angle of the programming display panel 27, hold the handle sliding round rod 32 to pull it outward. At this time, the handle sliding round rod 32 will expand the tension spring 34, and the second gear-shaped limit block 35 on the surface of the polished rod shaft 26 will lose the fitting limit, and the programming display panel 27 can be pulled to adjust its angle.After the adjustment is completed, release the pull on the handle sliding rod 32, and pull the handle sliding rod 32 to slide back under the force of the spring 34, so that the first gear-shaped limit block 33 and the second gear-shaped limit block 35 return to the state of fitting and limiting.

[0035] The lower end of the double-sided milling processing equipment 11 is provided with a triangular base 36, and the outer surface of the triangular base 36 is fixedly connected to a group of additional positioning seats 37, and the group of additional positioning seats 37 are all arranged on the outer surface of the double-sided milling processing equipment 11. The inside of the triangular base 36 is rotatably connected to four L-shaped connecting plates 38. The double-sided milling processing equipment 11, the triangular base 36 and the four L-shaped connecting plates 38 are all threadedly connected to fixing bolts 39. The outer surfaces of the four fixing bolts 39 are all threadedly connected to tightening nuts 41. The four tightening nuts 41 are respectively arranged on the upper ends of the four L-shaped connecting plates 38. The double-sided milling processing equipment 11 is mainly used for milling two opposite surfaces of a workpiece to improve processing efficiency and accuracy. The equipment consists of a bed, a workbench, and a milling power. The double-sided milling machine 11 is composed of two heads (two, corresponding to the two processing surfaces of the workpiece) and a control system. When working, the workpiece is first placed on the workbench and firmly clamped by a fixture to ensure that the workpiece is stable and does not move during the processing. The control system controls the workbench to move according to a specific trajectory and speed according to a pre-set program. At the same time, the two milling power heads are started and the milling cutter rotates at high speed. As the workbench moves, the milling cutter contacts the workpiece and mills the two opposite surfaces of the workpiece at the same time to remove excess material, so that the workpiece achieves the required dimensional accuracy and surface roughness. In this way, the double-sided milling equipment 11 can complete the milling of both surfaces of the workpiece in one clamping, which greatly improves the processing efficiency compared to single-sided milling and then flipping. Efficiency, and can better ensure the parallelism and other form and position tolerance requirements between the two processing surfaces. When performing cutting operations, a control element is installed in the distribution box 12, and the cutting processing of the double-sided milling processing equipment 11 is controlled by the control element. The distribution box 12, the PLC programming module 13, the relay element 14 and the inverter body 15 are all installed and fixed by sliding on the slide rail on the inner surface of the distribution box 12 and screwing the bolts. The relay element 14 installed in the distribution box 12 is used to ensure the controllability of the double-sided milling processing equipment 11 during processing operations and the safety of power use. When performing cutting processing, the lighting lamp 23 is aimed at the surface of the workpiece to be processed, and the lighting lamp 23 emits bright light to ensure that the workpiece is evenly spaced under different lighting environments. It can be used. The Z-shaped bracket 17 fixed on the surface of the double-sided milling processing equipment 11 by screwing bolts is used to provide support for the button control box 18, the programming control box 24 and the lighting lamp 23. The button control box 18 allows the operator to press or release the button body 21 to control the equipment immediately and directly. For example, the operator can start or stop the equipment at any time through the start and stop buttons on the button control box 18 to directly intervene in the production process. The programming control box 24 allows professionals to set complex automated operation processes for the equipment by writing programs. The programs written by the staff and the codes reflected by the equipment will be intuitively displayed in the display panel inside the programming display panel 27. When the equipment is placed stably,A triangular base 36 is added to the lower end of the double-sided milling equipment 11. The triangular base 36 is in a shape similar to a triangle. Since the triangular structure has the characteristic of stability, after the triangular base 36 is added, the contact between the equipment and the ground forms a more stable support system. When the double-sided milling equipment 11 is in operation, the milling force will cause the equipment to produce certain vibrations and force changes. The triangular base 36 can effectively disperse these forces and reduce the risk of the equipment overturning due to uneven force. For example, when milling large and irregular workpieces, the direction and size of the milling force are constantly changing. The triangular base 36 can ensure that the equipment always remains stable, prevents tipping, ensures the safety of the equipment and operators, reduces deformation caused by external forces, and ensures the overall stability of the device. When installing the angled base 36, the double-sided milling machine 11 is hoisted as a whole and aligned with the surface of the additional positioning seat 37 installed on the upper end of the triangular base 36. The four additional positioning seats 37 are located around the double-sided milling machine 11, which plays a role in rapid positioning. At this time, the staff grasps and screws the four L-shaped connecting plates 38 so that the L-shaped connecting plates 38 and the surface of the double-sided milling machine 11 are in contact. At this time, the installation and fixation can be completed by screwing the fixing bolts 39. The fixing bolts 39 are threadedly connected to the double-sided milling machine 11, the L-shaped connecting plates 38 and the triangular base 36. After the screwing and fixation are completed, the surface of the double-sided milling machine 11 is tightened and reinforced by screwing the tightening nut 41 to ensure the stability of its assembly.

[0036] Working principle:

[0037] In the first step, the double-sided milling equipment 11 is mainly used to perform milling on the two opposite sides of the workpiece to improve the processing efficiency and accuracy. The equipment consists of a bed, a worktable, a milling power head (two, corresponding to the two processing surfaces of the workpiece) and a control system. When working, the workpiece is first placed on the worktable and firmly clamped by a fixture to ensure that the workpiece is stable and does not move during the processing. The control system controls the worktable to move according to a specific trajectory and speed according to a pre-set program. At the same time, the two milling power heads are started and the milling cutter rotates at high speed. As the worktable moves, the milling cutter contacts the workpiece and mills the two opposite sides of the workpiece at the same time to remove excess material, so that the workpiece achieves the required dimensional accuracy and surface roughness. In this way, The double-sided milling equipment 11 can complete the milling of two surfaces of the workpiece in one clamping, which greatly improves the processing efficiency compared to single-sided milling and then flipping. It can also better ensure the geometric tolerance requirements such as the parallelism between the two processing surfaces. When performing the cutting operation, a control element is installed in the distribution box 12, and the cutting process of the double-sided milling equipment 11 is controlled by the control element. The distribution box 12, the PLC programming module 13, the relay element 14 and the inverter body 15 are all installed and fixed by sliding on the slide rail on the inner surface of the distribution box 12 and screwing the bolts. The relay element 14 installed in the distribution box 12 is used to ensure the controllability of the double-sided milling equipment 11 during the processing operation and the safety of power use. During cutting, aim the lighting lamp 23 at the surface of the workpiece to be processed, and the lighting lamp 23 emits bright light to ensure that the workpiece can be used in different lighting environments. The Z-shaped bracket 17 fixed on the surface of the double-sided milling processing equipment 11 by screwing the bolts is used to provide support for the button control box 18, the programming control box 24 and the lighting lamp 23. The button control box 18 allows the operator to control the equipment immediately and directly by pressing or releasing the button body 21. For example, the operator can start or stop the equipment at any time through the start and stop buttons on the button control box 18 to directly intervene in the production process. The programming control box 24 allows professionals to set complex automated operation processes for the equipment by writing programs. The programs written by the staff and the equipment The reflected code will be intuitively displayed in the display panel within the programming display panel 27. When the equipment is placed stably, a triangular base 36 is installed at the lower end of the double-sided milling equipment 11. The triangular base 36 is in a shape similar to a triangle. Since the triangular structure has the characteristic of stability, after the triangular base 36 is added, the contact between the equipment and the ground forms a more stable support system. When the double-sided milling equipment 11 is running, the milling force will cause the equipment to vibrate and change in force. The triangular base 36 can effectively disperse these forces and reduce the risk of the equipment overturning due to uneven force. For example, when milling large and irregular workpieces, the direction and magnitude of the milling force are constantly changing. The triangular base 36 can ensure that the equipment always remains stable and prevents tipping over.To ensure the safety of equipment and operators, reduce deformation caused by external forces, and ensure the overall stability of the device, when installing the triangular base 36, the double-sided milling processing equipment 11 is hoisted as a whole and aligned with the surface of the additional positioning seat 37 installed on the upper end of the triangular base 36. The four additional positioning seats 37 are respectively located around the double-sided milling processing equipment 11, which plays a role in rapid positioning. At this time, the staff grasps and screws the four L-shaped connecting plates 38 so that the L-shaped connecting plates 38 and the surface of the double-sided milling processing equipment 11 fit together. At this time, the installation and fixation can be carried out by screwing the fixing bolts 39. The fixing bolts 39 are threadedly connected to the double-sided milling processing equipment 11, the L-shaped connecting plates 38 and the triangular base 36. After the screwing and fixation are completed, the surface of the double-sided milling processing equipment 11 is tightened and reinforced by screwing the tightening nut 41 to ensure the stability of its assembly.

[0038] The second step is to install a frequency converter body 15 in the existing space of the distribution box 12, so that the original 50Hz / 1000 rpm fixed frequency spindle motor in the double-sided milling processing equipment 11 can be changed between 10Hz~100Hz / 200~2000 rpm, thereby changing the equipment feed rate to meet the process requirements, broadening the scope of equipment use, and speed regulation is also more convenient and intuitive. The feed rate adjustment parameters can be directly displayed on the frequency converter body 15, and the fault alarm signals of the original directional frequency converter of the equipment and the added feed frequency converter are connected to the equipment PLC programming module 13. When the frequency converter body 15 alarms, it issues a command to stop the equipment and shut down the power supply circuit. An alarm light 19 is added to the power supply circuit and an alarm light 19 is added to the operation panel. When the directional frequency converter and the feed frequency converter fail, the alarm light 19 flashes to remind the operator that the frequency converter body 15 fails. There is no need to modify the gear transmission part of the equipment, which avoids the problem of reduced equipment accuracy caused by disassembly and assembly of the gear set. After the modification, the double-sided milling equipment 11 can realize the functions of direct reading of feed parameters, automatic shutdown of equipment, and frequency conversion fault alarm under the premise of meeting low feed rate and unchanged processing accuracy. After the equipment is modified, parameter adjustment is intuitive, the operation process is simple, and the alarm information is clear, which reduces the uncertainty of the operator.

[0039] In the third step, the bearing support seat 25 contains a bearing that provides support for the rotation of the programming display panel 27. The polished rod shaft 26 is sleeved on the bearing surface of the programming display panel 27. Through the connection between the bearing support seat 25 and the polished rod shaft 26, the programming display panel 27 is rotatably connected to the upper end of the programming control box 24. The programming control box 24 and the polished rod shaft 26 are connected to the power supply by plugging in the wiring port 29. The power cord itself has elasticity and flexibility, and can adapt to the angle change of the programming display panel 27 through its own deformation when the programming display panel 27 is adjusted. The damping shaft 28 is installed by screwing bolts between the upper end of the programming control box 24 and the lower end of the programming display panel 27. The damping shaft 28 can provide damping force during rotation. There are friction plates, grease or magnetic materials inside the damping shaft 28. During rotation, the friction plates rub against each other, or the grease is squeezed and flows, thereby forming a damping force to control the rotation speed and stability of the shaft. The programming display panel 27 is set to be rotatable to facilitate operators to operate and check at different angles and positions. Look, a handle sliding rod 32 is additionally installed in the programming control box 24 through sliding installation. When the programming control box 24 and the programming display panel 27 are programmed and touched, the first gear-shaped limit block 33 and the second gear-shaped limit block 35 installed on the surface of the handle sliding rod 32 and the polished rod shaft 26 fit together to achieve a limiting effect. The first gear-shaped limit block 33 and the second gear-shaped limit block 35 are similar in appearance to spur gears, and the limit blocks similar to the teeth inside them are staggered with each other to achieve a limiting and fixing effect. Before the panel 27 is adjusted in angle, the handle sliding rod 32 is gripped and pulled outward. At this time, the handle sliding rod 32 will expand the tension spring 34, and the second gear-shaped limit block 35 on the surface of the light rod shaft 26 will lose the fit limit. The programming display panel 27 can be pulled to adjust its angle. After the adjustment is completed, the handle sliding rod 32 is released, and the handle sliding rod 32 is pulled back to slide under the action of the spring 34, so that the first gear-shaped limit block 33 and the second gear-shaped limit block 35 are restored to the fit limit state.

[0040] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A device for alarming the feed rate of a worktable of a device based on variable frequency speed regulation, comprising a double-sided milling device (11), wherein a distribution box (12) is fixedly connected to the outer surface of the double-sided milling device (11), characterized in that: A PLC programming module (13) is provided inside the distribution box (12); a group of relay elements (14) is provided at one end of the double-sided milling processing equipment (11) close to the distribution box (12); a frequency converter body (15) is provided at one end of the double-sided milling processing equipment (11) close to the distribution box (12); a box door (16) is rotatably connected inside the distribution box (12); a Z-shaped bracket (17) is fixedly connected to one end of the outer surface of the double-sided milling processing equipment (11) close to the distribution box (12); a button control box (18) is fixedly connected to the upper end of the Z-shaped bracket (17); an alarm light (19) is provided inside the button control box (18); a group of button bodies (21) are provided inside the button control box (18) close to the alarm light (19); and an emergency stop button (22) is provided at one end of the button control box (18) close to the group of button bodies (21).

2. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 1, characterized in that: An illuminating lamp (23) is provided on the outer surface of the Z-shaped bracket (17); an end of the upper end of the Z-shaped bracket (17) close to the emergency stop button (22) is fixedly connected to a programming control box (24); and an upper end of the programming control box (24) is fixedly connected to a bearing support seat (25).

3. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 2, characterized in that: The bearing support seat (25) is internally rotatably connected to a polished rod rotating shaft (26), the outer surface of the polished rod rotating shaft (26) is sleeved with a programming display panel (27), and the programming display panel (27) is rotatably connected to the upper end of the programming control box (24).

4. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 3, characterized in that: Two damping shafts (28) are fixedly connected to one end of the programming control box (24) and the programming display panel (27) that is close to each other. Wiring ports (29) are provided inside the programming control box (24) and the programming display panel (27).

5. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 4, characterized in that: A set of power connection lines (31) are plugged into the two wiring ports (29), and a handle sliding round rod (32) is slidably connected to the programming control box (24).

6. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 5, characterized in that: A first gear-shaped limit block (33) is fixedly connected inside the handle sliding rod (32), a spring (34) is fixedly connected inside the programming control box (24), and the spring (34) is fixedly connected to the outer surface of the first gear-shaped limit block (33).

7. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 6, characterized in that: A second gear-shaped limit block (35) is sleeved on the outer surface of the polished rod rotating shaft (26), and the second gear-shaped limit block (35) and the first gear-shaped limit block (33) are fitted together. A triangular base (36) is provided at the lower end of the double-sided milling processing equipment (11).

8. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 7, characterized in that: A group of additional positioning seats (37) are fixedly connected to the outer surface of the triangular base (36), and the group of additional positioning seats (37) are all arranged on the outer surface of the double-sided milling processing equipment (11).

9. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 8, characterized in that: Four L-shaped connecting plates (38) are rotatably connected inside the triangular base (36), and fixing bolts (39) are threadedly connected inside the double-sided milling processing equipment (11), the triangular base (36) and the four L-shaped connecting plates (38).

10. The device for alarming the feed rate of a working table of equipment based on variable frequency speed regulation according to claim 9, characterized in that: The outer surfaces of the four fixing bolts (39) are all threadedly connected with a tightening nut (41), and the four tightening nuts (41) are respectively arranged on the upper ends of the four L-shaped connecting plates (38).

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