Surface derusting and polishing equipment and method before high-precision sheet metal part bending machining

Abstract

The invention relates to the technical field of sheet metal part machining, in particular to high-precision sheet metal part bending front surface derusting and grinding equipment and method.The high-precision sheet metal part bending front surface derusting and grinding equipment comprises a machine shell, a double-face grinding mechanism and a conveying mechanism, the double-face grinding mechanism is provided with a grinding opening, and the conveying mechanism is provided with a double-face grinding clamping and conveying structure; the grinding equipment further comprises two side edge grinding mechanisms and a rotary adjusting mechanism, each side edge grinding mechanism comprises two side edge grinding heads arranged in the width direction of the conveying mechanism and rolling clamping wheels close to the side edge grinding heads and capable of elastically clamping the edges of the plates, and each rolling clamping wheel is provided with a clamping opening capable of elastically clamping the edges of the plates. The double-face grinding mechanism and the side edge grinding mechanism are integrated, and multi-face grinding, including surface and edge comprehensive treatment, of the plate can be achieved in the single-time conveying process. Compared with a traditional single-face grinding or single-direction grinding procedure, the multi-face grinding design greatly shortens the machining time, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal processing, and in particular to equipment and a method for rust removal and polishing of the surface before high-precision sheet metal bending processing. Background Art

[0002] Sheet metal parts are widely used in the fields of automobiles, aerospace, electronics, home appliances, etc., and their processing quality directly affects the performance and appearance of the final product. In the production process of sheet metal parts, the plates usually need to be stored and stacked before bending and forming. However, due to the close contact between the upper and lower surfaces of the plates when they are stacked, the exposed area of ​​the upper and lower surfaces is relatively small, while the four sides are more susceptible to oxidation and rust due to the larger contact area with the outside air.

[0003] This phenomenon will inevitably affect the quality of the plate during storage and processing. If oxidation and rust are not dealt with in time, it will lead to the following problems:

[0004] Reduced bending accuracy: The presence of the rust layer makes the thickness of the sheet metal uneven. In the subsequent bending process, the bending accuracy of the sheet metal may be affected due to uneven local stress.

[0005] Surface quality issues: Rust will destroy the smoothness of the plate surface and affect the effects of subsequent surface treatment processes such as painting and electroplating.

[0006] Reduced material strength: Rust on the sheet will weaken its original mechanical strength and increase the risk of breakage or deformation during the production process.

[0007] In order to avoid the above problems, it is usually necessary to remove rust and polish the upper and lower surfaces and four sides of the sheet metal before bending. Traditional rust removal methods mainly include manual polishing, chemical treatment or mechanical equipment for rust removal.

[0008] However, these methods have certain limitations, such as:

[0009] Manual grinding has low efficiency and unstable quality: manual operation has poor controllability, which can easily cause uneven grinding and high labor intensity.

[0010] Chemical treatment may cause environmental pollution: Using acid and alkali chemical reagents for rust removal not only requires additional waste liquid treatment equipment, but also poses health hazards to operators.

[0011] Limitations of mechanical rust removal equipment: Existing mechanical rust removal equipment is mostly large-scale equipment, which is difficult to adapt to the production needs of small batches and multiple varieties of precision sheet metal parts.

[0012] Chinese patent publication number CN108247462B provides a sheet metal grinding device; it includes a frame, a motor and a grinding mechanism, the grinding mechanism includes a first rotating shaft, a limit piece, a grinding assembly and a rotating part; the frame is provided with a downward pressure spring; the grinding assembly includes a roller, a friction layer, and a negative pressure piston, an electromagnet is fixed on the frame, a first adsorption block and a rotating groove are provided on the negative pressure piston, a return spring and a rotating piston are provided in the rotating groove, a thread is provided on the first rotating shaft, a sliding block is provided on the rotating piston, and a second adsorption block is embedded in the rotating piston; a sliding spring and a switch are provided in the roller; an air inlet check valve is provided on the side wall of the roller, an air outlet check valve is fixed on the roller, a collection box is fixed on the end of the roller, and an exhaust port and a discharge port are provided on the collection box; a filter is fixed in the collection box.

[0013] The grinding device can effectively process the edge of the sheet metal, but due to design limitations, it is difficult to complete the fine grinding of the four sides of the sheet metal without manual adjustment. Operators usually need to manually guide the sheet metal into the grinding position in front of the equipment, and after completing the grinding of one side, adjust the direction of the sheet metal again to grind the remaining sides. This method not only increases the complexity of the operation, but also greatly reduces the processing efficiency. Summary of the invention

[0014] In response to the above problems, a high-precision sheet metal part bending processing pre-surface rust removal and grinding equipment and method are provided. The sheet is guided by a conveying mechanism to pass through the working ends of a double-sided grinding mechanism, a side grinding mechanism and a rotating adjustment mechanism in sequence, so that the upper and lower surfaces and four sides of the sheet can be polished during transportation, solving the problem that the existing grinding device requires manual loading and manual adjustment of the posture in order to grind all the sides.

[0015] In order to solve the problems of the prior art, the present invention provides a high-precision surface rust removal and grinding device for pre-bending processing of sheet metal parts, including a casing, and a double-sided grinding mechanism and a conveying mechanism arranged in the casing, the double-sided grinding mechanism having a grinding port for allowing a plate to pass horizontally, the conveying mechanism having a double-sided grinding clamping and conveying structure located on the feeding side and the discharging side of the grinding port, the grinding device also includes two side grinding mechanisms arranged in the casing and arranged along the conveying direction of the conveying mechanism, and a rotating adjustment mechanism arranged between the two side grinding mechanisms, the side grinding mechanism including two side grinding heads arranged along the width direction of the conveying mechanism, and a rolling clamping wheel close to the side grinding head and capable of elastically clamping the edge of the plate, the rolling clamping wheel having a clamping port that can elastically clamp the edge of the plate, the conveying mechanism also having a side grinding clamping and conveying structure located on the feeding side and the discharging side of the clamping port, after the long side of the plate is polished by one of the side grinding heads, the plate is rotated ninety degrees on the conveying mechanism by the rotating adjustment mechanism, and then the short side of the plate is polished by the other side grinding head.

[0016] Preferably, the side grinding mechanism also includes a spacing adjustment component arranged at the bottom of the conveying mechanism, and a grinding drive component arranged on the spacing adjustment component, the spacing adjustment component including a long bracket, two mounting seats, a bidirectional screw and a spacing adjustment motor, the long bracket is arranged at the bottom of the conveying mechanism, and the long bracket extends along the width direction of the conveying mechanism; the bidirectional screw is rotatably arranged in the long bracket along the length direction of the support; the two mounting seats are slidably arranged in the long bracket toward or away from each other along the length direction of the long bracket, the side grinding head is rotatably arranged in the mounting seat, and the rotation axis of the side grinding head extends in the vertical direction; the two ends of the bidirectional screw respectively pass through the two mounting seats and are threadedly connected thereto; the spacing adjustment motor is arranged at one end of the long bracket, and the output shaft of the spacing adjustment motor is transmission connected to the bidirectional screw; the grinding drive assembly is arranged on the long bracket and is transmission connected to the side grinding head.

[0017] Preferably, the grinding drive assembly comprises a driving shaft, a transmission shaft, a driven shaft and a grinding drive motor, wherein the driving shaft is rotatably arranged in a long bracket, the transmission shaft and the driven shaft are both rotatably arranged on a mounting seat, the driving shaft, the transmission shaft and the driven shaft are transmission-connected in sequence, the grinding drive motor is arranged at one end of the long bracket, the output shaft of the grinding drive motor is transmission-connected to the driving shaft, and the driven shaft is transmission-connected to the side grinding head.

[0018] Preferably, a driving shaft extending longitudinally is also provided in the mounting seat, the side grinding head is coaxially arranged on the driving shaft, a driven bevel gear is provided at one end of the driving shaft, and a driving bevel gear is provided at one end of the driven shaft, and the driving bevel gear and the driven bevel gear are meshed.

[0019] Preferably, the side grinding head is slidably connected to the drive shaft, and a reciprocating lifting connector is also provided in the mounting seat. The reciprocating lifting connector is transmission-connected to the side grinding head and the drive shaft. When the drive shaft rotates, the side grinding head is reciprocated and lifted in the longitudinal direction.

[0020] Preferably, the reciprocating lifting connector includes a sliding seat arranged in the mounting seat and capable of sliding longitudinally, and a guide plate coaxially arranged at one end of the transmission shaft, the drive shaft slides through the sliding seat, the side grinding head is located in the sliding seat, a guide groove extending laterally is arranged on one side of the sliding seat, and a guide column deviating from its axis is arranged at one end of the guide plate, the guide column extends into the guide groove and slides with it.

[0021] Preferably, a rotating sleeve coaxial with the driving shaft is provided on the mounting seat, the rotating sleeve and the mounting seat are rotationally connected, the rotating seat and the transmission shaft are connected through a synchronous belt transmission, the rotating sleeve and the driving shaft are engaged and slidably connected, and after the two mounting seats move toward each other, the rotating sleeve can input torque to the transmission shaft through the synchronous belt.

[0022] Preferably, two parallelogram connecting rods with an angle are provided on both sides of the mounting seat along the longitudinal direction, a connecting seat is provided on the outer side of the parallelogram connecting rod, and the rolling clamping wheel is rotatably provided on the inner side of the connecting seat. A tension spring is also provided between the two parallelogram connecting rods on the same side of the mounting seat. In the initial state, the two rolling clamping wheels elastically abut against each other.

[0023] Preferably, the rotation adjustment mechanism includes a visual detection camera, a hollow stepper motor, a suction cup and a slide cylinder. The camera end of the visual detection camera is arranged in the casing facing the conveying surface of the conveying mechanism, the slide cylinder is arranged in the casing longitudinally, the hollow stepper motor is arranged at the working end of the slide cylinder, and the suction cup is coaxially arranged at the bottom end of the center stepper motor output shaft.

[0024] The method for removing rust and polishing the surface before high-precision sheet metal bending processing is applied to the equipment for removing rust and polishing the surface before high-precision sheet metal bending processing, and comprises the following steps:

[0025] Step 1: The plate is placed at the feeding end of the conveying mechanism, and the upper and lower surfaces of the plate are polished by the double-sided polishing mechanism when the plate passes through the double-sided polishing mechanism;

[0026] Step 2: The plate is sent to the first side plate grinding mechanism through the conveying mechanism, and the side plate grinding mechanism grinds a pair of side edges of the plate;

[0027] Step 3: When the plate is sent to the rotating adjustment mechanism through the conveying mechanism, the rotating adjustment mechanism guides the plate to rotate ninety degrees on the conveying mechanism;

[0028] Step 4: The rotated plate is sent to the second side grinding mechanism via the conveying mechanism. The second side grinding mechanism grinds the other pair of side edges of the plate. The polished plate is sent out of the casing via the conveying mechanism.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] Improve grinding efficiency: The equipment integrates double-sided grinding mechanism and side grinding mechanism, which can realize multi-sided grinding of plates in a single transmission process, including comprehensive surface and edge processing. Compared with traditional single-sided grinding or single-direction grinding process, this multi-sided grinding design greatly shortens processing time and improves production efficiency.

[0031] Enhanced grinding consistency and quality: The double-sided grinding mechanism and side grinding head ensure that all parts of the board are evenly sanded, avoiding the unevenness that may occur during manual sanding. The rotation adjustment mechanism can accurately rotate the board 90 degrees, so that the edges in different directions can be sanded with the same quality, further ensuring the smoothness and consistency of the overall surface.

[0032] Reduced need for manual operation: The automated design of the equipment reduces reliance on manual operation. Through the automatic conveying and clamping structure, the plate can remain stable and precisely positioned throughout the grinding process, reducing the need for manual intervention, thereby reducing operational difficulty and labor costs.

[0033] Reduced defective rate and rework requirements: Through efficient rust removal and grinding, this equipment can significantly reduce surface defects, thereby reducing the potential problems in subsequent processing. Improved grinding quality also helps with accuracy in subsequent bending processing, reducing rework and defective products, and further saving material and production costs.

[0034] Improve safety and working environment: The fully enclosed housing design of the equipment and the automated grinding process reduce the leakage of grinding dust and debris, which helps to maintain the cleanliness and safety of the workshop. At the same time, the automated grinding process reduces the risk of workers directly contacting the grinding head and improves the overall operating safety.

[0035] Strong adaptability to meet the needs of various specifications: The design of this equipment is suitable for plates of different specifications and sizes. In particular, through the rotation adjustment mechanism and the side grinding mechanism, it can flexibly adapt to the grinding needs of long and short sides. This adaptability makes the equipment more widely used in production lines and can meet diverse processing requirements.

[0036] Easy maintenance: The equipment adopts modular design, and each grinding mechanism and conveying mechanism are relatively independent, which is convenient for daily maintenance and upkeep. The modular design also means that when parts need to be replaced, only the specific module needs to be replaced without disassembling the entire equipment, further reducing maintenance costs and downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional diagram of the surface rust removal and polishing equipment before high-precision sheet metal bending processing.

[0038] Figure 2 It is a three-dimensional cross-sectional view of the surface rust removal and polishing equipment before high-precision sheet metal bending processing.

[0039] Figure 3 It is a three-dimensional diagram of the side grinding mechanism and the rotation adjustment mechanism in the front surface rust removal and grinding equipment for high-precision sheet metal bending processing.

[0040] Figure 4 It is a three-dimensional diagram of the side grinding mechanism in the front surface rust removal and grinding equipment of high-precision sheet metal bending processing.

[0041] Figure 5 It is a three-dimensional cross-sectional view of the side grinding mechanism in the front surface rust removal and grinding equipment of high-precision sheet metal bending processing.

[0042] Figure 6 It is a cross-sectional view of the side grinding mechanism in the front surface rust removal and grinding equipment of high-precision sheet metal bending processing.

[0043] Figure 7 It is a partial three-dimensional exploded view of the side grinding mechanism in the front surface rust removal and grinding equipment of high-precision sheet metal bending processing.

[0044] Figure 8 It is a three-dimensional diagram of the reciprocating lifting connector in the pre-surface rust removal and polishing equipment for high-precision sheet metal bending processing.

[0045] Fig. 9 It is a three-dimensional picture of the reciprocating lifting connector in the pre-surface rust removal and polishing equipment for high-precision sheet metal bending processing from the first perspective.

[0046] Fig.10 It is a stereoscopic image of the reciprocating lifting connector in the pre-surface rust removal and polishing equipment for high-precision sheet metal bending processing from the second perspective.

[0047] The numbers in the figure are: 1, housing; 2, double-sided grinding mechanism; 3, conveying mechanism; 4, side grinding mechanism; 41, side grinding head; 411, mounting wheel; 4111, ring groove; 412, grinding sleeve belt; 42, rolling clamping wheel; 431, long bracket; 432, mounting seat; 433, two-way screw rod; 434, spacing adjustment motor; 435, driving shaft; 436, driven bevel gear; 437, driving gear wheel; 438, rotating Moving sleeve; 439, synchronous belt; 441, driving shaft; 442, transmission shaft; 443, driven shaft; 444, grinding drive motor; 451, sliding seat; 4511, guide groove; 452, guide plate; 4521, guide column; 46, parallelogram connecting rod; 47, connecting seat; 48, tension spring; 5, rotation adjustment mechanism; 51, visual inspection camera; 52, hollow stepping motor; 53, suction cup; 54, slide cylinder. DETAILED DESCRIPTION

[0048] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides:

[0050] The invention discloses a high-precision sheet metal part bending processing front surface rust removal and grinding equipment, comprising a housing 1, and a double-sided grinding mechanism 2 and a conveying mechanism 3 arranged in the housing 1, wherein the double-sided grinding mechanism 2 has a grinding port for allowing a plate to pass horizontally, and the conveying mechanism 3 has a double-sided grinding clamping and conveying structure located at the feeding side and the discharging side of the grinding port, and the grinding equipment also comprises two side grinding mechanisms 4 arranged in the housing 1 along the conveying direction of the conveying mechanism 3, and a rotating adjustment mechanism 5 arranged between the two side grinding mechanisms 4, and the side grinding mechanism 4 comprises Two side grinding heads 41 are arranged along the width direction of the conveying mechanism 3, and a rolling clamping wheel 42 is close to the side grinding head 41 and can elastically clamp the edge of the plate. The rolling clamping wheel 42 has a clamping port that can elastically clamp the edge of the plate. The conveying mechanism 3 also has a side grinding, clamping and conveying structure located on the feeding side and the discharging side of the clamping port. After the long side of the plate is polished by one of the side grinding heads 41, the plate is rotated ninety degrees on the conveying mechanism 3 by the rotating adjustment mechanism 5, and then the short side of the plate is polished by the other side grinding head 41.

[0051] The main structure of the grinding equipment includes a housing 1, inside which a double-sided grinding mechanism 2 and a conveying mechanism 3 are arranged. The double-sided grinding mechanism 2 is designed with a grinding port for the plate to pass through horizontally, so that the plate can be ground on both sides at the same time during the transmission process. The conveying mechanism 3 includes a double-sided grinding clamping and conveying structure located on both sides of the grinding port to ensure that the plate moves stably and smoothly during the entire grinding process.

[0052] The double-sided grinding mechanism 2 includes but is not limited to two parallel grinding rollers, which extend along the width direction of the conveying mechanism 3. When the plate passes between the two grinding rollers, the grinding rollers can grind the upper and lower surfaces of the plate. The grinding rollers are prior art and will not be described in detail here.

[0053] The conveying mechanism 3 includes but is not limited to conveying rollers arranged at equal intervals, and the conveying rollers are arranged in two rows, upper and lower, and the plate can be clamped and moved between the two rows of conveying rollers; the conveying mechanism 3 may include two conveyor belts arranged in parallel, and a clamping surface can be formed between the two conveyor belts to clamp the plate for movement. The conveying mechanism 3 is a prior art and will not be described in detail here.

[0054] In order to further improve the comprehensiveness of grinding, the grinding device also integrates two side grinding mechanisms 4, which are arranged in sequence in the housing 1 along the conveying direction. The side grinding mechanism 4 includes two side grinding heads 41 arranged along the width direction of the conveying mechanism 3, which are specially used for grinding the edges of the plates. These grinding heads are equipped with rolling clamping wheels 42, which can not only elastically clamp the edges of the plates, but also ensure the stability of the position of the plates during the grinding process.

[0055] The rotating adjustment mechanism 5 is located between the two side grinding mechanisms 4, and can rotate the plate 90 degrees during the conveying process so as to grind the edges in different directions. Through this design, the equipment can first grind the long side of the plate, and then grind the short side after passing through the rotating adjustment mechanism 5, ensuring that every part of the plate can be fully processed. This design not only makes the equipment more convenient in operation, but also ensures the surface quality of the plate before bending.

[0056] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the side grinding mechanism 4 also includes a spacing adjustment component arranged at the bottom of the conveying mechanism 3, and a grinding drive component arranged on the spacing adjustment component. The spacing adjustment component includes a long bracket 431, two mounting seats 432, a bidirectional screw rod 433 and a spacing adjustment motor 434.

[0057] The long bracket 431 is arranged at the bottom of the conveying mechanism 3, and the long bracket 431 extends along the width direction of the conveying mechanism 3;

[0058] The bidirectional screw rod 433 is rotatably arranged in the long bracket 431 along the length direction of the support;

[0059] Two mounting seats 432 are slidably disposed in the long bracket 431 in opposite directions along the length direction of the long bracket 431, and the side grinding head 41 is rotatably disposed in the mounting seats 432, and the rotation axis of the side grinding head 41 extends in the vertical direction;

[0060] Two ends of the bidirectional screw rod 433 respectively penetrate the two mounting seats 432 and are threadedly connected thereto;

[0061] The spacing adjustment motor 434 is arranged at one end of the long bracket 431, and the output shaft of the spacing adjustment motor 434 is transmission-connected with the bidirectional screw rod 433;

[0062] The grinding drive assembly is disposed on the long bracket 431 and is in driving connection with the side grinding head 41 .

[0063] The side grinding mechanism 4 also includes a spacing adjustment component arranged at the bottom of the conveying mechanism 3, and a grinding drive component arranged on the spacing adjustment component. The spacing adjustment component is composed of a long bracket 431, two mounting seats 432, a bidirectional screw 433 and a spacing adjustment motor 434. The long bracket 431 is arranged at the bottom of the conveying mechanism 3 and extends along the width direction of the conveying mechanism 3 to ensure the stability of the entire system. The bidirectional screw 433 is rotatably installed in the long bracket 431 along the length direction of the support, and the two mounting seats 432 are slidably arranged in the long bracket 431 along the length direction of the long bracket 431, and can move toward or away from each other. The side grinding head 41 is rotatably installed through the mounting seat 432, and its rotation axis extends in the vertical direction to ensure accurate grinding of the side of the plate. The two ends of the bidirectional screw 433 respectively penetrate the two mounting seats 432 and are threadedly connected thereto, so that the rotation of the screw can drive the mounting seat 432 to slide along the long bracket 431, thereby realizing accurate adjustment of the spacing of the grinding heads. The spacing adjustment motor 434 is arranged at one end of the long bracket 431, and is connected to the bidirectional screw 433 through its output shaft. The rotation of the motor drives the screw to rotate, thereby realizing precise control of the spacing of the mounting seat 432. The grinding drive assembly is installed on the long bracket 431, and is connected to the side grinding head 41 to provide the power required for grinding. Through this design, the equipment can accurately adjust the spacing of the grinding heads according to the width of different plates, making the grinding process more flexible and efficient, while ensuring the consistency and accuracy of the grinding quality. This structural design also enhances the adaptability of the equipment and can meet the processing requirements of plates of different specifications.

[0064] like Figure 7 As shown, the grinding drive assembly comprises a driving shaft 441, a transmission shaft 442, a driven shaft 443 and a grinding drive motor 444. The driving shaft 441 is rotatably disposed in the long bracket 431. The transmission shaft 442 and the driven shaft 443 are both rotatably disposed on the mounting seat 432. The driving shaft 441, the transmission shaft 442 and the driven shaft 443 are transmission connected in sequence. The grinding drive motor 444 is disposed at one end of the long bracket 431. The output shaft of the grinding drive motor 444 is transmission connected to the driving shaft 441. The driven shaft 443 is transmission connected to the side grinding head 41.

[0065] The grinding drive assembly is composed of a driving shaft 441, a transmission shaft 442, a driven shaft 443 and a grinding drive motor 444, wherein the driving shaft 441 is rotatably arranged in the long bracket 431, and the transmission shaft 442 and the driven shaft 443 are both rotatably arranged on the mounting seat 432, forming a stable transmission. Specifically, the driving shaft 441, the transmission shaft 442 and the driven shaft 443 are sequentially connected by a transmission belt. This design can effectively transmit power, making the grinding process more stable and efficient. The grinding drive motor 444 is installed at one end of the long bracket 431, and its output shaft is connected to the driving shaft 441. After the grinding drive motor 444 is started, the driving shaft 441 drives the transmission shaft 442 and the driven shaft 443 to rotate through the transmission system, and finally realizes the step-by-step transmission of power, thereby driving the side grinding head 41 to perform rotational grinding. The arrangement of the transmission shaft 442 and the driven shaft 443 can ensure that the grinding head can obtain sufficient and uniform power support under different grinding requirements, thereby improving the grinding accuracy and efficiency. The driven shaft 443 is directly connected to the side grinding head 41, which means that when the driven shaft 443 rotates, the side grinding head 41 rotates synchronously, thereby performing an effective grinding operation. Such a transmission design enables the equipment to be flexibly adjusted according to different grinding requirements when performing side grinding, and maintains the continuity and stability of power transmission, while also reducing energy loss. It not only improves the grinding ability of the equipment, but also further ensures the coordinated operation of various components during the processing process, thereby improving the reliability and service life of the equipment.

[0066] like Figure 7 As shown, a driving shaft 435 extending in the longitudinal direction is also provided in the mounting seat 432, and the side grinding head 41 is coaxially arranged on the driving shaft 435. A driven bevel gear 436 is provided at one end of the driving shaft 435, and a driving bevel gear is provided at one end of the driven shaft 443, and the driving bevel gear and the driven bevel gear 436 are meshed with each other.

[0067] The side grinding head 41 includes a mounting wheel 411 coaxially arranged on the driving shaft 435 and a grinding sleeve 412 sleeved on the mounting wheel 411 . A coaxial annular groove 4111 is arranged on the circumferential surface of the mounting wheel 411 .

[0068] A drive shaft 435 extending in the longitudinal direction is also provided in the mounting seat, and the side grinding head 41 is coaxially provided on the drive shaft 435. A driven bevel gear 436 is installed at one end of the drive shaft 435, and a driving bevel gear is installed at one end of the driven shaft 443. The driving bevel gear and the driven bevel gear 436 are meshed to achieve effective power transmission. This bevel gear design not only ensures the synchronous rotation of the side grinding head 41, but also, through the meshing relationship of the bevel gears, enables the power transmitted by the driven shaft 443 to generate a vertical torque on the drive shaft 435, thereby driving the side grinding head 41 to perform efficient rotational grinding.

[0069] The side grinding head 41 includes a mounting wheel 411 coaxially arranged on a driving shaft 435, and a grinding sleeve 412 sleeved on the mounting wheel 411. The mounting wheel 411 is provided with a coaxial annular groove 4111 on its circumferential surface. The annular groove 4111 is used to prevent the side of the plate from directly abutting against the mounting wheel 411 and deforming when the side plate of the plate abuts against the grinding sleeve 412 in the radial direction. The grinding sleeve 412 is the part that actually performs the grinding work. Its material and surface structure have been specially processed, and it can effectively complete the fine grinding of the side of the plate. Through this structure, the side grinding head 41 can not only stably transmit power, but also ensure the stability and accuracy during the grinding process. Not only does it improve the grinding effect, but it also extends the service life of the equipment, reduces the frequency of maintenance and replacement of parts, and enables the equipment to maintain a stable grinding quality during long-term operation.

[0070] like Figure 8 , Fig. 9 and Fig.10 As shown, the side grinding head 41 is slidably connected with the driving shaft 435, and a reciprocating lifting connector is also provided in the mounting seat 432. The reciprocating lifting connector is transmission-connected to the side grinding head 41 and the transmission shaft 442. When the transmission shaft 442 rotates, the side grinding head 41 is reciprocated and lifted in the longitudinal direction.

[0071] In the grinding equipment, the grinding sleeve can be lifted and lowered reciprocatingly along the thickness direction of the plate during grinding. This design effectively avoids the side of the plate from continuously contacting a certain part of the grinding sleeve for a long time during the grinding process, thereby preventing the grinding sleeve belt 412 from being cut. When the grinding sleeve moves up and down along the thickness direction of the plate, the contact point changes continuously, which makes the grinding sleeve belt 412 more evenly stressed during the grinding process of the plate, thereby extending the service life of the grinding sleeve belt 412. By reducing the occurrence of local wear, this design not only improves the durability of the grinding sleeve belt 412, but also reduces the maintenance frequency and related costs of the equipment. The reciprocating lifting movement ensures that every part of the grinding process can be treated evenly, avoiding the problem of cutting and damage of the grinding sleeve belt 412 due to long-term wear, so that the equipment can maintain stable grinding quality during long-term continuous operation.

[0072] like Figure 8 , Fig. 9 and Fig.10As shown, the reciprocating lifting connector includes a sliding seat 451 arranged in the mounting seat 432 and capable of sliding in the longitudinal direction, and a guide plate 452 coaxially arranged at one end of the transmission shaft 442, the driving shaft 435 slides through the sliding seat 451, the side grinding head 41 is located in the sliding seat 451, and a guide groove 4511 extending in the transverse direction is arranged on one side of the sliding seat 451, and a guide column 4521 deviating from its axis is arranged at one end of the guide plate 452, and the guide column 4521 extends into the guide groove 4511 and slides with it.

[0073] The structural design of the reciprocating lifting connector includes a sliding seat 451 that is set in the mounting seat 432 and can slide in the longitudinal direction, and a guide plate 452 that is coaxially set at one end of the drive shaft 442. This design ensures that the entire grinding system can be flexibly adjusted during operation. The drive shaft 435 slides through the sliding seat 451, providing the necessary support and stability, while allowing the sliding seat 451 to slide smoothly on the drive shaft 435. The side grinding head 41 is cleverly placed in the sliding seat 451 so that it can move up and down with the movement of the sliding seat 451.

[0074] A guide groove 4511 extending in the transverse direction is designed on one side of the sliding seat 451. The function of the guide groove 4511 is to guide and control the motion trajectory of the sliding seat 451. A guide column 4521 deviating from its axis is provided at one end of the guide plate 452. The guide column 4521 extends into the guide groove 4511 and forms a sliding fit with the guide groove 4511. With this design, when the transmission shaft 442 rotates, the guide plate 452 also rotates, and then the guide column 4521 slides in the guide groove 4511. This sliding fit enables the sliding seat 451 to perform precise lifting and lowering motion along the longitudinal direction.

[0075] The advantage of this structure is that, through the cooperation between the guide column 4521 and the guide groove 4511, the rotational motion of the transmission shaft 442 can be converted into the longitudinal reciprocating lifting motion of the sliding seat 451. This conversion mechanism not only effectively drives the lifting and lowering of the side grinding head 41, but also ensures the stability and accuracy of the lifting and lowering motion. Because the guide column 4521 is set off the axis, with the rotation of the guide plate 452, the sliding seat 451 can move up and down during the grinding process, avoiding the grinding head from continuously grinding at the same height, thereby preventing the problem of local wear.

[0076] like Figure 7As shown, a rotating sleeve 438 coaxial with the driving shaft 441 is provided on the mounting seat 432, the rotating sleeve 438 and the mounting seat 432 are rotationally connected, the rotating seat and the transmission shaft 442 are transmission connected by a synchronous belt 439, the rotating sleeve 438 and the driving shaft 441 are engaged and slidably connected, and after the two mounting seats 432 move toward each other, the rotating sleeve 438 can input torque to the transmission shaft 442 through the synchronous belt 439.

[0077] A rotating sleeve 438 coaxial with the driving shaft 441 is provided on the mounting seat 432, and the rotating sleeve 438 is closely matched with the mounting seat 432 through a rotating connection. This design allows the rotating sleeve 438 to rotate freely on the mounting seat 432 without being restricted by the fixed position of the mounting seat 432. The advantage of this structure is that the free rotation of the rotating sleeve 438 provides greater flexibility for the system and can adapt to various operating conditions.

[0078] The rotating sleeve 438 and the transmission shaft 442 are connected by a synchronous belt 439, which ensures that the power can be effectively transmitted from the rotating sleeve 438 to the transmission shaft 442. The synchronous belt 439 transmission not only has the ability to efficiently transmit torque, but also can ensure the synchronous rotation between the transmission shaft 442 and the rotating sleeve 438, avoiding slippage or asynchronism. This transmission method is usually selected in mechanical systems that require high precision and high reliability, because it can reduce energy loss while ensuring stable operation of the system.

[0079] The rotating sleeve 438 and the driving shaft 441 are connected by an interlocking sliding connection, so that the rotating sleeve 438 can be slidably adjusted within a certain range relative to the driving shaft 441. A key advantage of this sliding connection design is that it allows the system to be adjusted in actual operation, ensuring flexibility in response to different working conditions, and further optimizing the adaptability of the equipment. When the two mounting seats 432 move toward each other, the rotating sleeve 438 can input torque to the drive shaft 442 through the synchronous belt 439, thereby driving the rotation of the drive shaft 442. In this way, the system can accurately adjust the movement of the drive shaft 442 under different operating conditions as required to ensure the stability and accuracy of the grinding operation.

[0080] like Figure 4 As shown, two parallelogram connecting rods 46 with an angle are provided on both sides of the mounting seat 432 along the longitudinal direction, a connecting seat 47 is provided on the outer side of the parallelogram connecting rod 46, and the rolling clamping wheel 42 is rotatably provided on the inner side of the connecting seat 47. A tension spring 48 is also provided between the two parallelogram connecting rods 46 on the same side of the mounting seat 432. In the initial state, the two rolling clamping wheels 42 elastically abut against each other.

[0081] Connecting seats 47 are provided on the outside of the parallelogram connecting rods 46. Rolling clamping wheels 42 are provided on the inside of the connecting seats 47. These clamping wheels cooperate with other components by rotating to achieve stable clamping of plates or other workpieces. The design of the rolling clamping wheels 42 enables it to clamp and guide with minimal friction when the system moves, thereby reducing energy loss and protecting the surface of the workpiece from damage.

[0082] A tension spring 48 is also provided between the two parallelogram connecting rods 46 on the same side of the mounting seat 432. These tension springs 48 act as elastic elements in the system and can provide continuous clamping force for the rolling clamping wheels 42. In the initial state, the two rolling clamping wheels 42 are elastically abutted against each other by the action of the tension springs 48, forming an automatic clamping state. This means that when there is no external force, the system can automatically maintain the clamping force, thereby ensuring that the workpiece will not loosen or slip.

[0083] A significant advantage of this design is that it can automatically adjust the clamping force in the case of different workpiece thicknesses or sizes. When the workpiece is clamped, the rolling clamping wheel 42 can adapt to the size changes of the workpiece through the elastic characteristics of the tension spring 48 without manual adjustment. This not only simplifies the operation process, but also improves work efficiency. More importantly, since the rolling clamping wheel 42 can roll relative to the workpiece surface, this design can also significantly reduce friction damage on the workpiece surface, ensuring the quality of the final product.

[0084] like Figure 3 As shown, the rotation adjustment mechanism 5 includes a visual detection camera 51, a hollow stepper motor 52, a suction cup 53 and a slide cylinder 54. The camera end of the visual detection camera 51 is arranged in the casing 1 toward the conveying surface of the conveying mechanism 3, the slide cylinder 54 is arranged in the casing 1 along the longitudinal direction, the hollow stepper motor 52 is arranged at the working end of the slide cylinder 54, and the suction cup 53 is coaxially arranged at the bottom end of the central stepper motor output shaft.

[0085] The main task of the visual inspection camera 51 is to monitor the position of the plate in real time. The camera end is installed in the housing 1 facing the conveying surface of the conveying mechanism 3. This installation method ensures that the camera can accurately capture the position and angle of the plate. When the plate enters the inspection area, the camera can quickly identify and confirm whether the plate is in place. This detection accuracy is a key link to ensure the smooth progress of subsequent operations. Once it is detected that the plate has correctly arrived at the set position, the system can send a signal to trigger the subsequent steps.

[0086] Next, the slide cylinder 54 comes into play. The slide cylinder 54 is arranged in the housing 1 along the longitudinal direction, and it pushes the hollow stepper motor 52 to move longitudinally through precise control. This design ensures that the hollow stepper motor 52 can be lowered to the appropriate position at the right time, so that the grabbing and rotation of the plate are more accurate. The cooperation between the hollow stepper motor 52 and the slide cylinder 54 can effectively improve the flexibility and flexibility of the system, ensuring that plates of different sizes can be correctly positioned and rotated.

[0087] The hollow stepper motor 52 is the power core of the rotary adjustment mechanism 5, which is arranged at the working end of the slide cylinder 54. It can realize the coaxial connection of the suction cup 53 through the hollow shaft design. At the bottom end of the output shaft of the stepper motor, the suction cup 53 is coaxially installed, and the suction cup 53 grabs the plate by vacuum adsorption. The suction cup 53 can be tightly adsorbed on the center of the plate. The suction cup 53 can reduce the impact on the surface of the plate while ensuring a firm grip, thereby avoiding damage to the flatness and appearance of the surface of the plate.

[0088] When the visual inspection camera 51 confirms that the plate is in place, the suction cup 53 will drop under the action of the slide cylinder 54 and adsorb the center position of the plate. This precise positioning and adsorption ensures that the subsequent rotation action can be performed in the correct position. Then, the hollow stepper motor 52 is started to drive the plate to rotate 90 degrees. Through this rotation adjustment, the other pair of side edges of the plate will be in a suitable position, which is convenient for the grinding mechanism to perform grinding. During the grinding process, the accuracy of the rotation adjustment mechanism 5 ensures that each plate can be evenly polished, avoiding uneven grinding or workpiece quality problems caused by position deviation.

[0089] The method for removing rust and polishing the surface before high-precision sheet metal bending processing is applied to the equipment for removing rust and polishing the surface before high-precision sheet metal bending processing, and comprises the following steps:

[0090] Step 1: The plate is placed at the feeding end of the conveying mechanism 3, and the upper and lower surfaces of the plate are polished by the double-sided polishing mechanism 2 when the plate passes through the double-sided polishing mechanism 2;

[0091] Step 2: the plate is sent to the first side plate grinding mechanism via the conveying mechanism 3, and the side plate grinding mechanism 4 grinds a pair of side edges of the plate;

[0092] Step 3: When the plate is sent to the rotating adjustment mechanism 5 via the conveying mechanism 3, the rotating adjustment mechanism 5 guides the plate to rotate ninety degrees on the conveying mechanism 3;

[0093] Step 4: the rotated plate is sent to the second side grinding mechanism 4 via the conveying mechanism 3 . The second side grinding mechanism 4 grinds the other pair of side edges of the plate. The polished plate is sent out of the housing 1 via the conveying mechanism 3 .

[0094] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A high-precision sheet metal part bending processing front surface rust removal and grinding equipment, comprising a housing (1), and a double-sided grinding mechanism (2) and a conveying mechanism (3) arranged in the housing (1), wherein the double-sided grinding mechanism (2) has a grinding opening through which a sheet can pass horizontally, and the conveying mechanism (3) has a double-sided grinding clamping and conveying structure located at the feeding side and the discharging side of the grinding opening, characterized in that: The grinding device also includes two side grinding mechanisms (4) arranged in the housing (1) and arranged along the conveying direction of the conveying mechanism (3), and a rotating adjustment mechanism (5) arranged between the two side grinding mechanisms (4). The side grinding mechanism (4) includes two side grinding heads (41) arranged along the width direction of the conveying mechanism (3), and a rolling clamping wheel (42) close to the side grinding heads (41) and capable of elastically clamping the edge of the plate. The rolling clamping wheel (42) has a clamping port that can elastically clamp the edge of the plate. The conveying mechanism (3) also has a side grinding clamping conveying structure located at the feeding side and the discharging side of the clamping port. After the long side of the plate is polished by one of the side grinding heads (41), the plate is rotated ninety degrees on the conveying mechanism (3) by the rotating adjustment mechanism (5), and then the short side of the plate is polished by the other side grinding head (41).

2. The high-precision sheet metal part bending pre-surface rust removal and polishing equipment according to claim 1 is characterized in that: The side grinding mechanism (4) further comprises a spacing adjustment component arranged at the bottom of the conveying mechanism (3), and a grinding drive component arranged on the spacing adjustment component, wherein the spacing adjustment component comprises a long bracket (431), two mounting seats (432), a bidirectional screw rod (433) and a spacing adjustment motor (434). The long bracket (431) is arranged at the bottom of the conveying mechanism (3), and the long bracket (431) extends along the width direction of the conveying mechanism (3); The bidirectional screw rod (433) is rotatably arranged in the long bracket (431) along the length direction of the support; Two mounting seats (432) are arranged in the long bracket (431) in a sliding manner toward or away from each other along the length direction of the long bracket (431), and the side grinding head (41) is rotatably arranged in the mounting seats (432), and the rotation axis of the side grinding head (41) extends in the vertical direction; Two ends of the bidirectional screw rod (433) respectively penetrate through the two mounting seats (432) and are threadedly connected thereto; The spacing adjustment motor (434) is arranged at one end of the long bracket (431), and the output shaft of the spacing adjustment motor (434) is transmission-connected to the bidirectional screw rod (433); The grinding drive assembly is arranged on the long bracket (431) and is drivingly connected to the side grinding head (41).

3. The high-precision sheet metal part bending pre-surface rust removal and polishing equipment according to claim 2 is characterized in that: The grinding drive assembly comprises a driving shaft (441), a transmission shaft (442), a driven shaft (443) and a grinding drive motor (444); the driving shaft (441) is rotatably arranged in a long bracket (431); the transmission shaft (442) and the driven shaft (443) are both rotatably arranged on a mounting seat (432); the driving shaft (441), the transmission shaft (442) and the driven shaft (443) are sequentially connected in transmission; the grinding drive motor (444) is arranged at one end of the long bracket (431); the output shaft of the grinding drive motor (444) is connected in transmission to the driving shaft (441); and the driven shaft (443) is connected in transmission to the side grinding head (41).

4. The high-precision sheet metal part bending processing front surface rust removal and polishing equipment according to claim 3 is characterized in that: A driving shaft (435) extending in the longitudinal direction is also arranged in the mounting seat (432), and the side grinding head (41) is coaxially arranged on the driving shaft (435). A driven bevel gear (436) is arranged at one end of the driving shaft (435), and a driving bevel gear is arranged at one end of the driven shaft (443), and the driving bevel gear and the driven bevel gear (436) are meshed with each other.

5. The high-precision sheet metal part bending pre-surface rust removal and polishing equipment according to claim 3 or 4, characterized in that: The side grinding head (41) is slidably connected to the drive shaft (435), and a reciprocating lifting connector is also provided in the mounting seat (432). The reciprocating lifting connector is transmission-connected to the side grinding head (41) and the drive shaft (442). When the drive shaft (442) rotates, the side grinding head (41) is lifted and lowered reciprocatingly in the longitudinal direction.

6. The high-precision sheet metal part bending pre-surface rust removal and polishing equipment according to claim 5 is characterized in that: The reciprocating lifting connector comprises a sliding seat (451) arranged in a mounting seat (432) and capable of sliding in the longitudinal direction, and a guide plate (452) coaxially arranged at one end of a transmission shaft (442); the driving shaft (435) slides through the sliding seat (451); the side grinding head (41) is located in the sliding seat (451); a guide groove (4511) extending in the transverse direction is arranged on one side of the sliding seat (451); a guide column (4521) deviating from its axis is arranged at one end of the guide plate (452); the guide column (4521) extends into the guide groove (4511) and slides with it.

7. The high-precision sheet metal part bending processing front surface rust removal and polishing equipment according to any one of claims 3-4 and 6, characterized in that: A rotating sleeve (438) coaxial with the driving shaft (441) is provided on the mounting seat (432); the rotating sleeve (438) and the mounting seat (432) are rotationally connected; the rotating seat and the transmission shaft (442) are transmission-connected via a synchronous belt (439); the rotating sleeve (438) and the driving shaft (441) are engaged and slidably connected; after the two mounting seats (432) move toward each other, the rotating sleeve (438) can input torque to the transmission shaft (442) via the synchronous belt (439).

8. The high-precision sheet metal part bending processing front surface rust removal and grinding equipment according to any one of claims 2-4 and 6, characterized in that: Two parallelogram connecting rods (46) forming an angle are arranged on both sides of the mounting seat (432) in the longitudinal direction. A connecting seat (47) is arranged on the outer side of the parallelogram connecting rod (46). The rolling clamping wheel (42) is rotatably arranged on the inner side of the connecting seat (47). A tension spring (48) is also arranged between the two parallelogram connecting rods (46) on the same side of the mounting seat (432). In the initial state, the two rolling clamping wheels (42) are elastically abutted against each other.

9. The high-precision sheet metal part bending processing front surface rust removal and polishing equipment according to any one of claims 2-4 and 6, characterized in that: The rotation adjustment mechanism (5) comprises a visual detection camera (51), a hollow stepping motor (52), a suction cup (53) and a slide cylinder (54); the camera end of the visual detection camera (51) is arranged in the housing (1) toward the conveying surface of the conveying mechanism (3); the slide cylinder (54) is arranged in the housing (1) along the longitudinal direction; the hollow stepping motor (52) is arranged at the working end of the slide cylinder (54); and the suction cup (53) is coaxially arranged at the bottom end of the output shaft of the central stepping motor.

10. A method for removing rust and polishing the surface before high-precision sheet metal bending, characterized in that: The high-precision sheet metal part bending processing front surface rust removal and grinding equipment used in any one of claims 1-4 and 6 comprises the following steps: Step 1: The plate is placed at the feeding end of the conveying mechanism (3), and the upper and lower surfaces of the plate are polished by the double-sided polishing mechanism (2) when the plate passes through the double-sided polishing mechanism (2); Step 2: the plate is sent to the first side plate grinding mechanism via the conveying mechanism (3), and the side plate grinding mechanism (4) grinds a pair of side edges of the plate; Step 3: When the plate is sent to the rotating adjustment mechanism (5) via the conveying mechanism (3), the rotating adjustment mechanism (5) guides the plate to rotate ninety degrees on the conveying mechanism (3); Step 4: the rotated plate is sent to the second side grinding mechanism (4) via the conveying mechanism (3); the second side grinding mechanism (4) grinds the other pair of side edges of the plate; the polished plate is sent out of the housing (1) via the conveying mechanism (3).

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