A plug door guide slot broaching processing equipment

Abstract

This invention relates to the field of broaching for insert doors, and more specifically, to a broaching processing device for guide grooves of insert doors. The device includes a machine body and a fixed plate at one end. A support plate for placing the insert door is slidably mounted on the side wall of the fixed plate. Centering components for positioning the insert door are provided on both sides of the support plate. Each centering component includes at least two sets of positioning plates and two sets of fixed cylinders located at both ends of the side wall of the fixed plate. Each set has a broaching cutter inside its cavity, an opening on one side facing the support plate, and a guiding component for guiding debris and cooling water rotatably mounted on the side wall away from the support plate. A cleaning component for cleaning debris from the broaching cutter is located on the side of the guiding component near the broaching cutter. This invention, by symmetrically arranging two sets of fixed cylinders and broaching cutters at both ends of the fixed plate, allows the guide grooves on both sides of the insert door to be broached simultaneously. The positioning plates rotate upwards first, pushing the insert door from both sides towards the center to achieve automatic centering and clamping.

Description

Technical Field

[0001] This invention relates to the field of broaching for insert doors, and more specifically, to a broaching machine for guide grooves in insert doors. Background Technology

[0002] Slide gates are widely used in pipeline systems such as boiler hot and cold air ducts, flue gas desulfurization, and fly ash conveying in thermal power plants. They are used to vertically cut off the flow of media and are characterized by flexible opening and closing, tight sealing, and adaptability to high temperature and high air pressure conditions. They can operate reliably in horizontal, vertical, or inclined pipelines. The core function of the guide groove in the slide gate is to provide limiting guidance for the reciprocating motion of the slide, avoiding problems such as jamming, offset, and misalignment of the sealing surface during the opening and closing of the slide. At the same time, high temperature resistant sealing filler can be integrated into the groove to improve the zero-leakage isolation performance of the gate and reduce wear during the operation of the slide, thus extending the overall service life of the equipment. Currently, the mainstream method in the industry to complete the guide groove processing by broaching is to use a special broaching machine. The slide workpiece is firmly fixed on the worktable with a special fixture. A multi-tooth guide groove broach that is perfectly matched with the cross-sectional shape of the guide groove is selected. The cutting amount of each layer of teeth on the broach increases progressively. The broach is driven by a hydraulic or servo drive system to make linear cutting motion along a preset guide rail. The entire contour cutting of the guide groove can be completed in one pass.

[0003] Existing broaching equipment for slide door guide grooves typically employs a single-sided broaching method, meaning the guide groove is broached only from one side of the slide door. Because the cutting force is concentrated on one side of the slide door during broaching, the force is unevenly distributed, easily leading to skewing or vibration, which in turn affects the machining accuracy and surface quality of the guide groove. It also exacerbates the problem of one-sided wear on the broaching tool. Regarding the positioning of the slide door, existing equipment has poor centering capability, lacking an effective automatic centering mechanism after the slide door is placed on the support plate. Traditionally, broaching relies on manual adjustments by operators based on experience, resulting in low positioning accuracy and poor consistency. Misalignment of the broaching tool and the machining position due to the offset of the broaching gate can easily lead to tool damage or workpiece scrap. Furthermore, after broaching, existing equipment typically requires manual cleaning of metal shavings adhering to the broaching tool teeth. This process is not only cumbersome and inefficient but also poses safety hazards and makes it difficult to guarantee the cleaning effect. Residual shavings can affect the smooth progress and quality of subsequent machining. To address these issues, a broaching machine for the broaching groove of the broaching gate is proposed. Summary of the Invention

[0004] (a) Technical problems to be solved: To address the problems existing in the prior art, this invention provides a broaching processing equipment for guide grooves of insert doors, which solves the problems mentioned in the background art. Due to the concentrated cutting force acting on one side of the insert door during broaching, the insert door is subjected to uneven force during processing, which easily causes skewing or vibration, low positioning accuracy and poor consistency. It is also easy for the broaching tool to misalign with the processing position due to the offset of the insert door, resulting in tool damage or workpiece scrap. The metal shavings attached to the broaching tool teeth usually rely on manual cleaning by workers, which is not only cumbersome and inefficient, but also poses safety hazards during the cleaning process.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a broaching machine for guide grooves in insert doors, comprising: The machine body and a fixed plate at one end thereof, wherein a support plate for placing a door insert is slidably provided on the side wall of the fixed plate, and a centering component for positioning the door insert is provided on both sides of the support plate, the centering component including at least two sets of positioning plates; Two sets of fixed cylinders are located at both ends of the side wall of the fixed plate. The inner cavity of the cylinder is equipped with a broaching blade. One side of the cylinder has an opening facing the support plate. The side wall away from the support plate is rotatably equipped with a guide assembly for guiding debris and cooling water. The guide assembly is equipped with a cleaning assembly for cleaning debris from the broaching blade on the side near the broaching blade. The lower end of the side wall of the fixed cylinder is rotatably equipped with a scraping assembly for cleaning debris from the cleaning assembly. During the upward movement of the support plate, the positioning plate rotates to center the insertion plate door, and the guide component and cleaning component flip up to clean the broaching blade. When the positioning plate rotates down, it makes way for the broaching space of the insertion plate door, and drives the guide component and cleaning component to flip down, and the cleaning component is cleaned by the scraping component.

[0006] The invention is further configured such that a collection groove is provided on the lower side of the machine body near the broaching tool, a guide frame is fixedly connected to the middle of the side wall of the fixed plate, one end of the bearing plate is slidably disposed in the guide frame by a slider, a telescopic cylinder is provided on the top of the guide frame, and the driving end of the telescopic cylinder is fixedly connected to the bearing plate.

[0007] The present invention is further configured such that mounting grooves are provided at both ends of the side wall of the bearing plate, and the positioning plate is rotatably mounted in the mounting groove via a connecting shaft, and the cross-sectional shape of the positioning plate is semi-arc.

[0008] The present invention is further configured such that a receiving frame is provided on both sides of the guide frame, and a rack is provided at the upper and lower ends of the inner cavity side walls of the receiving frame respectively. One end of the connecting shaft extends into the receiving frame and is fixedly connected to a gear, and the gear meshes with the rack.

[0009] The invention is further configured such that the upper rack is located on the left side of the gear, and the lower rack is located on the right side of the gear.

[0010] The present invention is further configured such that a mounting base is fixedly connected to the upper end of the side wall of the guide frame, and a clamping plate adapted to the bearing plate is provided on one side of the mounting base, and the clamping plate is used in conjunction with the bearing plate.

[0011] The present invention is further configured such that a connecting plate is provided at the end of the side wall of the fixed cylinder away from the bearing plate, the guiding component includes an arc-shaped plate, the arc-shaped plate is rotatably disposed on one side of the connecting plate, a first torsion spring is provided between the arc-shaped plate and the connecting plate, and the arc-shaped surface of the arc-shaped plate is disposed facing the opening direction of the fixed cylinder.

[0012] The present invention is further configured such that the cleaning component includes a cleaning brush, the cleaning brush is disposed at the end of the arc-shaped plate away from the connecting plate, one end of the cleaning brush is provided with an abutment head, and the side wall of the fixed cylinder is provided with a corrugated plate near the abutment head, the corrugated plate being abutted against the abutment head.

[0013] The present invention is further configured such that the scraping assembly includes a scraper, a support plate is fixedly connected to the lower end of the side wall of the fixed cylinder, a rotating rod is rotatably connected to the inner cavity of the support plate, a second torsion spring is provided between the rotating rod and the support plate, extension plates are fixedly connected to both ends of the rotating rod, the scraper is fixedly connected between the two sets of extension plates, and the scraper is set at an inclination angle of 30° to 60° with the axis of the fixed cylinder.

[0014] The present invention is further configured such that one end of the scraper is in arc-shaped contact with the inner wall of the arc plate, the radius of curvature of the arc-shaped contact surface of the scraper is adapted to the radius of curvature of the inner wall of the arc plate, and the thickness of the scraper gradually decreases along the direction away from the rotating rod.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a broaching processing equipment for guide grooves of insert gates, which has the following beneficial effects: 1. This invention, by symmetrically arranging two sets of fixed cylinders and broaching cutters at both ends of the fixed plate, enables the guide grooves on both sides of the insert door to be broached simultaneously. The cutting force is evenly distributed on both sides of the insert door, avoiding uneven force and skewed vibration caused by unilateral broaching, thus improving machining accuracy and surface quality. At the same time, it reduces unilateral wear of the broaching cutter. In terms of centering positioning, when the bearing plate moves up, the gear on the connecting shaft meshes with the upper and lower sets of racks in sequence. Utilizing the layout of the racks on the left and right sides of the gear, the positioning plate first rotates upward to push the insert door from both sides towards the middle to achieve automatic centering and clamping. After continuing to move upward, the positioning plate rotates downward to make room. The entire process requires no manual intervention, has high positioning accuracy, and effectively avoids tool damage or workpiece scrap caused by insert door misalignment.

[0016] 2. This invention achieves synchronous linkage between the guiding component and the cleaning component by directly pushing the arc-shaped plate when the positioning plate flips. When the cleaning brush flips with the arc-shaped plate and passes over the broaching cutter teeth, the end contact head periodically contacts the corrugated plate, causing the cleaning brush to vibrate and enhancing the ability to remove debris from the gaps between the cutter teeth. When the cleaning brush flips down and passes over the scraper, the scraper automatically scrapes off the debris attached to the surface of the cleaning brush. At the same time, the arc-shaped end of the scraper adheres to the inner wall of the arc-shaped plate to achieve synchronous cleaning of the guide surface, eliminating the safety hazards of manual cleaning, ensuring the cleanliness of the broaching cutter teeth before each processing, and improving processing quality and tool life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the broaching equipment for the guide groove of the insert door.

[0018] Figure 2 This is a side view of the broaching equipment for the guide groove of the insert door.

[0019] Figure 3 This is a schematic diagram of the clamping plate structure of a broaching machine for insert door guide grooves.

[0020] Figure 4 This is a schematic diagram of the central component structure of a broaching machine for insert gate guide grooves.

[0021] Figure 5 This is a schematic diagram of the guide component structure of a broaching machine for insert door guide grooves.

[0022] Figure 6 This is a schematic diagram of the cleaning component structure of a broaching machine for insert door guide grooves.

[0023] Figure 7 A schematic diagram showing the working state of the centering component of the broaching machine for the guide groove of the insert door.

[0024] Figure 8 broaching equipment for guide groove of insert door Figure 2 Enlarged diagram of point A in the middle.

[0025] Figure 9 broaching equipment for guide groove of insert door Figure 4 Enlarged diagram of point B in the middle.

[0026] Figure 10 broaching equipment for guide groove of insert door Figure 6 Enlarged diagram of point C in the middle.

[0027] In the diagram: 100, Body; 110, Drive unit; 120, Connecting unit; 130, Collection trough; 200, Fixing plate; 210, Guide frame; 220, Bearing plate; 221, Mounting groove; 222, Positioning plate; 223, Telescopic cylinder; 224, Connecting shaft; 225, Gear; 230, Mounting base; 231, Clamping plate; 240, Receiving frame; 241, Rack; 250, Fixing cylinder; 251, Broaching tool; 252, Corrugated plate; 260, Connecting plate; 261, Arc plate; 262, First torsion spring; 263, Cleaning brush; 264, Contact head; 270, Support plate; 271, Rotating rod; 272, Second torsion spring; 273, Extension plate; 274, Scraper. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0031] Please see Figure 1 - Figure 10 A broaching machine for guide grooves of insert doors, comprising: In this application, the body 100 and the fixing plate 200 located at one end of the body are provided. The side wall of the fixing plate 200 is slidably provided with a support plate 220 for placing the insert door. The support plate 220 is provided with a centering component for positioning the insert door on both sides. The centering component includes at least two sets of positioning plates 222. Two sets of fixed cylinders 250 are located at both ends of the side wall of the fixed plate 200. The inner cavity of each cylinder is provided with a broaching blade 251. One side of each cylinder has an opening facing the support plate 220. The side wall of the cylinder 250 away from the support plate 220 is rotatably provided with a guide assembly for guiding debris and cooling water. The guide assembly is provided with a cleaning assembly for cleaning debris from the broaching blade 251 on the side near the broaching blade 251. The lower end of the side wall of the fixed cylinder 250 is rotatably provided with a scraping assembly for cleaning debris from the cleaning assembly. The machine body 100 is provided with a connecting part 120 for fixing the broaching blade 251, and the connecting part 120 and the broaching blade 251 are driven to move horizontally by the driving part 110. During the upward movement of the bearing plate 220, the positioning plate 222 rotates upward to center and position the insert door, and the guide component and cleaning component flip upward to clean the broaching blade 251. When the positioning plate 222 rotates downward, it makes way for the broaching space of the insert door, and drives the guide component and cleaning component to flip downward, and the cleaning component is cleaned by scraping component.

[0032] In this application, the body 100 can be made of cast iron, welded steel structure or other materials with sufficient rigidity and stability. The fixing plate 200 can be fixedly installed at one end of the body 100. The fixing plate 200 can be fixedly connected to the body 100 by means of bolt connection, welding or integral molding. The fixing plate 200 can provide a stable mounting reference surface for broaching. The bearing plate 220 can be used to support the insert door workpiece to be processed. It can slide up and down along the side wall of the fixing plate 200 to send the insert door into the processing area of ​​the broaching cutter 251. The sliding direction of the bearing plate 220 can be perpendicular to the broaching direction of the broaching cutter 251, used to transport the insert door to the broaching cutter 251 and clamp and fix the insert door.

[0033] The centering component can be used to center the insert door laterally before it is fed into the processing area, ensuring that the processing position of the guide groove of the insert door is aligned with the broaching tool 251, and avoiding a decrease in processing accuracy or damage to the tool due to the offset of the insert door. The centering component can include at least two sets of positioning plates 222, which can be respectively set on both sides of the support plate 220. Through the coordinated movement of the two positioning plates 222, the insert door is pushed from both sides to the middle to achieve centering of the insert door.

[0034] The fixed cylinder 250 can serve as the mounting carrier and guide structure for the broaching tool 251. The two sets of fixed cylinders 250 can respectively correspond to the processing positions of the guide grooves on both sides of the insert door, so as to balance the broaching force. The inner cavity of the fixed cylinder 250 can be equipped with the broaching tool 251, which can be used to broach the guide grooves of the insert door. The broaching tool 251 can include multiple sequentially arranged cutting teeth, and the cutting depth of each cutting tooth can gradually increase. This is existing technology and will not be described in detail. One side of the fixed cylinder 250 can be provided with an opening facing the support plate 220. This opening can be used to expose the cutting part of the broaching tool 251 so as to contact and cut the insert door on the support plate 220.

[0035] The guide assembly can be used to temporarily store and guide the metal chips and coolant generated during broaching, and prevent chips and coolant from splashing, avoiding chip accumulation near the broaching tool 251 that may affect machining quality or cause accelerated tool wear. The rotation setting of the guide assembly allows it to switch positions in different working states.

[0036] The cleaning component can be used to remove metal debris adhering to the broach teeth of the broach cutter 251, preventing the debris from clogging the gap between the teeth and affecting the smooth progress of broaching and the surface quality of the machined surface. While the guide component rotates, it drives the cleaning component to clean the broach cutter 251.

[0037] The scraping component can be used to scrape off the debris attached to the cleaning component after the cleaning component has finished cleaning the broaching tool 251, so as to prevent the debris from accumulating too much on the cleaning component and affecting the cleaning effect or causing secondary pollution. The tilting and rotating setting of the scraping component can make it contact the cleaning component and scrape off the debris when the cleaning component passes by.

[0038] During its upward movement, the support plate 220 can rotate the positioning plate 222 to center and position the broaching door, and simultaneously guide the guide component and cleaning component to flip up to clean the broaching tool 251. When the support plate 220 moves upward, the positioning plate 222 can rotate upward and move from both sides of the support plate 220 towards the center to clamp and position the broaching door in the center, ensuring that the broaching door is positioned before entering the broaching area. At the same time, the upward movement of the support plate 220 can drive the guide component and cleaning component to flip up through the linkage mechanism, so that the cleaning component can clean the broaching tool 251, remove the debris left on the cutting teeth from the previous processing, and prepare for the next broaching process.

[0039] As the support plate 220 continues to move upward, the positioning plate 222 can rotate downward and unfold outward from both sides of the insertion plate door, providing sufficient space for the broaching process of the insertion plate door and preventing the positioning plate 222 from interfering with the broaching tool 251 or the insertion plate door during processing. At the same time, the guide component and the cleaning component can flip down. During the flipping process, the cleaning component can pass through the position of the scraping component. The scraping component can scrape off the debris attached to the cleaning component, realizing the self-cleaning of the cleaning component. This allows the centering component to synchronously flip the guide component and the cleaning component during the centering action.

[0040] In some examples of this application, a collection groove 130 is provided on the lower side of the body 100 near the broach 251, a guide frame 210 is fixedly connected to the middle of the side wall of the fixed plate 200, one end of the support plate 220 is slidably disposed in the guide frame 210 by a slider, a telescopic cylinder 223 is provided on the top of the guide frame 210, and the driving end of the telescopic cylinder 223 is fixedly connected to the support plate 220.

[0041] As a preferred example of the present invention, the collection tank 130 can be used to collect metal shavings and coolant generated during the broaching process, preventing the shavings and coolant from scattering around the machine body 100, keeping the working environment clean, and facilitating the centralized recycling of shavings and the recycling of coolant. The collection tank 130 can be set directly below the guide component, so that the shavings and coolant falling from the guide component can fall naturally into the collection tank 130 under the action of gravity. The guide frame 210 can guide the sliding movement of the support plate 220, ensuring that the support plate 220 will not deviate or shake during the up and down movement, thereby ensuring the positional accuracy of the insert door during the broaching process. The guide frame 210 can be fixedly connected to the middle of the side wall of the fixed plate 200 by bolts, welding or riveting. The guide frame 210 can be U-shaped, rectangular or other shapes suitable for accommodating the sliding of the support plate 220. The inner wall of the guide frame 210 can be provided with wear-resistant bushings or guide rails to reduce the friction when the support plate 220 slides and extend its service life. The support plate 220 can slide smoothly along the length of the guide frame 210. The slider can be a linear guide slider, a dovetail slider or other sliding fit structure to ensure the smoothness and accuracy of the movement of the support plate 220. The telescopic cylinder 223 provides driving force for the up-and-down movement of the support plate 220. The telescopic cylinder 223 can be in the form of a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. The appropriate type can be selected according to the processing force and speed requirements. The drive end of the telescopic cylinder 223 can be fixedly connected to the support plate 220. When the drive end of the telescopic cylinder 223 extends or retracts, it can drive the support plate 220 to move up and down along the guide frame 210, thereby realizing the feeding and unloading actions of the slide gate.

[0042] In some examples of this application, mounting grooves 221 are provided at both ends of the side wall of the bearing plate 220, and the positioning plate 222 is rotatably disposed in the mounting groove 221 via the connecting shaft 224. The cross-sectional shape of the positioning plate 222 is semi-arc.

[0043] As a preferred example of the present invention, the mounting groove 221 can be used to accommodate the positioning plate 222. When the positioning plate 222 is in a downward rotating state, the positioning plate 222 can be retracted below the mounting groove 221 to prevent the positioning plate 222 from protruding from the surface of the support plate 220 and affecting the placement or broaching of the insert door.

[0044] The connecting shaft 224 can serve as the rotation axis of the positioning plate 222. The positioning plate 222 can rotate around the connecting shaft 224 to achieve the switching between upward rotation for centering and downward rotation for clearance. The connecting shaft 224 can be connected to the side wall of the mounting groove 221 through a bearing or bushing to reduce rotational friction and ensure that the positioning plate 222 rotates flexibly. The semi-circular cross-sectional shape of the positioning plate 222 allows it to provide surface or line contact positioning when it contacts the side wall of the door. Compared to planar contact, the semi-circular contact can better adapt to the slight unevenness of the side wall of the door, improving the stability and adaptability of positioning. At the same time, the semi-circular shape allows the contact point between the positioning plate 222 and the door to gradually change during the upward rotation, generating a component force that pushes towards the center, which helps to achieve the centering effect of the door. In some examples of this application, the guide frame 210 is provided with a receiving frame 240 on both sides, and the inner cavity of the receiving frame 240 is provided with a rack 241 at the upper and lower ends of the two side walls respectively. One end of the connecting shaft 224 extends into the receiving frame 240 and is fixedly connected with a gear 225, which meshes with the rack 241.

[0045] As a preferred example of the present invention, the receiving frame 240 can be used to receive the gear 225 and the rack 241. The rack 241 can be used as a transmission element to drive the rotation of the positioning plate 222. When the support plate 220 moves up and down, the connecting shaft 224 moves together with the support plate 220. The gear 225 on the connecting shaft 224 meshes with the rack 241. Since the rack 241 is fixed, the gear 225 will rotate due to meshing with the rack 241 during the movement with the support plate 220, thereby driving the connecting shaft 224 and the positioning plate 222 to rotate. The gear 225 can be fixedly sleeved on the end of the connecting shaft 224 and rotate synchronously with the connecting shaft 224. The gear 225 can be meshed with the rack 241.

[0046] In some examples of this application, the upper rack 241 is located to the left of the gear 225, and the lower rack 241 is located to the right of the gear 225.

[0047] As a preferred example of the present invention, the positioning plate 222 rotates in different directions during the upward movement of the support plate 220. Specifically, when the support plate 220 moves upward, the gear 225 moves upward along with the connecting shaft 224. The gear 225 meshes with the lower rack 241. Since the lower rack 241 is located to the right of the gear 225, the gear 225 rotates clockwise during the upward movement, driving the positioning plate 222 to rotate upward and achieve the centering positioning function. When the support plate 220 continues to move upward, the gear 225 meshes with the upper rack 241. Since the upper rack 241 is located to the left of the gear 225, the gear 225 rotates in the opposite direction during the continuous upward movement, driving the positioning plate 222 to rotate downward and achieve the yielding function. During the upward / downward rotation, the free end of the positioning plate 222 away from the connecting shaft 224 forms a contact engagement with the side of the arc plate 261, and is driven by direct pushing.

[0048] In some examples of this application, a mounting base 230 is fixedly connected to the upper side wall of the guide frame 210, and a clamping plate 231 adapted to the support plate 220 is provided on one side of the mounting base 230. The clamping plate 231 is used in conjunction with the support plate 220.

[0049] As a preferred example of the present invention, the mounting base 230 can be used to install the clamping plate 231. It can be set on the upper side wall of the guide frame 210, located above the travel of the bearing plate 220. The mounting base 230 can be fixedly connected to the guide frame 210 by means of bolts, welding or integral molding, etc. The mounting base 230 can provide a stable mounting foundation for the clamping plate 231.

[0050] The clamping plate 231 can be used in conjunction with the support plate 220 to clamp the insert door. When the support plate 220 moves up to the processing position, the clamping plate 231 can cooperate with the support plate 220 from above to clamp and fix the insert door between the support plate 220 and the clamping plate 231, preventing the insert door from shifting or vibrating due to the cutting force during broaching, thus ensuring processing accuracy and safety.

[0051] In some examples of this application, a connecting plate 260 is provided at the end of the side wall of the fixed cylinder 250 away from the bearing plate 220, and the guide assembly includes an arc plate 261. The arc plate 261 is rotatably disposed on one side of the connecting plate 260, and a first torsion spring 262 is provided between the arc plate 261 and the connecting plate 260. The arc surface of the arc plate 261 is disposed facing the opening direction of the fixed cylinder 250.

[0052] As a preferred example of the present invention, the connecting plate 260 can serve as the mounting base for the guide assembly. It can be fixedly installed at the end of the fixed cylinder 250 to provide a support point for the rotation of the guide assembly. The connecting plate 260 can be fixedly connected to the fixed cylinder 250 by means of bolts, welding or integral molding.

[0053] The arc plate 261 can be rotatably mounted on one side of the connecting plate 260. The arc plate 261 can rotate around its connection point with the connecting plate 260 to switch between flipping up and flipping down. The arc shape of the arc plate 261 can form an arc-shaped guide surface when it is unfolded, guiding debris and coolant along the arc surface to the direction of the collection tank 130, thus preventing debris and coolant from splashing to other parts of the equipment. The first torsion spring 262 can provide a restoring force for the arc plate 261. When the arc plate 261 is driven to flip upward by an external force, the first torsion spring 262 can store elastic potential energy. When the external force is removed, the first torsion spring 262 can release the elastic potential energy and drive the arc plate 261 to automatically return to the initial position of the flipped-down position. The stiffness of the first torsion spring 262 can be designed according to the weight of the arc plate 261 and the required restoring force to ensure that the arc plate 261 can reliably return to the initial position, while not affecting the smooth progress of the flipping action due to excessive elastic force.

[0054] The curved surface of the arc-shaped plate 261 can be oriented towards the opening of the fixed cylinder 250, so that when the arc-shaped plate 261 is in the unfolded state, its curved surface is directly facing the opening of the fixed cylinder 250, effectively catching debris and coolant flying out from the opening and guiding them in a designated direction. The curvature of the curved surface can be optimized according to the size of the opening of the fixed cylinder 250 and the angle at which debris flies out, to obtain the best guiding effect.

[0055] In some examples of this application, the cleaning component includes a cleaning brush 263, which is disposed at the end of the arc plate 261 away from the connecting plate 260. One end of the cleaning brush 263 is provided with an abutment head 264. A corrugated plate 252 is provided on the side wall of the fixed cylinder 250 near the abutment head 264, and the corrugated plate 252 is abutting against the abutment head 264.

[0056] As a preferred example of the present invention, the cleaning brush 263 can be set at the end of the arc plate 261 away from the connecting plate 260, that is, the free end of the arc plate 261. The cleaning brush 263 can be made of wire brush, nylon brush or other bristle material suitable for cleaning metal debris. The hardness and density of the bristles can be selected according to the spacing of the broaching cutter 251 teeth and the degree of adhesion of the debris. The cleaning brush 263 can rotate with the arc plate 261. When the arc plate 261 is flipped up, the cleaning brush 263 can contact the surface of the broaching cutter 251 teeth and brush off the debris attached to the teeth.

[0057] The contact head 264 can be located at the end of the cleaning brush 263. The contact head 264 can be made of wear-resistant silicone material to withstand the wear when repeatedly contacting the corrugated plate 252. The shape of the contact head 264 can be spherical, cylindrical or other shapes suitable for matching the corrugated plate 252.

[0058] The corrugated plate 252 can be fixedly installed on the side wall of the fixed cylinder 250. Its surface is wavy and undulating. The corrugated plate 252 and the contact head 264 can be abutted together, so that when the guide assembly is flipped down or up, the contact head 264 can repeatedly contact the crests and troughs of the corrugated plate 252.

[0059] Specifically, when the curved plate 261 flips up or down, the cleaning brush 263 moves along with the curved plate 261. During the movement, the contact head 264 passes through the crests and troughs of the corrugated plate 252 in sequence. Due to the undulating shape of the corrugated plate 252, the contact head 264 is subjected to periodic thrust changes. These thrust changes are transmitted to the cleaning brush 263, causing the cleaning brush 263 to vibrate, which can enhance the cleaning effect of the cleaning brush 263 on the debris on the broaching blade 251 teeth.

[0060] In some examples of this application, the scraping assembly includes a scraper 274, a support plate 270 fixedly connected to the lower end of the side wall of the fixed cylinder 250, a rotating rod 271 rotatably connected to the inner cavity of the support plate 270, a second torsion spring 272 provided between the rotating rod 271 and the support plate 270, extension plates 273 fixedly connected to both ends of the rotating rod 271, the scraper 274 fixedly connected between the two sets of extension plates 273, the scraper 274 is set at an inclination angle of 30° to 60° with the axis of the fixed cylinder 250, and the arc plate 261 can be flipped down to make the scraper 274 contact the cleaning brush 263.

[0061] As a preferred example of the present invention, the scraper 274 can be used to scrape off the debris attached to the cleaning brush 263, preventing the debris from accumulating too much on the cleaning brush 263 and affecting the subsequent cleaning effect. The scraper 274 can be made of wear-resistant materials, such as hard alloy, hardened steel or ceramic, to ensure that it maintains a good scraping effect and a long service life during repeated scraping of debris. The scraper 274 can have gaps to improve the cleaning effect on the brush. The support plate 270 can serve as the mounting base for the scraping assembly. It can be fixedly installed at the lower end of the side wall of the fixed cylinder 250, in the area through which the cleaning brush 263 moves downward. The support plate 270 can be fixedly connected to the fixed cylinder 250 by means of bolts, welding, or integral molding.

[0062] The rotating rod 271 can rotate around its own axis in the inner cavity of the support plate 270. The rotation of the rotating rod 271 can drive the scraper 274 to adjust its angle. The rotating rod 271 can be connected to the support plate 270 through a bearing or bushing to ensure flexible rotation.

[0063] The second torsion spring 272 provides a restoring torque for the rotating rod 271. When the scraper 274 is deflected by the thrust of the cleaning brush 263, the second torsion spring 272 stores elastic potential energy. When the cleaning brush 263 leaves, the second torsion spring 272 drives the rotating rod 271 back to its initial position, allowing the scraper 274 to return to its standby state. The stiffness of the second torsion spring 272 can be designed according to the contact force between the scraper 274 and the cleaning brush 263 and the required scraping effect.

[0064] The extension plate 273 can extend outward from both ends of the rotating rod 271 to provide an installation position for the scraper 274. The extension plate 273 can extend in the radial direction of the rotating rod 271, and its length can be designed according to the width that the scraper 274 needs to cover.

[0065] The scraper 274 can be fixedly connected between the two sets of extension plates 273. The scraper 274 spans between the two sets of extension plates 273 and can rotate together with the rotating rod 271. The width of the scraper 274 can cover the width range of the cleaning brush 263, ensuring that when the cleaning brush 263 passes by, the scraper 274 can scrape off the debris in its entire width range.

[0066] The scraper 274 and the axis of the fixed cylinder 250 can be set at an angle of 30° to 60°, so that when the scraper 274 contacts the cleaning brush 263, it forms an appropriate scraping angle, which can effectively scrape the debris from the cleaning brush 263 without causing excessive resistance or damage to the cleaning brush 263 due to an excessive angle.

[0067] In some examples of this application, one end of the scraper 274 is in arc-shaped contact with the inner wall of the arc plate 261, the radius of curvature of the arc-shaped contact surface of the scraper 274 is adapted to the radius of curvature of the inner wall of the arc plate 261, and the thickness of the scraper 274 gradually decreases in the direction away from the rotating rod 271.

[0068] As a preferred example of the present invention, the scraper 274 can clean the inner wall of the arc plate 261 while scraping off the debris on the cleaning brush 263, removing the debris and coolant residue attached to the inner wall of the arc plate 261, keeping the guide surface of the arc plate 261 clean, and ensuring that its guide effect is not affected by the accumulation of debris.

[0069] The matching of the radius of curvature ensures that the scraper 274 and the inner wall of the arc plate 261 form a good surface contact, rather than a point contact or a line contact, thereby improving the uniformity and thoroughness of scraping.

[0070] The thickness of the scraper 274 can gradually decrease in the direction away from the rotating rod 271, so that the distal end of the scraper 274 has better flexibility and adaptability, and can better fit the inner wall surface of the arc plate 261. At the same time, it reduces the weight of the distal end of the scraper 274 and reduces the load on the rotating rod 271 and the second torsion spring 272. In addition, the gradually thinning structure can also cause the distal end of the scraper 274 to produce a small elastic deformation when it contacts the inner wall of the arc plate 261, further enhancing the fit and improving the thoroughness of scraping.

[0071] In practical use, the operator places the insert door to be processed on the support plate 220. The drive end of the telescopic cylinder 223 extends, causing the support plate 220 to slide upward along the guide frame 210. During the upward movement of the support plate 220, the connecting shaft 224 moves upward synchronously with the support plate 220. The gear 225 at the end of the connecting shaft 224 meshes with the rack 241 at the lower end of the receiving frame 240. Since the lower rack 241 is located to the right of the gear 225, the gear 225 rotates during the upward movement, causing the connecting shaft 224 and the positioning plate 222 to rotate upward. Positioning plates 222 move from both sides of the support plate 220 toward the center, clamping and positioning the insert door in the center. As the support plate 220 continues to move upward to the processing position, clamping plates 231 cooperate with the support plate 220 to clamp and fix the insert door. At the same time, the upward movement of the support plate 220 drives the arc plate 261 to flip upward around the connecting plate 260 through the positioning plate 222. The first torsion spring 262 is compressed and stores elastic potential energy. When the arc plate 261 flips upward, the cleaning brush 263 at its free end moves accordingly and contacts the surface of the broaching blade 251. The contact head at the end of the cleaning brush 263... During its movement, the contact head 264 passes through the corrugated plate 252 on the side wall of the fixed cylinder 250. The contact head 264 passes sequentially through the crests and troughs of the corrugated plate 252, causing the cleaning brush 263 to vibrate and remove debris remaining on the broaching cutter 251 teeth from the previous machining operation. At this time, the bearing plate 220 continues to move upwards, and the gear 225 meshes with the upper rack 241. Since the upper rack 241 is located to the left of the gear 225, the gear 225 rotates in the opposite direction during its movement, causing the positioning plate 222 to rotate downwards and retract into the mounting groove 221. At this time, the positioning plate 222... 22. The arc plate 261 is pushed down, and the cleaning brush 263 flips down with the arc plate 261, passing the position of the scraper 274. The scraper 274 contacts the cleaning brush 263 and scrapes off the debris attached to the cleaning brush 263. Then the drive unit 110 is started, which drives the connecting part 120 and the broaching cutter 251 to move in the horizontal direction. The cutting teeth of the broaching cutter 251 pass through the opening of the side wall of the fixed cylinder 250 to broach the guide groove of the insert door. The metal debris and coolant generated during the processing are guided to fall into the collection tank 130 along the arc surface of the arc plate 261.

[0072] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. In the above text, welding is preferred for any fixed connection. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A broaching machine for guide grooves of insert doors, characterized in that: include, The body (100) and the fixing plate (200) at one end thereof, the side wall of the fixing plate (200) is slidably provided with a support plate (220) for placing the insert door, the support plate (220) is provided with a centering component for positioning the insert door on both sides, the centering component includes at least two sets of positioning plates (222). Two sets of fixed cylinders (250) are provided at both ends of the side wall of the fixed plate (200). The inner cavity of the cylinder is provided with a broach (251). One side of the cylinder is provided with an opening facing the support plate (220). The side wall away from the support plate (220) is provided with a guide assembly for guiding debris and cooling water. The guide assembly is provided with a cleaning assembly for cleaning debris from the broach (251) on the side near the broach (251). The lower end of the side wall of the fixed cylinder (250) is provided with a scraping assembly for cleaning debris from the cleaning assembly. During the movement of the carrier plate (220), it can drive the positioning plate (222) to rotate upward to center the insertion door, and link the guide component and the cleaning component to flip up to clean the broaching knife (251). When the positioning plate (222) rotates downward, it makes room for the broaching of the insertion door, and drives the guide component and the cleaning component to flip down, and cleans the cleaning component by scraping the component.

2. The broaching equipment for guide grooves of insert doors according to claim 1, characterized in that: A collection groove (130) is provided on the lower side of the body (100) near the broaching tool (251). A guide frame (210) is fixedly connected to the middle of the side wall of the fixed plate (200). One end of the bearing plate (220) is slidably disposed in the guide frame (210) by a slider. A telescopic cylinder (223) is provided on the top of the guide frame (210). The driving end of the telescopic cylinder (223) is fixedly connected to the bearing plate (220).

3. The broaching equipment for guide grooves of insert doors according to claim 2, characterized in that: The support plate (220) has mounting grooves (221) at both ends of its sidewall. The positioning plate (222) is rotatably mounted in the mounting groove (221) via a connecting shaft (224). The cross-sectional shape of the positioning plate (222) is semi-arc.

4. The broaching equipment for guide grooves of insert doors according to claim 3, characterized in that: Both sides of the guide frame (210) are provided with receiving frames (240). The upper and lower ends of the inner cavity side walls of the receiving frame (240) are respectively provided with racks (241). One end of the connecting shaft (224) extends into the receiving frame (240) and is fixedly connected with a gear (225). The gear (225) meshes with the rack (241).

5. The broaching equipment for guide grooves of insert doors according to claim 4, characterized in that: The upper rack (241) is located to the left of the gear (225), and the lower rack (241) is located to the right of the gear (225).

6. The broaching equipment for guide grooves of insert doors according to claim 5, characterized in that: The upper side wall of the guide frame (210) is fixedly connected to a mounting base (230). A clamping plate (231) adapted to the bearing plate (220) is provided on one side of the mounting base (230). The clamping plate (231) is used in conjunction with the bearing plate (220).

7. The broaching equipment for guide grooves of insert doors according to claim 6, characterized in that: A connecting plate (260) is provided at one end of the side wall of the fixed cylinder (250) away from the bearing plate (220). The guide assembly includes an arc plate (261), which is rotatably disposed on one side of the connecting plate (260). A first torsion spring (262) is provided between the arc plate (261) and the connecting plate (260). The arc surface of the arc plate (261) is disposed facing the opening direction of the fixed cylinder (250).

8. The broaching equipment for guide grooves of insert doors according to claim 7, characterized in that: The cleaning assembly includes a cleaning brush (263), which is located at one end of the arc plate (261) away from the connecting plate (260). One end of the cleaning brush (263) is provided with an abutment head (264). A corrugated plate (252) is provided on the side wall of the fixed cylinder (250) near the abutment head (264), and the corrugated plate (252) abuts against the abutment head (264).

9. The broaching equipment for guide grooves of insert doors according to claim 8, characterized in that: The scraping assembly includes a scraper (274), a support plate (270) is fixedly connected to the lower end of the side wall of the fixed cylinder (250), a rotating rod (271) is rotatably connected to the inner cavity of the support plate (270), a second torsion spring (272) is provided between the rotating rod (271) and the support plate (270), extension plates (273) are fixedly connected to both ends of the rotating rod (271), the scraper (274) is fixedly connected between the two sets of extension plates (273), and the scraper (274) is set at an inclination angle of 30° to 60° with the axis of the fixed cylinder (250).

10. The broaching equipment for guide grooves of insert doors according to claim 9, characterized in that: One end of the scraper (274) is in arc-shaped contact with the inner wall of the arc plate (261). The radius of curvature of the arc-shaped contact surface of the scraper (274) is matched with the radius of curvature of the inner wall of the arc plate (261). The thickness of the scraper (274) gradually decreases in the direction away from the rotating rod (271).

Images