Grinding machine plate fixing device

Abstract

The application provides a grinding machine plate fixing device for fixing a plate on an electromagnetic chuck of a grinding machine, which comprises a base plate, a shell arranged on the base plate, a lifting frame arranged in the shell, an elastic member arranged between the lifting frame and the base plate, two groups of installation rails arranged on the base plate and capable of sliding relative to each other, two groups of clamping plates arranged opposite to each other on the installation rails, clamping grooves arranged on the clamping plates, and two groups of driving mechanisms arranged on the lifting frame and connected with the two groups of installation rails, so as to drive the installation rails to open and close during the lifting of the lifting frame. The device can control the lifting of the lifting frame under the conditions of power-off and power-on of the electromagnetic chuck, and drive the two groups of installation rails to move in opposite directions and open and close under the action of the driving mechanisms, so that the plate is quickly fixed or released, and the plate does not need to be manually fixed and installed, thereby effectively improving the working efficiency of grinding.

Description

Technical Field

[0001] This invention relates to the field of plate grinding technology, and more specifically to a plate fixing device for a grinding machine. Background Technology

[0002] Currently, when machining sheet metal parts with high precision requirements, surface grinders are used to grind the flat surfaces of the parts to improve their accuracy. During the grinding process, the grinder often uses electromagnetic chucks to fix the sheet metal parts in place, and clamping fixtures are installed on the electromagnetic chucks to secure the parts and prevent displacement and vibration during machining, thereby significantly improving the machining accuracy of the sheet metal parts.

[0003] For example, Chinese utility model patent No. 201922284523.4 provides a fixture for surface grinding of non-magnetic parts. This fixture first positions the workpiece using a base positioning seat, and then fixes the workpiece by rotating bolts to move the clamping plates around the base positioning seat. The small contact area between the clamping part and the workpiece facilitates processing. However, in existing sheet metal grinding, most sheets are fixed with bolts. Installing and removing the sheet requires rotating the bolts, making the process cumbersome and reducing grinding efficiency. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention proposes a plate fixing device for a grinding machine to solve the technical problem mentioned in the background art, that in the existing plate grinding process, most plates are fixed by bolts, which makes the plate loading and unloading process cumbersome and reduces the efficiency of plate grinding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding machine plate fixing device for fixing plates on an electromagnetic chuck, comprising:

[0006] A base plate, on which a housing is provided;

[0007] The lifting frame is vertically adjustable and is installed inside the housing. An elastic element is provided between the lifting frame and the base plate.

[0008] Two sets of mounting rails are arranged opposite each other, and are slidable and height-adjustable on the base plate. Two sets of clamping plates are arranged opposite each other on the mounting rails, and clamping grooves are formed on the clamping plates.

[0009] The drive mechanism consists of two sets, both of which are mounted on the lifting frame and connected to one of the mounting rails, so as to drive the mounting rails to open and close during the lifting and lowering of the lifting frame.

[0010] In a preferred embodiment, a magnetic column is provided at the bottom of the lifting frame, and the magnetic column can penetrate the base plate.

[0011] In a preferred embodiment, the housing is provided with an installation cavity, the lifting frame is movably disposed in the installation cavity, the inner wall of the installation cavity is provided with a sliding groove perpendicular to the base plate, and the lifting frame is provided with a guide block, which is slidably engaged in the sliding groove.

[0012] In a preferred embodiment, the drive mechanism includes:

[0013] The first rack is slidably mounted on the base plate;

[0014] The drive rod has one end hinged to the lifting frame and the other end hinged to the first rack; and

[0015] A reversing assembly, disposed on the base plate and connected to the mounting rail, is provided to reverse the sliding of the mounting rail during the sliding of the drive rod.

[0016] In a preferred embodiment, the commutation component includes:

[0017] A second rack is slidably mounted on the base plate and arranged opposite to the first rack; the second rack is connected to the mounting rail.

[0018] A gear is rotatably mounted on the base plate along its axis and simultaneously meshes with the first rack and the second rack.

[0019] In a preferred embodiment, a stop block is provided on the base plate, and a limit block is provided at the end of both the first rack and the second rack, and the limit block can contact the stop block.

[0020] In a preferred embodiment, a connecting plate is provided on the second rack, the connecting plate is slidably disposed on the housing and extends outward, a mounting frame is provided at the end of the connecting plate, the mounting rail is vertically disposed within the mounting frame, a guide component is provided on the base plate, and the mounting rail is driven to rise and fall by the guide component during the sliding of the connecting plate.

[0021] In a preferred embodiment, the guiding component includes:

[0022] A guide rail is provided on the base plate, and there is a height difference between the two ends of the guide rail; and

[0023] The guide post is located at the bottom of the mounting rail and is slidably engaged within the guide rail.

[0024] In a preferred embodiment, a slider is provided at the bottom of the clamping plate, the slider is slidably engaged on the mounting rail, and a bidirectional lead screw is rotatably provided on the mounting rail along its extension direction, and the two sets of sliders are respectively screwed to the two ends of the bidirectional lead screw.

[0025] In a preferred embodiment, at least two sets of mounting bolts are screwed onto the slider, and an adjustment groove is provided on the clamping plate. The clamping plate is slidably engaged with the two sets of mounting bolts through the adjustment groove.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In use, this device is fixedly mounted on the electromagnetic chuck of the grinding machine. The workpiece is placed on the lifting frame. When the electromagnetic chuck is energized, the lifting frame descends through magnetic attraction. During descent, the lifting frame drives two sets of mounting rails to move in opposite directions and close, thereby controlling the four sets of clamping plates to close and fix the workpiece in place for grinding. This stable clamping prevents displacement during grinding. After grinding, the electromagnetic chuck is de-energized. The lifting frame rises under the action of the elastic element, and the two sets of mounting rails open in opposite directions under the action of the drive mechanism, quickly releasing the workpiece from fixation. No manual fixing or installation of the workpiece is required, effectively improving grinding efficiency.

[0028] 2. During the process of controlling the lifting frame to descend and drive the two sets of installation rails to close, the installation rails slide on the base plate. Through the cooperation of the guide column on the installation rail and the guide rails arranged at an incline on the base plate, the installation rails are driven to move downward a certain distance, so that multiple sets of clamping plates move downward a certain distance, thereby applying downward pressure to fix the plates and preventing the clamping plates from sliding directly laterally and colliding with the plates, and further improving the stability of fixing the plates.

[0029] 3. This device can also adjust the width of the clamped plate by rotating the bidirectional lead screw to drive two sets of sliders to slide in opposite directions. By loosening the mounting bolts, the position of the clamping plate is loosened and slid along the extension direction of the adjustment groove. Then, the mounting bolts are tightened to fix the position of the clamping plate, thereby fixing the length of the clamped plate. Different sizes of clamping plates can also be replaced or the height of the mounting bolts can be finely adjusted to fix plates of different thicknesses. This facilitates the effective and rapid fixing of plates of different sizes, effectively improving the applicability of the device and reducing the cost of use. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0031] Figure 1 A front view of a grinding machine plate fixing device provided by the present invention;

[0032] Figure 2 This is a cross-sectional view of a grinding machine plate fixing device according to the present invention. Figure 1 ;

[0033] Figure 3 for Figure 2 Enlarged view of region a in the middle;

[0034] Figure 4 This is a cross-sectional view of a grinding machine plate fixing device according to the present invention. Figure 2 ;

[0035] Figure 5 This is a cross-sectional view of a grinding machine plate fixing device according to the present invention. Figure 3 ;

[0036] Figure 6 for Figure 5 Enlarged view of region b in the middle;

[0037] Figure 7 This is a schematic diagram of the internal structure of a grinding machine plate fixing device according to the present invention;

[0038] Figure 8 for Figure 7 A magnified view of region c in the middle.

[0039] Figure label:

[0040] 101. Base plate; 102. Housing; 103. Mounting cavity; 104. Slide groove; 105. Guide rail; 106. Gear; 107. Stop block;

[0041] 201. Lifting frame; 202. Magnetic column; 203. Elastic element; 204. Drive rod; 205. First rack; 206. Limiting block; 207. Guide block;

[0042] 301. Second rack; 302. Connecting plate; 303. Mounting frame; 304. Mounting rail; 305. Guide post; 306. Two-way lead screw;

[0043] 401. Slider; 402. Clamping plate; 403. Clamping groove; 404. Adjustment groove; 405. Mounting bolt. Detailed Implementation

[0044] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0045] Example:

[0046] like Figures 1 to 4 As shown, the present invention provides a plate fixing device for a grinding machine, used to fix plates on an electromagnetic chuck of a grinding machine. It includes a base plate 101, a housing 102 on the base plate 101, and a liftable lifting frame 201 inside the housing 102. When the lifting frame 201 is at its lowest position, its top surface is lower than the upper surface of the housing 102. An elastic element 203 is provided between the lifting frame 201 and the base plate 101. A magnetic suction column 202 is provided at the bottom of the lifting frame 201, which can penetrate the base plate 101. A mounting cavity 103 is provided on the housing 102, and the lifting frame 201 is movably mounted within the mounting cavity 103. A sliding groove 104 perpendicular to the base plate 101 is formed on the inner wall of the mounting cavity 103. A guide block 207 is provided on the lifting frame 201, and the guide block 207 is slidably engaged within the sliding groove 104.

[0047] During use, the device is fixed to the magnetic chuck of the grinding machine, and the plate to be ground is placed on the lifting frame 201. The lifting frame 201 can be raised and lowered under the positioning of the guide block 207 and the slide groove 104. When the magnetic chuck is powered on, the lifting frame 201 descends and compresses the elastic element 203, so that the plate moves downward onto the housing 102. The magnetic column 202 makes the adsorption of the lifting frame 201 more stable. After the magnetic chuck is powered off, the lifting frame 201 rises under the action of the elastic element 203. Since the magnetic chuck still has a certain magnetic force attached to the entire fixing device or metal plate after the power is off, in some embodiments, the lifting frame 201 can be set to protrude out of the mounting cavity 103 when it moves upward to the limit position, so as to fix the plate and detach it from the magnetic attraction of the device, thereby making the disassembly of the plate easier.

[0048] like Figures 1 to 4 As shown, in this embodiment, two sets of mounting rails 304 are slidably arranged on the base plate 101. The mounting rails 304 can be raised and lowered on the base plate 101. Two sets of clamping plates 402 are arranged opposite to each other on the mounting rails 304, and clamping grooves 403 are formed on the clamping plates 402. Two sets of driving mechanisms are provided on the lifting frame 201. Each driving mechanism is connected to one of the mounting rails 304 to drive the mounting rails 304 to open and close during the raising and lowering of the lifting frame 201. The driving mechanism includes a first rack 205 slidably arranged on the base plate 101, and a driving rod 204 is hinged to the lifting frame 201. The other end of the driving rod 204 is hinged to the first rack 205.

[0049] The base plate 101 is also provided with a reversing assembly connected to the mounting rail 304, so as to reverse the sliding of the mounting rail 304 during the sliding of the drive rod 204. The reversing assembly includes a second rack 301 slidably disposed on the base plate 101, the second rack 301 being arranged opposite to the first rack 205 and connected to the mounting rail 304. The base plate 101 is provided with a rotatable gear 106, which meshes with both the first rack 205 and the second rack 301.

[0050] During the lifting process of the lifting frame 201 under the action of magnetic attraction and elastic element 203, the first rack 205 is controlled to slide by the drive rod 204. During the sliding process, the first rack 205 can drive the gear 106 to rotate, and then the gear 106 drives the second rack 301 to slide in the opposite direction. During the sliding process, the second rack 301 can control the sliding of the mounting rail 304. Thus, when the lifting frame 201 rises, the two sets of mounting rails 304 can open in opposite directions, and when the lifting frame 201 falls, the two sets of mounting rails 304 can be controlled to close, thereby driving the clamping plate 402 to open and close to clamp and fix the plate.

[0051] like Figure 2 , 3 As shown, in this embodiment, a stop block 107 is provided on the base plate 101, and a limit block 206 is provided at the end of both the first rack 205 and the second rack 301. The limit block 206 can contact the stop block 107. By setting the stop block 107, when the first rack 205 and the second rack 301 move to their limit positions, the limit block 206 can contact the stop block 107, preventing the first rack 205 and the second rack 301 from moving beyond their stroke, thus improving the stability of the internal structure of the device and the stability of the clamping plate.

[0052] like Figure 2 , 4 As shown in Figures 5 and 6, in this embodiment, a connecting plate 302 is provided on the second rack 301. The connecting plate 302 is slidably mounted on the housing 102 and extends outward. A mounting frame 303 is provided at the end of the connecting plate 302, and a mounting rail 304 is vertically mounted inside the mounting frame 303. During the movement of the second rack 301, it drives the mounting frame 303 to move, and the mounting frame 303, in turn, drives the mounting rail 304 to slide accordingly.

[0053] A guide assembly is provided on the base plate 101. During the sliding process of the connecting plate 302, the guide assembly drives the installation rail 304 to rise and fall. The guide assembly includes a guide rail 105 on the base plate 101. There is a height difference between the two ends of the guide rail 105. A guide post 305 is provided at the bottom of the installation rail 304. The guide post 305 is slidably locked in the guide rail 105.

[0054] As the mounting track 304 slides on the base plate 101 following the mounting frame 303, the guide post 305 slides within the guide track 105, thereby controlling the lifting and lowering of the mounting track 304 through the guidance of the guide track 105. This allows the clamping plate 402 to move downward a certain distance during closing and upward a certain distance during opening, thus applying downward pressure to the plate, making the plate more securely fixed and preventing the clamping plate 402 from colliding with the plate.

[0055] like Figure 1 , 7 As shown in Figure 8, in this embodiment, a slider 401 is provided at the bottom of the clamping plate 402. The slider 401 is slidably engaged on the mounting rail 304. A bidirectional lead screw 306 is rotatably provided on the mounting rail 304 along its extension direction. Two sets of sliders 401 are respectively screwed to both ends of the bidirectional lead screw 306. At least two sets of mounting bolts 405 are screwed onto the slider 401. An adjustment groove 404 is provided on the clamping plate 402, and the clamping plate 402 is slidably engaged on the two sets of mounting bolts 405 through the adjustment groove 404.

[0056] The device can also adjust the width of the clamped plate by rotating the bidirectional lead screw 306 to drive the two sets of sliders 401 to slide in opposite directions. By loosening the mounting bolts 405, the position of the clamping plate 402 is loosened and slid along the extension direction of the adjustment groove 404. Then, the mounting bolts 405 are tightened to fix the position of the clamping plate 402, thereby fixing the length of the clamped plate. Different sizes of clamping plates 402 can also be replaced or the height of the mounting bolts 405 can be finely adjusted to fix plates of different thicknesses. This facilitates the effective and rapid fixing of plates of different sizes, effectively improving the applicability of the device and reducing the cost of use.

[0057] Specific usage and beneficial effects of the present invention:

[0058] In use, this device is fixedly mounted on the electromagnetic chuck of the grinding machine. The workpiece is placed on the lifting frame 201. When the electromagnetic chuck is energized, the lifting frame 201 descends due to magnetic attraction. During descent, the lifting frame 201 drives the first rack 205 to slide via the drive rod 204. Under the action of the first rack 205 and the gear 106, the two sets of second racks 301 slide in opposite directions, causing the two sets of mounting rails 304 to close in opposite directions. This, in turn, controls the four sets of clamping plates 402 to close and clamp the workpiece, allowing for stable clamping during grinding and preventing displacement. After grinding, the electromagnetic chuck is de-energized. Under the action of the elastic element 203, the lifting frame 201 rises, and under the action of the drive mechanism, the two sets of mounting rails 304 open in opposite directions, quickly releasing the workpiece from fixation. This eliminates the need for manual fixation and installation, effectively improving grinding efficiency.

[0059] During the process of controlling the lifting frame 201 to descend and drive the two sets of mounting rails 304 to close, the mounting rails 304 slide on the base plate 101. Through the cooperation of the guide post 305 on the mounting rails 304 and the guide rail 105 inclined on the base plate 101, the mounting rails 304 are driven to move downward a certain distance, so that multiple sets of clamping plates 402 move downward a certain distance, thereby applying downward pressure to fix the plate and preventing the clamping plates 402 from sliding directly laterally and colliding with the plate, and further improving the stability of fixing the plate.

[0060] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A plate fixing device for a grinding machine, used to fix plates on an electromagnetic chuck of a grinding machine, characterized in that, Including: A base plate (101) is provided with a housing (102). The lifting frame (201) is vertically and vertically disposed within the housing (102), and an elastic element (203) is provided between the lifting frame (201) and the base plate (101). Two sets of mounting rails (304) are arranged opposite each other, and are mounted on the base plate (101) in a way that allows them to slide in opposite directions and be raised and lowered. Two sets of clamping plates (402) are arranged opposite each other on the mounting rails (304), and clamping grooves (403) are provided on the clamping plates (402). The drive mechanism is provided in two sets, both of which are set on the lifting frame (201) and connected to one of the mounting rails (304) to drive the mounting rails (304) to open and close during the lifting of the lifting frame (201); The driving mechanism includes: The first rack (205) is slidably mounted on the base plate (101); The drive rod (204) is hinged at one end to the lifting frame (201) and at the other end to the first rack (205); and A reversing assembly is disposed on the base plate (101) and connected to the mounting rail (304) to reverse the sliding of the mounting rail (304) during the sliding of the drive rod (204); The commutation component includes: The second rack (301) is slidably mounted on the base plate (101) and arranged opposite to the first rack (205). The second rack (301) is connected to the mounting rail (304). A gear (106) is rotatably mounted on the base plate (101) along its axis and simultaneously meshes with the first rack (205) and the second rack (301); The second rack (301) is provided with a connecting plate (302), the connecting plate (302) is slidably disposed on the housing (102) and extends outward, the end of the connecting plate (302) is provided with a mounting frame (303), the mounting rail (304) is vertically disposed in the mounting frame (303), the base plate (101) is provided with a guide component, and the mounting rail (304) is driven to rise and fall through the guide component during the sliding process of the connecting plate (302); The guiding component includes: A guide rail (105) is disposed on the base plate (101), and there is a height difference between the two ends of the guide rail (105); and A guide post (305) is provided at the bottom of the mounting rail (304) and is slidably engaged within the guide rail (105); The bottom of the clamp (402) is provided with a slider (401), which is slidably locked on the mounting rail (304). The mounting rail (304) is rotatably provided with a two-way screw rod (306) along its extension direction. The two sets of sliders (401) are respectively screwed to both ends of the two-way screw rod (306).

2. A grinder plate securing device according to claim 1, wherein: The bottom of the lifting frame (201) is provided with a magnetic column (202), which can penetrate the bottom plate (101).

3. A grinder plate securing device according to claim 1, wherein: The housing (102) is provided with an installation cavity (103), and the lifting frame (201) is provided in the installation cavity (103) in a height-reducible manner. The inner wall of the installation cavity (103) is provided with a sliding groove (104) perpendicular to the base plate (101). The lifting frame (201) is provided with a guide block (207), and the guide block (207) is slidably engaged in the sliding groove (104).

4. A grinder plate securing device according to claim 1, wherein: A stop block (107) is provided on the base plate (101), and a limit block (206) is provided at the end of the first rack (205) and the second rack (301), and the limit block (206) can contact the stop block (107).

5. A grinder plate securing device according to claim 1, wherein: At least two sets of mounting bolts (405) are screwed onto the slider (401), and an adjustment groove (404) is provided on the clamping plate (402). The clamping plate (402) is slidably locked onto the two sets of mounting bolts (405) through the adjustment groove (404).

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