Surface grinding machine with automatic feeding and discharging functions

Abstract

The surface grinding machine comprises a supporting base, one side of the top of the supporting base is connected with a machining table, the other side of the top of the supporting base is provided with a movable discharging mechanism, the top of the machining table is provided with a first supporting plate, and the top of the first supporting plate is slidably connected with a movable working plate; a grinding mechanism is arranged on the side face of the movable working plate, a first sliding groove is formed in the middle of the top face of the movable working plate, a centering clamping mechanism is arranged on one side of the top of the first sliding groove, an automatic feeding mechanism is arranged on one side of the top of the first supporting plate, and the automatic feeding mechanism and the movable discharging mechanism are arranged on the opposite sides. The surface grinding machine is used for solving the technical problems that manual feeding and discharging are needed due to the design mode of an existing surface grinding machine, a workpiece needs to be manually taken out before each time of machining, a new workpiece needs to be placed on a clamp for operation, efficiency is low, and labor intensity is high.

Description

Technical Field

[0001] The invention mainly relates to the technical field of surface grinders, and in particular to a surface grinder with automatic loading and unloading. Background Art

[0002] Surface grinder is a common metal processing machine tool, which is specially used for precision grinding of the plane of workpiece. Its working principle is to remove a very thin layer of metal on the surface of the material through the relative movement of the grinding wheel and the workpiece to achieve precise flatness, finish and size requirements.

[0003] The main components of a surface grinder include: Bed: The main body of the surface grinder, which supports and carries the various components. Worktable: Fixes or clamps the workpiece and can usually move along the X-axis (front-to-back direction) or Y-axis (left-to-right direction). Grinding wheel spindle: The component on which the grinding wheel is mounted, which grinds the workpiece by rotating at high speed. Feed system: Used to control the precise movement of the worktable or grinding wheel, thereby achieving precise grinding depth and path control.

[0004] The inventor discovered the following defects during the operation of the specific embodiment: The current horizontal workbench, with the grinding wheel mounted on the horizontal spindle, is often used for precision metal processing. The metal fixture of the horizontal workbench will move with the horizontal platform at the bottom. Then the horizontal plane of the metal workpiece is processed. This design method requires manual loading and unloading. Before each processing, the workpiece needs to be manually taken out and the new workpiece needs to be placed on the fixture for operation, which is inefficient and labor-intensive.

[0005] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0006] 1. Technical problem to be solved by the invention: The present invention provides a surface grinder with automatic loading and unloading function, so as to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution: To achieve the above-mentioned purpose, the technical solution provided by the present invention is: an automatic loading and unloading surface grinder, comprising a supporting base, one side of the top of the supporting base is connected to the processing table, and the other side of the top of the supporting base is provided with a movable unloading mechanism, a first supporting plate is provided on the top of the processing table, the top of the first supporting plate is slidably connected to the movable working plate, a grinding mechanism is provided on the side of the movable working plate, a first slide groove is opened in the middle of the top surface of the movable working plate, a center clamping mechanism is provided on one side of the top of the first slide groove, an automatic loading mechanism is provided on one side of the top of the first supporting plate, and the automatic loading mechanism is arranged on the opposite side of the movable unloading mechanism. When the device is working, a metal block to be ground is first placed on the automatic loading mechanism The mobile feeding mechanism is moved into the automatic feeding mechanism, and then the mobile working plate moves toward the automatic feeding mechanism. When it moves into the automatic feeding mechanism, the bottom metal block is centered and preliminarily clamped by the center clamping mechanism, and then the mobile working plate moves outward to move the metal block to the bottom of the grinding mechanism, and the grinding mechanism performs flat grinding on the top of the metal block. During the grinding process, the mobile working plate can continue to move left and right, which is convenient for the grinding mechanism to grind various parts of the top of the metal block. After the grinding is completed, the mobile working plate moves to the far right of the processing table, and the mobile unloading mechanism clamps the metal block and performs unloading operations. The whole process is automatic loading and unloading, and multiple metal blocks can be placed in the automatic feeding mechanism at one time, which improves the grinding efficiency.

[0008] Furthermore, the automatic feeding mechanism includes a material storage box, in which a plurality of metal blocks to be processed are placed, a working groove is opened in the middle of the bottom surface of the material storage box, support mechanisms for the metal blocks are arranged at intervals in the working groove, sliding grooves are symmetrically arranged on both sides of the support mechanism, a sliding limiting mechanism is arranged in the sliding groove, and the sliding limiting mechanism is clamped to the bottom of the movable working plate.

[0009] Furthermore, the supporting mechanism includes a rotating shaft, both ends of which are connected to the working groove, the rotating shaft is rotatably connected to a supporting block, the top of the supporting block is an arc-shaped structure, a fixed block is provided at the bottom of one side of the supporting block, one end of a first spring is connected to the fixed block, the other end of the first spring is obliquely connected to the middle part of the supporting block, and a blocking positioning block is provided on the other side of the supporting block.

[0010] Furthermore, the sliding limit mechanism includes a first slider, a second slide groove is provided on the side of the first slider close to the movable working plate, a second spring is provided at the bottom of the second slide groove, the top of the second spring is connected to a trapezoidal lifting limit block, a triangular groove is provided on the outer side of the trapezoidal lifting limit block, a blocking block is provided at the rear end of the trapezoidal lifting limit block, a trapezoidal concave groove is provided at the corresponding position of the bottom surface of the movable working plate, the trapezoidal concave groove matches the trapezoidal lifting limit block, and a triangular alignment block is provided on the side of the first slide groove close to the movable working plate, and the triangular alignment block matches the trapezoidal concave groove.

[0011] Furthermore, two groups of third sliding grooves are symmetrically opened on both sides of the material storage box, the third sliding groove is slidably connected to the first sliding column, the outer end of the first sliding column is connected to the first combining plate, the middle part of the first combining plate is matched with the threaded column, the inner end of the first sliding column is connected to the first adjustment plate, and a fourth sliding groove is opened on the rear side of the material storage box, the fourth sliding groove is matched with the second sliding column, the outer end of the second sliding column is connected to the second combining plate, and a third spring is provided inside the material storage box, and the third spring is connected to the second adjustment plate.

[0012] Furthermore, fifth sliding grooves are opened on both sides of the first support plate, and the fifth sliding grooves are slidably connected to the movable working plate. A sixth sliding groove is opened in the middle of the first support plate, and a first rotating screw rod is arranged in the sixth sliding groove, and the first rotating screw rod is matched and connected to the movable working plate.

[0013] Furthermore, a seventh slide groove is opened in the middle of the movable working plate, and sensing blocks are arranged at both ends of the seventh slide groove. A non-threaded section is arranged in the middle of the first rotating screw, and a travel switch is arranged on the non-threaded section.

[0014] Furthermore, the centering clamping mechanism includes a clamping seat, a second rotating screw is provided in the clamping seat, the second rotating screw is matched and connected to two clamping blocks, and a concave groove is opened on one side of the clamping seat, and the concave groove is matched and connected to the clamping blocks.

[0015] Furthermore, the mobile unloading mechanism includes a square mobile seat, the bottom of the square mobile seat is slidably connected to the support base, the middle of the bottom surface of the square mobile seat is connected to a hydraulic lifting column, the bottom of the hydraulic lifting column is connected to an electromagnetic suction cup, and a telescopic cylinder is provided on one side of the support base, and the telescopic shaft of the telescopic cylinder is connected to the square mobile seat.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The invention has a reasonable design. When grinding metal, the metal block can be automatically loaded and unloaded through the automatic loading mechanism and the mobile unloading structure, and the working efficiency is high. The trapezoidal lifting limit block and the blocking block of the device cooperate with each other, and the metal block can be blocked when the metal block is pulled out, and reset when the mobile working plate is moved out. By setting a center clamping mechanism in conjunction with a travel switch, the metal block can be clamped, which is convenient for the grinding device to grind, and the travel switch is used to automatically lock and open before and after grinding.

[0017] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the mobile unloading mechanism of the present invention; Figure 3 It is a structural schematic diagram of the automatic feeding mechanism of the present invention; Figure 4 It is a schematic diagram of the bottom structure of the automatic feeding mechanism of the present invention; Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A; Figure 6 It is a schematic diagram of the bottom structure of the mobile working plate of the present invention; Figure 7 This is a schematic diagram of the structure of the present invention when loading materials; Figure 8 It is a schematic structural diagram of the present invention when cutting materials.

[0019] Reference numerals: 1. Support base; 2. Processing table; 3. Mobile unloading mechanism; 31. Square moving seat; 32. Hydraulic lifting column; 33. Electromagnetic suction cup; 34. Telescopic cylinder; 4. First support plate; 5. Mobile working plate; 6. Grinding mechanism; 7. First slide groove; 8. Centering clamping mechanism; 81. Clamping seat; 82. Second rotating screw rod; 83. Clamping block; 9. Automatic feeding mechanism; 91. Material storage box; 92. Working groove; 93. Support mechanism; 94. Sliding limit mechanism; 95. Sliding groove; 931. Rotating shaft; 932. Support block; 933. Fixed block; 934. First spring; 935. Blocking positioning Block; 941, the first slider; 942, the second slide; 943, the second spring; 944, the trapezoidal lifting limit block; 945, the triangular groove; 946, the blocking block; 947, the trapezoidal concave groove; 948, the triangular alignment block; 911, the third slide; 912, the first slide post; 913, the first combining plate; 914, the threaded column; 915, the first adjustment plate; 916, the fourth slide; 917, the second slide post; 918, the third spring; 919, the second adjustment plate; 41, the fifth slide; 42, the sixth slide; 43, the first rotating screw; 51, the seventh slide; 52, the induction block; 53, the travel switch. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0024] Refer to the attached Figure 1-8A surface grinder with automatic loading and unloading comprises a support base 1, one side of the top of the support base 1 is connected to a processing table 2, a mobile unloading mechanism 3 is arranged on the other side of the top of the support base 1, a first support plate 4 is arranged on the top of the processing table 2, a mobile working plate 5 is slidably connected to the top of the first support plate 4, a grinding mechanism 6 is arranged on the side of the mobile working plate 5, a first slide groove 7 is opened in the middle of the top surface of the mobile working plate 5, a center clamping mechanism 8 is arranged on one side of the top of the first slide groove 7, an automatic loading mechanism 9 is arranged on one side of the top of the first support plate 4, and the automatic loading mechanism 9 is arranged on the opposite side of the mobile unloading mechanism 3. When the device is working, the metal block to be polished is first placed in the automatic loading mechanism 9 , and then the mobile working plate 5 moves toward the automatic feeding mechanism 9. When it moves into the automatic feeding mechanism 9, the bottom metal block is centered and preliminarily clamped by the center clamping mechanism 8. Then the mobile working plate 5 moves outward and moves the metal block to the bottom of the grinding mechanism 6. The grinding mechanism 6 performs flat grinding on the top of the metal block. During the grinding process, the mobile working plate 5 can continue to move left and right, which is convenient for the grinding mechanism 6 to grind various parts of the top of the metal block. After the grinding is completed, the mobile working plate 5 moves to the rightmost side of the processing table 2, and the mobile unloading mechanism 3 clamps the metal block and performs unloading operations. The whole process automatically loads and unloads, and multiple metal blocks can be placed in the automatic feeding mechanism 9 at one time, thereby improving the grinding efficiency.

[0025] Please pay attention to Figure 3 and Figure 4 The automatic feeding mechanism 9 includes a material storage box 91, in which a plurality of metal blocks to be processed are placed, a working groove 92 is opened in the middle of the bottom surface of the material storage box 91, and a support mechanism 93 of the metal blocks is arranged in the working groove 92, and sliding grooves 95 are symmetrically arranged on both sides of the support mechanism 93, and a sliding limit mechanism 94 is arranged in the sliding groove 95, and the sliding limit mechanism 94 is clamped with the bottom of the movable working plate 5. A plurality of metal blocks can be stacked in the material storage box 91, and the support mechanism 93 will move the bottom metal blocks after the metal blocks are placed in the material storage box 91. The metal block at the bottom is supported, and then the mobile working plate 5 slides into the storage box 91. When sliding in, the supporting mechanism 93 will tilt backwards under the pressure of the mobile working plate 5. When the mobile working plate 5 is inserted into the bottom of the storage box 91, the metal block loses the supporting force of all supporting mechanisms 93 and falls down on the mobile working plate 5. Then the mobile working plate 5 is engaged with the sliding limiting mechanism 94. When the mobile working plate 5 slides outward, the sliding limiting mechanism 94 will bring the metal block outward until the mobile working plate 5 is out of the sliding groove 95.

[0026] Please pay attention to Figure 4The support mechanism 93 includes a rotating shaft 931, both ends of which are connected to the working groove 92, and the rotating shaft 931 is rotatably connected to a support block 932. The top of the support block 932 is an arc-shaped structure, and a fixed block 933 is provided at the bottom of one side of the support block 932. One end of a first spring 934 is connected to the fixed block 933, and the other end of the first spring 934 is obliquely connected to the middle of the support block 932. A blocking positioning block 935 is provided on the other side of the support block 932. When the mobile working plate 5 does not enter the storage box 91, the first spring 93 4 and the blocking of the blocking positioning block 935, the support block 932 is in a vertical upward state, and the metal block on the top is supported by multiple support blocks 932. When the mobile working plate 5 enters the material storage box 91, the support blocks 932 will fall backwards one by one. When all the support blocks 932 fall backwards, the mobile working plate 5 completely enters the material storage box 91, and the bottom metal block falls on the mobile working plate 5. When the mobile working plate 5 moves outward, the support blocks 932 are reset to the vertical state one by one, and the second metal block on the top is supported by the support block 932, waiting for the next operation.

[0027] Please pay attention to Figure 3 and Figure 5 The sliding limiting mechanism 94 includes a first slider 941, a second slide groove 942 is provided on the side of the first slider 941 close to the movable working plate 5, a second spring 943 is provided at the bottom of the second slide groove 942, and the top of the second spring 943 is connected to a trapezoidal lifting limiting block 944, a triangular groove 945 is provided on the outer side of the trapezoidal lifting limiting block 944, a blocking block 946 is provided at the rear end of the trapezoidal lifting limiting block 944, a trapezoidal concave groove 947 is provided at the corresponding position of the bottom surface of the movable working plate 5, and the trapezoidal concave groove 947 matches the trapezoidal lifting limiting block 944, a triangular alignment block 948 is provided on the side of the first slide groove 7 close to the movable working plate 5, and the triangular alignment block 948 matches the trapezoidal concave groove 947, and the sliding limiting mechanism 94 can assist the movable working plate 5 to pull out the bottom metal block. When the movable working plate 5 enters the material storage box 91, the end of the movable working plate 5 will push the raised trapezoidal lifting limit block 944 backwards. When the movable working plate 5 enters the deepest part of the material storage box 91, the trapezoidal concave groove 947 at the bottom of the movable working plate 5 will engage with the trapezoidal lifting limit block 944, and then the movable working plate 5 moves outward. At this time, the blocking block 946 will block the end of the metal block, and the metal block will move outward with the movable working plate 5. When the first slider 941 slides to the end of the second slide groove 942, the triangular alignment block 948 will abut against the triangular groove 945, and the triangular groove 945 will cause the trapezoidal lifting limit block 944 to drop, so that the first slider 941 will stop at the end of the second slide groove 942 again, and the movable working plate 5 will continue to slide outward. When the movable working plate 5 enters the material storage box 91 again, the sliding limit mechanism 94 can facilitate the blocking and pulling out of the metal block again.

[0028] Please pay attention to Figure 3 , two groups of third slide grooves 911 are symmetrically opened on both sides of the material storage box 91, and the third slide grooves 911 are slidably connected to the first slide post 912, the outer end of the first slide post 912 is connected to the first combining plate 913, the middle part of the first combining plate 913 is matched with the threaded column 914, and the inner end of the first slide post 912 is connected to the first adjustment plate 915. A fourth slide groove 916 is opened on the rear side of the material storage box 91, and the fourth slide groove 916 is matched with the second slide post 917, and the outer end of the second slide post 917 is connected to the second combining plate. A third spring 918 is arranged inside the material storage box 91, and the third spring 918 is connected to the second adjustment plate 919. The first adjustment plate 915 can adjust its position by rotating the threaded column 914 to adapt to different metal block widths. The second adjustment plate 919 is adjusted according to the length of metal blocks of different specifications under the action of the spring, so as to adapt to metal blocks of different lengths. By setting the first adjustment plate 915 and the second adjustment plate 919, it can adapt to the grinding operation of metal blocks of different sizes.

[0029] Please pay attention to Figure 1 A fifth slide groove 41 is opened on both sides of the first support plate 4, and the fifth slide groove 41 is slidably connected to the movable working plate 5. A sixth slide groove 42 is opened in the middle of the first support plate 4, and a first rotating screw rod 43 is arranged in the sixth slide groove 42. The first rotating screw rod 43 is matched and connected to the movable working plate 5. The first rotating screw rod 43 can drive the movable working plate 5 to move back and forth on the first support plate 4, thereby achieving the effect of loading and unloading operations and cooperating with the grinding mechanism 6.

[0030] Please pay attention to Figure 7 and Figure 8 A seventh slide groove 51 is opened in the middle of the movable working plate 5, and sensing blocks 52 are arranged at both ends of the seventh slide groove 51. A non-threaded section is arranged in the middle of the first rotating screw 43, and a travel switch 53 is arranged on the non-threaded section. The travel switch 53 is electrically connected to the center clamping mechanism 8. When the movable working plate 5 moves toward the material storage box 91, the center clamping mechanism 8 is in an open state. When the movable working plate 5 moves into the material storage box 91, the sensing block 52 on the right side of the seventh slide groove 51 contacts the travel switch 53, and the center clamping mechanism 8 clamps the metal block. Then the movable working plate 5 moves to the right for grinding operation. After the grinding operation is completed, the movable working plate 5 moves to the right to the bottom, and the sensing block 52 on the left side of the seventh slide groove 51 contacts the travel switch 53, and the center clamping mechanism 8 opens, and the mobile unloading machine performs unloading operation.

[0031] Please pay attention to Figure 8The central clamping mechanism 8 includes a clamping seat 81, and a second rotating screw 82 is provided in the clamping seat 81. The second rotating screw 82 is matched and connected to two clamping blocks 83. A concave groove is opened on one side of the clamping seat 81, and the concave groove is matched and connected to the clamping block 83. The clamping block 83 can clamp the metal block according to the electrical signal of the travel switch 53. When clamping is required, the second rotating screw 82 rotates to drive the two clamping blocks 83 to move toward the middle, thereby clamping the metal block. During grinding, the grinding rotation direction is toward the clamping seat 81. Even if the metal block slides, it will be abutted by the clamping seat 81. The three-sided positioning method is used to facilitate the grinding of the metal block.

[0032] Please pay attention to Figure 2 The mobile unloading mechanism 3 includes a square moving seat 31, the bottom of the square moving seat 31 is slidably connected to the support base 1, the middle of the bottom surface of the square moving seat 31 is connected to a hydraulic lifting column 32, the bottom of the hydraulic lifting column 32 is connected to an electromagnetic suction cup 33, and a telescopic cylinder 34 is provided on one side of the support base 1, and the telescopic shaft of the telescopic cylinder 34 is connected to the square moving seat 31. When it is necessary to unload the polished metal block, the center clamping mechanism 8 releases the metal block, and the square moving seat 31 moves toward the metal block under the action of the telescopic cylinder 34, and the electromagnetic suction cup 33 at the bottom of the hydraulic lifting column 32 moves toward the metal block, and then the adsorption operation is performed. After adsorption, the telescopic cylinder 34 drives the square moving seat 31 to move backward to transport the processed metal block to the next process equipment, such as transmission equipment such as conveyor belts.

[0033] Please pay attention to Figure 7 and Figure 8When the device is working, the metal blocks are first stacked and placed in the storage box 91. The storage box 91 adjusts the first adjustment plate 915 and the second adjustment plate 919 according to the specifications of the metal blocks in advance, and then the mobile working plate 5 moves toward the storage box 91. At this time, the center clamping mechanism 8 is in an open state. When the mobile working plate 5 is inserted into the storage box 91, the sensing block 52 and the travel switch 53 are triggered, and the center clamping mechanism 8 clamps the metal blocks. At the same time, the trapezoidal concave groove 947 at the bottom of the mobile working plate 5 will be engaged with the trapezoidal lifting limit block 944, and the blocking block 946 will block the end of the metal block. Then the mobile working plate 5 moves outward to bring out the bottom metal block. When the metal block leaves the storage box 91, the bottom of the storage box 91 The metal block on the bottom falls again and waits for the next unloading operation on the side. At the same time, the triangular alignment block 948 will be connected to the triangular groove 945, and the triangular groove 945 will cause the trapezoidal lifting limit block 944 to drop, and the mobile working plate 5 will continue to slide outward, and then the mobile working plate 5 will move the metal block, and the grinding device will grind the top of the metal block. The grinding device is the existing technology of the surface grinder and will not be described here. After the grinding is completed, the mobile working plate 5 moves toward the mobile unloading machine. After the mobile working plate 5 moves to the far right, the sensing block 52 and the travel switch 53 on this side are triggered again, and the center clamping mechanism 8 is in the open state again, and the mobile unloading machine performs unloading operations. This device can automatically grind the metal blocks with high work efficiency.

[0034] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A surface grinder with automatic loading and unloading, characterized in that: The invention comprises a support base (1), wherein one side of the top of the support base (1) is connected to a processing table (2), and the other side of the top of the support base (1) is provided with a movable unloading mechanism (3), and the top of the processing table (2) is provided with a first support plate (4), and the top of the first support plate (4) is slidably connected to a movable working plate (5), and a grinding mechanism (6) is provided on the side of the movable working plate (5), and a first slide groove (7) is opened in the middle of the top surface of the movable working plate (5), and a center clamping mechanism (8) is provided on one side of the top of the first slide groove (7), and an automatic feeding mechanism (9) is provided on one side of the top of the first support plate (4), and the automatic feeding mechanism (9) is arranged on the opposite side of the movable unloading mechanism (3).

2. The surface grinder with automatic loading and unloading according to claim 1, characterized in that: The automatic feeding mechanism (9) comprises a material storage box (91), wherein a plurality of metal blocks to be processed are placed inside the material storage box (91), a working groove (92) is provided in the middle of the bottom surface of the material storage box (91), support mechanisms (93) for the metal blocks are arranged in the working groove (92) at intervals, sliding grooves (95) are symmetrically arranged on both sides of the support mechanism (93), and a sliding limit mechanism (94) is arranged in the sliding groove (95), and the sliding limit mechanism (94) is clamped to the bottom of the movable working plate (5).

3. The surface grinder with automatic loading and unloading according to claim 2, characterized in that: The support mechanism (93) comprises a rotating shaft (931), the two ends of the rotating shaft (931) are connected to the working groove (92), the rotating shaft (931) is rotatably connected to a support block (932), the top of the support block (932) is an arc-shaped structure, a fixed block (933) is provided at the bottom of one side of the support block (932), one end of a first spring (934) is connected to the fixed block (933), the other end of the first spring (934) is obliquely connected to the middle of the support block (932), and a blocking positioning block (935) is provided on the other side of the support block (932).

4. The surface grinder with automatic loading and unloading according to claim 3, characterized in that: The sliding limit mechanism (94) comprises a first sliding block (941); a second sliding groove (942) is provided on a side of the first sliding block (941) close to the movable working plate (5); a second spring (943) is provided at the bottom of the second sliding groove (942); a trapezoidal lifting limit block (944) is connected to the top of the second spring (943); a triangular groove (945) is provided on the outer side of the trapezoidal lifting limit block (944); a blocking block (946) is provided at the rear end of the trapezoidal lifting limit block (944); a trapezoidal concave groove (947) is provided at a corresponding position on the bottom surface of the movable working plate (5); the trapezoidal concave groove (947) matches the trapezoidal lifting limit block (944); and a triangular alignment block (948) is provided on a side of the first sliding groove (7) close to the movable working plate (5); the triangular alignment block (948) matches the trapezoidal concave groove (947).

5. The surface grinder with automatic loading and unloading according to claim 4, characterized in that: Two sets of third slide grooves (911) are symmetrically formed on both sides of the material storage box (91), the third slide grooves (911) are slidably connected to the first slide column (912), the outer end of the first slide column (912) is connected to the first coupling plate (913), the middle part of the first coupling plate (913) is matched with the threaded column (914), the inner end of the first slide column (912) is connected to the first adjustment plate (915), the rear side of the material storage box (91) is formed with a fourth slide groove (916), the inner side of the fourth slide groove (916) is matched with the second slide column (917), the outer end of the second slide column (917) is connected to the second coupling plate, and a third spring (918) is provided inside the material storage box (91), and the third spring (918) is connected to the second adjustment plate (919).

6. The surface grinder with automatic loading and unloading according to claim 1, characterized in that: The first support plate (4) has fifth sliding grooves (41) on both sides, the fifth sliding grooves (41) are slidably connected to the movable working plate (5), the first support plate (4) has a sixth sliding groove (42) in the middle, a first rotating screw rod (43) is arranged in the sixth sliding groove (42), and the first rotating screw rod (43) is matched and connected to the movable working plate (5).

7. The surface grinder with automatic loading and unloading according to claim 6, characterized in that: A seventh slide groove (51) is provided in the middle of the movable working plate (5), and sensing blocks (52) are provided at both ends of the seventh slide groove (51). A non-threaded section is provided in the middle of the first rotating screw (43), and a travel switch (53) is provided on the non-threaded section.

8. The surface grinder with automatic loading and unloading according to claim 6, characterized in that: The centering clamping mechanism (8) comprises a clamping seat (81), a second rotating screw (82) is arranged inside the clamping seat (81), the second rotating screw (82) is matched and connected to two clamping blocks (83), and a concave sliding groove is opened on one side of the clamping seat (81), and the concave sliding groove is matched and connected to the clamping blocks (83).

9. The surface grinder with automatic loading and unloading according to claim 8, characterized in that: The mobile unloading mechanism (3) comprises a square mobile seat (31), the bottom of the square mobile seat (31) is slidably connected to the support base (1), the middle of the bottom surface of the square mobile seat (31) is connected to a hydraulic lifting column (32), the bottom of the hydraulic lifting column (32) is connected to an electromagnetic suction cup (33), and a telescopic cylinder (34) is provided on one side of the support base (1), and the telescopic shaft of the telescopic cylinder (34) is connected to the square mobile seat (31).

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