Hardware tool production corner grinding device

Abstract

A corner grinding device for hardware tool production comprises a workpiece lifting and moving mechanism and a fixed grinding mechanism, the fixed grinding mechanism is arranged below the workpiece lifting and moving mechanism, and the workpiece lifting and moving mechanism comprises a first lifting block and a second lifting block; by arranging the first lifting block and the second lifting block with the adjustable relative distance and the adjustable relative angle, the hardware tool can be fixed between the first lifting block and the second lifting block in the posture that the corners of the hardware tool face downwards, and the relative distance between the second lifting block and the first lifting block can be independently adjusted; therefore, the position of the corner can be controlled to correspond to the position of the grinding wheel, the hardware tool is fixed, meanwhile, accurate positioning of the corner position is achieved, it is ensured that the corner can accurately correspond to the position of the grinding wheel, and the corner grinding efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of hardware tool processing equipment, and specifically refers to a corner grinding device for the production of hardware tools. Background Art

[0002] Hardware tools refer to various metal devices made of metals such as iron and steel through physical processing such as forging, rolling, cutting, and grinding, such as wrenches, pliers, etc.; during the production process of hardware tools, the sharp corners need to be ground. Commonly used equipment is a grinding machine or a hand-held angle grinder. These devices need to fix the hardware tools when grinding the corners. Since the model specifications of hardware tools are extremely diverse and their shapes and sizes are different, when grinding different hardware tools, the fixing effect is not stable enough.

[0003] In addition, the existing grinding equipment needs to locate the corners of the hardware tools, and the positioning effect is also affected by the shape of the hardware tools. Therefore, a corner grinding device that can accurately locate the corner positions of hardware tools and achieve stable fixation is needed. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the present invention provides a corner grinding device for the production of hardware tools to solve at least partially the above technical problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a corner grinding device for the production of hardware tools, including a workpiece lifting and moving mechanism and a fixed grinding mechanism. The fixed grinding mechanism is arranged below the workpiece lifting and moving mechanism. The workpiece lifting and moving mechanism includes a first lifting block and a second lifting block. The distance between the first lifting block and the second lifting block is adjustable, and the angle between the two opposite surfaces of the first lifting block and the second lifting block is adjustable. The first lifting block and the second lifting block are configured to fix the hardware tool; the workpiece lifting and moving mechanism further includes a sliding rod and a telescopic rod. The sliding rod is fixedly arranged relative to the telescopic rod. The second lifting block and the first lifting block are arranged on the sliding rod. Sliding shoes are provided on both the second lifting block and the first lifting block. The second lifting block and the first lifting block are slidably arranged on the sliding rod through the sliding shoes. The first lifting block and the second lifting block are respectively connected to the free ends of the two telescopic rods; the fixed grinding mechanism includes a grinding wheel. The grinding wheel is arranged below the first lifting block and the second lifting block, and the grinding wheel is configured to grind the corners of the hardware tool.

[0006] Further, the workpiece lifting and moving mechanism further includes a lifting bracket, on which the sliding rod and the telescopic rod are both arranged. The fixed end of the telescopic rod is connected to the lifting bracket. A compression spring is arranged on the lifting bracket. The compression spring is sleeved outside the telescopic rod, and both ends of the compression spring are respectively connected to both ends of the telescopic rod. An adjustment knob is arranged on the fixed end of the telescopic rod, and the adjustment knob is configured to adjust the limit telescopic amount of the telescopic rod.

[0007] Further, the workpiece lifting and moving mechanism further includes a magnetic attraction dragging mechanism, which is arranged on the first lifting block. The magnetic attraction dragging mechanism includes a threaded slider and an electromagnet. The electromagnet is fixedly arranged on the threaded slider. A surface through groove is arranged on the first lifting block, and the threaded slider is slidably arranged in the surface through groove.

[0008] Further, the magnetic attraction dragging mechanism further includes a rotating screw rod and a dragging motor, which are both arranged on the first lifting block. The rotating screw rod is rotatably connected to the first lifting block. The rotating screw rod is in threaded engagement with the threaded slider. The rotating screw rod is connected to the output rotating shaft of the dragging motor, and the dragging motor is configured to drive the threaded slider to slide in the surface through groove through the rotating screw rod.

[0009] Further, the fixed grinding mechanism further includes a telescopic support and a grinding spring. The grinding wheel is arranged on the telescopic support. The telescopic support is rotatably connected to the grinding wheel. The telescopic support is configured to adjust the height of the grinding wheel, and the grinding spring is arranged at the bottom of the telescopic support.

[0010] Further, a transmission belt and a grinding motor are arranged on the telescopic support. A grinding wheel end is arranged on the grinding wheel. The central axes of the grinding wheel and the grinding wheel end coincide. The transmission belt is arranged on the grinding wheel end and the grinding motor, and the grinding motor is configured to drive the grinding wheel end to rotate through the transmission belt.

[0011] Further, an installation frame is further included. The workpiece lifting and moving mechanism and the fixed grinding mechanism are both arranged on the installation frame. Installation pins arranged in a rectangular array are arranged at the bottom end of the lifting bracket, and the installation pins are pinned on the installation frame.

[0012] Further, surface grooves are arranged on the surface of the first lifting block facing the second lifting block, and the surface grooves are symmetrically arranged on both sides of the surface through groove.

[0013] Compared with the prior art, the present invention has the following advantages: In the present invention, by providing a first lifting block and a second lifting block whose relative distance and relative angle are both adjustable, a hardware tool can be fixed between the first lifting block and the second lifting block with its corner facing downwards. Since the relative distance between the second lifting block and the first lifting block can be adjusted independently, the position of the corner can be controlled to correspond to the position of the grinding wheel. While fixing the hardware tool, precise positioning of the corner position is achieved, ensuring that the corner can accurately correspond to the position of the grinding wheel and improving the grinding efficiency of the corner.

[0014] In the present invention, the distance and angle between the first lifting block and the second lifting block are both adjustable, which is applicable to grinding the corners of various structural types and various shapes of hardware tools. Brief Description of the Drawings

[0015] Figure 1 It is a three-dimensional view of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 2 It is a front view of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 3 It is a top view of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 4 It is a front view of a workpiece lifting and moving mechanism of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 5 It is a three-dimensional view of a workpiece lifting and moving mechanism of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 6 It is a front view of a fixed grinding mechanism of a corner grinding device for the production of hardware tools proposed in an embodiment of the present invention; Figure 7 is Figure 4 an enlarged view of part I in Figure 8 is Figure 5 an enlarged view of part II in Figure 9 is Figure 5 an enlarged view of part III in

[0016] Among them, 100 is the workpiece lifting and moving mechanism, 200 is the fixed grinding mechanism, 300 is the installation frame, 101 is the first lifting block, 102 is the second lifting block, 103 is the lifting bracket, 104 is the magnetic drag mechanism, 105 is the surface groove, 106 is the surface through groove, 107 is the sliding rod, 108 is the telescopic rod, 109 is the installation pin, 110 is the compression spring, 111 is the adjustment knob, 112 is the threaded slider, 113 is the electromagnet, 114 is the rotating screw rod, 115 is the drag motor, 116 is the sliding shoe, 201 is the telescopic support, 202 is the grinding spring, 203 is the grinding wheel, 204 is the transmission belt, 205 is the grinding motor, and 206 is the grinding wheel end.

[0017] The attached drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the attached drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0020] Such as Figures 1-9As shown in the figure, this embodiment is used in the production process of hardware tools, specifically for the grinding process of the edges and corners of hardware tools. Existing grinding equipment is difficult to effectively fix various hardware tools, and at the same time, it is impossible to accurately position the edges and corners of hardware tools, resulting in low grinding efficiency. Therefore, the grinding device proposed in this embodiment is provided with a workpiece lifting and moving mechanism 100 for fixing hardware tools and positioning their edges and corners. The workpiece lifting and moving mechanism 100 includes a first lifting block 101, a second lifting block 102, a sliding rod 107, and a telescopic rod 108. The sliding rod 107 and the telescopic rod 108 are both fixedly arranged, and the sliding rod 107 and the telescopic rod 108 are perpendicular to each other. The first lifting block 101 and the second lifting block 102 are oppositely arranged on the sliding rod 107, and the first lifting block 101 and the second lifting block 102 can freely slide on the sliding rod 107 by means of sliding shoes 116. The first lifting block 101 and the second lifting block 102 are both connected to the telescopic rod 108, and the telescopic rod 108 can control the limit positions of the first lifting block 101 and the second lifting block 102. At the same time, this embodiment is provided with a fixed grinding mechanism 200, and the fixed grinding mechanism 200 includes a grinding wheel 203 that can be lifted. The grinding wheel 203 is arranged below the first lifting block 101 and the second lifting block 102 for grinding the edges and corners of hardware tools.

[0021] In order to be able to fix different hardware tools, the distance between the first lifting block 101 and the second lifting block 102 in this embodiment can be adjusted. During use, the telescopic rod 108 is used to adjust the limit moving positions of the first lifting block 101 and the second lifting block 102, so that the maximum distance between the first lifting block 101 and the second lifting block 102 is less than the width of the hardware tool. Placing the hardware tool between the first lifting block 101 and the second lifting block 102 can achieve the fixation of the hardware tool. Since the positions of the first lifting block 101 and the second lifting block 102 can be adjusted separately by the telescopic rod 108, when fixing some hardware tools with asymmetric structures, the moving distances of the first lifting block 101 and the second lifting block 102 can be set to different sizes, so as to make the center of the hardware tool correspond to the position of the grinding wheel 203.

[0022] At the same time, the angle between the two opposite surfaces of the first lifting block 101 and the second lifting block 102 in this embodiment can be adjusted. During use, it can be adjusted according to the angle between the adjacent two side surfaces of the edge and corner of the hardware tool to be ground, so that the adjacent two side surfaces of the edge and corner of the hardware tool can closely adhere to the two opposite surfaces between the first lifting block 101 and the second lifting block 102. At the same time, this edge and corner protrudes from below the first lifting block 101 and the second lifting block 102 and corresponds to the position of the grinding wheel 203.

[0023] In this embodiment, the first lifting block 101 and the second lifting block 102 are adjustable in relative distance and relative angle, so that the hardware tools can be fixed between the first lifting block 101 and the second lifting block 102 with the corners facing downward. Since the relative distance between the second lifting block 102 and the first lifting block 101 can be adjusted separately, the position of the corners can be controlled to correspond to the position of the grinding wheel 203, so that the corners can be accurately positioned while the hardware tools are fixed, ensuring that the corners can correspond accurately to the positions of the grinding wheel 203, thereby improving the grinding efficiency of the corners.

[0024] At the same time, the distance and angle between the first lifting block 101 and the second lifting block 102 proposed in this embodiment can be adjusted, which is suitable for grinding the edges and corners of hardware tools with various structural types and shapes.

[0025] In this embodiment, the workpiece lifting and moving mechanism 100 also includes a lifting bracket 103, and the sliding rod 107 and the telescopic rod 108 are both arranged on the lifting bracket 103. The fixed end of the telescopic rod 108 is connected to the lifting bracket 103, and a compression spring 110 is provided on the lifting bracket 103. The compression spring 110 is sleeved on the outside of the telescopic rod 108, and the two ends of the compression spring 110 are respectively connected to the two ends of the telescopic rod 108. An adjusting knob 111 is provided on the fixed end of the telescopic rod 108, and the adjusting knob 111 is configured to adjust the maximum telescopic amount of the telescopic rod 108.

[0026] In this embodiment, a compression spring 110 is arranged on the outside of the telescopic rod 108, and the two ends of the compression spring 110 are respectively connected to the fixed end and the movable end of the telescopic rod 108. When the first lifting block 101 and the second lifting block 102 are compressed, the length of the compression spring 110 is compressed. When grinding some lightweight hardware tools, the telescopic rod 108 can be omitted and the hardware tools can be directly placed between the first lifting block 101 and the second lifting block 102. The weight of the hardware tools themselves acts on the first lifting block 101 and the second lifting block 102, and then is transferred to the compression spring 110. The compression spring 110 is compressed and shortened to generate elastic force. When the component force generated by the elastic force is balanced with the gravity on the hardware tools, the first lifting block 101 and the second lifting block 102 clamp the hardware tools between the first lifting block 101 and the second lifting block 102 to fix the hardware tools. No multiple adjustments are required during use, and the hardware tools are suitable for small hardware tools of various specifications and sizes.

[0027] For some heavy hardware tools, the elastic force generated by the compression of the compression spring 110 is not enough to support the weight of the hardware tools. At this time, the maximum extension and contraction amount of the telescopic rod 108 can be adjusted by adjusting the knob 111, thereby rigidly fixing the hardware tools. This is suitable for heavy hardware tools and improves the versatility of the workpiece lifting and moving mechanism 100.

[0028] In this embodiment, the workpiece lifting and moving mechanism 100 further includes a magnetic attraction and dragging mechanism 104. The magnetic attraction and dragging mechanism 104 is arranged on the first lifting block 101. The magnetic attraction and dragging mechanism 104 includes a threaded slider 112 and an electromagnet 113. The electromagnet 113 is fixedly arranged on the threaded slider 112. The electromagnet 113 can magnetically adsorb the hardware tool, adsorbing the hardware tool on the surface of the first lifting block 101, thereby improving the fixing effect of the hardware tool. When in use, the hardware tool is adsorbed on the first lifting block 101 by the electromagnet 113 for grinding, which can avoid the sliding and offset of the hardware tool due to force, thereby ensuring the grinding effect of the hardware tool.

[0029] At the same time, a surface through groove 106 is arranged on the first lifting block 101. The threaded slider 112 is slidably arranged in the surface through groove 106. The threaded slider 112 and the electromagnet 113 can slide in the surface through groove 106. When the threaded slider 112 slides, the electromagnet 113 simultaneously drives the adsorbed hardware tool to slide on the first lifting block 101, so that the corners of the hardware tool pass over the grinding wheel 203, realizing the comprehensive grinding of the corners of the hardware tool, improving the grinding effect, without the need for workers to manually align the corners and manually move the hardware tool for grinding, improving the grinding efficiency and reducing the use of manpower.

[0030] In this embodiment, the magnetic attraction and dragging mechanism 104 further includes a rotating screw 114 and a dragging motor 115. The rotating screw 114 and the dragging motor 115 are both arranged on the first lifting block 101. The rotating screw 114 is rotatably connected to the first lifting block 101. The rotating screw 114 is in threaded engagement with the threaded slider 112. The rotating screw 114 is connected to the output rotating shaft of the dragging motor 115. The dragging motor 115 is configured to drive the threaded slider 112 to slide in the surface through groove 106 through the rotating screw 114. In the specific use of this embodiment, first, the hardware tool is placed between the first lifting block 101 and the second lifting block 102. After the position of the hardware tool is stable and no longer moves, alternating current is passed into the electromagnet 113. After the electromagnet 113 is powered on, a magnetic field is generated to firmly adsorb the hardware tool on the threaded slider 112. At this time, the grinding wheel 203 can be started to grind the corners of the hardware tool.

[0031] After the grinding wheel 203 is started, it can only grind one position. In order to achieve the full-edge grinding of the edges and corners of the hardware tool, it is necessary to start the dragging motor 115. When the dragging motor 115 works, it drives the rotating screw 114 to rotate. When the rotating screw 114 rotates, it drives the threaded slider 112 engaged with it to move on the rotating screw 114 along the axis of the rotating screw 114. At this time, the threaded slider 112 and the electromagnet 113 drive the hardware tool to move in the surface through groove 106. During the movement, all the edges of the hardware tool pass through the grinding wheel 203, so that the grinding wheel 203 can grind each position of the edges and corners of the hardware tool in turn, ensuring the grinding effect.

[0032] In this embodiment, the fixed grinding mechanism 200 includes a telescopic support 201 and a grinding spring 202. The telescopic support 201 can be telescoped in the vertical direction. The grinding spring 202 is arranged at the bottom of the telescopic support 201 for buffering. The grinding wheel 203 is arranged on the telescopic support 201 to grind the edges and corners of the hardware tool.

[0033] When this embodiment is specifically used, it is necessary to process hardware tools of different sizes and specifications. After the hardware tools of different specifications are fixed between the first lifting block 101 and the second lifting block 102, the distances between the edges and corners and the grinding wheel 203 are not the same. Since the telescopic support 201 can be telescoped in the vertical direction to drive the grinding wheel 203 to lift and lower, it can be adjusted so that the grinding wheel 203 always remains in contact with the edges and corners. At the same time, a grinding spring 202 is arranged at the bottom of the telescopic support 201. The elastic force generated by the grinding spring 202 can press the grinding wheel 203 tightly against the edges and corners, ensuring that the grinding wheel 203 does not rotate idly and improving the grinding effect, which is suitable for grinding hardware tools of various sizes and specifications.

[0034] In this embodiment, a transmission belt 204 and a grinding motor 205 are arranged on the telescopic support 201. A grinding wheel end 206 is arranged on the grinding wheel 203. The central axes of the grinding wheel 203 and the grinding wheel end 206 coincide. The transmission belt 204 is arranged on the grinding wheel end 206 and the grinding motor 205. The grinding motor 205 is configured to drive the grinding wheel end 206 to rotate through the transmission belt 204. The torque generated when the grinding motor 205 works is transmitted to the grinding wheel end 206 through the transmission belt 204. Since the grinding wheel end 206 and the grinding wheel 203 are connected together, the grinding wheel 203 rotates after receiving the torque, so as to grind the edges and corners of the hardware tool.

[0035] In this embodiment, the drive belt 204 and the grinding motor 205 are both arranged on the telescopic support 201, so that the drive belt 204, the grinding motor 205, the grinding wheel end 206 and the grinding wheel 203 can be lifted and lowered synchronously, thereby stably driving the grinding wheel 203 to rotate and ensuring the grinding efficiency of the grinding wheel 203 on the edges and corners of the hardware tools.

[0036] In this embodiment, it further includes a mounting frame 300. The workpiece lifting and moving mechanism 100 and the fixed grinding mechanism 200 are both arranged on the mounting frame 300. The bottom end of the lifting support 103 is provided with mounting pins 109 arranged in a rectangular array. The mounting pins 109 are pinned on the mounting frame 300. By fixing the workpiece lifting and moving mechanism 100 and the fixed grinding mechanism 200 on the mounting frame 300, the structural stability of the grinding mechanism in this embodiment is improved. At the same time, the workpiece lifting and moving mechanism 100 and the fixed grinding mechanism 200 can be disassembled from the mounting frame 300, which is convenient for overhaul and replacement of faulty components.

[0037] In this embodiment, a surface groove 105 is provided on the surface of the first lifting block 101 facing the second lifting block 102. When in use, the hardware tool is fixed between the first lifting block 101 and the second lifting block 102. At this time, the hardware tool is in contact with the first lifting block 101. A surface through groove 106 is provided on the first lifting block 101, which can reduce the contact area between the hardware tool and the surface of the first lifting block 101, thereby reducing the friction force between the first lifting block 101 and the hardware tool, and further reducing the resistance when the threaded slider 112 drives the hardware tool to move in the surface through groove 106, facilitating the movement of the hardware tool relative to the grinding wheel 203, and thus reducing energy consumption and working noise.

[0038] The surface grooves 105 proposed in this embodiment are symmetrically arranged on both sides of the surface through groove 106. When the threaded slider 112 slides in the surface through groove 106, it ensures that the friction forces on both sides of the hardware tool in the surface through groove 106 are approximately equal, balances the torques on both sides of the hardware tool, and avoids deflection of the hardware tool on the first lifting block 101 due to unbalanced forces, so as to ensure that the edges and corners of the hardware tool are always in contact with the grinding wheel 203 and improve the grinding efficiency of the edges and corners.

[0039] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill 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, and the scope of the present invention is defined by the appended claims and their equivalents.

[0041] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A corner grinding device for the production of hardware tools, characterized in that: It includes a workpiece lifting and moving mechanism (100), and the workpiece lifting and moving mechanism (100) includes a first lifting block (101) and a second lifting block (102). The distance between the first lifting block (101) and the second lifting block (102) is adjustable, the included angle between the opposite two surfaces of the first lifting block (101) and the second lifting block (102) is adjustable, and the first lifting block (101) and the second lifting block (102) are configured to fix the hardware tool. The workpiece lifting and moving mechanism (100) further includes a sliding rod (107) and a telescopic rod (108). The sliding rod (107) is fixedly arranged relative to the telescopic rod (108). The second lifting block (102) and the first lifting block (101) are arranged on the sliding rod (107). Sliding shoes (116) are provided on both the second lifting block (102) and the first lifting block (101). The second lifting block (102) and the first lifting block (101) are both slidably arranged on the sliding rod (107) through the sliding shoes (116). The first lifting block (101) and the second lifting block (102) are respectively connected to the free ends of the two telescopic rods (108).

2. The corner grinding device for the production of hardware tools according to claim 1, characterized in that: It further includes a fixed grinding mechanism (200), and the fixed grinding mechanism (200) is arranged below the workpiece lifting and moving mechanism (100); the fixed grinding mechanism (200) includes a grinding wheel (203), and the grinding wheel (203) is arranged below the first lifting block (101) and the second lifting block (102). The grinding wheel (203) is configured to grind the edges and corners of the hardware tool. The workpiece lifting and moving mechanism (100) further includes a lifting support (103), and both the sliding rod (107) and the telescopic rod (108) are arranged on the lifting support (103). The fixed end of the telescopic rod (108) is connected to the lifting support (103). A compression spring (110) is provided on the lifting support (103). The compression spring (110) is sleeved outside the telescopic rod (108). Both ends of the compression spring (110) are respectively connected to both ends of the telescopic rod (108). An adjusting knob (111) is provided on the fixed end of the telescopic rod (108), and the adjusting knob (111) is configured to adjust the extreme telescopic amount of the telescopic rod (108).

3. The edge grinding device for the production of hardware tools according to claim 1, characterized in that: The workpiece lifting and moving mechanism (100) further includes a magnetic attraction dragging mechanism (104), and the magnetic attraction dragging mechanism (104) is arranged on the first lifting block (101). The magnetic attraction dragging mechanism (104) includes a threaded slider (112) and an electromagnet (113), and the electromagnet (113) is fixedly arranged on the threaded slider (112). A surface through groove (106) is provided on the first lifting block (101), and the threaded slider (112) is slidably arranged in the surface through groove (106).

4. The edge grinding device for the production of hardware tools according to claim 3, wherein: The magnetic attraction dragging mechanism (104) further includes a rotating screw rod (114) and a dragging motor (115). The rotating screw rod (114) and the dragging motor (115) are both arranged on the first lifting block (101). The rotating screw rod (114) is rotatably connected to the first lifting block (101). The rotating screw rod (114) is in threaded engagement with the threaded slider (112). The rotating screw rod (114) is connected to the output rotating shaft of the dragging motor (115). The dragging motor (115) is configured to drive the threaded slider (112) to slide in the surface through groove (106) through the rotating screw rod (114).

5. The corner grinding device for the production of hardware tools according to claim 2, characterized in that: The fixed grinding mechanism (200) further includes a telescopic support (201) and a grinding spring (202). The grinding wheel (203) is arranged on the telescopic support (201). The telescopic support (201) is rotatably connected to the grinding wheel (203). The telescopic support (201) is configured to adjust the height of the grinding wheel (203). The grinding spring (202) is arranged at the bottom of the telescopic support (201).

6. The edge grinding device for the production of hardware tools according to claim 5, characterized in that: A transmission belt (204) and a grinding motor (205) are arranged on the telescopic support (201). A grinding wheel end (206) is arranged on the grinding wheel (203). The central axes of the grinding wheel (203) and the grinding wheel end (206) coincide. The transmission belt (204) is arranged on the grinding wheel end (206) and the grinding motor (205). The grinding motor (205) is configured to drive the grinding wheel end (206) to rotate through the transmission belt (204).

7. The edge grinding device for the production of hardware tools according to claim 2, characterized in that: An installation frame (300) is further included. The workpiece lifting and moving mechanism (100) and the fixed grinding mechanism (200) are both arranged on the installation frame (300). Rectangular array arranged installation pins (109) are arranged at the bottom end of the lifting support (103). The installation pins (109) are pinned on the installation frame (300).

8. The corner grinding device for the production of hardware tools according to claim 3, wherein: A surface groove (105) is arranged on the surface of the first lifting block (101) facing the second lifting block (102). The surface groove (105) is symmetrically arranged on both sides of the surface through groove (106).

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