Edge burr grinding equipment for die-casting blank

Abstract

The invention relates to the technical field of die-casting blank grinding, and discloses die-casting blank edge burr grinding equipment which comprises a grinding device, the bottom of the grinding device is connected with a grinding block, the grinding device comprises a pushing device, the bottom of the pushing device is connected with a sliding device, and when the pushing device moves downwards, the sliding device is connected with the grinding block. The driving device can drive the sliding device to move, the top of the sliding device is fixedly connected with a clamping device, the clamping device is used for stably clamping a blank and fixing the blank to the position below the grinding block for grinding, and the clamping device can horizontally move along with movement of the sliding device. Therefore, the die-casting blank fixed in the center of the clamping device is gradually moved to the position below the polishing block, and edge burrs are polished.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting blank grinding, in particular to an edge burr grinding device for a die-casting blank. Background Art

[0002] In the die-casting process, burrs or flash often appear on the edges of the blank after molding. These burrs not only affect the appearance quality of the product, but may also cause safety hazards to subsequent assembly and use. Therefore, removing burrs from the edges of die-cast blanks is an indispensable part of the production process. Although the existing automated grinding equipment can improve efficiency, it has a complex structure and high cost, and some equipment fails to effectively isolate the operator from the grinding area during the grinding process, and there are still certain safety risks. Based on this, the present invention proposes an edge burr grinding device for die-cast blanks to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide an edge burr grinding device for die-casting blanks to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an edge burr grinding device for die-casting blanks, comprising a grinding device, a grinding block is connected to the bottom of the grinding device, the grinding device comprises a pushing device, a sliding device is connected to the bottom of the pushing device, when the pushing device moves downward, it can drive the sliding device to move, the top of the sliding device is fixedly connected to a clamping device, the clamping device is used to fix the die-casting blank to be ground, the clamping device can move horizontally with the movement of the sliding device, so as to gradually move the die-casting blank fixed in the center of the clamping device to the bottom of the grinding block, thereby completing the grinding of the edge burrs.

[0005] As a preferred technical solution of the present invention, the pushing device includes two support frames, a motor is fixedly connected to the center of the two support frames, a polygonal block is fixedly connected to the top front end of the two support frames, an elliptical plate is movably connected to the hollow center of the polygonal block, and the bottom end of the elliptical plate is movably connected to the first rotating shaft.

[0006] As a preferred technical solution of the present invention, both ends of the first rotating shaft are movably connected with a first bending rod, the bottom ends of the two first bending rods are movably connected with a first telescopic rod, the outer surface of the bottom of the first telescopic rod is fixedly connected with a sliding device, the bottom end of the first telescopic rod is movably connected with a grinding block, both sides of the bottom of the two support frames are correspondingly connected with L-shaped blocks, and the bottoms of the two L-shaped blocks are correspondingly connected with movable blocks.

[0007] As a preferred technical solution of the present invention, the movable block includes a concave block, a second rotating shaft is movably connected to the groove at the top of the concave block, a second curved rod is fixedly connected to the central outer surface of the second rotating shaft, one end of the second curved rod is movably connected to a sliding wheel, the other end of the second curved rod is movably connected to the third rotating shaft at the hollow part, the bottom end of the third rotating shaft is fixedly connected to a pushing block, and a sliding device is fixedly connected to the inner side of the pushing block.

[0008] As a preferred technical solution of the present invention, the sliding device includes a base plate, both ends of the top of the base plate are fixedly connected to long columns, the outer surfaces of the tops of the two long columns are movably connected to sliding long plates, and the center top of the sliding long plate is fixed to the outer surface of the bottom of the first telescopic rod, and the inner two ends of the sliding long plate are fixedly connected to the tops of two L-shaped blocks.

[0009] As a preferred technical solution of the present invention, two first sliding rods are fixedly connected to the top of the base plate, the outer surfaces of the two first sliding rods are movably connected with sliding blocks, and the grooves at both ends of the two sliding blocks are fixedly connected to the inner side of the pushing block, the tops of the two sliding blocks are fixedly connected to the second telescopic rods, and the tops of the two second telescopic rods are fixedly connected to the clamping devices.

[0010] As a preferred technical solution of the present invention, the clamping device includes a hollow block, and cylinders are connected through the hollow parts at both ends of the hollow block. The two cylinder output shaft ends are fixedly connected with clamping blocks, and the inner sides of the two clamping blocks are correspondingly connected with H-shaped blocks.

[0011] As a preferred technical solution of the present invention, a long rod is fixedly connected to the central bottom of the H-shaped block, a gear is movably connected to the outer surface of the long rod, racks are staggered and meshed on both sides of the outer surface of the gear, and the bottoms of the two racks are fixedly connected to the raised parts of the bottoms of the two clamping blocks, and the bottom ends of the two clamping blocks are movably connected to a second sliding rod, and the bottom of the second sliding rod is fixedly connected to the top of the fixedly connected hollow block.

[0012] Compared with the prior art, the present invention has the following beneficial effects: A device for grinding burrs on the edges of die-cast blanks. A motor is arranged on the inner side of the centers of two support frames. The motor can be used to drive an elliptical plate movably connected at the center groove of a polygonal block to deviate downward. The bottom end of the elliptical plate is movably connected to two first bending rods, and the bottoms of the first bending rods are respectively connected to the tops of first telescopic rods. When the elliptical plate moves downward, the first telescopic rod is driven to move downward by bending the first bending rod, thereby pulling a sliding long plate connected to the outer surface of the bottom of the first telescopic rod to move forward. Finally, the reciprocating motion of the sliding device facilitates manual placement of the blank at the center position of a clamping device, thereby realizing automatic positioning and clamping of the blank.

[0013] A device for grinding burrs on the edges of die-cast blanks. The device arranges the inner sides of a pushing block at the two ends of a second telescopic rod. When the second telescopic rod moves, the pushing block drives a third rotating shaft to move back and forth at a hollow portion of a second curved rod, thereby causing the second curved rod to deviate to one side. A sliding wheel is connected to the other end of the second curved rod, and the sliding wheel contacts the bottom of an L-shaped block. When the second curved rod deviates, the sliding wheel squeezes the bottom of the L-shaped block, causing the L-shaped block to slide upward, and the sliding device moves forward accordingly, away from the bottom of the grinding block, thereby preventing people from being injured.

[0014] A device for grinding burrs on the edges of die-casting blanks, wherein an L-shaped block is fixedly connected to the inner side of a sliding long plate so that the sliding long plate can slide up and down along the outer surface of a long column, a sliding block is movably connected to the top of the first sliding rod, and both ends of the sliding block are fixedly connected to a push block, and when the sliding block slides horizontally, it drives the push block to move, thereby realizing the linkage between the various components of the device. The second telescopic rod is driven by a motor to drive the clamping device fixedly connected to its top to move up and down, thereby adjusting the grinding height of the blank placed in the center of the clamping device to meet the grinding requirements of blanks of different sizes.

[0015] The invention discloses an edge burr grinding device for die-casting blanks. Two cylinder output shafts are arranged at the rear ends of two clamping blocks so that the two cylinders can drive the two clamping blocks to slide horizontally along the outer surface of a second sliding rod. When the two clamping blocks move toward the center at the same time, two racks on the raised parts of the bottom of the clamping blocks will mesh with the gears to drive the rotation of the gears. The meshing transmission between the racks and the gears can not only avoid the jamming phenomenon after long-term use, but also can flexibly and quickly drive the two clamping blocks to move toward the center, thereby firmly clamping the blank and fixing it under the grinding block for grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the pushing device in the present invention; Figure 3 A schematic diagram of the front-end connection relationship of the polygon block in the present invention; Figure 4 It is a schematic diagram of the activity block in the present invention; Figure 5 It is a schematic diagram of the sliding device in the present invention; Figure 6 It is a schematic diagram of the interior of the sliding device in the present invention; Figure 7 It is a schematic diagram of the clamping device in the present invention; Figure 8 It is a schematic diagram of the internal connection relationship of the hollow block in the present invention.

[0017] In the figure: 1, grinding device; 11, pushing device; 111, supporting frame; 112, motor; 113, polygonal block; 114, elliptical plate; 115, first rotating shaft; 116, first bending rod; 117, first telescopic rod; 118, L-shaped block; 119, movable block; 12, sliding device; 121, bottom plate; 122, long column; 123, sliding long plate; 124, first sliding rod; 125, sliding block; 126. Second telescopic rod; 13. Clamping device; 131. Hollow block; 132. Cylinder; 133. Clamping block; 134. H-shaped block; 135. Long rod; 136. Gear; 137. Rack; 138. Second sliding rod; 2. Grinding block; 1191. Concave block; 1192. Second rotating shaft; 1193. Second bending rod; 1194. Sliding wheel; 1195. Third rotating shaft; 1196. Pushing block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-2 , a device for grinding burrs on the edges of die-cast blanks, comprising a grinding device 1, a grinding block 2 is provided at the bottom of the grinding device 1, and the bottom of the grinding device 1 is connected to the top of the grinding block 2, the grinding device 1 comprises a pushing device 11, a sliding device 12 is provided at the bottom of the pushing device 11, and the bottom of the pushing device 11 is connected to the top of the sliding device 12, when the pushing device 11 moves downward, it can drive the sliding device 12 to move, the top of the sliding device 12 is fixedly connected with a clamping device 13, the clamping device 13 is used to fix the die-cast blank to be ground, the clamping device 13 can move horizontally with the movement of the sliding device 12, so that the die-cast blank fixed at the center of the clamping device 13 is gradually moved to the bottom of the grinding block 2, and the grinding of the edge burrs is completed.

[0020] Embodiment 2: Based on Embodiment 1, Figure 3-6As shown, the pushing device 11 includes two support frames 111, a motor 112 is arranged at the center of the two support frames 111, and the center of the two support frames 111 is fixedly connected to both ends of the motor 112, a polygonal block 113 is arranged at the top front end of the two support frames 111, and the top front end of the two support frames 111 is fixedly connected to the rear end of the polygonal block 113, an elliptical plate 114 is arranged at the central hollow part of the polygonal block 113, and the central hollow part of the polygonal block 113 is movably connected to the top of the elliptical plate 114, a first rotating shaft 115 is arranged at the bottom end of the elliptical plate 114, and the bottom end of the elliptical plate 114 is movably connected to the center of the first rotating shaft 115.

[0021] Both ends of the first rotating shaft 115 are provided with a first bending rod 116, and both ends of the first rotating shaft 115 are movably connected to the top of the first bending rod 116, the bottom ends of the two first bending rods 116 are provided with a first telescopic rod 117, and the bottom ends of the two first bending rods 116 are movably connected to the top of the first telescopic rod 117, the bottom outer surface of the first telescopic rod 117 is provided with a sliding device 12, and the bottom outer surface of the first telescopic rod 117 is fixedly connected to the top of the sliding device 12, the bottom end of the first telescopic rod 117 is provided with a grinding block 2, and the bottom end of the first telescopic rod 117 is movably connected to the top of the grinding block 2, and both sides of the bottom of the two supporting frames 111 are provided with L-shaped blocks 118, and both sides of the bottom of the two supporting frames 111 are correspondingly connected to the inner side of the L-shaped block 118, and the two The bottom of each L-shaped block 118 is provided with a movable block 119. By arranging a motor 112 at the inner side of the center of the two support frames 111, the elliptical plate 114 movably connected at the center groove of the polygonal block 113 can be deflected downward by the drive of the motor 112. The bottom end of the elliptical plate 114 is movably connected to two first curved rods 116, and the bottoms of the first curved rods 116 are respectively connected to the tops of the first telescopic rods 117. When the elliptical plate 114 moves downward, the first curved rods 116 are bent to drive the first telescopic rod 117 to move downward, thereby pulling the sliding long plate 123 connected to the outer surface of the bottom of the first telescopic rod 117 to move forward, and finally the reciprocating motion of the sliding device 12 facilitates the manual placement of the blank at the center position of the clamping device 13, thereby realizing the automatic positioning and clamping of the blank. The bottoms of the two L-shaped blocks 118 are correspondingly connected to the tops of the movable blocks 119.

[0022] The movable block 119 includes a concave block 1191, a second rotating shaft 1192 is arranged at the top groove of the concave block 1191, and the top groove of the concave block 1191 is movably connected with the two ends of the second rotating shaft 1192, a second curved rod 1193 is arranged on the central outer surface of the second rotating shaft 1192, and the central outer surface of the second rotating shaft 1192 is fixedly connected with the bending part of the second curved rod 1193, a sliding wheel 1194 is arranged at one end of the second curved rod 1193, and one end of the second curved rod 1193 is movably connected with the bottom end of the sliding wheel 1194, a third rotating shaft 1195 is arranged at the hollow part of the other end of the second curved rod 1193, and the hollow part of the other end of the second curved rod 1193 is movably connected with the top end of the third rotating shaft 1195, and a pushing block 1196 is arranged at the bottom end of the third rotating shaft 1195, The bottom end of the third rotating shaft 1195 is fixedly connected to one end of the pushing block 1196. The inside of the pushing block 1196 is provided with a sliding device 12. By providing the inside of the pushing block 1196 at both ends of the second telescopic rod 126, when the second telescopic rod 126 moves, the pushing block 1196 can drive the third rotating shaft 1195 to move back and forth in the hollow part of the second curved rod 1193, so that the second curved rod 1193 is offset to one side. The other end of the second curved rod 1193 is connected with a sliding wheel 1194, and the sliding wheel 1194 contacts the bottom of the L-shaped block 118. When the second curved rod 1193 is offset, the sliding wheel 1194 squeezes the bottom of the L-shaped block 118, so that the L-shaped block 118 slides upward, and the sliding device 12 has moved forward out of the bottom of the grinding block 2, so as to avoid accidental contact with the grinding block 2 when the grinding block 2 is manually taken. The inside of the pushing block 1196 is fixedly connected to both ends of the sliding device 12.

[0023] The sliding device 12 includes a bottom plate 121, both ends of the top of the bottom plate 121 are provided with long columns 122, and both ends of the top of the bottom plate 121 are fixedly connected to the bottom of the long columns 122, and the top outer surfaces of the two long columns 122 are provided with sliding long plates 123, and the top outer surfaces of the two long columns 122 are movably connected to both ends of the sliding long plates 123, and the center top of the sliding long plates 123 is fixed to the bottom outer surface of the first telescopic rod 117, and the inner two ends of the sliding long plates 123 are fixedly connected to the tops of the two L-shaped blocks 118.

[0024] Two first sliding rods 124 are arranged on the top of the bottom plate 121, and the top of the bottom plate 121 is fixedly connected to the bottom of the two first sliding rods 124, and sliding blocks 125 are arranged on the outer surfaces of the two first sliding rods 124, and the outer surfaces of the two first sliding rods 124 are movably connected to the grooves at the bottom of the sliding blocks 125, and the grooves at both ends of the two sliding blocks 125 are fixedly connected to the inner side of the pushing block 1196, and the second telescopic rod 126 is arranged on the top of the two sliding blocks 125, and the tops of the two sliding blocks 125 are connected to the second telescopic rod 126. The bottom of the retractable rod 126 is fixedly connected, and the tops of the two second telescopic rods 126 are provided with a clamping device 13. By setting the L-shaped block 118 and fixing it with the inner side of the sliding long plate 123, the sliding long plate 123 can slide up and down along the outer surface of the long column 122. The top of the first sliding rod 124 is movably connected with a sliding block 125, and the two ends of the sliding block 125 are fixedly connected to the push block 1196. When the sliding block 125 slides horizontally, it will drive the push block 1196 to move, thereby realizing the linkage between the various components of the device. The second telescopic rod 126 is driven by the motor 112 to drive the clamping device 13 fixedly connected to its top to move up and down, thereby adjusting the grinding height of the blank placed in the center of the clamping device 13 to meet the grinding requirements of blanks of different sizes. And the tops of the two second telescopic rods 126 are fixedly connected to the bottom of the clamping device 13.

[0025] Embodiment 3: Based on Embodiment 2, Figure 7-8 As shown, the clamping device 13 includes a hollow block 131, and cylinders 132 are provided at the hollow parts at both ends of the hollow block 131, and the hollow parts at both ends of the hollow block 131 are connected with the top of the cylinder 132, and the output shaft ends of the two cylinders 132 are provided with clamping blocks 133, and the output shaft ends of the two cylinders 132 are fixedly connected to the rear ends of the clamping blocks 133, and H-shaped blocks 134 are provided on the inner sides of the two clamping blocks 133, and the inner sides of the two clamping blocks 133 are correspondingly connected to the grooves at both ends of the H-shaped blocks 134.

[0026] A long rod 135 is provided at the center bottom of the H-shaped block 134, and the center bottom of the H-shaped block 134 is fixedly connected to the top of the long rod 135. A gear 136 is provided on the outer surface of the long rod 135, and the outer surface of the long rod 135 is movably connected to the center of the gear 136. Racks 137 are staggered on both sides of the outer surface of the gear 136, and the outer surfaces of the gear 136 are staggered on both sides of the outer surface of the rack 137, and the bottoms of the two racks 137 are fixedly connected to the convex parts at the bottom of the two clamping blocks 133. By setting the output shafts of the two cylinders 132 at the rear ends of the two clamping blocks 133, the two cylinders 132 can be moved. 32 can drive the two clamping blocks 133 to slide horizontally along the outer surface of the second sliding rod 138 to ensure that the moving direction is not offset. When the two clamping blocks 133 move toward the center at the same time, the two racks 137 of the raised part at the bottom of the clamping blocks 133 will mesh with the gear 136, driving the rotation of the gear 136. Through the meshing transmission of the racks 137 and the gear 136, it can not only effectively prevent the jamming phenomenon after long-term use, but also flexibly and quickly drive the two clamping blocks 133 to move toward the center, thereby firmly clamping the blank and fixing it to the bottom of the grinding block 2 for grinding, so that the overall device structure is simple. The bottom ends of the two clamping blocks 133 are provided with the second sliding rod 138, and the bottom ends of the two clamping blocks 133 are movably connected to the top of the second sliding rod 138, and the bottom of the second sliding rod 138 is fixedly connected to the top of the fixedly connected hollow block 131.

[0027] The working principle of the present invention is as follows: By pushing the pushing device 11 downward, the blank fixed on the top of the clamping device 13 is moved to the bottom of the grinding block 2. After the grinding is completed, the sliding device 12 drives the pushing device 11 and the grinding block 2 to rise, avoiding contact between the grinding block 2 and the human body, thereby reducing the risk of personal injury; The pushing device 11 includes a motor 112, which can drive the polygonal block 113 to rotate, so that the elliptical plate 114 movably connected to the central groove of the polygonal block 113 will move downward, so that the two first curved rods 116 movably connected to the bottom end of the elliptical plate 114 will also move downward, thereby pushing the first telescopic rod 117 and the sliding long plate 123 connected to the bottom of the first curved rod 116 to descend to a suitable grinding position; The bottom of the L-shaped block 118 is connected to one end of the top of the movable block 119. The movable block 119 includes a push block 1196. One end of the push block 1196 is fixedly connected to both ends of the second telescopic rod 126. When the second telescopic rod 126 is pushed backward, the push block 1196 drives the third rotating shaft 1195 to move in the hollow part of the second curved rod 1193, so that the sliding wheel 1194 slides and contacts with the bottom of the L-shaped block 118. When the second telescopic rod 126 moves forward, the third rotating shaft 1195 will pull the second curved rod 1193, so that the sliding wheel 1194 presses against the bottom of the L-shaped block 118 and supports it to slide upward. At this time, the sliding device 12 has moved forward from under the grinding block 2 to avoid accidental contact with the grinding block 2 when it is manually taken; The sliding device 12 includes a sliding long plate 123, which adjusts its height along the outer surface of the long column 122 under the push of the first telescopic rod 117, and realizes up and down movement by pulling the movable block 119. A first sliding rod 124 is provided at the bottom of the sliding block 125, and the first sliding rod 124 not only accelerates the sliding speed of the sliding block 125, but also drives the pushing block 1196 to move forward and backward. When the sliding block 125 drives the clamping device 13 to move to a suitable position, the second telescopic rod 126 will drive the clamping device 13 to move upward under the drive of the motor 112 to ensure that the blank is in the best grinding position; The clamping device 13 includes two cylinders 132, and the output shafts at the front ends of the two cylinders 132 are fixedly connected to two clamping blocks 133. When the cylinders 132 drive the clamping blocks 133 to move toward the center, the two clamping blocks 133 will move horizontally along the outer surface of the second sliding rod 138 to ensure that the moving direction is not offset. The rack 137 at the bottom protruding part of the clamping block 133 meshes and rotates with the gear 136, which can effectively prevent the jamming phenomenon after long-term use, thereby firmly clamping the blank and fixing it to the bottom of the grinding block 2 for grinding, so that the overall device structure is simple, the various components are closely linked, and it is easy to operate and maintain.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An edge burr grinding device for die-casting blanks, comprising a grinding device (1), wherein a grinding block (2) is connected to the bottom of the grinding device (1), and the characteristics are: The grinding device (1) comprises a pushing device (11), the bottom of which is connected to a sliding device (12), and when the pushing device (11) moves downward, it can drive the sliding device (12) to move, and the top of the sliding device (12) is fixedly connected to a clamping device (13), and the clamping device (13) is used to fix the die-casting blank to be ground, and the clamping device (13) can move horizontally with the movement of the sliding device (12), so that the die-casting blank fixed at the center of the clamping device (13) is gradually moved to the bottom of the grinding block (2), thereby completing the grinding of edge burrs; The pushing device (11) comprises two support frames (111), the centers of the two support frames (111) are fixedly connected to a motor (112), the top front ends of the two support frames (111) are fixedly connected to a polygonal block (113), the central hollow portion of the polygonal block (113) is movably connected to an elliptical plate (114), and the bottom end of the elliptical plate (114) is movably connected to a first rotating shaft (115); Both ends of the first rotating shaft (115) are movably connected to a first bending rod (116), the bottom ends of the two first bending rods (116) are movably connected to a first telescopic rod (117), the outer surface of the bottom of the first telescopic rod (117) is fixedly connected to a sliding device (12), the bottom end of the first telescopic rod (117) is movably connected to a grinding block (2), both sides of the bottom of the two support frames (111) are correspondingly connected to L-shaped blocks (118), and the bottoms of the two L-shaped blocks (118) are correspondingly connected to movable blocks (119).

2. The edge burr grinding device of a die-casting blank according to claim 1 is characterized in that: The movable block (119) comprises a concave block (1191), a second rotating shaft (1192) being movably connected to a groove at the top of the concave block (1191), a second curved rod (1193) being fixedly connected to the central outer surface of the second rotating shaft (1192), one end of the second curved rod (1193) being movably connected to a sliding wheel (1194), a third rotating shaft (1195) being movably connected to a hollow portion at the other end of the second curved rod (1193), a pushing block (1196) being fixedly connected to the bottom end of the third rotating shaft (1195), and a sliding device (12) being fixedly connected to the inner side of the pushing block (1196).

3. The edge burr grinding device of a die-casting blank according to claim 2 is characterized in that: The sliding device (12) comprises a bottom plate (121), both ends of the top of the bottom plate (121) are fixedly connected to long columns (122), the top outer surfaces of the two long columns (122) are movably connected to sliding long plates (123), the center top of the sliding long plates (123) is fixed to the bottom outer surface of the first telescopic rod (117), and the inner two ends of the sliding long plates (123) are fixedly connected to the tops of two L-shaped blocks (118).

4. The edge burr grinding device of a die-casting blank according to claim 3 is characterized in that: Two first sliding rods (124) are fixedly connected to the top of the bottom plate (121); the outer surfaces of the two first sliding rods (124) are movably connected to sliding blocks (125); and the grooves at both ends of the two sliding blocks (125) are fixedly connected to the inner side of the pushing block (1196); the tops of the two sliding blocks (125) are fixedly connected to second telescopic rods (126); and the tops of the two second telescopic rods (126) are fixedly connected to clamping devices (13).

5. The edge burr grinding device of a die-casting blank according to claim 4, characterized in that: The clamping device (13) comprises a hollow block (131), the hollow portions at both ends of the hollow block (131) are penetrated by cylinders (132), the output shaft ends of the two cylinders (132) are fixedly connected to clamp blocks (133), and the inner sides of the two clamp blocks (133) are correspondingly connected to H-shaped blocks (134).

6. The edge burr grinding device of a die-casting blank according to claim 5, characterized in that: A long rod (135) is fixedly connected to the center bottom of the H-shaped block (134), a gear (136) is movably connected to the outer surface of the long rod (135), racks (137) are staggeredly meshed and connected to the outer surfaces of the gears (136), and the bottoms of the two racks (137) are fixedly connected to the raised parts of the bottoms of the two clamping blocks (133), and the bottoms of the two clamping blocks (133) are movably connected to the second sliding rod (138), and the bottom of the second sliding rod (138) is fixedly connected to the top of the fixedly connected hollow block (131).

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