Grate polishing clamp

Abstract

The utility model relates to the technical field of grate polishing, and discloses a grate polishing clamp which comprises a workbench and a moving assembly installed at the upper end of the workbench, a transverse pressing assembly is installed at the upper end of the moving assembly, and a vertical pressing assembly is installed on the rear side of the moving assembly. A vertical pressing assembly is installed at the upper end of the transverse pressing assembly. The transverse pressing assembly, the vertical pressing assembly and the vertical pressing assembly can be moved to required positions together through the moving assembly; the moving distance of the fine adjustment mechanism can be accurately controlled through the fine adjustment mechanism, so that the subsequent polishing precision of the grate is guaranteed; the grate is clamped from the left side and the right side through mutual cooperation of a first clamping block and a second clamping block in the transverse pressing assembly. Different positions of the grate can be pressed from the upper end through the vertical pressing assembly; the edge position of the rear end of the grate can be pressed through a clamping mechanism in the vertical pressing assembly; and the grinding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grate grinding, in particular to a grate grinding fixture. Background Art

[0002] Grate is a sieve plate material suitable for material screening, with many advantages such as clean sieve holes, uniform screening, wear resistance, and not easy to clog. It is widely used in various types of screening equipment, such as vibrating screens, screening machines, limestone screening, coal screening, mineral screening and other industries; in order to ensure that the processed grates are qualified; during the grinding process of the grates, the grates need to be clamped to keep the grates stable; but the current clamps are generally in the process of high-level grinding, and the workpiece to be ground is prone to shifting, which leads to low grinding accuracy.

[0003] For example, a Chinese patent discloses a fixing fixture for plate hammer grinding (authorization announcement number CN212683587U). This patented technology places the plate hammer body inside the positioning seat for initial positioning during grinding, and then places the L-plate on the left and right sides of the plate hammer body. The motor then drives the toothed discs on both sides to rotate, and the threaded rod rotates together with it. At the same time, the side pressure frames on both sides move toward each other with the threaded sleeves. Finally, the side pressure plates on the side pressure frames are pressed on the L-plate, so that the L-plates on both sides are pressed against the plate hammer body, and the L-plates are initially fixed to improve the fixing effect on the plate hammer body, thereby achieving the purpose of stable fixation. However, during high-level grinding, the workpiece to be ground is prone to displacement, which leads to low grinding accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a grate grinding fixture to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The grate grinding fixture comprises a workbench and a moving component installed at the upper end of the workbench, a lateral clamping component is installed at the upper end of the moving component, and a vertical clamping component is installed on the rear side of the moving component, and a vertical clamping component is installed at the upper end of the lateral clamping component; the vertical clamping component comprises a vertical adjustment seat, and a group of clamping mechanisms embedded and installed at the upper end of the vertical adjustment seat; the clamping mechanism comprises a second support bar, and a group of fixed blocks fixed to one side of the upper end of the second support bar, one side of the lower end of the second support bar is fixedly connected to a second dovetail fixed block, and a second dovetail movable block is arranged on the other side of the lower end of the second support bar, the second support bar and the second dovetail movable block are connected by a second fastening screw, and a group of the A connecting shaft is fixedly connected between the fixed blocks, a first rotating arm is rotatably connected to the connecting shaft between a group of the fixed blocks, and a second rotating arm is rotatably connected to the connecting shaft at the outside of one of the fixed blocks, a first pressing head is fixedly installed at one end of the first rotating arm, a second pressing head is fixedly installed at one end of the second rotating arm, and a second connecting arm is rotatably connected to the other end of the second rotating arm, one end of the second connecting arm is located at the outside of one of the fixed blocks and is rotatably connected to a manual pressing handle, the upper end of the second support bar is located between the fixed block and the second fastening screw and is rotatably connected to a second hydraulic cylinder, the output end of the second hydraulic cylinder is rotatably connected to the first connecting arm, and the first connecting arm is rotatably connected to the middle part of the first rotating arm.

[0007] As a further solution of the utility model: the vertical adjustment seat includes a group of vertical slides arranged in parallel, a first dovetail movable block is arranged on the front side of the lower end of each vertical slide, and a first sliding block is arranged on the rear side of the lower end of each vertical slide, a left-hand screw and a right-hand screw are respectively penetrated by the front end of the inner side of a group of vertical slides, and an adjusting disk is fixedly connected between the left-hand screw and the right-hand screw, the lower ends of the two first sliding blocks are jointly slidably connected to a first slide rail, and the vertical slide is connected to the first dovetail movable block by a first fastening screw.

[0008] As a further solution of the utility model: the vertical clamping assembly includes an L-shaped column, a sliding frame is sleeved on the upper end of the outer side of the L-shaped column, and a rack is fixedly connected to the upper end of the inner side of the L-shaped column, the upper end of the rack is meshed with a gear, one end of the sliding frame is rotatably embedded with a handwheel, and a vertical hydraulic cylinder is fixedly connected to the lower end of the sliding frame, the lower end of the vertical hydraulic cylinder is fixedly connected to a clamping block, and the handwheel is fixedly connected to the gear.

[0009] As a further solution of the utility model: the lateral clamping assembly includes a group of parallel lateral slides, a second clamping block is fixedly installed on one side of the upper end of each lateral slide, and a first clamping block is embedded and installed on one side of the upper end of each lateral slide away from the second clamping block.

[0010] As a further solution of the utility model: the first clamping block includes a first support bar, one side of the lower end of the first support bar is fixedly connected to a dovetail fixed block, and the other side of the lower end of the first support bar is connected to a dovetail movable block through a fastening screw, a first hydraulic cylinder and a group of guide rods are installed on one side of the first support bar, and one end of the first hydraulic cylinder and the group of guide rods are commonly connected to a chuck.

[0011] As a further solution of the utility model: the moving assembly includes a group of linear rails arranged in parallel, a group of linear rails are slidably connected with a fine-tuning mechanism, an adjustment mechanism is installed on the fine-tuning mechanism, and a hydraulic cylinder is installed at one end of the fine-tuning mechanism.

[0012] As a further solution of the utility model: the adjustment mechanism includes a group of second base plates arranged in parallel, and a group of second sliding bars perpendicular to both sides of the upper ends of the group of second base plates, a second threaded rod is installed between the group of second base plates, and the outer side of the second threaded rod is meshedly connected with a second nut pair.

[0013] As a further solution of the utility model: the fine-tuning mechanism includes a first base plate, the upper end of the first base plate is slidably connected to two parallel first sliding bars, and two groups of sliding blocks are fixedly connected to the front and rear sides of the lower end of the first base plate, the upper end of the first base plate is located between the two first sliding bars and a first threaded rod is installed, the first threaded rod is meshingly connected to a first nut pair, and a fine-tuning handle is fixedly connected to the rear end of the first threaded rod, and a dial is arranged on the outer side of the fine-tuning handle.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model can move the transverse clamping assembly, the vertical clamping assembly and the vertical clamping assembly together to the desired positions through the moving assembly; the moving distance of the adjustment mechanism can be accurately controlled through the fine adjustment mechanism to ensure the subsequent grinding accuracy of the grate; the grate can be clamped from the left and right sides through the mutual cooperation of the first clamping block and the second clamping block in the transverse clamping assembly; the different positions of the grate can be clamped from the upper end through the vertical clamping assembly; the edge position of the rear end of the grate can be clamped through the clamping mechanism in the vertical clamping assembly; the stability of the grate is ensured, so that the grate does not move in position during the grinding process, and the grinding accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the grate grinding fixture in Example 1;

[0017] Figure 2 Schematic diagram of the structure of the moving component in the grate grinding fixture in Example 1;

[0018] Figure 3 Schematic diagram of the structure of the adjustment mechanism in the grate grinding fixture in Example 1;

[0019] Figure 4 Schematic diagram of the structure of the fine adjustment mechanism in the grate grinding fixture in Example 1;

[0020] Figure 5 Schematic diagram of the structure of the transverse pressing assembly in the grate grinding fixture in Example 1;

[0021] Figure 6 Schematic diagram of the structure of the first clamping block in the grate grinding fixture in Example 1;

[0022] Figure 7 Schematic diagram of the structure of the vertical pressing assembly in the grate grinding fixture in Example 1;

[0023] Figure 8 Schematic diagram of the structure of the vertical adjustment seat in the grate grinding fixture in Example 1;

[0024] Fig. 9 Schematic diagram of the structure of the clamping mechanism in the grate grinding fixture in Example 1;

[0025] Fig.10 Schematic diagram of the partial structure of the clamping mechanism in the grate grinding fixture in Example 1;

[0026] Fig.11 Schematic diagram of the structure of the vertical pressing assembly in the grate grinding fixture in Example 1;

[0027] Fig.12 Schematic diagram of the local structure of the vertical pressing assembly in the grate grinding fixture in Example 1;

[0028] Fig.13 Schematic diagram of the structure of the grate grinding fixture in Example 2;

[0029] Fig.14 Schematic diagram of the structure of the third clamping assembly in the grate grinding fixture in Example 2;

[0030] Fig.15 Schematic diagram of the structure of the fifth clamping block in the grate grinding fixture in Example 2;

[0031] Fig.16 Schematic diagram of the structure of the fourth clamping block in the grate grinding fixture in Example 2;

[0032] Fig.17 Schematic diagram of the structure of the fourth clamping assembly in the grate grinding fixture in Example 2;

[0033] Fig.18Schematic diagram of the structure of the fourth clamping mechanism in the grate grinding fixture in Example 2;

[0034] Fig.19 This is a schematic diagram of the partial decomposition structure of the fourth clamping mechanism in the grate grinding fixture in Example 2.

[0035] In the figure: 1. Workbench;

[0036] 2. Moving assembly; 21. Hydraulic cylinder; 22. Linear rail; 23. Fine adjustment mechanism; 231. First base plate; 232. Sliding block; 233. Fine adjustment handle; 234. Scale plate; 235. First nut pair; 236. First threaded rod; 237. First sliding bar; 24. Adjustment mechanism; 241. Second base plate; 242. Second sliding bar; 243. Second nut pair; 244. Second threaded rod;

[0037] 3. Transverse clamping assembly; 31. First clamping block; 311. First support bar; 312. Guide rod; 313. Clamp; 314. First hydraulic cylinder; 315. Dovetail fixed block; 316. Dovetail movable block; 317. Fastening screw; 32. Second clamping block; 33. Transverse slide;

[0038] 4. Vertical clamping assembly; 41. L-shaped column; 42. Sliding frame; 43. Hand wheel; 44. Vertical hydraulic cylinder; 45. Clamping block; 46. Gear; 47. Rack;

[0039] 5. Vertical clamping assembly; 50. Vertical adjustment seat; 51. Vertical slide seat; 52. Left-hand screw; 53. First dovetail movable block; 54. Adjustment disc; 55. Right-hand screw; 56. First fastening screw; 57. First slide block; 58. First slide rail; 59. Clamping mechanism; 591. Second support bar; 592. Second dovetail movable block; 593. Second fastening screw; 594. Second hydraulic cylinder; 595. Fixed block; 596. First connecting arm; 597. First rotating arm; 598. First pressure head; 599. Second pressure head; 590. Second rotating arm; 501. Second dovetail fixed block; 502. Second connecting arm; 503. Manual pressure handle; 504. Connecting shaft;

[0040] 6. Third clamping assembly; 61. Third adjustment seat; 62. Third clamping block; 63. Fourth clamping block; 631. Positioning hole; 64. Fifth clamping block; 641. Positioning pin; 65. Sixth clamping block;

[0041] 7. Fourth clamping assembly; 71. Fourth slide; 72. Fourth clamping mechanism; 721. Fourth slide; 722. Fourth hydraulic cylinder; 723. Fourth connecting piece; 724. Guide sleeve; 725. Long slide rod; 726. Rotary pressure claw; 727. Fourth pressure block; 728. Limiting column; 729. Spiral groove. DETAILED DESCRIPTION Example 1

[0042] See also Figures 1 to 12 In the embodiment of the utility model, the grate grinding fixture comprises a workbench 1 and a moving assembly 2 installed on the upper end of the workbench 1, a lateral pressing assembly 3 is installed on the upper end of the moving assembly 2, and a vertical pressing assembly 4 is installed on the rear side of the moving assembly 2, and a vertical pressing assembly 5 is installed on the upper end of the lateral pressing assembly 3;

[0043] exist Figures 2 to 4 In the embodiment, the moving assembly 2 includes a group of linear rails 22 arranged in parallel, a fine adjustment mechanism 23 is slidably connected to the group of linear rails 22, an adjustment mechanism 24 is installed on the fine adjustment mechanism 23, and a hydraulic cylinder 21 is installed at one end of the fine adjustment mechanism 23; the lower end of the linear rail 22 and the outer shell of the hydraulic cylinder 21 are both installed on the workbench 1, and the hydraulic cylinder 21 is started, and the fine adjustment mechanism 23 and the adjustment mechanism 24 are driven to slide along the group of linear rails 22 through the extension and contraction of the hydraulic cylinder 21, so as to move the lateral clamping assembly 3, the vertical clamping assembly 4 and the vertical clamping assembly 5 to the desired position together;

[0044] The adjustment mechanism 24 includes a group of second bottom plates 241 arranged in parallel, and a group of second sliding bars 242 perpendicular to both sides of the upper ends of the group of second bottom plates 241. A second threaded rod 244 is installed between the group of second bottom plates 241, and a second nut pair 243 is meshed and connected to the outer side of the second threaded rod 244; the second threaded rod 244 is rotated by an external tool, so that the second nut pair 243 moves linearly along the second threaded rod 244, and the lateral clamping assembly 3 fixed with the second nut pair 243 can be driven to move, thereby adjusting the distance between the two lateral clamping assemblies 3 to adapt to grates of different sizes;

[0045] The fine-tuning mechanism 23 includes a first base plate 231, the upper end of which is slidably connected to two parallel first sliding bars 237, and two sets of sliders 232 are fixedly connected to the front and rear sides of the lower end of the first base plate 231, the upper end of the first base plate 231 is located between the two first sliding bars 237 and is installed with a first threaded rod 236, the first threaded rod 236 is meshedly connected with a first nut pair 235, and a fine-tuning handle 233 is fixedly connected to the rear end of the first threaded rod 236, and a dial 234 is arranged on the outer side of the fine-tuning handle 233; the upper end of the first sliding bar 237 is fixedly connected to the second base plate 241, and the first nut pair 235 is meshedly connected to the first threaded rod 236. The two ends of the first slider 237 are fixedly connected to each other, and each set of sliders 232 is slidably connected to a linear rail 22. By rotating the fine-tuning handle 233, the fine-tuning handle 233 drives the first threaded rod 236 to rotate, so that the first nut pair 235 moves linearly along the first threaded rod 236, thereby driving the two first sliders 237 to slide along the first bottom plate 231, and then driving the entire adjustment mechanism 24 to move together. The rotation angle of the fine-tuning handle 233 can be accurately controlled by the dial 234, thereby achieving fine adjustment, and accurately controlling the moving distance of the adjustment mechanism 24 to ensure the subsequent grinding accuracy of the grate.

[0046] exist Figures 5-6 In the embodiment, the transverse clamping assembly 3 includes a group of transverse slides 33 arranged in parallel, a second clamping block 32 is fixedly installed on one side of the upper end of each transverse slide 33, and a first clamping block 31 is embedded and installed on one side of the upper end of each transverse slide 33 away from the second clamping block 32; the lower end of the transverse slide 33 in one transverse clamping assembly 3 is fixed to the front side of the upper end of the second sliding bar 242, and can move with the adjustment mechanism 24, and the lower end of the transverse slide 33 in the other transverse clamping assembly 3 is fixed on the second nut pair 243, and can move with the second threaded rod 244 of the second nut pair 243;

[0047] The first clamping block 31 includes a first support bar 311, one side of the lower end of the first support bar 311 is fixedly connected to a dovetail fixed block 315, and the other side of the lower end of the first support bar 311 is connected to a dovetail movable block 316 through a fastening screw 317, a first hydraulic cylinder 314 and a group of guide rods 312 are installed on one side of the first support bar 311, and one end of the first hydraulic cylinder 314 and a group of guide rods 312 are commonly connected to a chuck 313; the guide rod 312 is slidably connected to the chuck 313, and the dovetail fixed block 315 and the dovetail movable block 316 are embedded and installed in the transverse The inner side of the slide 33; loosen the fastening screw 317 counterclockwise to make the entire first clamping block 31 slide along the transverse slide 33, and the first clamping block 31 can be moved to a suitable position, and then tighten the fastening screw 317 clockwise to securely fix the entire first clamping block 31 on the transverse slide 33 to accommodate grates of different sizes; then, start the first hydraulic cylinder 314, the first hydraulic cylinder 314 extends, and drives the clamp 313 to slide along the guide rod 312, so that the grate can be clamped by the mutual cooperation of the clamp 313 and the second clamping block 32.

[0048] exist Figures 7-10 In the embodiment, the vertical clamping assembly 5 includes a vertical adjustment seat 50 and a group of clamping mechanisms 59 embedded and installed on the upper end of the vertical adjustment seat 50;

[0049] The vertical adjustment seat 50 includes a group of vertical slides 51 arranged in parallel, a first dovetail movable block 53 is arranged on the front side of the lower end of each vertical slide 51, and a first slider 57 is arranged on the rear side of the lower end of each vertical slide 51, a left-hand screw 52 and a right-hand screw 55 are respectively penetrated at the front end of the inner side of a group of vertical slides 51, and an adjustment disk 54 is fixedly connected between the left-hand screw 52 and the right-hand screw 55, the lower ends of the two first sliders 57 are slidably connected with a first slide rail 58, and the vertical slide 51 is connected to the first dovetail movable block 53 by a first fastening screw 56; the first dovetail movable block 53 is connected to the vertical slide 51 ... The block 53 is embedded in the inner side of the corresponding transverse slide 33; the first dovetail movable block 53 can be firmly fixed at different positions in the transverse slide 33 by rotating the first fastening screw 56, and the lower end of the first slide rail 58 is fixed to the rear side of the upper end of the second slide bar 242 by bolts; one of the vertical slides 51 is fixed to the transverse slide 33 by the first fastening screw 56, and then the external tool rotates the adjusting disc 54, so that the other vertical slide 51 can slide along the transverse slide 33 and the first slide rail 58, so that the two vertical slides 51 are moved closer or farther away, thereby adapting to grates of different sizes;

[0050] The clamping mechanism 59 includes a second support bar 591, and a group of fixed blocks 595 fixed to one side of the upper end of the second support bar 591, a second dovetail fixed block 501 is fixedly connected to one side of the lower end of the second support bar 591, and a second dovetail movable block 592 is provided on the other side of the lower end of the second support bar 591, the second support bar 591 and the second dovetail movable block 592 are connected by a second fastening screw 593, a connecting shaft 504 is fixedly connected between the group of fixed blocks 595, and a first rotating arm 597 is rotatably connected between the group of fixed blocks 595 on the connecting shaft 504, and the first rotating arm 597 is rotatably connected to the connecting shaft 504. The second rotating arm 590 is rotatably connected to the outer side of one of the fixed blocks 595 on the connecting shaft 504, a first pressing head 598 is fixedly installed on one end of the first rotating arm 597, a second pressing head 599 is fixedly installed on one end of the second rotating arm 590, and a second connecting arm 502 is rotatably connected to the other end of the second rotating arm 590, one end of the second connecting arm 502 is located on the outer side of one of the fixed blocks 595 and is rotatably connected to the manual pressing handle 503, the upper end of the second supporting bar 591 is located between the fixed block 595 and the second fastening screw 593 and is rotatably connected to the second hydraulic cylinder 594, the second The output end of the hydraulic cylinder 594 is rotatably connected to the first connecting arm 596, and the first connecting arm 596 is rotatably connected to the middle part of the first rotating arm 597; the second dovetail fixed block 501 and the second dovetail movable block 592 are both embedded in the upper end of the inner side of the vertical slide 51, and the second dovetail movable block 592 can be firmly fixed to the inner side of the vertical slide 51 at different positions through the second fastening screw 593; hold the manual pressure handle 503 by hand and press downward, the manual pressure handle 503 pulls the second connecting arm 502 while rotating, and the second connecting arm 502 pulls the second rotating arm 590, so that the second rotating The arm 590 and the second pressure head 599 rotate counterclockwise with the connecting shaft 504 as the center, so that the second pressure head 599 can be pressed on the edge of the rear end of the grate to preliminarily fix the grate; then the second hydraulic cylinder 594 is started, the second hydraulic cylinder 594 retracts and pulls the first connecting arm 596, the first connecting arm 596 pulls the first rotating arm 597, so that the first rotating arm 597 and the first pressure head 598 rotate counterclockwise with the connecting shaft 504 as the center, so that the first pressure head 598 can be pressed on the edge of the rear end of the grate, the grate can be fixed again, and the stability of the grate fixation is improved.

[0051] exist Figures 11-12In the embodiment, the vertical clamping assembly 4 includes an L-shaped column 41, the upper end of the outer side of the L-shaped column 41 is sleeved with a sliding frame 42, and a rack 47 is fixedly connected to the upper end of the inner side of the L-shaped column 41, and the upper end of the rack 47 is meshed with a gear 46, one end of the sliding frame 42 is rotatably embedded with a hand wheel 43, and a vertical hydraulic cylinder 44 is fixedly connected to the lower end of the sliding frame 42, and a clamping block 45 is fixedly connected to the lower end of the vertical hydraulic cylinder 44, and the hand wheel 43 is fixedly connected to the gear 46; the lower end of the L-shaped column 41 is fixed to the upper end of the second bottom plate 241 The rear side of the L-shaped column 41 can be moved together with the adjustment mechanism 24; the hand wheel 43 is held by hand and turned, the hand wheel 43 drives the gear 46 to rotate, the gear 46 is meshed with the rack 47 for transmission, so that the sliding frame 42 can slide along the upper end of the L-shaped column 41, and then the vertical hydraulic cylinder 44 and the clamping block 45 are driven to slide along the upper end of the L-shaped column 41, so that the clamping block 45 can be moved to a suitable position, and then the vertical hydraulic cylinder 44 is started, and the vertical hydraulic cylinder 44 extends downward, so that the grate can be pressed by the clamping block 45.

[0052] Working principle of the utility model: when it is necessary to clamp and fix the grate to be polished, first, the hydraulic cylinder 21 is started, and the fine adjustment mechanism 23 and the adjustment mechanism 24 are driven to slide along a set of linear rails 22 by the extension and contraction of the hydraulic cylinder 21, so that the horizontal clamping assembly 3, the vertical clamping assembly 4 and the vertical clamping assembly 5 are moved to the desired position together;

[0053] Next, according to the size of the grate, the second threaded rod 244 is rotated by an external tool, so that the second nut pair 243 moves linearly along the second threaded rod 244, and the transverse clamping assembly 3 fixed to the second nut pair 243 can be driven to move, thereby adjusting the distance between the two transverse clamping assemblies 3 on the horizontal plane to adapt to grates of different sizes;

[0054] Next, the adjusting disc 54 is rotated by an external tool so that the two vertical slides 51 slide along the transverse slide 33 and the first slide rail 58, thereby adjusting the distance between the two clamping mechanisms 59 on the horizontal plane to accommodate grates of different sizes.

[0055] Next, the grate is placed on a set of vertical adjustment seats 50 near the clamping mechanism 59;

[0056] Then, the manual pressing handle 503 is held and pressed downward by hand, and the manual pressing handle 503 pulls the second connecting arm 502 while rotating, and the second connecting arm 502 pulls the second rotating arm 590, so that the second rotating arm 590 and the second pressing head 599 rotate counterclockwise with the connecting shaft 504 as the center, so that the second pressing head 599 can be pressed on the edge position of the rear end of the grate, and the grate is preliminarily fixed; then the second hydraulic cylinder 594 is started, and the second hydraulic cylinder 594 retracts and pulls the first connecting arm 596, and the first connecting arm 596 pulls the first rotating arm 597, so that the first rotating arm 597 and the first pressing head 598 rotate counterclockwise with the connecting shaft 504 as the center, so that the first pressing head 598 can be pressed on the edge position of the rear end of the grate, and the grate is fixed again;

[0057] Next, the first hydraulic cylinder 314 is started, the first hydraulic cylinder 314 is extended, and drives the clamp 313 to slide along the guide rod 312, so that the grate can be clamped from the left and right sides through the cooperation between the clamp 313 and the second clamping block 32;

[0058] Finally, the hand wheel 43 is held by hand and turned, and the hand wheel 43 drives the gear 46 to rotate, and the gear 46 is meshed with the rack 47 for transmission, so that the sliding frame 42 can slide along the upper end of the L-shaped column 41, and then the vertical hydraulic cylinder 44 and the clamping block 45 are driven to slide along the upper end of the L-shaped column 41, so that the clamping block 45 can be moved to a suitable position, and then the vertical hydraulic cylinder 44 is started, and the vertical hydraulic cylinder 44 extends downward, and the grate can be pressed from the upper end through the clamping block 45, so as to ensure the stability of the grate, so that the grate does not move during the grinding process, and the grinding accuracy is improved; Example 2

[0059] See also Figures 13 to 19 In the embodiment of the utility model, the grate grinding fixture comprises a workbench 1 and a moving assembly 2 installed on the upper end of the workbench 1, characterized in that a third clamping assembly 6 is installed on the upper end of the moving assembly 2, and a vertical pressing assembly 4 is installed on one side of the moving assembly 2, and a fourth clamping assembly 7 is installed on the upper end of the third clamping assembly 6;

[0060] The angles of the vertical clamping assembly 4, the third clamping assembly 6 and the fourth clamping assembly 7 and the moving assembly 2 in Example 2 are exactly rotated 90° compared with the angles of the horizontal clamping assembly 3, the vertical clamping assembly 4 and the vertical clamping assembly 5 and the moving assembly 2 in Example 1;

[0061] exist Figures 14 to 16In the embodiment, the third clamping assembly 6 includes a group of third adjustment seats 61 arranged in parallel, wherein a fourth clamping block 63 and a third clamping block 62 are embedded and installed at the upper end of one of the third adjustment seats 61, and a fifth clamping block 64 and a sixth clamping block 65 are embedded and installed at the upper end of another third adjustment seat 61; the structures of the third clamping block 62 and the sixth clamping block 65 are the same as those of the first clamping block 31 in embodiment 1, but the shapes are different;

[0062] The structure of the fourth clamping block 63 is similar to that of the second clamping block 32 in Example 1, except that the second clamping block 32 is fixed on the transverse slide 33 and cannot move on the transverse slide 33; the fourth clamping block 63 can be installed at different positions on the third adjustment seat 61 to adapt to grates of different sizes; and a positioning hole 631 is provided on the fourth clamping block 63, while the second clamping block 32 in Example 1 does not have this structure;

[0063] The structure of the fifth clamping block 64 is similar to the clamping mechanism 59 in Example 1, except that the fifth clamping block 64 does not have the second hydraulic cylinder 594, the first connecting arm 596, the first rotating arm 597 and the first pressing head 598, and there is only one fixed block 595, that is, the fifth clamping block 64 can only perform manual preliminary clamping without secondary clamping; and a positioning pin 641 is installed on the fifth clamping block 64, while the structure of 59 in Example 1 is not included, that is, after the fourth clamping block 63 and the fifth clamping block 64 are relatively close, the positioning pin 641 can be embedded in the hole to be positioned 631;

[0064] The structure of the third adjustment seat 61 is completely the same as that of the vertical adjustment seat 50 in the first embodiment.

[0065] exist Figures 17 to 19 In the embodiment, the fourth clamping assembly 7 includes a group of fourth slide seats 71 arranged in parallel, and a fourth clamping mechanism 72 is embedded in the upper end of each fourth slide seat 71. The fourth clamping mechanism 72 can be installed at different positions on the fourth slide seat 71. The fourth clamping mechanism 72 includes a fourth slide bracket 721 installed on the fourth slide seat 71.

[0066] A fourth pressure block 727 is installed at one end of the fourth slide 721, and a fourth hydraulic cylinder 722 is installed at the other end of the fourth slide 721. The output end of the fourth hydraulic cylinder 722 is connected to a fourth connecting piece 723. The upper end of the fourth connecting piece 723 is rotatably connected to a long sliding rod 725. One end of the long sliding rod 725 is fixedly connected to a rotating pressing claw 726. A guide sleeve 724 is installed at the upper end of the inner side of the fourth slide 721. The long sliding rod 725 penetrates the inner side of the guide sleeve 724. A group of limiting columns 728 are installed on the long sliding rod 725. A spiral groove 729 is opened on the inner side of the guide sleeve 724.

[0067] The fourth hydraulic cylinder 722 is started. During the extension and retraction process, the fourth hydraulic cylinder 722 drives the long slide bar 725 to move horizontally along the guide sleeve 724. At the same time, the limit column 728 slides inside the spiral groove 729, so that the long slide bar 725 moves horizontally along the guide sleeve 724 and rotates at the same time.

[0068] Thereby, the rotating pressing claw 726 is rotated while moving in the horizontal direction, and the grate is fixed by the cooperation between the rotating pressing claw 726 and the fourth pressing block 727 .

[0069] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grate grinding fixture, comprising a workbench (1) and a moving assembly (2) mounted on the upper end of the workbench (1), characterized in that: A lateral pressing assembly (3) is installed at the upper end of the moving assembly (2), and a vertical pressing assembly (4) is installed at the rear side of the moving assembly (2); a vertical pressing assembly (5) is installed at the upper end of the lateral pressing assembly (3); the vertical pressing assembly (5) comprises a vertical adjustment seat (50), and a group of clamping mechanisms (59) embedded in the upper end of the vertical adjustment seat (50); the clamping mechanism (59) comprises a second support bar (591), and a clamping member (59) fixed to the second support bar (591) ), a group of fixed blocks (595) are fixedly connected to one side of the upper end of the second support bar (591), a second dovetail fixed block (501) is fixedly connected to one side of the lower end of the second support bar (591), and a second dovetail movable block (592) is arranged on the other side of the lower end of the second support bar (591), the second support bar (591) and the second dovetail movable block (592) are connected via a second fastening screw (593), a connecting shaft (504) is fixedly connected between the group of fixed blocks (595), and the connecting shaft (504) ) is rotatably connected to a first rotating arm (597) located between a group of the fixed blocks (595), and is rotatably connected to a second rotating arm (590) located on a connecting shaft (504) on the outside of one of the fixed blocks (595); a first pressing head (598) is fixedly mounted on one end of the first rotating arm (597); a second pressing head (599) is fixedly mounted on one end of the second rotating arm (590); and a second connecting arm (502) is rotatably connected to the other end of the second rotating arm (590); one end of the second connecting arm (502) is located on the outside of one of the fixed blocks (595) and is rotatably connected to a manual pressing handle (503); the upper end of the second supporting bar (591) is located between the fixed block (595) and the second fastening screw (593) and is rotatably connected to a second hydraulic cylinder (594); the output end of the second hydraulic cylinder (594) is rotatably connected to the first connecting arm (596); and the first connecting arm (596) is rotatably connected to the middle of the first rotating arm (597).

2. The grate grinding fixture according to claim 1, characterized in that: The vertical adjustment seat (50) comprises a group of vertical slides (51) arranged in parallel, a first dovetail movable block (53) being arranged at the front side of the lower end of each vertical slide (51), and a first sliding block (57) being arranged at the rear side of the lower end of each vertical slide (51), a left-hand screw (52) and a right-hand screw (55) being respectively penetrated at the front end of the inner side of a group of vertical slides (51), and an adjustment disc (54) being fixedly connected between the left-hand screw (52) and the right-hand screw (55), the lower ends of the two first sliding blocks (57) being slidably connected to a first slide rail (58), and the vertical slide (51) and the first dovetail movable block (53) being connected via a first fastening screw (56).

3. The grate grinding fixture according to claim 1, characterized in that: The vertical clamping assembly (4) comprises an L-shaped column (41), a sliding frame (42) is sleeved on the upper end of the outer side of the L-shaped column (41), a rack (47) is fixedly connected to the upper end of the inner side of the L-shaped column (41), the upper end of the rack (47) is meshedly connected to a gear (46), a hand wheel (43) is rotatably embedded in one end of the sliding frame (42), a vertical hydraulic cylinder (44) is fixedly connected to the lower end of the sliding frame (42), a clamping block (45) is fixedly connected to the lower end of the vertical hydraulic cylinder (44), and the hand wheel (43) is fixedly connected to the gear (46).

4. The grate grinding fixture according to claim 1, characterized in that: The transverse clamping assembly (3) comprises a group of transverse slides (33) arranged in parallel, a second clamping block (32) being fixedly mounted on one side of the upper end of each transverse slide (33), and a first clamping block (31) being embedded and mounted on one side of the upper end of each transverse slide (33) away from the second clamping block (32).

5. The grate grinding fixture according to claim 4, characterized in that: The first clamping block (31) comprises a first support bar (311), one side of the lower end of the first support bar (311) is fixedly connected to a dovetail fixed block (315), and the other side of the lower end of the first support bar (311) is connected to a dovetail movable block (316) via a fastening screw (317), a first hydraulic cylinder (314) and a group of guide rods (312) are installed on one side of the first support bar (311), and one end of the first hydraulic cylinder (314) and the group of guide rods (312) are commonly connected to a clamp (313).

6. The grate grinding fixture according to claim 1, characterized in that: The moving assembly (2) comprises a group of linear rails (22) arranged in parallel, a fine adjustment mechanism (23) is slidably connected to one of the linear rails (22), an adjustment mechanism (24) is installed on the fine adjustment mechanism (23), and a hydraulic cylinder (21) is installed at one end of the fine adjustment mechanism (23).

7. The grate grinding fixture according to claim 6, characterized in that: The adjustment mechanism (24) comprises a group of second bottom plates (241) arranged in parallel, and a group of second sliding bars (242) perpendicular to both sides of the upper ends of the group of second bottom plates (241); a second threaded rod (244) is installed between the group of second bottom plates (241); and the outer side of the second threaded rod (244) is meshedly connected with a second nut pair (243).

8. The grate grinding fixture according to claim 6, characterized in that: The fine-tuning mechanism (23) comprises a first base plate (231), the upper end of the first base plate (231) is slidably connected to two parallel first sliding bars (237), and two groups of sliding blocks (232) are fixedly connected to the front and rear sides of the lower end of the first base plate (231), the upper end of the first base plate (231) is located between the two first sliding bars (237) and is provided with a first threaded rod (236), the first threaded rod (236) is meshingly connected to a first nut pair (235), and a fine-tuning handle (233) is fixedly connected to the rear end of the first threaded rod (236), and a dial (234) is arranged on the outer side of the fine-tuning handle (233).

Images