Automatic polishing clamp for four-split spacer frame

Abstract

The utility model discloses an automatic polishing clamp for a four-split spacer frame, which belongs to the field of electric power fitting processing and comprises a bottom plate, two vertical plates are arranged on the upper end face of the bottom plate in the left-right direction, and a processing platen is fixedly arranged on the bottom plate through the upper end faces of the two vertical plates. A protruding part matched with the annular groove of the frame is arranged on the upper end face of the machining platen in a protruding mode. By arranging the machining table plate and arranging the protruding part on the machining table plate, the frame can be reversely buckled on the machining table plate, and the annular groove of the frame is attached to the protruding part, so that the initial horizontal displacement of the frame is limited; the L-shaped rod moves downwards, the upper end face of the frame is pressed and clamped through the horizontal part of the L-shaped rod, vertical displacement of the frame is limited, then after a program is edited for the full-automatic grinding system, grinding operation is automatically conducted, the frame clamping stability is high, the grinding operation is not interfered, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to a grinding fixture, in particular to an automatic grinding fixture for a four-split spacer bar frame. Background Art

[0002] Spacers are hardware that are installed on split conductors to fix the spacing between each split conductor to prevent the conductors from whipping each other and suppress breeze vibration and sub-span oscillation. Spacers are generally installed in the middle of the span, with one installed every 50 to 60 meters. Spacers include spacers for two-split, four-split, six-split, and eight-split conductors.

[0003] Spacer bars are one of the main hardware for overhead transmission lines. They can separate multiple wires and prevent the wires from contacting each other due to various factors, which would damage the power transmission. Its structure mainly includes a frame, a main body, a cover plate and a rod body. The main production process of the frame is casting, and it needs to be polished. However, there are great difficulties in the polishing of the frame at present. Most of them are polished manually. During polishing, the clamping device that fixes the frame interferes with the polishing operation. The position of the clamping device holding the frame needs to be changed in order to fully polish the frame. This is inefficient, the working environment is poor, and it is not conducive to environmental protection, which greatly reduces the production efficiency of the spacer bars. Utility Model Content

[0004] The utility model aims to provide an automatic grinding fixture for a four-split spacer frame, which has the advantages of good fixing and clamping effect and can fully grind the frame in one clamping, thus solving the problem of low efficiency of existing manual grinding.

[0005] The utility model adopts the following technical scheme: an automatic grinding fixture for a four-split spacer bar frame, comprising a base plate, the upper end surface of the base plate being provided with two vertical plates along the left and right directions, the base plate being fixedly provided with a processing table plate through the upper end surfaces of the two vertical plates, the upper end surface of the processing table plate being protrudingly provided with a protrusion matched with the annular groove of the frame, the upper end surface of the protrusion being provided with two through holes matched with the strip holes of the frame, the upper end surface of the base plate being provided with a hydraulic telescopic rod, the output end of the hydraulic telescopic rod being provided with a cross bar, the upper end surface of the cross bar being fixedly provided with two inverted L rods, the vertical portions of the L rods passing upward through the corresponding through holes.

[0006] Furthermore, the two vertical plates are fixed to the bottom plate by bolts.

[0007] Furthermore, an inserting portion is fixedly provided on the lower end surface of the vertical plate, and a clamping portion is provided on the upper end surface of the bottom plate at a position corresponding to the vertical plate.

[0008] Furthermore, the insertion portion includes an inverted trapezoidal block fixedly arranged on the lower end surface of the vertical plate, and the upper end surface of the processing table corresponding to the vertical plate is provided with a rectangular hole along the front-to-back direction, and the clamping portion includes two groups of eccentric wheel groups arranged on the base plate along the length direction of the rectangular hole, and each group of eccentric wheel groups is composed of two eccentric wheels arranged on the base plate along the left-right direction, and the eccentric wheels are rotatably connected to the base plate.

[0009] Furthermore, a handle is fixedly provided on each of the eccentric wheels.

[0010] Furthermore, the corresponding two eccentric wheels in the corresponding two groups of eccentric wheel groups are fixed together through an eccentric shaft, the eccentric shaft is rotatably connected to the base plate, the eccentric wheel is rotatably connected to the base plate through the eccentric shaft, a torsion spring is sleeved on the eccentric shaft between the corresponding two eccentric wheels, one end of the torsion spring is fixed to the eccentric shaft, and the other end of the torsion spring is fixed to the base plate, and the torsion spring drives the eccentric wheel through the eccentric shaft to drive the handle to always rotate in the direction of the vertical plate.

[0011] Furthermore, a butt joint plate is fixedly provided on the handles of the two eccentric wheels in each eccentric wheel group, and a slope is provided on the adjacent side surfaces of the two butt joint plates.

[0012] Furthermore, two avoidance grooves are provided on both sides of the trapezoidal block.

[0013] Furthermore, a receiving plate is arranged between the output end of the hydraulic telescopic rod and the cross bar, the cross bar is slidably arranged on the upper end surface of the receiving plate along the left-right direction, and the bottom surface of the receiving plate is fixedly arranged on the output end of the hydraulic telescopic rod.

[0014] Furthermore, a locking screw is provided on the upper end surface of the cross bar in the vertical direction, and the locking screw is threadedly connected to the cross bar.

[0015] 1. The utility model sets a processing table and sets a raised part on the processing table so that the frame can be inverted on the processing table and the annular groove of the frame fits with the raised part to achieve the initial horizontal displacement restriction of the frame. Then, the L-rod is set so that the L-rod moves downward and clamps the upper end surface of the frame through the horizontal part of the L-rod to limit the upper and lower displacement of the frame. After the program of the fully automatic grinding system is edited, the grinding operation is automatically performed. The frame clamping stability is high, and it does not interfere with the grinding operation, and the production efficiency is high.

[0016] 2. The utility model sets a processing table and a vertical plate, so that the vertical plate is fixed to the bottom plate by bolts, which is convenient for replacing the processing table. When it is necessary to replace the processing table of different sizes, the processing table can be disassembled and replaced by removing the bolts, making the processing table more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the frame in the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom of the frame in the utility model;

[0020] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the processing table in the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the L rod in the utility model;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the bottom plate in the utility model;

[0024] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the bottom plate in the utility model;

[0025] Fig. 9 It is a schematic diagram of the internal structure of the bottom in the utility model;

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the eccentric wheel in the utility model;

[0027] Fig.11 It is a front view structural schematic diagram of the docking plate in the utility model.

[0028] In the figure, 1, frame; 2, annular groove; 3, strip hole; 4, bottom plate; 5, vertical plate; 6, processing table plate; 7, raised part; 8, through hole; 9, hydraulic telescopic rod; 10, cross bar; 11, L rod; 12, bolt; 13, trapezoidal block; 14, eccentric wheel; 15, rectangular hole; 16, handle; 17, eccentric shaft; 18, torsion spring; 19, docking plate; 20, inclined surface; 21, avoidance groove; 22, receiving plate; 23, locking screw. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0030] The existing four-split spacer includes a frame 1 and spacers connected to four corners of the frame 1 . The lower end surface of the frame 1 is provided with an annular groove 2 , and the upper end surface of the frame 1 is provided with a plurality of strip holes 3 connected to the annular groove 2 .

[0031] The automatic grinding fixture for the four-split spacer rod frame described in the utility model includes a base plate 4, and two vertical plates 5 are arranged on the upper end surface of the base plate 4 along the left and right directions. The base plate 4 is fixedly provided with a processing table plate 6 through the upper end surfaces of the two vertical plates 5. The upper end surface of the processing table plate 6 is protrudingly provided with a raised portion 7 that is compatible with the annular groove 2 of the frame 1. The upper end surface of the raised portion 7 is provided with two through holes 8 that are compatible with the strip holes 3 of the frame 1. The upper end surface of the base plate 4 is provided with a hydraulic telescopic rod 9, and the output end of the hydraulic telescopic rod 9 is provided with a cross bar 10. The upper end surface of the cross bar 10 is fixedly provided with two inverted L rods 11, and the vertical portions of the L rods 11 pass upward through the corresponding through holes 8.

[0032] When in use, the frame 1 is turned upside down on the raised portion 7, and the horizontal portion of the L rod 11 passes through the corresponding strip hole 3 of the frame 1. The volume of the raised portion 7 is adapted to the volume of the annular groove 2 of the frame 1, and the raised portion 7 can just enter the annular groove 2 of the frame 1. The raised portion 7 of the processing table 6 is designed according to the size structure of the frame 1, and its contour can just match the annular groove 2 of the frame 1 to ensure that the frame 1 will not move during the grinding process. Then start the hydraulic telescopic rod 9, so that the hydraulic telescopic rod 9 contracts and drives the cross bar 10 to move downward, and the cross bar 10 drives the two L rods 11 to move downward, so that the horizontal portion of the L rod 11 is pressed against the upper end surface of the frame 1, and then the full-automatic grinding system is edited and the grinding operation is automatically performed.

[0033] In order to facilitate the replacement of the processing table 6, in the first embodiment, the two vertical plates 5 are fixed to the base plate 4 by bolts 12; when in use, due to the different sizes of the processed frame 1, the required sizes of the processing table 6 are also different. When the processing table 6 needs to be replaced, the processing table 6 can be replaced by loosening the bolts 12, thereby improving production efficiency.

[0034] In order to facilitate the replacement of the processing table 6, in Example 2, the automatic grinding fixture for the four-split spacer bar frame 1 described in the utility model includes a bottom plate 4, and the upper end surface of the bottom plate 4 is provided with two vertical plates 5 in the left and right directions. The bottom plate 4 is fixedly provided with a processing table 6 through the two vertical plates 5. The upper end surface of the processing table 6 is protrudingly provided with a raised portion 7 that is compatible with the annular groove 2 of the frame 1. The upper end surface of the raised portion 7 is provided with two through holes 8 that are compatible with the strip holes 3 of the frame 1. The upper end surface of the bottom plate 4 is provided with a hydraulic telescopic rod 9. The output of the hydraulic telescopic rod 9 A cross bar 10 is provided at the outlet end, and two inverted L rods 11 are provided on the upper end surface of the cross bar 10, and the vertical parts of the L rods 11 pass upward through the corresponding through holes 8; an insertion part is fixedly provided on the lower end surface of the vertical plate 5, and a clamping part is provided on the upper end surface of the bottom plate 4 at a position corresponding to the vertical plate 5; when installing the processing table 6, the insertion parts of the two vertical plates 5 are inserted into the corresponding clamping parts, so that the clamping parts clamp the insertion parts, and the installation of the processing table 6 can be realized; when disassembling the processing table 6, the clamping part is released, and the vertical plate 5 is pulled out upward to realize the disassembly of the processing table 6.

[0035] In this embodiment, the insertion portion includes an inverted trapezoidal block 13 fixedly arranged on the lower end surface of the vertical plate 5, and a rectangular hole 15 is opened on the upper end surface of the processing table 6 corresponding to the vertical plate 5 along the front-to-back direction. The clamping portion includes two groups of eccentric wheel groups arranged on the bottom plate 4 along the length direction of the rectangular hole 15, and each group of eccentric wheel groups is composed of two eccentric wheels 14 arranged on the bottom plate 4 along the left-right direction, and the eccentric wheels 14 are rotatably connected to the bottom plate 4; when installing the processing table 6, the trapezoidal blocks 13 of the two vertical plates 5 are inserted into the corresponding two groups of eccentric wheel groups, so that the two eccentric wheels 14 in each group rotate towards each other, thereby realizing the clamping of the trapezoidal blocks 13 by the two eccentric wheels 14, and realizing the installation of the processing table 6. The two side surfaces of the trapezoidal blocks 13 can be set as friction surfaces to increase friction, and then the frame 1 is inverted on the raised portion 7, and the L rod is made The horizontal part of 11 passes through the strip hole 3 corresponding to the frame 1, and the volume of the raised part 7 is adapted to the volume of the annular groove 2 of the frame 1. Then the hydraulic telescopic rod 9 is started, so that the hydraulic telescopic rod 9 contracts and drives the cross bar 10 to move downward, and the cross bar 10 drives the two L rods 11 to move downward, so that the horizontal part of the L rod 11 is pressed against the upper end surface of the frame 1. In the process of the L rod 11 pressing the frame 1, the trapezoidal block 13 is further clamped tighter by the corresponding two groups of eccentric wheel groups. Then, after the program of the fully automatic grinding system is edited, the grinding operation is automatically performed. When disassembling the processing table 6, the eccentric wheel 14 is rotated by the handle 16 fixed on the eccentric wheel 14, so that the handle 16 of the eccentric wheel 14 is rotated in the direction away from the vertical plate 5, the trapezoidal block 13 can be pulled out, and then the processing table 6 is pulled out, so that the processing table 6 is convenient to replace.

[0036] In order to increase the clamping force of the eccentric wheel 14, in the present embodiment, the corresponding two eccentric wheels 14 in the corresponding two groups of eccentric wheel groups are fixedly arranged together by an eccentric shaft 17, and the eccentric shaft 17 is rotatably connected to the base plate 4. The eccentric wheel 14 is rotatably connected to the base plate 4 by the eccentric shaft 17. A torsion spring 18 is sleeved on the eccentric shaft 17 between the corresponding two eccentric wheels 14. One end of the torsion spring 18 is fixedly arranged on the eccentric shaft 17, and the other end of the torsion spring 18 is fixedly arranged on the base plate 4. The torsion spring 18 drives the eccentric wheel 14 through the eccentric shaft 17 to drive the handle 16 to always rotate in the direction of the vertical plate 5; a docking plate 19 is fixedly arranged on the handles 16 of the two eccentric wheels 14 in each group of eccentric wheel groups, and a side surface of the two docking plates 19 close to each other is provided with an inclined surface 20. The corresponding two eccentric wheels 14 rotate towards each other under the drive of the torsion spring 18 until the two docking plates 19 are docked together. At this time, the two pairs of The inclined surface 20 of the connecting plate 19 forms a V-shaped groove; when installing the processing table 6, the trapezoidal block 13 is inserted downward into the V-shaped groove to force the two connecting plates 19 to separate, and then the corresponding two eccentric wheels 14 are driven to rotate in opposite directions through the handle 16 until the trapezoidal block 13 is inserted downward between the corresponding two eccentric wheels 14. The corresponding two eccentric wheels 14 rotate toward each other under the action of the downward insertion of the trapezoidal block 13, so that the two eccentric wheels 14 clamp the trapezoidal block 13. When the corresponding two eccentric wheels 14 rotate toward each other, in order to prevent the trapezoidal block 13 from interfering with the movement of the connecting plate 19 and then interfering with the rotation of the eccentric wheel 14, two avoidance grooves 21 are provided on both sides of the trapezoidal block 13. When the corresponding two eccentric wheels 14 rotate toward each other under the action of the downward insertion of the trapezoidal block 13, the connecting plate 19 moves toward each other and enters the avoidance groove 21 of the trapezoidal block 13 without interfering with the rotation of the eccentric wheel 14.

[0037] In order to achieve the purpose of adjusting the left and right position of the cross bar 10, in this embodiment, a receiving plate 22 is arranged between the output end of the hydraulic telescopic rod 9 and the cross bar 10, and the cross bar 10 is slidably arranged on the upper end surface of the receiving plate 22 along the left and right directions. The bottom surface of the receiving plate 22 is fixed to the output end of the hydraulic telescopic rod 9, and a locking screw 23 is arranged on the upper end surface of the cross bar 10 in the vertical direction. The locking screw 23 is threadedly connected to the cross bar 10; by rotating the locking screw 23, the bottom end of the locking screw 23 moves downward and contacts the upper end surface of the receiving plate 22, thereby achieving the fixation of the relative position of the cross bar 10 and the receiving plate 22.

[0038] The working principle of the utility model is as follows: the frame 1 is buckled on the raised portion 7, and the horizontal portion of the L rod 11 passes through the corresponding strip hole 3 of the frame 1, the volume of the raised portion 7 is adapted to the volume of the annular groove 2 of the frame 1, and then the hydraulic telescopic rod 9 is started, so that the hydraulic telescopic rod 9 is contracted to drive the cross bar 10 to move downward, and the cross bar 10 drives the two L rods 11 to move downward, so that the horizontal portion of the L rod 11 is pressed against the upper end surface of the frame 1, and then the fully automatic grinding system is programmed to automatically perform the grinding operation. When the processing table 6 needs to be replaced, the eccentric is rotated by the handle 16. Wheel 14, so that the corresponding two eccentric wheels 14 rotate in opposite directions, the trapezoidal block 13 can be pulled out upwards, and then the processing table plate 6 can be pulled out, and then the processing table plate 6 to be replaced is inserted between the corresponding two groups of eccentric wheels through the two trapezoidal blocks 13, so that the corresponding two eccentric wheels 14 clamp the trapezoidal block 13, and the processing table plate 6 can be installed. During use, when the position of the L rod 11 is not suitable, the position of the L rod 11 can be adjusted by loosening the locking screw 23 and sliding the cross bar 10 left and right, so that the horizontal part of the L rod 11 can press the frame 1 downward.

Claims

1. A four-split spacer frame automatic grinding fixture, characterized by: The invention comprises a bottom plate (4), the upper end surface of the bottom plate (4) being provided with two vertical plates (5) in the left-right direction, the bottom plate (4) being fixedly provided with a processing table plate (6) through the upper end surfaces of the two vertical plates (5), the upper end surface of the processing table plate (6) being provided with a protruding portion (7) matching with the annular groove (2) of the frame (1), the upper end surface of the protruding portion (7) being provided with two through holes (8) matching with the strip holes (3) of the frame (1), the upper end surface of the bottom plate (4) being provided with a hydraulic telescopic rod (9), the output end of the hydraulic telescopic rod (9) being provided with a cross bar (10), the upper end surface of the cross bar (10) being fixedly provided with two inverted L rods (11), the vertical portions of the L rods (11) passing upward through the corresponding through holes (8).

2. The automatic grinding fixture for the four-split spacer frame according to claim 1 is characterized in that: The two vertical plates (5) are fixed to the bottom plate (4) via bolts (12).

3. The automatic grinding fixture for the four-split spacer frame according to claim 1 is characterized in that: An insertion portion is fixedly provided on the lower end surface of the vertical plate (5), and a clamping portion is provided on the upper end surface of the bottom plate (4) at a position corresponding to the vertical plate (5).

4. The automatic grinding fixture for the four-split spacer frame according to claim 3 is characterized in that: The insertion portion comprises an inverted trapezoidal block (13) fixedly arranged on the lower end surface of the vertical plate (5); the upper end surface of the processing table (6) corresponding to the vertical plate (5) is provided with a rectangular hole (15) in the front-to-back direction; the clamping portion comprises two groups of eccentric wheel groups arranged on the bottom plate (4) along the length direction of the rectangular hole (15); each group of eccentric wheel groups is composed of two eccentric wheels (14) arranged on the bottom plate (4) in the left-right direction; and the eccentric wheels (14) are rotatably connected to the bottom plate (4).

5. The automatic grinding fixture for the four-split spacer frame according to claim 4 is characterized in that: A handle (16) is fixedly provided on each eccentric wheel (14).

6. The automatic grinding fixture for the four-split spacer frame according to claim 5 is characterized in that: The two corresponding eccentric wheels (14) in the two corresponding eccentric wheel groups are fixed together via an eccentric shaft (17), the eccentric shaft (17) is rotatably connected to the bottom plate (4), the eccentric wheel (14) is rotatably connected to the bottom plate (4) via the eccentric shaft (17), a torsion spring (18) is sleeved on the eccentric shaft (17) between the two corresponding eccentric wheels (14), one end of the torsion spring (18) is fixedly arranged on the eccentric shaft (17), and the other end of the torsion spring (18) is fixedly arranged on the bottom plate (4), and the torsion spring (18) drives the eccentric wheel (14) via the eccentric shaft (17) to drive the handle (16) to rotate in the direction of the vertical plate (5) all the time.

7. The automatic grinding fixture for the four-split spacer frame according to claim 6 is characterized in that: A butt joint plate (19) is fixedly provided on the handles (16) of the two eccentric wheels (14) in each eccentric wheel group, and a slope (20) is provided on the adjacent side surfaces of the two butt joint plates (19).

8. The automatic grinding fixture for the four-split spacer frame according to claim 7 is characterized in that: Two avoidance grooves (21) are provided on both sides of the trapezoidal block (13).

9. The automatic grinding fixture for the four-split spacer frame according to claim 1 is characterized in that: A receiving plate (22) is provided between the output end of the hydraulic telescopic rod (9) and the cross bar (10); the cross bar (10) is slidably arranged on the upper end surface of the receiving plate (22) in the left-right direction; and the bottom surface of the receiving plate (22) is fixedly arranged on the output end of the hydraulic telescopic rod (9).

10. The automatic grinding fixture for the four-split spacer frame according to claim 9, characterized in that: A locking screw (23) is provided on the upper end surface of the cross bar (10) in the vertical direction, and the locking screw (23) is threadedly connected to the cross bar (10).

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