A hydraulic clamp for boring a flight for an underground flight conveyor
Patent Information
- Application Number
- CN202521920775.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-08
AI Technical Summary
现有技术中，对刮板进行钻孔、鍃沉孔时，无论采用划线或钻模钻孔需要把刮板顶面作为基准面，即将刮板顶面水平放在操作台上，将刮板底面向上放置，然后从底面向顶面钻孔，之后再将刮板翻转180°，将底面水平放置在操作台上，将顶面向上放置，再在顶面上锪沉孔，因为刮板底面不是一个平面，存在鍃沉孔时工件装夹不平稳，鍃沉孔精度不精确，而且钻孔完后需将工件翻转一次才能进行锪孔加工，生产效率低
[0012]本实用新型的有益效果是：可适用于各种规格型号的井下刮板输送机用刮板产品的装夹，适应性高，一次可同时装夹两件刮板产品并在一次装夹后不需翻转即可完成钻孔和锪孔加工，同时使用浮动定位、液压快速夹紧，定位精度、可靠性及自动化程度高，而且操作简便，极大地提高了生产效率，特别适合井下刮板输送机用刮板钻孔加工的高精度、高效率和批量化生产。
Smart Images
Figure CN224795206U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining and fixture technology, and is a hydraulic clamping fixture for scraper drilling, specifically a hydraulic clamping fixture for scraper drilling in underground scraper conveyors. Background Technology
[0002] Scrapers used in underground mining scraper conveyors are key components of scraper conveyors and transfer conveyors. They are connected by chains and used to transport coal in underground mining faces. Their structure is made of forged blanks with many curved surfaces and complex shapes. The machining process only involves drilling and countersinking. The rest are mainly heat treatment processes such as tempering and surface quenching at both ends. Due to the harsh operating conditions and large demand for spare parts, scraper production is carried out in batches. Its production characteristics are relatively simple machining, large production batches, and high output and efficiency requirements. In existing technologies, when drilling and countersinking scrapers, regardless of whether scribing or drilling jigs are used, the top surface of the scraper must be used as a reference surface. This involves placing the scraper top surface horizontally on the worktable with the bottom surface facing upwards, then drilling from the bottom to the top surface. Afterwards, the scraper is rotated 180°, placed horizontally on the worktable with the bottom surface facing upwards, and countersinking is performed on the top surface. Because the bottom surface of the scraper is not a flat plane, the workpiece is not stably clamped during countersinking, resulting in inaccurate countersinking accuracy. Furthermore, the workpiece must be rotated once after drilling before countersinking, leading to low production efficiency. Therefore, a high-precision, easy-to-operate fixture that meets the requirements for efficient production is needed to solve the problem of efficient production of scraper drilling for underground scraper conveyors. Summary of the Invention
[0003] The purpose of this utility model is to provide a hydraulic clamp for drilling holes in underground scraper conveyors, so as to overcome the shortcomings of the existing technology and meet the needs of high precision, high efficiency and mass production of drilling holes in underground scraper conveyors.
[0004] The technical solution adopted in this utility model is as follows: the hydraulic clamp for drilling holes with scraper conveyors in underground wells is composed of a left clamp body 1, a middle clamp body 2, and a right clamp body 3. The X-axis position of the left clamp body 1, the middle clamp body 2, and the right clamp body 3 is adjusted according to different specifications of scraper. The clamps are installed on the machine tool operating table, the Y-axis position is fixed with positioning key 23, and they are tightened with T-slot bolts and nuts.
[0005] The left clamping body 1 has a rotary clamping mechanism 16, two side clamping mechanisms 9, a longitudinal limiting bracket 10, and a longitudinal positioning mechanism 12 installed on the left support 5. The rotary clamping mechanism 16 is installed on the upper right side of the left support 5 and is fastened with screws 15 to simultaneously clamp the two scraper 4 workpieces; the side clamping mechanisms 9 are installed on the T-slots on both sides of the upper end of the left support 5, and the clamping position is adjusted left and right according to the different specifications of the scraper 4 and clamped, and fastened with T-slot bolts 13 and nuts 14; the limiting brackets 10 are installed on the front and rear sides of the upper end of the left support 5 to longitudinally limit the scraper 4; the longitudinal positioning mechanism 12 is installed on the upper left side of the left support 5 and is fastened with screws 15 to longitudinally position the scraper 4.
[0006] The right clamping body 3 has a limiting bracket 8, two side clamping mechanisms 9, a longitudinal limiting bracket 10, a transverse positioning mechanism 11, and a longitudinal positioning mechanism 12 installed on the right support 7. The side clamping mechanisms 9 are installed at the T-slots on both sides of the upper end of the right support 7, and can be adjusted left and right to clamp according to different specifications of scraper 4. They are fastened with T-slot bolts 13 and nuts 14. The limiting bracket 8 is installed on the right side of the upper end of the right support 7 to limit the transverse movement of the scraper 4. The longitudinal limiting bracket 10 is installed on the front and rear sides of the upper end of the right support 7 to limit the longitudinal movement of the scraper 4. The transverse positioning mechanism 11 and the longitudinal positioning mechanism 12 are installed on the left and right sides of the middle of the upper end of the right support 7 and are fastened with screws 15 to position the scraper 4 transversely and longitudinally.
[0007] The middle clamp body 2 consists of a middle support 6, a fastening nut 32, and a screw 39. The screw 39 is installed in the threaded holes on both sides of the upper end of the middle support 6. The height position is adjusted according to the scraper 4 of different specifications, and then fastened with the fastening nut 32.
[0008] The rotary clamping mechanism 16 consists of a support flange 33, support screws 34, fastening nuts 32, a corner cylinder 35, a cylindrical pin 36, a pressure plate 37, and a pressure head 38. The support screws 34 are installed in the threaded holes of the support flange 33 and their height is adjusted according to the scraper 4 of different specifications. They are then locked with the fastening nuts 32. The pressure plate 37 is connected to the piston rod of the corner cylinder 35 through the cylindrical pins 36. The pressure head 38 is installed in the threaded holes at both ends of the pressure plate 37 and is locked with the fastening nuts 32. The support flange 33 and the corner cylinder 35 are installed on the left support 5. Its working principle is as follows: In the normal working state, the rodless chamber of the angle cylinder 35 is filled with liquid, so that the piston rod is at the top and drives the pressure plate 37 and the scraper 4 workpiece to be in a parallel state. After the two workpiece scrapers 4 are installed and positioned, the rod chamber of the angle cylinder 35 is filled with liquid, the piston rod retracts and rotates, driving the pressure plate 37 and the pressure head 38 to descend and rotate. When it rotates to 90 degrees, the piston rod continues to retract until the pressure head 38 presses the two workpiece scrapers 4 together. When the rodless chamber of the angle cylinder 35 is filled with liquid, the piston rod extends and rotates, driving the pressure plate 37 and the pressure head 38 to rise and rotate. When the piston rod extends to the top and rotates 90 degrees, it drives the pressure plate 37 and the pressure head 38 to rise to the top and be in a parallel position with the scraper 4. The rotary pressing mechanism 16 is in the normal working state and can load and unload the scraper 4.
[0009] The side clamping mechanism 9 consists of a support block 24, a telescopic cylinder 25, a connecting frame 26, a pin 27, a locking nut 28, a clamping block 29, a support 30, a support rod 31, a fastening nut 32, and bolts 17. The telescopic cylinder 25 is installed on the outside of the support block 24 and fastened with bolts 17. The piston rod end is installed on the connecting frame 26 and connected by threads, and fastened with locking nut 28. The support 30 is installed in the middle of the support block 24 and fastened with screws 15. The left end of the clamping block 29 is connected to the upper end of the connecting frame 26 by a pin 27, and the lower end is connected to the upper end of the support 30 by a pin 27, forming a lever mechanism. The support rod 31 is installed in the threaded hole on the inside of the support block 24, and its position corresponds to the left end clamping center of the clamping block 29. Its height is adjusted according to different specifications of scraper 4, and it is fastened with fastening nut 32. Its working principle is as follows: In the normal working state of the side clamping mechanism 9, the rod chamber of the telescopic cylinder 25 is filled with liquid, so that the piston rod is at the bottom end, and drives the left end of the clamping block 29 to the lowest end. Under the action of the lever mechanism, the right end of the clamping block 29 rises to the highest end. After the two workpiece scrapers 4 are installed and positioned, the rodless chamber of the telescopic cylinder 25 is filled with liquid, the piston rod extends and drives the left end of the clamping block 29 to rise. Under the action of the lever mechanism, the right end of the clamping block 29 descends until it clamps the two workpiece scrapers 4. When the rod chamber of the telescopic cylinder 25 is filled with liquid, the piston rod retracts, and the left end of the clamping block 29 descends and the right end rises until the side clamping mechanism 9 is in the normal working state, and the scrapers 4 can be loaded and unloaded.
[0010] The transverse positioning mechanism 11 and the longitudinal positioning mechanism 12 are respectively composed of a transverse flange 40, a transverse positioning pin 41, a longitudinal flange 18, a longitudinal positioning pin 20, a spring 19, a sealing ring 21, and a limiting pin 22. The spring 19, the longitudinal positioning pin 20, and the transverse positioning pin 41 are respectively installed in the holes of the longitudinal flange 18 and the transverse flange 40. The sealing ring 21 is installed in the groove at the upper end of the longitudinal flange 18 and the transverse flange 40. The limiting pin 22 is installed in the screw hole on the side of the longitudinal flange 18 and the transverse flange 40, and its top end is inserted into the groove of the longitudinal positioning pin 20 and the transverse positioning pin 41 to restrict the circumferential rotation of the longitudinal positioning pin 20 and the transverse positioning pin 41. Under the action of the spring 19, the longitudinal positioning pin 20 and the transverse positioning pin 41 can float up and down to accurately position the scraper 4.
[0011] The working principle of the hydraulic clamp for drilling scraper conveyors in underground mines: Adjust the X-axis positions of the left clamping body 1, middle clamping body 2, and right clamping body 3 according to the specific dimensions of the scraper 4, fix them on the CNC machine tool worktable, and adjust and tighten the positions of the side clamping mechanism 9, support screw 34, limit bracket 8, and screw 39. Mount the two scraper plates 4 onto the hydraulic clamp for drilling scraper conveyors in underground mines. The support screw 34 positions and limits the scraper plates 4 in the vertical direction. The lateral positioning mechanism 11 and longitudinal positioning mechanism 12 accurately position the scraper plates 4 laterally and longitudinally under the floating function. The longitudinal limit bracket 10 and limit bracket 8 limit the scraper plates 4 longitudinally and laterally. The corner cylinder... The rod chamber of cylinder 35 is filled with liquid to activate the rotary clamping mechanism 16, which drives the pressure plate 37 and the pressure head 38 to descend and rotate until they rotate 90 degrees and clamp the two scrapers 4. Then, the rodless chamber of the telescopic cylinder 25 is filled with liquid to activate the side clamping mechanism 9, which clamps the two scrapers 4 and completes the clamping of the scraper 4 workpiece. The machine tool is then started to complete the drilling and countersinking processes of the scraper 4 workpiece. First, the side clamping mechanism 9 is activated, and the rod chamber of the telescopic cylinder 25 is filled with liquid to put it into working condition. Then, the rotary clamping mechanism 16 is activated, and the rodless chamber of the corner cylinder 35 is filled with liquid to put it into working condition. The scraper 4 workpiece is then disassembled. The above steps of clamping, drilling, and disassembling the scraper 4 are repeated continuously to perform the drilling and countersinking processes of the scraper 4 workpiece.
[0012] The beneficial effects of this utility model are: it can be applied to the clamping of scraper products for underground scraper conveyors of various specifications and models, with high adaptability. Two scraper products can be clamped at the same time, and drilling and countersinking can be completed without flipping after clamping. At the same time, it uses floating positioning and hydraulic fast clamping, with high positioning accuracy, reliability and automation. Moreover, it is easy to operate, which greatly improves production efficiency. It is especially suitable for high-precision, high-efficiency and mass production of scraper drilling for underground scraper conveyors. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1This is an isometric schematic diagram of the machining state of a hydraulic clamp for drilling holes in an underground scraper conveyor according to this utility model. Figure 2 This is a front view schematic diagram of a hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to this utility model; Figure 3 This is a top view schematic diagram of a hydraulic clamp for drilling holes in an underground scraper conveyor according to the present invention. Figure 4 This is a schematic AA cross-sectional view of a hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to this utility model. Figure 5 This is a BB cross-sectional schematic diagram of a hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to this utility model; Figure 6 This is a CC cross-sectional schematic diagram of a hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to the present invention; Figure 7 This is a DD cross-sectional schematic diagram of a hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to this utility model; Figure 8 This is a schematic cross-sectional view of the hydraulic clamp for drilling scraper holes in an underground scraper conveyor according to the present invention. Figure 9 This is a schematic diagram of the loading and unloading state of a hydraulic clamp for drilling scraper conveyors in underground wells, according to this utility model. In the diagram: 1. Left clamping body, 2. Middle clamping body, 3. Right clamping body, 5. Left support, 6. Middle support, 7. Right support, 8. Limiting bracket, 9. Side clamping mechanism, 10. Longitudinal limiting bracket, 11. Lateral positioning mechanism, 12. Longitudinal positioning mechanism, 13. T-slot bolt, 14. Nut, 15. Screw, 16. Rotary clamping mechanism, 17. Bolt, 18. Longitudinal flange, 19. Spring, 20. Longitudinal locating pin, 2 1. Sealing ring, 22. Limit pin, 23. Positioning key, 24. Support block, 25. Telescopic cylinder, 26. Connecting frame, 27. Pin, 28. Locking nut, 29. Clamping block, 30. Support, 31. Support rod, 32. Fastening nut, 33. Support flange, 34. Support screw, 35. Angle cylinder, 36. Cylindrical pin, 37. Pressure plate, 38. Pressure head, 39. Screw, 40. Transverse flange, 41. Transverse positioning pin. Detailed Implementation
[0014] like Figure 1 , 2As shown in Figure 3, the hydraulic clamp for drilling holes with scraper conveyors in underground wells consists of a left clamp body 1, a middle clamp body 2, and a right clamp body 3. The X-axis position of the left clamp body 1, the middle clamp body 2, and the right clamp body 3 is adjusted according to different specifications of scraper. The clamps are installed on the machine tool operating table, the Y-axis position is fixed with positioning key 23, and they are tightened with T-slot bolts and nuts.
[0015] The left clamping body 1 has a rotary clamping mechanism 16, two side clamping mechanisms 9, a longitudinal limiting bracket 10, and a longitudinal positioning mechanism 12 installed on the left support 5. The rotary clamping mechanism 16 is installed on the upper right side of the left support 5 and is fastened with screws 15 to simultaneously clamp the two scraper 4 workpieces; the side clamping mechanisms 9 are installed on the T-slots on both sides of the upper end of the left support 5, and the clamping position is adjusted left and right according to the different specifications of the scraper 4 and clamped, and fastened with T-slot bolts 13 and nuts 14; the limiting brackets 10 are installed on the front and rear sides of the upper end of the left support 5 to longitudinally limit the scraper 4; the longitudinal positioning mechanism 12 is installed on the upper left side of the left support 5 and is fastened with screws 15 to longitudinally position the scraper 4.
[0016] The right clamping body 3 has a limiting bracket 8, two side clamping mechanisms 9, a longitudinal limiting bracket 10, a transverse positioning mechanism 11, and a longitudinal positioning mechanism 12 installed on the right support 7. The side clamping mechanisms 9 are installed at the T-slots on both sides of the upper end of the right support 7, and can be adjusted left and right to clamp according to different specifications of scraper 4. They are fastened with T-slot bolts 13 and nuts 14. The limiting bracket 8 is installed on the right side of the upper end of the right support 7 to limit the transverse movement of the scraper 4. The longitudinal limiting bracket 10 is installed on the front and rear sides of the upper end of the right support 7 to limit the longitudinal movement of the scraper 4. The transverse positioning mechanism 11 and the longitudinal positioning mechanism 12 are installed on the left and right sides of the middle of the upper end of the right support 7 and are fastened with screws 15 to position the scraper 4 transversely and longitudinally.
[0017] like Figure 7 As shown, the middle clamp body 2 consists of a middle support 6, a fastening nut 32, and a screw 39. The screw 39 is installed in the threaded holes on both sides of the upper end of the middle support 6. The height position is adjusted according to the scraper 4 of different specifications, and then fastened with the fastening nut 32.
[0018] The hydraulic clamp for drilling scraper products for underground scraper conveyors is applicable to the clamping of scraper products of various specifications and models. It has high adaptability and can clamp two scraper products at the same time. Drilling and countersinking can be completed without flipping after clamping. It uses floating positioning and hydraulic fast clamping, which has high positioning accuracy and reliability. Equipped with a control system, it realizes automated operation and fully meets the needs of high precision, high efficiency and mass production.
[0019] like Figure 6As shown, the rotary clamping mechanism 16 consists of a support flange 33, support screws 34, fastening nuts 32, a rotary cylinder 35, a cylindrical pin 36, a pressure plate 37, and a pressure head 38. The support screws 34 are installed in the threaded holes of the support flange 33, and their height is adjusted according to the scraper 4 of different specifications. They are then locked with the fastening nuts 32. The pressure plate 37 is connected to the piston rod of the rotary cylinder 35 through the cylindrical pins 36. The pressure head 38 is installed in the threaded holes at both ends of the pressure plate 37 and is locked with the fastening nuts 32. The support flange 33 and the rotary cylinder 35 are installed on the left support 5. Its working principle is as follows: In the normal working state, the rodless chamber of the angle cylinder 35 is filled with liquid, so that the piston rod is at the top and drives the pressure plate 37 and the scraper 4 workpiece to be in a parallel state. After the two workpiece scrapers 4 are installed and positioned, the rod chamber of the angle cylinder 35 is filled with liquid, the piston rod retracts and rotates, driving the pressure plate 37 and the pressure head 38 to descend and rotate. When it rotates to 90 degrees, the piston rod continues to retract until the pressure head 38 presses the two workpiece scrapers 4 together. When the rodless chamber of the angle cylinder 35 is filled with liquid, the piston rod extends and rotates, driving the pressure plate 37 and the pressure head 38 to rise and rotate. When the piston rod extends to the top and rotates 90 degrees, it drives the pressure plate 37 and the pressure head 38 to rise to the top and be in a parallel position with the scraper 4. The rotary pressing mechanism 16 is in the normal working state and can load and unload the scraper 4.
[0020] like Figure 5 As shown, the side clamping mechanism 9 consists of a support block 24, a telescopic cylinder 25, a connecting frame 26, a pin 27, a locking nut 28, a clamping block 29, a support 30, a support rod 31, a fastening nut 32, and bolts 17. The telescopic cylinder 25 is installed on the outside of the support block 24 and fastened with bolts 17. The piston rod end is installed on the connecting frame 26 and connected by threads, and fastened with locking nut 28. The support 30 is installed in the middle of the support block 24 and fastened with screws 15. The left end of the clamping block 29 is connected to the upper end of the connecting frame 26 by a pin 27, and the lower end is connected to the upper end of the support 30 by a pin 27, forming a lever mechanism. The support rod 31 is installed in the threaded hole on the inside of the support block 24, and its position corresponds to the left end clamping center of the clamping block 29. Its height is adjusted according to different specifications of scraper 4, and it is fastened with fastening nut 32. Its working principle is as follows: In the normal working state of the side clamping mechanism 9, the rod chamber of the telescopic cylinder 25 is filled with liquid, so that the piston rod is at the bottom end, and drives the left end of the clamping block 29 to the lowest end. Under the action of the lever mechanism, the right end of the clamping block 29 rises to the highest end. After the two workpiece scrapers 4 are installed and positioned, the rodless chamber of the telescopic cylinder 25 is filled with liquid, the piston rod extends and drives the left end of the clamping block 29 to rise. Under the action of the lever mechanism, the right end of the clamping block 29 descends until it clamps the two workpiece scrapers 4. When the rod chamber of the telescopic cylinder 25 is filled with liquid, the piston rod retracts, and the left end of the clamping block 29 descends and the right end rises until the side clamping mechanism 9 is in the normal working state, and the scrapers 4 can be loaded and unloaded.
[0021] like Figure 4 , 8As shown, the transverse positioning mechanism 11 and the longitudinal positioning mechanism 12 are respectively composed of a transverse flange 40, a transverse positioning pin 41, a longitudinal flange 18, a longitudinal positioning pin 20, a spring 19, a sealing ring 21, and a limiting pin 22. The spring 19, the longitudinal positioning pin 20, and the transverse positioning pin 41 are respectively installed in the holes of the longitudinal flange 18 and the transverse flange 40; the sealing ring 21 is installed in the groove at the upper end of the longitudinal flange 18 and the transverse flange 40; the limiting pin 22 is installed in the screw hole on the side of the longitudinal flange 18 and the transverse flange 40, and its top end is inserted into the groove of the longitudinal positioning pin 20 and the transverse positioning pin 41 to restrict the circumferential rotation of the longitudinal positioning pin 20 and the transverse positioning pin 41; under the action of the spring 19, the longitudinal positioning pin 20 and the transverse positioning pin 41 can float up and down to accurately position the scraper 4.
[0022] like Figure 1 , 9 As shown, the working principle of the hydraulic clamp for drilling scraper conveyors in underground wells is as follows: Adjust the X-axis positions of the left clamping body 1, the middle clamping body 2, and the right clamping body 3 according to the specific dimensions of the scraper 4, fix them on the CNC machine tool worktable, and adjust and tighten the positions of the side clamping mechanism 9, support screw 34, limit bracket 8, and screw 39. Mount the two scraper 4 onto the hydraulic clamp for drilling scraper conveyors in underground wells. The support screw 34 positions and limits the scraper 4 in the vertical direction. The lateral positioning mechanism 11 and the longitudinal positioning mechanism 12 accurately position the scraper 4 laterally and longitudinally under the floating function. The longitudinal limit bracket 10 and the limit bracket 8 limit the scraper 4 in the longitudinal and lateral directions. (The last sentence appears to be incomplete and possibly refers to a different process.) The rod chamber of cylinder 35 is filled with liquid to activate the rotary clamping mechanism 16, which drives the pressure plate 37 and the pressure head 38 to descend and rotate until they rotate 90 degrees and clamp the two scrapers 4. Then, the rodless chamber of telescopic cylinder 25 is filled with liquid to activate the side clamping mechanism 9, which clamps the two scrapers 4 and completes the clamping of the scraper 4 workpiece. The machine tool is started to complete the drilling and countersinking processes of the scraper 4 workpiece. First, the side clamping mechanism 9 is activated, and the rod chamber of telescopic cylinder 25 is filled with liquid to put it into working condition. Then, the rotary clamping mechanism 16 is activated, and the rodless chamber of the corner cylinder 35 is filled with liquid to put it into working condition. The scraper 4 workpiece is disassembled. The above steps of clamping, drilling, and disassembling scraper 4 are repeated to continuously perform drilling and countersinking processes on scraper 4 workpieces.
[0023] It should be understood that the above detailed description of the technical solutions of this utility model with reference to embodiments is illustrative and not restrictive. Those skilled in the art can modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features based on reading this specification; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A hydraulic clamp for drilling holes in an underground scraper conveyor, characterized in that: It consists of a left clamping body (1), a middle clamping body (2), and a right clamping body (3). The X-axis position of the left clamping body (1), the middle clamping body (2), and the right clamping body (3) is adjusted according to different specifications of scrapers. It is installed on the machine tool operating table, and the Y-axis position is fixed with positioning keys (23). It is tightened with T-slot bolts and nuts.
2. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The left clamping body (1) has a rotary clamping mechanism (16) and two side clamping mechanisms (9), a longitudinal limiting bracket (10), and a longitudinal positioning mechanism (12) installed on the left support (5). The rotary clamping mechanism (16) is installed on the right side of the middle of the upper end of the left support (5) and is fastened with screws (15) to clamp the two scraper (4) workpieces at the same time. The side clamping mechanism (9) is installed on the T-shaped grooves on both sides of the upper end of the left support (5). The clamping position is adjusted left and right according to the different specifications of the scraper (4) and clamped. It is fastened with T-shaped groove bolts (13) and nuts (14). The longitudinal limiting bracket (10) is installed on the front and rear sides of the upper end of the left support (5) to longitudinally limit the scraper (4). The longitudinal positioning mechanism (12) is installed on the left side of the middle of the upper end of the left support (5) and is fastened with screws (15) to longitudinally position the scraper (4).
3. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The right clamp (3) is installed on the right support (7) with a limiting bracket (8), two side pressing mechanisms (9), a longitudinal limiting bracket (10), a transverse positioning mechanism (11) and a longitudinal positioning mechanism (12); the side pressing mechanism (9) is installed on the T-shaped grooves on both sides of the upper end of the right support (7), and can be adjusted left and right according to different specifications of scraper (4) and pressed, and is fastened with T-shaped groove bolts (13) and nuts (14); the limiting bracket (8) is installed on the right side of the upper end of the right support (7) to limit the scraper (4) laterally, the longitudinal limiting bracket (10) is installed on the front and rear sides of the upper end of the right support (7) to limit the scraper (4) longitudinally, the transverse positioning mechanism (11) and the longitudinal positioning mechanism (12) are installed on the left and right sides of the middle of the upper end of the right support (7), and are fastened with screws (15) to position the scraper (4) laterally and longitudinally.
4. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The middle clamp (2) consists of a middle support (6), a fastening nut (32), and a screw (39). The screw (39) is installed in the threaded holes on both sides of the upper end of the middle support (6). The height position is adjusted according to the scraper (4) of different specifications, and then fastened with the fastening nut (32).
5. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The rotary clamping mechanism (16) consists of a support flange (33), support screws (34), fastening nuts (32), a corner cylinder (35), a cylindrical pin (36), a pressure plate (37), and a pressure head (38). The support screws (34) are installed in the threaded holes of the support flange (33), and the height is adjusted according to the scraper (4) of different specifications. The pressure plate (37) is connected to the piston rod of the corner cylinder (35) through the cylindrical pin (36). The pressure head (38) is installed in the threaded holes at both ends of the pressure plate (37) and is locked with the fastening nuts (32). The support flange (33) and the corner cylinder (35) are installed on the left support (5). Its working principle is as follows: the normal working state of the rotary clamping mechanism (16) is that the corner cylinder (35) is rodless. The cavity is filled with liquid so that the piston rod is at the top and drives the pressure plate (37) and the scraper (4) to be in a parallel state. After the two workpiece scrapers (4) are installed and positioned, the rod chamber of the corner cylinder (35) is filled with liquid, the piston rod retracts and rotates, driving the pressure plate (37) and the pressure head (38) to descend and rotate. When it rotates to 90 degrees, the piston rod continues to retract until the pressure head (38) presses the two workpiece scrapers (4) together. The rodless chamber of the corner cylinder (35) is filled with liquid, the piston rod extends and rotates, driving the pressure plate (37) and the pressure head (38) to rise and rotate. When the piston rod extends to the top and rotates 90 degrees, it drives the pressure plate (37) and the pressure head (38) to rise to the top and be in a parallel position with the scraper (4). The rotating pressing mechanism (16) is in normal working condition and can load and unload the scraper (4).
6. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The side clamping mechanism (9) consists of a support block (24), a telescopic cylinder (25), a connecting frame (26), a pin (27), a locking nut (28), a clamping block (29), a support (30), a support rod (31), a fastening nut (32), and bolts (17). The telescopic cylinder (25) is installed on the outside of the support block (24) and fastened with bolts (17). The piston rod end is installed with the connecting frame (26) and connected by threads. The locking nut (28) is fastened. The support (30) is installed in the middle of the support block (24) and fastened with screws (15). The left end of the clamping block (29) is connected to the upper end of the connecting frame (26) with a pin (27), and the lower end is connected to the upper end of the support (30) with a pin (27) to form a lever mechanism. The support rod (31) is installed in the threaded hole on the inside of the support block (24) and is positioned relative to the clamping block (29). The left end is pressed to the center. The height position is adjusted according to the different specifications of the scraper (4) and tightened with the fastening nut (32). Its working principle is as follows: The normal working state of the side pressing mechanism (9) is that the rod chamber of the telescopic cylinder (25) is filled with liquid so that the piston rod is at the bottom and drives the left end of the pressing block (29) to the lowest end. Under the action of the lever mechanism, the right end of the pressing block (29) rises to the highest end. After the two workpiece scrapers (4) are installed and positioned, the rodless chamber of the telescopic cylinder (25) is filled with liquid, the piston rod extends and drives the left end of the pressing block (29) to rise. Under the action of the lever mechanism, the right end of the pressing block (29) descends until the two workpiece scrapers (4) are pressed together. The piston rod of the telescopic cylinder (25) is filled with liquid and retracts, and the left end of the pressing block (29) descends and the right end rises until the side pressing mechanism (9) is in the normal working state, and the scraper (4) can be loaded and unloaded.
7. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: The transverse positioning mechanism (11) and the longitudinal positioning mechanism (12) are respectively composed of a transverse flange (40), a transverse positioning pin (41), a longitudinal flange (18), a longitudinal positioning pin (20), a spring (19), a sealing ring (21), and a limiting pin (22). The spring (19), the transverse positioning pin (41), and the longitudinal positioning pin (20) are respectively installed in the holes of the transverse flange (40) and the longitudinal flange (18). The sealing ring (21) is installed in the groove at the upper end of the transverse flange (40) and the longitudinal flange (18). The limiting pin (22) is installed in the screw hole on the side of the transverse flange (40) and the longitudinal flange (18), and its top end is inserted into the groove of the transverse positioning pin (41) and the longitudinal positioning pin (20) to restrict the circumferential rotation of the transverse positioning pin (41) and the longitudinal positioning pin (20). Under the action of the spring (19), the transverse positioning pin (41) and the longitudinal positioning pin (20) can float up and down to accurately position the scraper (4).
8. The hydraulic clamp for scraper drilling in an underground scraper conveyor according to claim 1, characterized in that: Its working principle is as follows: adjust the X-direction position of the left clamping body (1), the middle clamping body (2) and the right clamping body (3) according to the specific size of the scraper (4), fix them on the CNC machine tool workbench, and adjust and tighten the positions of the side clamping mechanism (9), the support screw (34), the limit bracket (8) and the screw (39). Install the two scrapers (4) on the hydraulic clamp for drilling holes of the scraper conveyor in the well. The support screw (34) positions and limits the scraper (4) in the up and down direction. The lateral positioning mechanism (11) and the longitudinal positioning mechanism (12) accurately position the scraper (4) in the lateral and longitudinal directions under the action of the floating function. The longitudinal limit bracket (10) and the limit bracket (8) limit the scraper (4) in the longitudinal and lateral directions. The corner cylinder (35) fills the rod cavity. The hydraulic starter rotary clamping mechanism (16) drives the pressure plate (37) and pressure head (38) to descend and rotate until they rotate 90 degrees and clamp the two scrapers (4). Then, the rodless chamber of the telescopic cylinder (25) is filled with liquid to start the side clamping mechanism (9) to clamp the two scrapers (4) and complete the clamping of the scraper (4) workpiece. The machine tool is started to complete the drilling and countersinking of the scraper (4) workpiece. First, the side clamping mechanism (9) is started, and the rod chamber of the telescopic cylinder (25) is filled with liquid to make it in normal working condition. Then, the rotary clamping mechanism (16) is started, and the rodless chamber of the corner cylinder (35) is filled with liquid to make it in normal working condition. The scraper (4) workpiece is disassembled. The above steps of clamping, drilling and countersinking, and disassembling of the scraper (4) are repeated to continuously perform the drilling and countersinking of the scraper (4) workpiece.