Auxiliary positioning tool convenient for tapping dumbbell pin clamping block

Abstract

The utility model provides an auxiliary positioning tool convenient for tapping dumbbell pin fixture blocks, which comprises a positioning seat, and a transverse positioning stop block, a lateral positioning stop block, a pressing component and a positioning plate which are arranged at the upper end of the positioning seat, and the pressing component is arranged on one side of the lateral positioning stop block in an opposite manner; a clamping channel for clamping the dumbbell pin clamping block is formed between the lateral positioning stop block and the transverse positioning stop block, the transverse positioning stop block is adjacent to the lateral positioning stop block and right faces one end of the clamping channel so that the dumbbell pin clamping block placed in the clamping channel can be transversely stopped and limited, and the dumbbell pin clamping block can be clamped by the lateral positioning stop block through the telescopic movement of the pressing assembly in the direction of the lateral positioning stop block. The dumbbell pin clamping block placed in the clamping channel can be clamped and fixed; and the positioning plate is rotatably arranged at the upper end of the lateral positioning stop block and can assist a trepanning drill bit of a drilling machine in trepanning and positioning the dumbbell pin clamping block which is clamped and fixed, the dumbbell pin clamping block can be rapidly clamped and fixed, the stability is good, operation is convenient, positioning and alignment are convenient, and the trepanning efficiency of the dumbbell pin clamping block is improved.

Description

Technical Field

[0001] This utility model relates to the field of dumbbell pin block hole-making technology, specifically to an auxiliary positioning fixture that facilitates hole-making for dumbbell pin blocks. Background Technology

[0002] Dumbbell pins are crucial components connecting the intermediate troughs of a scraper conveyor. Their function is to ensure a stable connection between the intermediate troughs, preventing lateral and longitudinal displacement and guaranteeing the smooth operation of the conveyor for coal transport. The clamping blocks (dumbbell pin clamps) are components that fit over both ends of the dumbbell pins, preventing them from detaching from the intermediate troughs. Due to the complex underground working conditions, the intermediate troughs experience lateral or longitudinal displacement impacts during push-pull operation, causing significant stress on the dumbbell pins and clamping blocks. To improve the clamping blocks' resistance to bending damage, existing clamping blocks are forged. After forging, the clamping blocks require secondary drilling.

[0003] The common method for drilling holes in clamping blocks is to use a vise to hold and fix the clamping blocks on a drilling machine. However, due to the large number of clamping blocks, it is inconvenient to use a vise to position and align the blocks, resulting in low drilling efficiency. To address this technical problem, the prior art, authorized by CN220806352U, discloses a clamp for an anti-detachment part at the end of a mining dumbbell pin. This clamp uses a space in a fixed component to hold the anti-detachment part, and a pressing component is placed on one side of the fixed component. The moving block of the pressing component presses the anti-detachment part placed in the fixed component, using the lever principle to clamp the workpiece, so that the anti-detachment part is tightly attached to the first inner wall and the fourth inner wall of the fixed component, thus fixing the anti-detachment part in the fixed component for drilling.

[0004] However, in actual use, the clamp has several drawbacks. The anti-detachment component (dumbbell pin block) needs to be stopped and limited by the first positioning block of the fixing component, and the movable block of the extrusion component needs to be pressed against the outer corner of one end of the anti-detachment component to apply lateral force to the anti-detachment component towards the first positioning block to form mutual clamping. This clamping method has a small clamping contact surface, and the clamped anti-detachment component has poor stability. Under the cutting force of drilling, the anti-detachment component is prone to vibration. Moreover, during the drilling process, the rotating arm of the extrusion component must always be kept in a manual pressing state, which is not convenient to operate. Utility Model Content

[0005] In view of this, it is necessary to provide an auxiliary positioning fixture that facilitates drilling holes in dumbbell pin blocks, so as to solve the technical problems of inconvenience in drilling holes in dumbbell pin blocks and poor clamping stability in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An auxiliary positioning fixture for facilitating the drilling of dumbbell pin blocks includes a positioning seat fixed parallel to the worktable of a drilling machine, and a transverse positioning block, a lateral positioning block, a clamping assembly, and a positioning plate disposed on the upper end of the positioning seat. The clamping assembly is disposed opposite to one side of the lateral positioning block, forming a clamping channel for clamping the dumbbell pin block. The transverse positioning block is disposed adjacent to the lateral positioning block and faces one end of the clamping channel to laterally stop and limit the dumbbell pin block placed in the clamping channel. The clamping assembly can... The device can extend and retract towards the lateral positioning block, pressing the dumbbell pin block placed in the clamping channel against the lateral positioning block to form a clamping action, thereby securing the dumbbell pin block. The positioning plate is rotatably mounted on the upper end of the lateral positioning block, and a positioning hole is provided at one end of the positioning plate. The end of the positioning plate with the positioning hole can be turned to the outside of the lateral positioning block or directly above the clamping channel. When it is turned directly above the clamping channel, it can assist the drilling bit of the drilling machine in drilling and positioning the clamped dumbbell pin block.

[0008] Preferably, the clamping assembly includes a fixed seat, a slider, and a bolt. The fixed seat is fixed to the upper end of the positioning seat and is positioned opposite to one side of the lateral positioning block. The fixed seat and the lateral positioning block are spaced apart to form the clamping channel for the dumbbell pin block. A groove is provided parallel to the fixed seat and extends through it towards the lateral positioning block. The slider is engaged in the groove and can slide freely along the groove. A locking block is fixed at the end of the groove away from the lateral positioning block. One end of the bolt is threadedly connected to the slider, and the other end passes through the locking block and is rotatably engaged on the locking block. By rotating the bolt, the slider can be driven to extend out of the groove towards the lateral positioning block, so as to squeeze the dumbbell pin block placed in the clamping channel toward the lateral positioning block and form a clamping relationship with the lateral positioning block.

[0009] Preferably, there are two sets of clamping components, which are respectively arranged opposite each other on both sides of the lateral positioning block. The two sets of clamping components and the lateral positioning block respectively form clamping channels for clamping dumbbell pin blocks. There are two lateral positioning blocks, which are respectively fixedly arranged opposite one end of the two clamping channels. The positioning plate is arranged parallel to the upper end of the lateral positioning block. The two ends of the positioning plate are respectively arranged parallel to the direction of the two clamping channels. The upper end surfaces of the two ends of the positioning plate are respectively vertically opened with positioning holes for the drilling bit of the drilling machine to pass through. The two positioning holes are respectively directly above the dumbbell pin blocks fixed in the two clamping channels, which respectively assist in positioning the drilling bit of the drilling machine so that the drilling bit of the drilling machine can drill holes in the dumbbell pin blocks fixed in the two clamping channels.

[0010] Preferably, a fixed shaft is longitudinally arranged at the upper center of the lateral positioning block, and a bushing matching the fixed shaft is arranged in the middle of the positioning plate. The positioning plate is rotatably sleeved on the fixed shaft, and a stop post is arranged on one side of the fixed shaft. The stop post stops and limits the positioning plate, so that the positioning plate stops rotating when the two ends with positioning holes are directly above the two clamping channels or away from the two clamping channels.

[0011] Preferably, a detachable positioning sleeve is coaxially fitted in the positioning hole.

[0012] As can be seen from the above technical solution, the auxiliary positioning fixture for facilitating the drilling of dumbbell pin blocks provided in this application includes a positioning base and a transverse positioning block, a lateral positioning block, a clamping assembly, and a positioning plate disposed on the upper end of the positioning base. The clamping assembly is disposed opposite to one side of the lateral positioning block, forming a clamping channel for clamping the dumbbell pin block. The transverse positioning block is disposed adjacent to the lateral positioning block and is directly opposite one end of the clamping channel to laterally stop and limit the dumbbell pin block placed in the clamping channel. The clamping assembly extends and retracts towards the lateral positioning block. The device can clamp and fix the dumbbell pin block placed in the clamping channel. Its advantages are: the lateral positioning block provides lateral stop and limit for the dumbbell pin block, and the clamping component and the lateral positioning block form a clamping mechanism, which can quickly clamp and fix the dumbbell pin block with good stability and convenient operation. It is convenient to position and align the dumbbell pin block. Furthermore, by rotatably setting the positioning plate on the upper end of the lateral positioning block, it can assist the drilling bit of the drilling machine in drilling and positioning the clamped dumbbell pin block, thus improving the drilling efficiency of the dumbbell pin block. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the dumbbell fixing pin block of this utility model.

[0014] Figure 2 This is a schematic diagram of the positioning plate of this utility model in its flipped-open state.

[0015] Figure 3 This is a three-dimensional structural diagram of the clamping assembly.

[0016] Figure 4 This is an exploded view of the clamping assembly.

[0017] Figure 5 This is a three-dimensional structural diagram of the fixing dumbbell pin block in another preferred embodiment.

[0018] Figure 6 This is a top view of the fixed dumbbell pin block in another preferred embodiment.

[0019] Figure 7This is a schematic diagram of the state of the positioning plate after rotation in another preferred embodiment.

[0020] Figure 8 This is a schematic diagram of the positioning plate and positioning sleeve in another preferred embodiment.

[0021] Figure 9 This is a schematic diagram of the dumbbell pin retainer block after the hole has been drilled.

[0022] In the figure: positioning seat 10, transverse positioning block 20, lateral positioning block 30, pin 31, fixed shaft 32, stop post 33, clamping assembly 40, fixed seat 41, slider 42, bolt 43, slide groove 44, locking block 45, locking groove 46, annular groove 47, positioning plate 50, positioning hole 51, positioning sleeve 52, bushing 53. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Please refer to Figure 1 , Figure 2 and Figure 9 This utility model provides an auxiliary positioning fixture for facilitating the drilling of dumbbell pin blocks. It includes a positioning seat 10 fixed parallel to the worktable of a drilling machine, and a transverse positioning block 20, a lateral positioning block 30, a clamping assembly 40, and a positioning plate 50 disposed on the upper end of the positioning seat 10. The clamping assembly 40 is positioned opposite one side of the lateral positioning block 30, forming a clamping channel for holding the dumbbell pin block. The transverse positioning block 20 is adjacent to the lateral positioning block 30 and faces one end of the clamping channel, thus providing a transverse stop and limiting for the dumbbell pin block placed in the clamping channel. The clamping assembly 40 can extend and retract towards the lateral positioning block 30 to hold the dumbbell pin block placed in the clamping channel. The dumbbell pin holder in the holding channel is pressed against the lateral positioning block 30, forming a clamp with the lateral positioning block 30 to clamp and fix the dumbbell pin holder. The positioning plate 50 is rotatably disposed on the upper end of the lateral positioning block 30. A positioning hole 51 is provided at one end of the positioning plate 50. The end of the positioning plate 50 with the positioning hole 51 can be turned to the outside of the lateral positioning block 30 or directly above the holding channel. When it is turned directly above the holding channel, the positioning hole 51 is directly above the preset opening position at the center of the dumbbell pin holder fixed in the holding channel. The positioning hole 51 plays a guiding and positioning role for the drilling bit of the drilling machine, so that the drilling bit of the drilling machine can open and position the fixed dumbbell pin holder.

[0025] Please refer to Figure 1 , Figure 3 and Figure 4Specifically, the clamping assembly 40 includes a fixed base 41, a slider 42, and a bolt 43. The fixed base 41 is fixed to the upper end of the positioning base 10 and is positioned opposite to one side of the lateral positioning block 30. The fixed base 41 and the lateral positioning block 30 are spaced apart to form the clamping channel for the dumbbell pin block. A groove 44 is provided parallel to the fixed base 41 in the direction of the lateral positioning block 30. The slider 42 is engaged in the groove 44 and can slide freely along the groove 44. The slider 42 is directly opposite the lateral positioning block 30. The height of the slider 42 matches the height of the clamped dumbbell pin block and is aligned with the center line of the positioning hole 51. A bolt 43 is fixedly provided at the end of the groove 44 away from the lateral positioning block 30. The locking block 45 has a locking groove 46. One end of the bolt 43 is threadedly connected to the slider 42, and the other end has an annular groove 47 that matches the locking groove 46. The annular groove 47 of the bolt 43 is locked in the locking groove 46 of the locking block 45 and can rotate freely. The locking block 45 is used to limit the bolt 43. By rotating the bolt 43, the slider 42 is driven to extend and retract along the sliding groove 44. The positioning plate 50 is a horizontally arranged plate. The end of the positioning plate 50 away from the positioning hole 51 is pinned to the upper end of the lateral positioning block 30 by a horizontal pin 31. The end of the positioning plate 50 with the positioning hole 51 is flipped outward of the lateral positioning block 30, so that it is away from the clamping passage. The clamping channel can be opened at the top. The end of the positioning plate 50 with the positioning hole 51 can be flipped towards the clamping channel, so that the positioning hole 51 is directly above the dumbbell pin block fixed in the clamping channel and directly aligned with the preset opening position in the center of the dumbbell pin block. In use, the slider 42 is retracted to the starting position, opening the clamping channel. The dumbbell pin block is inserted horizontally into the clamping channel with its top facing upwards, and one end of the dumbbell pin block abuts against the horizontal positioning block 20. Using a wrench, the bolt 43 is turned, driving the slider 42 to extend out of the groove 44 towards the lateral positioning block 30. The slider 42 presses the dumbbell pin block placed in the clamping channel against the lateral positioning block 30. The slider 42 and the lateral positioning block 30 mutually support the dumbbell pin block. The dumbbell pin is clamped and fixed, and the positioning plate 50 is flipped to be directly above the clamped dumbbell pin block, so that the positioning hole 51 on the positioning plate 50 is aligned with the preset opening position at the center of the top of the dumbbell pin block. The positioning hole 51 matches the diameter of the drilling bit of the drilling machine, which is used to assist the drilling bit of the drilling machine in positioning. During drilling, the drilling bit of the drilling machine can be guided through the positioning hole 51 to drill at the top of the dumbbell pin block, ensuring the drilling accuracy. After drilling is completed, the end of the positioning plate 50 with the positioning hole 51 can be manually flipped to the outside of the side positioning block 30, so that it is away from the clamping channel. The top of the clamping channel can be opened to facilitate placing the dumbbell pin block in the clamping channel from above the side positioning block 30 or removing it from the clamping channel.

[0026] The positioning hole 51 on the positioning plate 50 serves as a guide and positioning tool. The drilling bit on the drilling machine is guided through the positioning hole 51 to drill at the top of the dumbbell pin block. This eliminates the need to mark the dumbbell pin block for positioning, thus improving drilling efficiency.

[0027] Please refer to Figure 5 and Figure 6 Furthermore, in a preferred embodiment, the clamping components 40 are in two sets, respectively arranged opposite each other on both sides of the lateral positioning block 30. The two sets of clamping components 40 and the lateral positioning block 30 respectively form clamping channels for clamping dumbbell pin blocks. There are two transverse positioning blocks 20, respectively fixedly arranged opposite one end of the two clamping channels. The positioning plate 50 is arranged parallel to the upper end of the lateral positioning block 30. The two ends of the positioning plate 50 extend parallel to the two clamping channels. Positioning holes 51 for drilling tools to pass through are vertically opened on the upper surface of the two ends of the positioning plate 50. The two positioning holes 51 are respectively directly above the dumbbell pin blocks fixed in the two clamping channels, respectively assisting in positioning the drilling tools of the drilling machine. In this way, when drilling, the two dumbbell pin blocks can be clamped and fixed so that the drilling tools of the drilling machine can drill holes in the dumbbell pin blocks fixed in the two clamping channels, thereby improving work efficiency.

[0028] Please refer to Figures 6 to 8 Furthermore, a fixed shaft 32 is longitudinally arranged at the upper center of the lateral positioning block 30, and a bushing 53 matching the fixed shaft 32 is arranged in the middle of the positioning plate 50. The positioning plate 50 is rotatably sleeved on the fixed shaft 32. A stop post 33 is arranged on one side of the fixed shaft 32. The stop post 33 stops and limits the positioning plate 50, so that the two ends of the positioning plate 50 with positioning holes 51 are rotated parallel to each other and stop rotating when they are directly above or away from the two clamping channels. When placing or removing the dumbbell pin block into the clamping channel, the positioning plate 50 can be manually rotated parallel to each other so that the two ends of the positioning plate 50 with positioning holes 51 are away from the clamping channel, so as to open the top of the clamping channel, so as to facilitate placing or removing the dumbbell pin block into or from the clamping channel.

[0029] Please continue reading. Figure 8 Furthermore, in order to prevent the positioning hole 51 from being worn after long-term use and thus reducing the positioning accuracy, a detachable positioning sleeve 52 is coaxially sleeved in the positioning hole 51. The inner diameter of the positioning sleeve 52 matches the drill bit. The positioning sleeve 52 can be replaced after it is worn to ensure the drilling accuracy.

[0030] This auxiliary positioning fixture uses a lateral positioning block 20 to laterally stop and limit the dumbbell pin block, and the clamping component 40 and the lateral positioning block 30 form a clamping relationship, which can quickly clamp and fix the dumbbell pin block. It has good stability, is easy to operate, and facilitates the positioning and alignment of the dumbbell pin block. Furthermore, by rotatably setting the positioning plate 50 on the upper end of the lateral positioning block 30, the positioning hole 51 on the positioning plate 50 can assist the drilling bit of the drilling machine in drilling and positioning the clamped dumbbell pin block, eliminating the need for marking and positioning the dumbbell pin block, thus improving the drilling efficiency of the dumbbell pin block.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. An auxiliary positioning fixture for facilitating the drilling of holes in dumbbell pin blocks, characterized in that: The system includes a positioning seat fixed parallel to the drilling machine's worktable, and a transverse positioning block, a lateral positioning block, a clamping assembly, and a positioning plate disposed on the upper end of the positioning seat. The clamping assembly is disposed opposite to one side of the lateral positioning block, forming a clamping channel for holding a dumbbell pin block. The transverse positioning block is disposed adjacent to the lateral positioning block and faces one end of the clamping channel to laterally stop and limit the dumbbell pin block placed in the clamping channel. The clamping assembly is responsive to the lateral positioning block. The telescopic movement presses the dumbbell pin block placed in the clamping channel against the lateral positioning block, forming a clamp with the lateral positioning block to hold and fix the dumbbell pin block. The positioning plate is rotatably mounted on the upper end of the lateral positioning block, and a positioning hole is opened at one end of the positioning plate. The end of the positioning plate with the positioning hole can be turned to the outside of the lateral positioning block or directly above the clamping channel. When it is turned directly above the clamping channel, it can assist the drilling bit of the drilling machine in drilling and positioning the dumbbell pin block that is clamped and fixed.

2. The auxiliary positioning fixture for facilitating the drilling of the dumbbell pin block as described in claim 1, characterized in that: The clamping assembly includes a fixed base, a slider, and a bolt. The fixed base is fixed to the upper end of the positioning base and is positioned opposite to one side of the lateral positioning block. The fixed base and the lateral positioning block are spaced apart to form the clamping channel for the dumbbell pin block. A groove is provided parallel to the fixed base and extends through it towards the lateral positioning block. The slider is engaged in the groove and can slide freely along the groove. A locking block is fixed at the end of the groove away from the lateral positioning block. One end of the bolt is threaded to the slider, and the other end passes through the locking block and is rotatably engaged on the locking block. By rotating the bolt, the slider can be driven to extend out of the groove towards the lateral positioning block, so as to squeeze the dumbbell pin block placed in the clamping channel toward the lateral positioning block and form a clamping relationship with the lateral positioning block.

3. The auxiliary positioning fixture for facilitating the drilling of the dumbbell pin block as described in claim 2, characterized in that: The clamping components consist of two sets, respectively positioned opposite each other on both sides of the lateral positioning block. The two sets of clamping components and the lateral positioning block form clamping channels for holding the dumbbell pin blocks. There are two lateral positioning blocks, each fixedly positioned opposite one end of a clamping channel. A positioning plate is parallel to the upper end of the lateral positioning block, with both ends extending parallel towards the two clamping channels. Positioning holes for the drilling machine's drill bit to pass through are vertically opened on the upper surface of both ends of the positioning plate. These two positioning holes are directly above the dumbbell pin blocks fixed in the two clamping channels, assisting in positioning the drilling machine's drill bit so that it can drill holes in the dumbbell pin blocks fixed in the two clamping channels.

4. The auxiliary positioning fixture for facilitating the drilling of the dumbbell pin block as described in claim 3, characterized in that: The upper center of the lateral positioning block is provided with a fixed shaft, and the middle part of the positioning plate is provided with a bushing that matches the fixed shaft. The positioning plate is rotatably mounted on the fixed shaft. A stop post is provided on one side of the fixed shaft. The stop post stops and limits the positioning plate, so that the two ends of the positioning plate with positioning holes rotate parallel to each other and stop rotating when they are directly above the two clamping channels or away from the two clamping channels.

5. The auxiliary positioning fixture for facilitating the drilling of the dumbbell pin block as described in claim 1 or 4, characterized in that: A detachable positioning sleeve is coaxially fitted in the positioning hole.

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