Positioning tool

Abstract

The utility model relates to a locating frock relates to frock clamp technical field, the locating frock includes base, locating table and locating piece, locating table is fixed on the base, and locating table is detachably connected with locating plate, the locating plate is provided with abdicating hole for the drill bit to pass through, and one side bottom wall can abut against the end portion of work piece, locating piece is located on the locating piece, locating piece is located on the locating piece, locating piece is located on the locating piece. The positioning block is arranged on the base and can slide towards the positioning table, and a buffering piece which can abut against the handle part of the workpiece is arranged on one side of the positioning table. Through the combination of the positioning plate, the buffer piece and the positioning block, the workpiece is wrapped to be positioned, the good limiting effect is achieved, and the effect of preventing the workpiece from deviating in the drilling process is achieved.

Description

Technical Field

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

[0002] After a traditional workpiece is demolded from a mold, it is necessary to drill holes at corresponding locations in order to facilitate assembly with other workpieces. When drilling, a drilling tool is required. The drilling tool mainly includes a positioning table. The bottom side of the positioning table has a storage space for accommodating the workpiece, and the top side of the positioning table is provided with a clearance hole for inserting the drill. The drill bit passes through the clearance hole and continuously feeds to complete the drilling of the workpiece.

[0003] However, for a workpiece in the shape of a round rod with a handle extending laterally from the end, the workpiece will rotate during drilling, which may cause the position of the workpiece to shift, resulting in low drilling accuracy and a need to improve the yield rate of the workpiece. Utility Model Content

[0004] The utility model aims to provide a positioning tool for better positioning a workpiece.

[0005] The utility model provides a positioning tool adopting the following technical solution:

[0006] A positioning tool comprises a base, a positioning platform and a positioning block, wherein the positioning platform is fixed on the base and a positioning plate is detachably connected to the positioning platform, a clearance hole for a drill bit to pass through is provided on the positioning plate and a bottom wall on one side can abut against an end of a workpiece, the positioning block is placed on the base and can slide toward the positioning platform, and a buffer member capable of abutting against a handle portion of the workpiece is provided on one side of the positioning platform.

[0007] By adopting the above technical solution, the positioning plate is pressed against the end of the workpiece, while the buffer and the positioning block are respectively located on both sides of the workpiece to press against the side wall of the workpiece. Through the combination of the positioning plate, the buffer and the positioning block, the workpiece is covered to position the workpiece, forming a better limiting effect and preventing the workpiece from shifting during drilling.

[0008] Optionally, a positioning column for inserting a workpiece is connected to the base, and the positioning column is coaxially arranged with the clearance hole.

[0009] By adopting the above technical solution, the workpiece is prevented from constant vertical movement in the three spatial axis directions by plugging the workpiece into the positioning column, thereby forming a preliminary fixation of the workpiece, which is beneficial to improving the accuracy of subsequent positioning of the workpiece by the positioning plate, buffer and buffer block.

[0010] Optionally, a limiting protrusion is protruding from the middle part of the positioning block on one side close to the positioning platform, and a limiting groove matching the workpiece is formed at the end of the limiting protrusion.

[0011] By adopting the above technical solution, when the limiting protrusion approaches the workpiece, the wall surface of the limiting groove abuts against the peripheral side wall of the rod-shaped part of the workpiece, and the peripheral area of ​​the limiting groove provided on the limiting protrusion further fits against the wall surface of the handle part of the workpiece, forming a better positioning effect.

[0012] Optionally, it further comprises a fastener for locating the position of the positioning block, the fastener comprises a fastening plate and a fastening screw, the fastening plate is fixed to the positioning plate and fits with the side wall of the positioning block;

[0013] The fastening plate is provided with a movable groove along its length direction, and the positioning block is provided with a fastening groove. The fastening screw can pass through the movable groove and be threadedly matched with the fastening groove.

[0014] By adopting the above technical solution, the movement of the positioning block is further constrained by setting a fastening plate, thereby preventing the positioning block from offsetting during movement, which may lead to insufficient fit between the limiting protrusion and the workpiece. The fastening screw can also position the positioning block. When the positioning block moves to the correct position, the fastening screw is tightened so that the positioning block is fixed by the fastening plate, making the positioning effect of the workpiece more stable and reliable.

[0015] Optionally, a fixing block for installing the positioning block is further included, a sliding groove is provided on the base, a sliding block matching the sliding groove is protruded from the bottom side of the fixing block, and the positioning block is detachably connected to the side wall of the fixing block.

[0016] By adopting the above technical solution, the positioning block is driven to move by the fixed block. When processing workpieces of different lengths, different types of positioning blocks can be replaced. The setting of the slide groove and the slider constrains the moving path of the fixed block, which prevents the positioning block from shifting during the movement and not fitting tightly with the workpiece.

[0017] Optionally, a driving cylinder is provided on a side of the fixed block facing away from the positioning platform, and the driving cylinder is installed on the base and can push the fixed block to move.

[0018] By adopting the above technical solution, the driving cylinder is used to provide power for the movement of the fixed block, which is simple and reliable.

[0019] Optionally, the height of the positioning plate is adjustable, a threaded rod is vertically arranged between the positioning plate and the positioning block, one end of the threaded rod is surrounded by a convex edge and is placed in the positioning platform, and the other end of the threaded rod is inserted into the positioning plate.

[0020] By adopting the above technical solution, when installing the workpiece, the threaded rod is rotated and the positioning plate is moved in the direction away from the positioning platform. When the distance between the bottom wall of the positioning plate and the bottom wall of the positioning platform is greater than the height of the workpiece, the workpiece is placed on the positioning column to complete the initial fixation. Then, the threaded rod is rotated in the opposite direction and the positioning plate is moved in the direction close to the positioning platform. When the bottom wall of the positioning plate abuts against the end of the workpiece, the threaded rod is stopped to complete the preliminary fixation of the workpiece.

[0021] Optionally, it also includes a transmission member for driving the threaded rod to rotate, the transmission member includes a driving motor and a transversely arranged transmission rod, the driving motor is installed on the positioning platform, one end of the transmission rod is inserted into the positioning platform and is connected to the threaded rod gear transmission, and the other end of the transmission rod is connected to the output end of the driving motor.

[0022] By adopting the above technical solution, a transmission member is provided to provide power for the lifting and lowering of the positioning plate.

[0023] Optionally, a plurality of limiting rods arranged around the threaded rod are provided between the positioning plate and the positioning block, one end of the limiting rod is fixed to the bottom wall of the positioning plate, and the other end of the limiting rod is inserted into the positioning platform.

[0024] By adopting the above technical solution, the limit rod can provide a guiding effect on the positioning movement, prevent the limit rod from rotating synchronously with the threaded rod, and ensure that the positioning plate can be lifted and lowered stably.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects:

[0026] 1. In the utility model, the end of the workpiece is pressed against by the positioning plate, and the buffer and the positioning block are respectively located on both sides of the workpiece to press against the side wall of the workpiece. The workpiece is positioned by covering it through the combination of the positioning plate, the buffer and the positioning block, forming a better limiting effect and preventing the workpiece from deviating during drilling.

[0027] 2. In the utility model, the movement of the positioning block is further constrained by setting a fastening plate, so as to prevent the positioning block from being offset during movement, resulting in insufficient fit between the limit protrusion and the workpiece, and the fastening screw can also position the positioning block. When the positioning block moves to the correct position, the fastening screw is tightened so that the positioning block is fixed by the fastening plate, making the positioning effect of the workpiece more stable and reliable.

[0028] 3. The height of the positioning plate in the utility model is adjustable. When installing the workpiece, the threaded rod is rotated, and under the guidance of the limit rod, the positioning plate moves in the direction away from the positioning platform. When the distance between the bottom wall of the positioning plate and the bottom wall of the positioning platform is greater than the height of the workpiece, the workpiece is placed on the positioning column to complete the initial fixation. Then, the threaded rod is rotated in the opposite direction, and the positioning plate moves in the direction close to the positioning platform. When the bottom wall of the positioning plate abuts against the end of the workpiece, the threaded rod is stopped to complete the preliminary fixation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the positioning tool in Example 1 of the utility model;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of the workpiece in the utility model;

[0031] Figure 3 It is a schematic cross-sectional structural diagram of the positioning tool in Embodiment 1 of the present utility model;

[0032] Figure 4 It is a three-dimensional structural schematic diagram of the positioning plate and the limiting rod in Example 1 of the utility model;

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the positioning tool in Example 2 of the utility model.

[0034] In the figure, 1, base; 11, slide groove; 2, positioning platform; 21, constraint hole; 3, positioning block; 31, limiting protrusion; 32, limiting groove; 33, fastening groove; 4, positioning plate; 41, clearance hole; 42, positioning hole; 5, buffer; 51, connecting column; 52, connecting block; 6, fastener; 61, fastening plate; 611, movable groove; 62, fastening screw; 7, fixing block; 8, transmission member; 81, driving motor; 82, driving rod; 9, slider; 10, driving cylinder; 20, threaded rod; 30, convex edge; 40, limiting rod; 50, positioning column; 60, workpiece; 601, round rod part; 602, handle part. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 5 , the utility model is described in further detail.

[0036] Embodiment 1:

[0037] A positioning tool, referring to Figure 1, including a base 1, a positioning platform 2 and a positioning block 3. The positioning platform 2 is fixed on the base 1 and a positioning plate 4 is detachably connected to the positioning platform 2. A clearance hole 41 for a drill bit to pass through is opened on the positioning plate 4 and a bottom wall on one side can abut against the end of a workpiece 60. The positioning block 3 is placed on the base 1 and can slide toward the positioning platform 2. A buffer member 5 that can abut against a handle portion 602 of the workpiece 60 is provided on one side of the positioning platform 2.

[0038] Reference Figure 1 and Figure 2 In this embodiment, the main body of the workpiece 60 includes a round rod portion 601 and a handle portion 602 extending laterally at one end of the round rod portion 601. The other end of the round rod portion 601 is sleeve-shaped, that is, the other end of the round rod portion 601 is hollow. Correspondingly, a positioning column 50 for inserting the workpiece 60 is fixedly connected to the base 1. In this embodiment, the positioning column 50 is fixed to the base 1 by welding. In other embodiments, the positioning column 50 can also be detachably connected to the base 1 by screws. The cross-section of the positioning column 50 is circular and is coaxially arranged with the clearance hole 41.

[0039] When drilling a hole in the workpiece 60, one end of the workpiece 60 in a sleeve shape is sleeved on the outer end of the positioning column 50 to preliminarily fix the workpiece 60, and then the positioning block 3 is pushed to make the positioning block 3 approach the workpiece 60 and finally abut against the workpiece 60. The positioning block 3 and the buffer member 5 are located on both sides of the workpiece 60, respectively pressing against the workpiece 60 to form a better restraining effect on the workpiece 60.

[0040] Reference Figure 1 and Figure 3 In order to facilitate the insertion of the workpiece 60 and the positioning column 50, in the present embodiment, the height of the positioning plate 4 is adjustable. Specifically, a threaded rod 20 is vertically arranged between the positioning plate 4 and the positioning block 3, one end of the threaded rod 20 is surrounded by a convex edge 30 and is placed in the positioning platform 2, and the other end of the threaded rod 20 is inserted into the positioning plate 4.

[0041] Correspondingly, a constraint hole 21 matching the threaded rod 20 is opened in the positioning block 3. The constraint hole 21 is stepped to constrain the convex edge 30 on the threaded rod 20 and prevent the threaded rod 20 from moving vertically. When the height of the limit rod 40 needs to be adjusted, the threaded rod 20 can be rotated.

[0042] Furthermore, combined with Figure 4A plurality of limit rods 40 are arranged between the positioning plate 4 and the positioning block 3 and are arranged around the threaded rod 20. In the present embodiment, two limit rods 40 are arranged, and one end of the two limit rods 40 is fixed to the bottom wall of the positioning plate 4 by screws, and the other ends of the two limit rods 40 are inserted into the positioning platform 2. The movement of the positioning plate 4 is guided by the setting of the limit rods 40, and the positioning plate 4 is prevented from rotating synchronously with the threaded rod 20, so as to stably slide along the threaded rod 20 in the vertical direction.

[0043] When installing the workpiece 60, the threaded rod 20 is rotated, and under the constraint of the limit rod 40, the positioning plate 4 moves in the direction away from the positioning platform 2. When the distance between the bottom wall of the positioning plate 4 and the bottom wall of the positioning platform 2 is greater than the height of the workpiece 60, the workpiece 60 is sleeved on the positioning column 50 to complete the initial fixation. Then, the threaded rod 20 is rotated in the opposite direction, and the positioning plate 4 moves in the direction close to the positioning platform 2. When the bottom wall of the positioning plate 4 abuts against the end of the workpiece 60, the threaded rod 20 is stopped to complete the preliminary fixation of the workpiece 60.

[0044] Reference Figure 1 and Figure 3 , and also includes a transmission member 8 for driving the threaded rod 20 to rotate. The transmission member 8 includes a driving motor 81 and a transversely arranged transmission rod 82. The driving motor 81 is fixed to the side wall of the positioning platform 2 by screws. One end of the transmission rod 82 is inserted into the positioning platform 2 and is connected to the threaded rod 20 through a bevel gear set. The other end of the transmission rod 82 is connected to the output end of the driving motor 81. The driving motor 81 can rotate forward and reverse, and the driving motor 81 provides power for the rotation of the threaded rod 20.

[0045] It should be noted that, in this embodiment, the drive motor 81 has a self-locking function, that is, when the drive motor 81 stops running, the drive motor 81 can automatically lock and maintain the current state to prevent the positioning plate 4 from being pushed by external force and interfere with subsequent drilling work.

[0046] In addition, in order to further fix the workpiece 60, a positioning hole 42 is opened on the bottom side of the positioning plate 4 for matching the workpiece 60. The side wall surface of the positioning hole 42 can abut against the end of the rod-shaped part of the workpiece 60 and the side wall of the handle part 602. When the positioning plate 4 abuts against the workpiece 60, the workpiece 60 is constrained by the side wall of the positioning hole 42 and is difficult to rotate.

[0047] Reference Figure 1The buffer member 5 includes a connecting column 51 and a connecting block 52. The shape of the side wall of the connecting block 52 matches the handle portion 602 of the workpiece 60, that is, the side wall of the connecting block 52 fits with the wall surface of the handle portion 602 of the workpiece 60. In addition, a limiting protrusion 31 is protruded from the middle part of the positioning block 3 close to the positioning platform 2. A limiting groove 32 matching the workpiece 60 is provided at the end of the limiting protrusion 31. Specifically, the limiting groove 32 is arc-shaped. When the limiting protrusion 31 is close to the workpiece 60, the wall surface of the limiting groove 32 abuts against the peripheral side wall of the rod-shaped portion of the workpiece 60, and the peripheral area of ​​the limiting protrusion 31 where the limiting groove 32 is provided is further fitted with the wall surface of the handle portion 602 of the workpiece 60.

[0048] The workpiece 60 is positioned by combining the wall of the positioning hole 42, the side wall of the connecting block 52, the wall of the limiting groove 32 on the limiting protrusion 31, and the surrounding area of ​​the limiting groove 32 to form a better limiting effect and prevent the workpiece 60 from deviating in the drilling hole.

[0049] Reference Figure 1 and Figure 3 , and also includes a fixing block 7 for installing the positioning block 3. The fixing block 7 is arranged in an L-shape as a whole, and a plurality of bolt holes are opened on the fixing block 7. When installing the positioning block 3, the positioning block 3 is placed on the horizontally arranged part of the fixing block 7, so that the side wall of the positioning block 3 is fitted with the part of the side wall surface of the vertically arranged part of the fixing block 7, and then the bolts are screwed into the bolt holes to complete the installation of the positioning block 3. When processing workpieces 60 of different lengths, different types of positioning blocks 3 can be replaced.

[0050] In addition, in order to ensure that the limiting protrusion 31 on the positioning block 3 can better limit the workpiece 60 after the fixed block 7 moves toward the workpiece 60, in this embodiment, a slide groove 11 is opened on the base 1. The slide groove 11 is opened along the length direction of the base 1 and is arranged on the path of the fixed block 7 approaching the workpiece 60. A slider 9 matching the slide groove 11 is protruded from the bottom side of the fixed block 7. By constraining the moving path, the positioning block 3 and the workpiece 60 are prevented from being loosely matched.

[0051] In addition, a driving cylinder 10 is provided on the side of the fixed block 7 facing away from the positioning platform 2. The driving cylinder 10 is installed on the base 1 and the output end is fixedly connected to the wall of the fixed block 7. When the positioning block 3 needs to be moved, the driving cylinder 10 provides power for the movement of the positioning block 3. The output end of the driving cylinder 10 extends to move the fixed block 7 along the opening direction of the slide groove 11 until the limiting protrusion 31 on the positioning block 3 cooperates with the workpiece 60. At this time, the driving cylinder 10 stops moving. When the workpiece 60 is punched, the output end of the driving cylinder 10 retracts to disengage the limiting protrusion 31 from the workpiece 60.

[0052] The implementation principle of the utility model embodiment 1 is:

[0053] Before drilling the workpiece 60, first start the drive motor 81 to move the positioning plate 4 away from the positioning platform 2 to provide installation space for inserting the workpiece 60 on the positioning column 50, and then reverse the drive motor 81 until the wall of the positioning hole 42 at the bottom of the positioning plate 4 constrains the end face of the workpiece 60. At this time, start the drive cylinder 10 to make the positioning block 3 approach the workpiece 60. When the limiting protrusion 31 on the positioning block 3 cooperates with the workpiece 60, the drive cylinder 10 stops moving, and the workpiece 60 is positioned by combining the wall of the positioning hole 42, the side wall of the connecting block 52, the wall of the limiting groove 32 on the limiting protrusion 31, and the surrounding area of ​​the limiting groove 32, forming a better limiting effect and preventing the workpiece 60 from offsetting during drilling.

[0054] Embodiment 2:

[0055] Reference Figure 5 The difference between this embodiment 2 and embodiment 1 is that it also includes a fastener 6 for locating the position of the positioning block 3. In this embodiment, two groups of fasteners 6 are provided. The fasteners 6 include a fastening plate 61 and a fastening screw 62. The fastening plate 61 is arranged horizontally, one end of which is detachably connected to the positioning plate 4 by a screw, and the other end extends toward the positioning block 3. The inner side surface of the fastening plate 61 is in contact with the side wall of the positioning block 3. When the positioning block 3 moves, it will be constrained by the fastening plates 61 on both sides of itself to ensure that the positioning block 3 moves stably along the opening direction of the slide groove 11.

[0056] Furthermore, the fastening plate 61 is provided with a movable groove 611 along its length direction, and the positioning block 3 is provided with a fastening groove 33. The fastening screw 62 can pass through the movable groove 611 and cooperate with the fastening groove 33 thread. Before the positioning block 3 moves, the fastening screw 62 is loosened, so that the positioning block 3 can slide relative to the fastening plate 61 in the movable groove 611 during the movement. When the limiting protrusion 31 on the positioning block 3 is fully engaged with the workpiece 60, the fastening screw 62 is tightened. The fastening screw 62 can apply pressure to the fastening plate 61, so that the positioning block 3 is fixed by the fastening plate 61, thereby preventing the limiting protrusion 31 from being disengaged from the workpiece 60.

[0057] The implementation principle of Example 2 of the utility model is:

[0058] By setting a fastening plate 61, the movement of the positioning block 3 is further constrained to prevent the positioning block 3 from being offset during movement, which may lead to insufficient fit between the limit protrusion 31 and the workpiece 60. The fastening screw 62 can also position the positioning block 3. When the positioning block 3 moves to the correct position, the fastening screw 62 is tightened so that the positioning block 3 is fixed by the fastening plate 61, making the positioning effect of the workpiece 60 more stable and reliable.

[0059] The embodiments of this specific implementation are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning tool, characterized in that: The invention comprises a base (1), a positioning platform (2) and a positioning block (3); the positioning platform (2) is fixed on the base (1) and a positioning plate (4) is detachably connected to the positioning platform (2); a clearance hole (41) is provided on the positioning plate (4) for a drill to pass through and a bottom wall on one side can abut against an end of a workpiece (60); the positioning block (3) is placed on the base (1) and can slide toward the positioning platform (2); a buffer member (5) is provided on one side of the positioning platform (2) and can abut against a handle portion (602) of the workpiece (60).

2. A positioning tool according to claim 1, characterized in that: The base (1) is connected with a positioning column (50) for inserting a workpiece (60), and the positioning column (50) is coaxially arranged with the clearance hole (41).

3. A positioning tool according to claim 1, characterized in that: A limiting protrusion (31) is protruding from the middle portion of the positioning block (3) on one side close to the positioning platform (2), and a limiting groove (32) matching the workpiece (60) is formed at the end of the limiting protrusion (31).

4. A positioning tool according to claim 3, characterized in that: It also includes a fastener (6) for locating the position of the positioning block (3), the fastener (6) including a fastening plate (61) and a fastening screw (62), the fastening plate (61) being fixed on the positioning plate (4) and abutting against the side wall of the positioning block (3); The fastening plate (61) is provided with a movable groove (611) along its length direction, the positioning block (3) is provided with a fastening groove (33), and the fastening screw (62) can pass through the movable groove (611) and threadably engage with the fastening groove (33).

5. A positioning tool according to claim 3, characterized in that: It also includes a fixing block (7) for mounting the positioning block (3), the base (1) being provided with a slide groove (11), a sliding block (9) matching the slide groove (11) being protruding from the bottom side of the fixing block (7), and the positioning block (3) being detachably connected to the side wall of the fixing block (7).

6. A positioning tool according to claim 5, characterized in that: A driving cylinder (10) is provided on a side of the fixed block (7) facing away from the positioning platform (2); the driving cylinder (10) is mounted on the base (1) and is capable of pushing the fixed block (7) to move.

7. A positioning tool according to claim 1, characterized in that: The height of the positioning plate (4) is adjustable. A threaded rod (20) is vertically arranged between the positioning plate (4) and the positioning block (3). One end of the threaded rod (20) is surrounded by a convex edge (30) and is placed in the positioning platform (2). The other end of the threaded rod (20) is inserted into the positioning plate (4).

8. A positioning tool according to claim 7, characterized in that: It also includes a transmission member (8) for driving the threaded rod (20) to rotate, the transmission member (8) including a drive motor (81) and a transversely arranged transmission rod (82), the drive motor (81) being mounted on the positioning platform (2), one end of the transmission rod (82) being inserted into the positioning platform (2) and connected to the threaded rod (20) by gear transmission, and the other end of the transmission rod (82) being connected to the output end of the drive motor (81).

9. A positioning tool according to claim 8, characterized in that: A plurality of limiting rods (40) arranged around the threaded rod (20) are arranged between the positioning plate (4) and the positioning block (3); one end of the limiting rod (40) is fixed to the bottom wall of the positioning plate (4), and the other end of the limiting rod (40) is inserted into the positioning platform (2).

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