A clamping and punching tool suitable for small-sized workpieces

Abstract

This utility model relates to the field of magnetic drilling technology, and in particular to a clamping and drilling fixture suitable for small-sized workpieces. It includes a worktable, a mounting bracket on top of the worktable, a lifting mechanism mounted on the mounting bracket, a frame-shaped mounting part connected to the bottom of the lifting mechanism, and a magnetic drill detachably connected to the mounting part. The drill bit of the magnetic drill extends towards the upper surface of the worktable, and the mounting part drives the magnetic drill to move up and down along the lifting mechanism. A placement bracket is also provided on the upper surface of the worktable, opposite to the drill bit of the magnetic drill. Multiple clamping devices are also installed at intervals on the upper surface of the worktable, distributed circumferentially around the placement bracket, with the clamping arms of each device extending upwards towards the placement bracket. By detachably mounting the magnetic drill to the moving part of a vertical lead screw, the automatic feed function of the magnetic drill is achieved, and it can be detached and used independently as a magnetic drill when not in use.

Description

Technical Field

[0001] This utility model relates to the field of magnetic drilling technology, and in particular to a clamping and drilling fixture suitable for small workpieces. Background Technology

[0002] A magnetic drill works by generating a magnetic field in the electromagnet at the base of the drill after it is powered on, attracting the drill bit to the steel workpiece. Then, the high-speed rotation of the magnetic drill motor drives the drill bit to drill holes or thread the steel plate. It features small size and high efficiency and is widely used in steel structures, shipbuilding, equipment manufacturing, equipment installation, bridge engineering, wind power generation, oil drilling platforms, power construction, railway manufacturing and other fields.

[0003] When using a magnetic drill, it is necessary to manually lift the magnetic drill onto the workpiece to be drilled and then rely on magnetic force to attract it. Generally, the net weight of a magnetic drill is close to 45Kg, while the small workpiece used on site is only 5Kg. Moving the magnetic drill is time-consuming and laborious.

[0004] Therefore, in order to address the above problems, this utility model urgently needs to provide a clamping and drilling fixture suitable for small-sized workpieces. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping and drilling fixture suitable for small workpieces. By detachably mounting the magnetic drill on the moving part of the vertical lead screw, it solves the problems of time-consuming and laborious manual lifting of the magnetic drill in the prior art.

[0006] A clamping and drilling fixture suitable for small workpieces includes a worktable, a mounting bracket above the worktable, a lifting mechanism mounted on the mounting bracket, a frame-shaped mounting part connected to the bottom of the lifting mechanism, a magnetic drill detachably connected to the mounting part, the drill bit of the magnetic drill extending toward the upper surface of the worktable, and the mounting part driving the magnetic drill to move up and down along the lifting mechanism.

[0007] The upper surface of the worktable is also provided with a placement bracket for suspending the workpiece in the air. The placement bracket is positioned opposite to the drill bit of the magnetic drill. Multiple clamping devices are also installed at intervals on the upper surface of the worktable. Each clamping device is distributed around the circumference of the placement bracket, and the clamping arm of each clamping device extends upward toward the placement bracket.

[0008] Furthermore, the support frame includes two support beams symmetrically mounted on the upper surface of the workbench.

[0009] Furthermore, each supporting beam includes a connecting plate for connecting to the upper surface of the workbench, a support plate for vertical support, and a placement plate for placing workpieces. The long sides of the connecting plate, support plate, and placement plate are connected in sequence to form a groove structure. The openings of the two supporting beams are arranged opposite to each other.

[0010] Furthermore, the mounting bracket includes multiple mounting rods that are vertically mounted on the upper surface of the workbench, and a horizontally mounted plate is fixed to the top of each mounting rod.

[0011] Furthermore, the lifting mechanism includes two vertical lead screws respectively installed on both sides of the placement bracket, and the top of each of the two vertical lead screws is provided with a synchronously rotating drive motor, and the output shaft of each drive motor is coaxially arranged with each vertical lead screw; each drive motor is respectively installed on the mounting plate; both ends of the mounting part are respectively screwed to the two vertical lead screws; a distance sensor is also installed below the mounting part, and a controller is also included; wherein, the distance sensor is electrically connected to the controller, and the controller is electrically connected to each drive motor.

[0012] Furthermore, the lifting mechanism includes a traction motor horizontally fixed to the upper surface of the mounting plate, a traction rope wound on the output shaft of the traction motor, and the other end of the traction rope fixed to the mounting part; a distance sensor is also installed below the mounting part, and a controller is also included; wherein, the distance sensor is electrically connected to the controller, and the controller is electrically connected to the traction motor.

[0013] Furthermore, the mounting section and the magnetic drill can be detachably connected via magnetic attraction, snap-fit, or screw connection.

[0014] Furthermore, the upper surface of the workbench is also provided with two synchronously operating transverse movement mechanisms, which are arranged parallel to each other on both sides of the placement bracket; the mounting bracket and the lifting mechanism are both fixed to the transverse movement mechanisms.

[0015] Furthermore, all the supports are made of metal.

[0016] Furthermore, each clamping device is a cylinder.

[0017] The clamping and drilling fixture for small workpieces provided by this utility model has the following advantages compared with the prior art:

[0018] This utility model provides a clamping and drilling fixture suitable for small workpieces. A magnetic drill is fixed to a vertically movable mounting part. A lifting mechanism drives the mounting part to move up and down, enabling automatic feed. The magnetic drill can be used as a bench drill without manual lifting, saving labor. Furthermore, the magnetic drill is detachably connected to the mounting part, allowing it to be used independently as a magnetic drill when not in use, thus converting it into a bench drill. In addition, this utility model uses a placement bracket to suspend the bottom of the workpiece above the worktable, avoiding incomplete drilling or damage to the worktable surface caused by the workpiece bottom touching the worktable. Simultaneously, a clamping device secures the workpiece, preventing slippage during drilling. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art 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 from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram (perspective view) of the first embodiment of the clamping and punching fixture for small workpieces described in this utility model;

[0021] Figure 2 This is a schematic diagram (perspective view) of the second embodiment of the clamping and punching fixture for small workpieces described in this utility model;

[0022] Figure 3 This is a schematic diagram (sectional view) of the placement bracket described in this utility model;

[0023] Figure 4 This is a control flowchart of the traction motor described in this utility model;

[0024] Figure 5 This is a control flowchart of the drive motor described in this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Workbench; 2. Mounting section; 3. Support beam; 301. Connecting plate; 302. Support plate; 303. Placement plate; 4. Clamping device; 401. Clamping arm; 5. Mounting bracket; 501. Mounting rod; 502. Mounting plate; 601. Vertical lead screw; 602. Drive motor; 701. Traction motor; 702. Traction rope. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figure 1 , Figure 2 As shown, the present invention provides a clamping and drilling fixture suitable for small workpieces, including a worktable 1, an mounting bracket 5 above the worktable 1, a lifting mechanism mounted on the mounting bracket 5, a frame-shaped mounting part 2 connected to the bottom of the lifting mechanism, a magnetic drill detachably connected to the mounting part 2, the drill bit of the magnetic drill extending toward the upper surface of the worktable 1, and the mounting part 2 driving the magnetic drill to move up and down along the lifting mechanism.

[0031] The upper surface of the workbench 1 is also provided with a placement bracket for suspending the workpiece in the air. The placement bracket is positioned opposite to the drill bit of the magnetic drill. Multiple clamping devices 4 are also installed at intervals on the upper surface of the workbench 1. Each clamping device 4 is distributed around the circumference of the placement bracket, and the clamping arm 401 of each clamping device 4 extends upward toward the placement bracket.

[0032] This utility model provides a clamping and drilling fixture suitable for small-sized workpieces. A magnetic drill is fixed to a vertically movable mounting part 2. A lifting mechanism drives the mounting part to move up and down, enabling automatic feed. The magnetic drill can be used as a bench drill without the need for manual lifting, saving manpower. Furthermore, the magnetic drill is detachably connected to the mounting part 2, allowing it to be used independently as a magnetic drill when not in use, thus converting it into a bench drill. In addition, this utility model uses a placement bracket to suspend the bottom of the workpiece above the worktable 1, preventing incomplete drilling or damage to the worktable surface caused by the workpiece bottom touching the worktable. Simultaneously, a clamping device 4 secures the workpiece, preventing slippage during drilling.

[0033] like Figure 1 , Figure 2 As shown, the support bracket includes two support beams 3 symmetrically installed on the upper surface of the workbench 1.

[0034] In this invention, the workpiece is raised and suspended by two supporting beams 3, so that there is a certain distance between the lower surface of the workpiece and the upper surface of the worktable 1. At this time, when the magnetic drill is drilling, it can completely penetrate the workpiece until the drill bit enters the gap between the lower surface of the workpiece and the upper surface of the worktable 1, thus avoiding incomplete drilling or damage to the surface of the worktable 1.

[0035] like Figure 3 As shown, each supporting beam 3 includes a connecting plate 301 for connecting to the upper surface of the workbench 1, a supporting plate 302 for vertical support, and a placement plate 303 for placing workpieces. The long sides of the connecting plate 301, the supporting plate 302, and the placement plate 303 are connected in sequence to form a groove structure. The openings of the two supporting beams 3 are arranged opposite to each other.

[0036] like Figure 1 , Figure 2 As shown, the mounting bracket 5 includes multiple mounting rods 501 that are vertically mounted on the upper surface of the workbench 1, and a horizontally mounted plate 502 is fixed to the top of each mounting rod 501.

[0037] like Figure 2 , Figure 5 As shown, the lifting mechanism includes two vertical lead screws 601 respectively installed on both sides of the placement bracket. The top ends of the two vertical lead screws 601 are respectively provided with synchronously rotating drive motors 602. The output shaft of each drive motor 602 is coaxially arranged with each vertical lead screw 601. Each drive motor 602 is respectively installed on the mounting plate 502. Both ends of the mounting part 2 are respectively screwed to the two vertical lead screws 601. A distance sensor is also installed below the mounting part 2, and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to each drive motor 602.

[0038] like Figure 1 , Figure 4 As shown, the lifting mechanism includes a traction motor 701 that is horizontally fixed to the upper surface of the mounting plate 502. A traction rope 702 is wound on the output shaft of the traction motor 701, and the other end of the traction rope 702 is fixed to the mounting part 2. A distance sensor is also installed below the mounting part 2, and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to the traction motor 701.

[0039] In this embodiment, the mounting part 2 and the magnetic drill are detachably connected by magnetic attraction, snap-fit, or screw connection.

[0040] like Figure 1 , Figure 2As shown, the upper surface of the workbench 1 is also provided with two synchronously operating transverse movement mechanisms, which are arranged parallel to each other on both sides of the placement bracket; the mounting bracket 5 and the lifting mechanism are both fixed to the transverse movement mechanism.

[0041] In this embodiment, all the supports are made of metal.

[0042] In this embodiment, each clamping device 4 is a cylinder.

[0043] First embodiment:

[0044] A clamping and drilling fixture suitable for small workpieces includes a worktable 1, an mounting bracket 5 above the worktable 1, a lifting mechanism mounted on the mounting bracket 5, a frame-shaped mounting part 2 connected to the bottom of the lifting mechanism, a magnetic drill detachably connected to the mounting part 2, the drill bit of the magnetic drill extending toward the upper surface of the worktable 1, and the mounting part 2 driving the magnetic drill to move up and down along the lifting mechanism.

[0045] The upper surface of the workbench 1 is also provided with a placement bracket for suspending the workpiece. The placement bracket is positioned opposite to the drill bit of the magnetic drill. Multiple clamping devices 4 are also installed at intervals on the upper surface of the workbench 1. Each clamping device 4 is distributed around the circumference of the placement bracket, and the clamping arms 401 of each clamping device 4 extend upward toward the placement bracket.

[0046] The lifting mechanism includes a traction motor 701 that is horizontally fixed to the upper surface of the mounting plate 502. A traction rope 702 is wound on the output shaft of the traction motor 701, and the other end of the traction rope 702 is fixed to the mounting part 2. A distance sensor is also installed below the mounting part 2, and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to the traction motor 701.

[0047] The implementation of the first embodiment includes the following steps:

[0048] 1) When it is necessary to drill holes in the workpiece, place the workpiece on the placement bracket so that the part of the workpiece located below the drill bit of the magnetic drill is suspended in the air, and use each clamping device 4 to drive each clamping arm 401 to clamp the workpiece.

[0049] 2) Use the traction motor 701 to drive the traction rope 702 to release the magnetic drill downwards, so that the magnetic drill moves vertically downwards until the magnetic drill and the workpiece are magnetically attracted together. The magnetic drill starts to work, and the drill bit passes through the workpiece to the area between the placement plate 303 and the worktable 1.

[0050] 3) The traction motor 701 reverses, driving the traction rope 702 to pull the magnetic drill upward, causing the drill bit of the magnetic drill to leave the workpiece, and the magnetic drill returns to the top of its stroke, completing the drilling operation on the workpiece.

[0051] Second embodiment:

[0052] A clamping and drilling fixture suitable for small workpieces includes a worktable 1, an mounting bracket 5 above the worktable 1, a lifting mechanism mounted on the mounting bracket 5, a frame-shaped mounting part 2 connected to the bottom of the lifting mechanism, a magnetic drill detachably connected to the mounting part 2, the drill bit of the magnetic drill extending toward the upper surface of the worktable 1, and the mounting part 2 driving the magnetic drill to move up and down along the lifting mechanism.

[0053] The upper surface of the workbench 1 is also provided with a placement bracket for suspending the workpiece. The placement bracket is positioned opposite to the drill bit of the magnetic drill. Multiple clamping devices 4 are also installed at intervals on the upper surface of the workbench 1. Each clamping device 4 is distributed around the circumference of the placement bracket, and the clamping arms 401 of each clamping device 4 extend upward toward the placement bracket.

[0054] The lifting mechanism includes two vertical lead screws 601 respectively installed on both sides of the placement bracket. The top ends of the two vertical lead screws 601 are respectively provided with synchronously rotating drive motors 602. The output shaft of each drive motor 602 is coaxially arranged with each vertical lead screw 601. Each drive motor 602 is respectively installed on the mounting plate 502. Both ends of the mounting part 2 are respectively screwed to the two vertical lead screws 601. A distance sensor is also installed below the mounting part 2, and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to each drive motor 602.

[0055] The second embodiment includes the following steps:

[0056] 1) When it is necessary to drill holes in the workpiece, place the workpiece on the placement bracket so that the part of the workpiece located below the drill bit of the magnetic drill is suspended in the air, and use each clamping device 4 to drive each clamping arm 401 to clamp the workpiece.

[0057] 2) Use the drive motor 602 to drive the two vertical lead screws 601 to rotate, so that the magnetic drill moves vertically downward until the magnetic drill and the workpiece are magnetically attracted together. The magnetic drill starts to work, and the drill bit passes through the workpiece to the area between the placement plate 303 and the worktable 1.

[0058] 3) The drive motor 602 reverses, causing the two vertical lead screws 601 to rotate in the opposite direction and pull the magnetic drill upward, so that the drill bit of the magnetic drill leaves the workpiece and the magnetic drill returns to the top of its stroke, completing the drilling operation on the workpiece.

[0059] In this invention, since the magnetic drill is connected to the mounting part 2 in a detachable fixing manner, the magnetic drill can be removed and used independently simply by disassembling the connection structure between the mounting part 2 and the magnetic drill, thus enabling the switching of multiple usage methods.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A clamping and drilling fixture suitable for small-sized workpieces, characterized in that: Includes a workbench (1), with a mounting bracket (5) above the workbench (1), a lifting mechanism mounted on the mounting bracket (5), a frame-shaped mounting part (2) connected to the bottom of the lifting mechanism, a magnetic drill detachably connected to the mounting part (2), the drill bit of the magnetic drill extending toward the upper surface of the workbench (1), and the mounting part (2) driving the magnetic drill to move up and down along the lifting mechanism; The upper surface of the workbench (1) is also provided with a placement bracket for suspending the workpiece. The placement bracket is positioned opposite to the drill bit of the magnetic drill. The upper surface of the workbench (1) is also provided with multiple clamping devices (4) at intervals. Each clamping device (4) is distributed around the circumference of the placement bracket, and the clamping arm (401) of each clamping device (4) extends upward toward the placement bracket.

2. The clamping and punching tool suitable for small size workpieces according to claim 1, characterized in that: The support frame includes two support beams (3) symmetrically mounted on the upper surface of the workbench (1).

3. The clamping and punching tool suitable for small size workpieces according to claim 2, characterized in that: Each support beam (3) includes a connecting plate (301) for connecting to the upper surface of the workbench (1), a support plate (302) for vertical support, and a placement plate (303) for placing workpieces. The long sides of the connecting plate (301), the support plate (302), and the placement plate (303) are connected in sequence to form a groove structure. The openings of the two support beams (3) are arranged opposite to each other.

4. The clamping and punching tool suitable for small size workpieces according to claim 3, characterized in that: The mounting bracket (5) includes multiple mounting rods (501) that are vertically mounted on the upper surface of the workbench (1), and each mounting rod (501) has a horizontally mounted plate (502) fixed to its top.

5. The clamping and punching tool suitable for small size workpieces according to claim 4, characterized in that: The lifting mechanism includes two vertical lead screws (601) respectively installed on both sides of the placement bracket. The top ends of the two vertical lead screws (601) are respectively provided with synchronously rotating drive motors (602). The output shaft of each drive motor (602) is coaxially arranged with each vertical lead screw (601). Each drive motor (602) is respectively installed on the mounting plate (502). Both ends of the mounting part (2) are respectively screwed to the two vertical lead screws (601). A distance sensor is also installed below the mounting part (2), and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to each drive motor (602).

6. The clamping and drilling fixture for small workpieces according to claim 4, characterized in that: The lifting mechanism includes a traction motor (701) that is horizontally fixed to the upper surface of the mounting plate (502). A traction rope (702) is wound on the output shaft of the traction motor (701), and the other end of the traction rope (702) is fixed to the mounting part (2). A distance sensor is also installed below the mounting part (2), and a controller is also included. The distance sensor is electrically connected to the controller, and the controller is electrically connected to the traction motor (701).

7. The clamping and piercing tool suitable for small size workpieces according to claim 5 or 6, characterized in that: The mounting part (2) can be detachably connected to the magnetic drill by means of magnetic attraction, snap-fit ​​or screw connection.

8. The clamping and piercing tool suitable for small size workpieces according to claim 7, characterized in that: The upper surface of the workbench (1) is also provided with two synchronously operating transverse mechanisms, which are arranged parallel to each other on both sides of the placement bracket; the mounting bracket (5) and the lifting mechanism are both fixed to the transverse mechanisms.

9. The clamping and piercing tool suitable for small size workpieces according to claim 8, characterized in that: All the support brackets are made of metal.

10. The clamping and piercing tool suitable for small size workpieces according to claim 9, characterized in that: Each clamping device (4) is a cylinder.

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