Tapping tool for supports

Abstract

The tapping tool comprises a workbench, square plates are arranged on the tops of the left side and the right side of the workbench, arc-shaped clamping plates are connected to the middles of the opposite sides of the two sets of square plates through rotating connecting pieces, and a moving assembly which pushes the arc-shaped clamping plates inwards at the same time to clamp a support is arranged at the bottom of the workbench. By means of the arrangement of the arc-shaped clamping plates and the rotating connecting pieces, when the two-way lead screw rotates, the arc-shaped clamping plates on the two sides can move inwards at the same time, the support is fixed, and in addition, the two-way lead screw can be fixed through the rotating connecting pieces. The arc-shaped clamping plate can be adjusted according to the contour angle of the surface of the support, so that the arc-shaped clamping plate can be better attached to the outer surface of the irregular support, the contact area between the arc-shaped clamping plate and the support is increased, and stable clamping is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of tapping fixtures for brackets, specifically a tapping fixture for brackets. Background Technology

[0002] Tapping fixtures are mechanical processing equipment used to machine internal threads, screws, or threads on the inner surface of holes in various parts such as machine housings, equipment end faces, nuts, and flanges with different specifications of through holes or blind holes.

[0003] Currently, Chinese Patent CN221336960U discloses a tapping device for processing bracket assemblies, including a frame with a worktable fixedly mounted on top. This utility model, a tapping device for processing bracket assemblies, utilizes a worktable, electric slide rail, electric slider, placement frame, handle, first lead screw, movable frame, cylinder, and clamping plate. By placing the bracket assembly in the placement frame, and rotating the handle according to the size of the bracket assembly, the first lead screw rotates. During rotation, two sets of movable frames clamp and fix the bracket assembly on both sides, improving overall stability. Then, the cylinder switch is activated, causing the clamping plate to clamp the bracket vertically, providing clamping and positioning. Finally, the electric slide rail switch is activated, sliding the placement frame to the tapping area. This design improves the stability of the bracket assembly and prevents workers from putting their hands inside, thus avoiding safety hazards.

[0004] The aforementioned tapping equipment for processing bracket assemblies still has some problems in use. For brackets with irregular shapes, such as brackets with special structures like protrusions, depressions, or bends, the clamping plates are difficult to apply clamping force evenly to fix the bracket. As a result, during tapping, there may be situations such as displacement or rotation. Utility Model Content

[0005] The purpose of this utility model is to provide a tapping fixture of the bracket type to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tapping fixture for a bracket includes a worktable. Square plates are provided on the top of both the left and right sides of the worktable. Arc-shaped clamping plates are connected to the middle of the opposite side of the two sets of square plates through a rotating connector. A moving component is provided at the bottom of the worktable to simultaneously push the arc-shaped clamping plates inward to clamp the bracket. A tapping component is provided at the top of the rear side of the worktable for tapping holes on the surface of the bracket.

[0008] The moving component includes a bidirectional lead screw rotatably connected to the bottom of the worktable. Both ends of the bidirectional lead screw are fitted with second bearing seats. Connecting arms are provided on the front and rear sides of the two sets of second bearing seats. The ends of the two sets of connecting arms on the same side extend upward and are slidably connected to the bottom of the corresponding side of the worktable. Both ends of the bidirectional lead screw are threadedly connected to second nut seats. U-shaped frames are fixedly connected to the top of the two sets of second nut seats. The other ends of the two sets of U-shaped frames are fixedly connected to the surface of the corresponding side square plate. The worktable is equipped with a displacement component that drives the support to move by the bidirectional lead screw moving back and forth.

[0009] The rotating connector includes circular holes opened on the top of the two sets of arc-shaped clamps. The inner cavities of the two sets of circular holes are rotatably connected to connecting columns. The upper and lower ends of the two sets of connecting columns are fixedly connected to fixing plates. The two sets of fixing plates on the same side are respectively fixedly connected to the surface of the corresponding side square plate.

[0010] As a preferred technical solution, the displacement component includes a receiving groove formed inside the worktable, a first lead screw rotatably connected to the inner cavity of the receiving groove, a first nut seat threadedly connected to the surface of the first lead screw, a connecting hole communicating with the receiving groove being formed at the bottom of the worktable and at a position corresponding to the receiving groove, a first bearing being sleeved in the middle of the bidirectional lead screw, a fixing strip being fixedly connected to the bottom of the first nut seat, and one end of the fixing strip passing through the connecting hole and being fixedly connected to the top of the first bearing.

[0011] As a preferred technical solution, the tapping assembly includes a support rod fixedly installed on the top rear side of the workbench. A connecting plate is rotatably sleeved on the top end of the support rod, and an electric push rod is fixedly installed on the top of the other end of the connecting plate. The telescopic end of the electric push rod passes downward through the connecting plate and is fixedly connected to the tapping machine.

[0012] As a preferred technical solution, both ends of the two sets of arc-shaped clamps are provided with arc-shaped holes. Each set of arc-shaped holes has a pin inserted into its inner cavity. The ends of the pins extend upward and are aligned with the openings of the arc-shaped holes on the corresponding sides. Each set of pins has an anti-dislodgement component at its end to prevent the pin from disengaging from the corresponding side arc-shaped hole. Each set of pins has a connecting strip connected to its top via a detachable connector. The other end of each connecting strip is threaded with a lead screw. Each lead screw is threaded through the end of the corresponding side connecting strip.

[0013] As a preferred technical solution, the anti-detachment component includes a threaded post fixedly connected to the top of each set of plug pins, and each set of threaded posts has a nut threadedly connected to its surface, with the bottom of each set of nuts contacting the top of the corresponding side arc-shaped clamp.

[0014] As a preferred technical solution, the detachable connector includes a threaded hole opened at the top of the threaded column, and a threaded rod is threadedly connected inside each set of threaded holes. Each set of connecting bars is rotatably sleeved on the neck of the threaded rod at the corresponding side position, and a handwheel is fixedly connected to the top of each set of threaded rods.

[0015] As a preferred technical solution, a fixing ring is fixedly connected to one side of one set of second bearing seats, one end of the bidirectional lead screw extends into the inner cavity of the fixing ring, a fixing bolt is threadedly connected to the surface of the fixing ring, and the end thread of the fixing bolt passes through the fixing ring and abuts against the end surface of the bidirectional lead screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the setting of arc-shaped clamps and rotating connectors, allows the arc-shaped clamps on both sides to move inward simultaneously when the bidirectional lead screw rotates, thereby fixing the bracket. Furthermore, the arc-shaped clamps can be adjusted according to the contour angle of the bracket surface, so that the arc-shaped clamps can better fit the outer surface of the irregular bracket, increase the contact area with the bracket, and thus achieve a more stable clamping.

[0018] 2. By setting a lead screw, the lead screw abuts against the surface of the bracket or into the hole on the surface of the bracket, further fixing the relative position of the arc-shaped clamp and the bracket, preventing the bracket from shaking during the tapping process, and improving the stability and accuracy of tapping.

[0019] 3. This utility model, through the setting of the anti-detachment component, can reliably fix the plug pin in the arc-shaped hole, preventing the plug pin from accidentally falling off during equipment operation and ensuring the normal operation of the equipment. At the same time, by loosening the nut, the position of the plug pin can be easily adjusted along the arc-shaped hole, thereby adjusting the position of the connecting strip, and then adjusting it according to the fixing needs of different brackets.

[0020] 4. By disassembling the connecting parts, the threaded rod can be easily screwed into or out of the threaded hole by rotating the handwheel, realizing the quick disassembly and installation of the connecting strip. At the same time, the height of the connecting strip can be adjusted according to the height of the bracket, improving the adjustment efficiency of the equipment. Furthermore, the connecting strip is rotatably sleeved on the neck of the threaded rod and can rotate freely within a certain range, making it easy to adjust the angle of the screw according to the actual situation of the bracket to better abut against the bracket surface. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the tapping fixture of the bracket type according to this utility model;

[0022] Figure 2 This is a cross-sectional view of the workbench of this utility model.

[0023] Figure 3 This is a schematic diagram of the connecting column of this utility model;

[0024] Figure 4 This is a schematic diagram of the arc-shaped hole of this utility model.

[0025] In the picture:

[0026] 100. Worktable; 101. Receiving groove; 102. Connecting hole;

[0027] 200. Support rod; 201. Connecting plate; 202. Electric push rod; 203. Tapping machine;

[0028] 300. Square plate; 301. Arc-shaped clamping plate; 302. Arc-shaped hole; 303. Circular hole; 304. Connecting post; 305. Fixing plate; 306. U-shaped frame;

[0029] 400. Handwheel; 401. Connecting bar; 402. Lead screw; 403. Threaded rod; 404. Nut; 405. Threaded hole; 406. Threaded post; 407. Insert pin;

[0030] 500, First lead screw; 502, First nut seat; 503, Fixing bar; 504, Double-acting lead screw; 505, First bearing; 507, Bearing seat; 508, Connecting arm; 509, Fixing bolt; 510, Fixing ring; 511, Second nut seat. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-4 This embodiment provides a tapping fixture for a bracket, including a worktable 100. Square plates 300 are provided on the top of both the left and right sides of the worktable 100. Arc-shaped clamping plates 301 are connected to the middle of the opposite side of the two sets of square plates 300 through a rotating connector. A moving component is provided at the bottom of the worktable 100 to simultaneously push the arc-shaped clamping plates 301 inward to clamp the bracket. A tapping component is provided at the top of the rear side of the worktable 100 for tapping the holes on the surface of the bracket.

[0033] The moving component includes a bidirectional lead screw 504 rotatably connected to the bottom of the worktable 100. Both ends of the bidirectional lead screw 504 are fitted with second bearing seats 507. Connecting arms 508 are provided on the front and rear sides of the two sets of second bearing seats 507. The ends of the two sets of connecting arms 508 on the same side extend upward and are slidably connected to the bottom of the corresponding side of the worktable 100. The two ends of the bidirectional lead screw 504 are threadedly connected to second nut seats 511. U-shaped frames 306 are fixedly connected to the top of the two sets of second nut seats 511. The other ends of the two sets of U-shaped frames 306 are fixedly connected to the surface of the corresponding side square plate 300. The worktable 100 is provided with a displacement component that drives the support to move by moving the bidirectional lead screw 504 back and forth.

[0034] The rotating connector includes circular holes 303 on the top of two sets of arc-shaped clamping plates 301. The inner cavities of the two sets of circular holes 303 are rotatably connected to connecting posts 304. The upper and lower ends of the two sets of connecting posts 304 are fixedly connected to fixing plates 305. The two sets of fixing plates 305 on the same side are respectively fixedly connected to the surface of the corresponding side square plate 300. Through the arrangement of the arc-shaped clamping plates 301 and the rotating connector, when the bidirectional lead screw 504 rotates, the arc-shaped clamping plates 301 on both sides can move inward at the same time to fix the bracket. In addition, the arc-shaped clamping plates 301 can be adjusted according to the contour angle of the bracket surface, so that the arc-shaped clamping plates 301 can better fit the outer surface of the irregular bracket, increase the contact area with the bracket, and thus achieve a more stable clamping.

[0035] The displacement component includes a receiving groove 101 inside the worktable 100. A first lead screw 500 is rotatably connected to the inner cavity of the receiving groove 101. A first nut seat 502 is threadedly connected to the surface of the first lead screw 500. A connecting hole 102 is provided at the bottom of the worktable 100 and at a position corresponding to the receiving groove 101, communicating with the receiving groove 101. A first bearing 505 is sleeved in the middle of the bidirectional lead screw 504. A fixing strip 503 is fixedly connected to the bottom of the first nut seat 502. One end of the fixing strip 503 passes through the connecting hole 102 and is fixedly connected to the top of the first bearing 505. Through the setting of the displacement component, the first lead screw 500 drives the first nut seat 502 to move, thereby driving the bidirectional lead screw 504 and the support to move back and forth, which can accurately control the position of the support during the tapping process and improve the tapping accuracy.

[0036] The tapping assembly includes a support rod 200 fixedly installed on the top rear side of the workbench 100. A connecting plate 201 is rotatably sleeved on the top end of the support rod 200. An electric push rod 202 is fixedly installed on the top of the other end of the connecting plate 201. The telescopic end of the electric push rod 202 passes downward through the connecting plate 201 and is fixedly connected to a tapping machine 203. With the setting of the tapping assembly, the connecting plate 201 can rotate around the support rod 200, which can adjust the tapping machine 203 to different angles and positions, making it convenient to tap holes at different positions of the bracket and increasing the flexibility of tapping.

[0037] Among them, the tapping machine 203 is a well-known technical means in the art. For its specific working principle and structure, please refer to the tapping machine in the nut tapping tool of a bracket published in CN217290776U. The rest will not be described in detail here.

[0038] The two sets of arc-shaped clamps 301 each have arc-shaped holes 302 at their top ends. Each set of arc-shaped holes 302 has a pin 407 inserted into its inner cavity. The ends of the pins 407 extend upward and are aligned with the openings of the arc-shaped holes 302 on the corresponding side. Each set of pins 407 has an anti-disengagement component at its end to prevent it from disengaging from the arc-shaped hole 302 on the corresponding side. Each set of pins 407 has a connecting strip 401 connected to its top via a detachable connector. The other end of each connecting strip 401 is threaded with a lead screw 402. Each lead screw 402 is threaded through the end of the connecting strip 401 on the corresponding side. With the lead screw 402, the lead screw 402 abuts against the surface of the bracket or into the hole on the surface of the bracket, further fixing the relative position of the arc-shaped clamps 301 and the bracket, preventing the bracket from shaking during tapping, and improving the stability and accuracy of tapping.

[0039] The anti-detachment component includes a threaded post 406 fixedly connected to the top of each set of plug pins 407. Each set of threaded posts 406 has a nut 404 threadedly connected to its surface. The bottom of each nut 404 contacts the top of the corresponding side arc-shaped clamp 301. By setting the anti-detachment component, the plug pins 407 can be reliably fixed in the arc-shaped hole 302, preventing the plug pins 407 from accidentally falling off during equipment operation and ensuring the normal operation of the equipment. At the same time, by loosening the nut 404, the position of the plug pins 407 can be easily adjusted along the arc-shaped hole 302, thereby adjusting the position of the connecting strip 401, and thus adjusting it according to the fixing needs of different brackets.

[0040] The detachable connector includes a threaded hole 405 on the top of the threaded post 406. Each threaded hole 405 is threaded with a threaded rod 403. Each connecting strip 401 is rotatably sleeved on the neck of the threaded rod 403 on the corresponding side. A handwheel 400 is fixedly connected to the top of each threaded rod 403. By rotating the handwheel 400, the threaded rod 403 can be easily screwed into or out of the threaded hole 405, realizing the quick disassembly and installation of the connecting strip 401. At the same time, the height of the connecting strip 401 can be adjusted according to the height of the bracket, improving the adjustment efficiency of the equipment. Furthermore, the connecting strip 401 can rotate freely within a certain range on the neck of the threaded rod 403, which facilitates the adjustment of the angle of the screw 402 according to the actual situation of the bracket, so as to better abut against the bracket surface.

[0041] The threaded rod 403 can pass through the threaded hole 405 downwards and be inserted into the inside of the insertion pin 407.

[0042] It is worth noting that a retaining ring 510 is fixedly connected to one side of one of the second bearing seats 507. One end of the bidirectional lead screw 504 extends into the inner cavity of the retaining ring 510. A fixing bolt 509 is threadedly connected to the surface of the retaining ring 510. The threaded end of the fixing bolt 509 passes through the retaining ring 510 and abuts against the end surface of the bidirectional lead screw 504. Through the setting of the retaining ring 510 and the fixing bolt 509, after the bidirectional lead screw 504 is adjusted to a suitable position, tightening the fixing bolt 509 can firmly fix the bidirectional lead screw 504, preventing it from rotating during operation, ensuring the stability of the arc-shaped clamping plate 301 holding bracket, and thus improving the tapping quality.

[0043] Working principle;

[0044] First, place the bracket on the surface of the workbench 100, then rotate the double-acting screw 504, so that the two sets of second nut seats 511 move inward at the same time, and the square plate 300 moves inward through the U-shaped frame 306, which in turn causes the arc-shaped clamping plate 301 connected to the square plate 300 to also move inward, thereby clamping the bracket.

[0045] After the bidirectional lead screw 504 is adjusted to the appropriate position, the fixing bolt 509 can be tightened so that the end of the fixing bolt 509 is tightly abutted against the end surface of the bidirectional lead screw 504, thereby fixing the bidirectional lead screw 504 and preventing it from rotating during operation.

[0046] At the same time, loosen the nut 404, push the plug pin 407 to move along the arc hole 302, move the plug pin 407 to the required position, and tighten the nut 404. Then rotate the connecting bar 401, rotate the screw 402 at the end of the connecting bar 401 to the top of the bracket, and rotate the screw 402 downward so that the end of the screw 402 abuts against the surface of the bracket or the hole in the surface of the bracket to further fix the bracket.

[0047] When the height of the workpiece is higher than the connecting bar 401, the operator turns the handwheel 400, which drives the threaded rod 403 to rotate, thereby unscrewing it from the inner cavity of the threaded hole 405 and adjusting the height of the connecting bar 401.

[0048] At this time, rotate the connecting plate 201 to adjust the tapping machine 203 to a suitable position so that it is aligned with the hole on the surface of the bracket. Then, start the electric push rod 202. The telescopic end of the electric push rod 202 extends downward, driving the tapping machine 203 to move downward, thereby performing tapping operation on the hole on the surface of the bracket.

[0049] When tapping is required in other locations, the first lead screw 500 is rotated, causing the first nut seat 502 to move back and forth along the first lead screw 500. This, in turn, drives the bidirectional lead screw 504 to move back and forth via the fixing bar 503 and the first bearing 505. Since the bidirectional lead screw 504 is connected to the arc-shaped clamp 301, which in turn holds the bracket, the bracket also moves back and forth accordingly, thus enabling tapping operations in different areas.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tapping tool for stents, characterized in that, The utility model provides a workbench, the left and right sides top of the workbench (100) are provided with square plate (300), the middle part of the opposite side of two groups of square plate (300) is connected with arc clamping plate (301) through rotating joint, the bottom of the workbench (100) is provided with the moving assembly that pushes arc clamping plate (301) to the support for clamping simultaneously, the top of the rear side of the workbench (100) is equipped with the tapping assembly for tapping the surface hole of support.

2. The tapping tool for stents according to claim 1, characterized in that: The moving assembly includes a bidirectional screw rod (504) rotatably connected to the bottom of the workbench (100), both ends of the bidirectional screw rod (504) are sleeved with second bearing seats (507), both sides of the two groups of second bearing seats (507) are provided with connecting arms (508), both groups of connecting arms (508) on the same side extend upward and are slidably connected to the corresponding side bottom of the workbench (100), both ends of the bidirectional screw rod (504) are threadedly connected with second nut seats (511), the top of both groups of second nut seats (511) is fixedly connected with U-shaped frames (306), the other end of both groups of U-shaped frames (306) is fixedly connected to the surface of the corresponding side square plate (300), the inside of the workbench (100) is provided with displacement pieces for moving the support driven by the front and rear moving bidirectional screw rods (504).

3. The tapping tool for stents according to claim 2, characterized in that: The rotating joint includes circular holes (303) opened in the top of the two groups of arc clamping plates (301), the inner cavities of the two groups of circular holes (303) are rotatably connected with connecting columns (304), the upper and lower sides of both ends of the two groups of connecting columns (304) are fixedly connected with fixed pieces (305), both groups of fixed pieces (305) on the same side are fixedly connected to the surface of the corresponding side square plate (300).

4. The tapping tool for stents according to claim 3, characterized in that: The displacement piece includes a receiving groove (101) opened in the inside of the workbench (100), the inner cavity of the receiving groove (101) is rotatably connected with a first screw rod (500), the surface of the first screw rod (500) is threadedly connected with a first nut seat (502), the bottom of the workbench (100) and the position corresponding to the receiving groove (101) are provided with a communication hole (102) communicating with the receiving groove (101), the middle part of the bidirectional screw rod (504) is sleeved with a first bearing (505), the bottom of the first nut seat (502) is fixedly connected with a fixed strip (503), one end of the fixed strip (503) penetrates through the communication hole (102) and is fixedly connected to the top of the first bearing (505).

5. The tapping tool according to claim 4, wherein: The tapping assembly includes a supporting rod (200) fixedly installed on the rear side top of the workbench (100), the top end of the supporting rod (200) is rotatably sleeved with a connecting plate (201), the other end top of the connecting plate (201) is fixedly installed with an electric push rod (202), the telescopic end of the electric push rod (202) penetrates downward through the connecting plate (201) and is fixedly connected with a tapping machine (203).

6. The tapping tool according to claim 5, wherein: Both ends of the top of the arc-shaped clamping plate (301) are provided with arc-shaped holes (302), the inner cavity of each arc-shaped hole (302) is inserted with an insertion pin (407), the end of the insertion pin (407) extends upward and aligns with the opening of the corresponding arc-shaped hole (302), the end of each insertion pin (407) is provided with an anti-disengagement piece to prevent the insertion pin (407) from disengaging from the corresponding arc-shaped hole (302), the top of each insertion pin (407) is connected with a connecting strip (401) through a detachable connecting piece, the top of the other end of each connecting strip (401) is threadedly connected with a lead screw (402), and each lead screw (402) is threadedly penetrated through the end of the corresponding connecting strip (401).

7. The tapping tool according to claim 6, wherein: The anti-disengagement piece comprises a threaded column (406) fixedly connected to the top of each insertion pin (407), the surface of each threaded column (406) is threadedly connected with a nut (404), and the bottom of each nut (404) contacts the top of the corresponding arc-shaped clamping plate (301).

8. The tapping tool for stents according to claim 6, characterized in that: The detachable connecting piece comprises a threaded hole (405) formed in the top of the threaded column (406), the inside of each threaded hole (405) is threadedly connected with a threaded rod (403), each connecting strip (401) is rotatably sleeved on the neck of the corresponding threaded rod (403), and the top of each threaded rod (403) is fixedly connected with a hand wheel (400).

9. The tapping tool for stents according to claim 2, characterized in that: One side of one of the second bearing seats (507) is fixedly connected with a fixed ring (510), one end of the bidirectional lead screw (504) extends into the inner cavity of the fixed ring (510), the surface of the fixed ring (510) is threadedly connected with a fixed bolt (509), the end of the fixed bolt (509) is threadedly penetrated through the fixed ring (510) and abuts against the end surface of the bidirectional lead screw (504).

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