Tapping clamp with self-alignment structure

Abstract

The utility model relates to the technical field of tapping clamps, in particular to a tapping clamp with a self-alignment structure, which comprises a frame body, a chassis is fixedly mounted on the outer surface of the frame body, a turntable is rotatably mounted on the outer surface of the chassis, and a rotating block is rotatably mounted on the outer surface of the turntable. According to the tapping clamp with the self-alignment structure, when the tapping clamp is used, a product to be tapped only needs to be placed above a rotating disc, the product is placed on a blocky protrusion of a clamping block, then the rotating disc can be rotated, and the rotating disc can drive a rotating block to move together; the limiting guide rod fixedly installed at one end of the rotating block can move along the arc-shaped groove in the outer surface of the base plate, the rotating block can drive the clamping block to move towards the circle center of the base plate, a product can be clamped by the clamping block to form three-point clamping, and the product cannot move when being clamped for tapping machining; and the scrap of the screw tap and the product caused by movement during tapping is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tapping clamp technology, specifically a tapping clamp with a self-aligning structure. Background Technology

[0002] With the development of industry, many device parts are manufactured. When assembling these parts, screws are needed for fixing. Screw fixing requires the use of threads, and thread processing requires the tapping process. Fixtures or tooling jigs are needed to limit the product and keep it stable when tapped. However, existing fixtures generally use clamping bodies on both sides to clamp and fix the product. Even after clamping and limiting the product, it may still move in the vertical direction due to the force generated by the tap during tapping, which can cause the tap to break inside the product, resulting in damage to the tap and scrapping of the product. Utility Model Content

[0003] The purpose of this invention is to provide a tapping clamp with a self-aligning structure to solve the problem mentioned in the background art that unstable product clamping may lead to product movement.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tapping fixture with a self-aligning structure, comprising a frame, a base plate fixedly mounted on the outer surface of the frame, the base plate being located at the center of the frame, a turntable rotatably mounted on the outer surface of the base plate, and block-shaped strip protrusions fixedly provided on both sides of the outer surface of the turntable, the block-shaped strip protrusions on both sides of the turntable being symmetrically designed, a rotating block rotatably mounted on the outer surface of the turntable, the outer surface of the rotating block being in contact with the outer surface of the turntable, and the turntable and the base plate being concentrically designed, a rotating pushing mechanism being provided between the base plate and the turntable, the workpiece placed on the outer surface of the turntable being clamped and fixed by the rotating pushing mechanism.

[0005] Preferably, the rotating and pushing mechanism includes: a limiting guide rod, which is fixedly installed on the outer surface of one end of the rotating block, and a locking block is inserted into the outer surface of the rotating block. The outer surface of the chassis is uniformly provided with arc-shaped grooves, and the arc-shaped grooves on the outer surface of the chassis engage with the limiting guide rod, and the outer surface of the limiting guide rod is in contact with the outer surface of the chassis.

[0006] By adopting the above technical solution, the rotation of the turntable can drive the rotating block to move together, and the limiting guide rod can move along the arc-shaped groove on the outer surface of the chassis. This allows the rotating block to rotate and move towards the center of the chassis, driving the clamping block to move together and fix the product to be tapped. After the part is placed above the turntable, it can automatically find the center and be firmly clamped and fixed by the movement of the rotating block. This reduces the risk of the product moving and falling off during tapping, and reduces the probability of tap damage and product scrap.

[0007] Preferably, the end of the card block located outside the rotating block is provided with a strip-shaped protrusion. The strip-shaped protrusion on the outer surface of the card block can fit with the outer surface of the processed part, and the outer surface of the card block does not fit with the outer surface of the turntable. The outer surface of the turntable is provided with a guide drain hole, and the guide drain hole and the turntable are concentrically designed. The outer surfaces of the chassis and the frame are provided with through holes, and the through holes and guide drain holes on the outer surfaces of the frame and the chassis are concentrically designed.

[0008] Using the above technical solution, the lubricating oil used during tapping can be collected through the guide drain hole, and the inserted product can be supported by the strip-shaped protrusions on the outer surface of the clamp block, so that the product will not fall into the guide drain hole. At the same time, clamp blocks of different thicknesses can be replaced after changing products of different sizes.

[0009] Preferably, a rotating engagement mechanism is provided between the chassis and the turntable. After the rotating block is rotated by the rotating engagement mechanism, the locking block can fix the product and keep it in place.

[0010] By adopting the above technical solution, the angle of the rotating block can be maintained after the product is clamped, so that the product can be kept in a clamped and fixed state, while reducing the time spent rotating the screw when clamping the product.

[0011] Preferably, the rotating engagement mechanism includes: a ratchet, the ratchet is fixedly mounted on the outer surface of the chassis, and the chassis and the ratchet are concentrically designed; a telescopic handle is slidably mounted on the outer surface of the turntable, and the telescopic handle is in contact with the block-shaped strip protrusions on both sides of the outer surface of the turntable; a spring is provided between the turntable and the telescopic handle; a ratchet tooth is fixedly mounted on the outer surface of one end of the telescopic handle, and the ratchet tooth engages with the ratchet.

[0012] By adopting the above technical solution, during the rotation of the turntable, the telescopic handle will move along with the turntable, and the ratchet will always be engaged with the ratchet wheel through the push of the spring. This ensures that the ratchet wheel and ratchet wheel remain engaged after the turntable rotates, guaranteeing that the rotating block and the clamping block hold the product. At the same time, after processing is completed, the telescopic handle can be pulled with both hands to disengage the ratchet wheel and ratchet wheel, preventing the telescopic handle from moving due to accidental contact or other reasons, and reducing the risk of the product falling off during tapping.

[0013] Preferably, a rotating pin is rotatably mounted on one end side surface of the frame, and a block-shaped protrusion is provided on the outer surface of the frame, which fits against the outer surface of the rotating pin. A sliding filter mechanism is provided inside the frame, which facilitates the filtering of metal debris washed off during tapping, making it convenient to collect and clean the metal debris.

[0014] By adopting the above technical solution, the block-shaped protrusions on the outer surface of the frame and the rotating pin cooperate to limit the first box and the second box, and facilitate the collection of cooling lubricant and metal chips that fall during tapping. The cooling lubricant can also pass through the filter screen, making it easy to remove the first box and clean the metal chips.

[0015] Preferably, the sliding filter mechanism includes: a first housing, which is slidably installed inside the frame, and a second housing is slidably installed inside the frame. The outer surfaces of the second housing and the first housing are both in contact with the outer surface of the rotating pin. A filter screen is fixedly installed inside the first housing. The interior of the second housing is designed to be inclined, and a pump body is fixedly installed at the lower end of the second housing. One end of the pump body penetrates the outer surface of the second housing, and one end of the pump body is connected to a rinsing nozzle.

[0016] Using the above technical solution, the filtered cooling lubricant will enter the interior of the second chamber through the filter screen, and the cooling lubricant will be concentrated by the inclined surface of the second chamber, so that the subsequent pump can draw in the cooling lubricant and spray it out from the flushing nozzle of the tapping equipment. This allows the cooling lubricant to be recycled and prevents metal debris from entering the pump and pipes, reducing the chance of pump damage and pipe blockage.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the tapping clamp with a self-aligning structure is:

[0018] 1. When using this device, simply place the product to be tapped on top of the turntable, positioning it on the protruding block of the clamping block. Then, rotate the turntable to move the rotating block along with it. This allows the guide rod, which is fixed to one end of the rotating block, to move along the arc-shaped groove on the outer surface of the chassis. The rotating block then moves the clamping block towards the center of the chassis, clamping the product at three points. This clamping prevents the product from moving during tapping, reducing the risk of tap and product scrap due to movement during tapping.

[0019] 2. As the turntable rotates and the rotating block and clamping block move to clamp the product, the telescopic handle is pushed by the spring, so that the ratchet can always be pressed against the ratchet wheel. After the turntable is released, the ratchet and ratchet wheel can engage and fix the product, and the clamping block can remain fixed after clamping the product. This allows products within a certain size range to be clamped. By changing the clamping block of different sizes and lengths, even smaller products can be clamped. It also prevents metal shavings generated during processing from falling into the gaps on the turntable, reducing the turntable jamming caused by metal shavings. It is convenient to clamp products of different sizes and ranges.

[0020] 3. During the tapping process, the generated metal shavings and coolant are guided and moved through the guide drain hole, allowing the falling coolant and metal shavings to fall into the first chamber. The metal shavings are then filtered through a filter screen, allowing them to be collected and concentrated. Simultaneously, the filtered coolant enters the second chamber, where its inclined design concentrates it, enabling the pump to pump out the filtered coolant for reuse. This prevents metal shavings from entering the pump and pipes, reducing the chance of pump damage and pipe blockage, and facilitating the collection and cleaning of metal shavings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the frame and chassis of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the turntable and rotating block of this utility model;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the second housing and pump body of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the first housing and filter screen of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional view of the chassis and ratchet of this utility model;

[0026] Figure 6 This is a cross-sectional exploded three-dimensional structural diagram of the chassis and guide water holes of this utility model.

[0027] In the diagram: 1. Frame; 2. Chassis; 3. Turntable; 4. Telescopic handle; 5. Spring; 6. Ratchet; 7. Ratchet; 8. Rotating block; 9. Limiting guide rod; 10. Locking block; 11. Guide drain hole; 12. First housing; 13. Filter screen; 14. Rotating pin; 15. Second housing; 16. Pump body. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-6 This utility model provides a technical solution: a tapping clamp with a self-aligning structure, including a frame 1, a base 2 fixedly installed on the outer surface of the frame 1, and the base 2 being located at the center of the frame 1. A turntable 3 is rotatably installed on the outer surface of the base 2, and block-shaped strip protrusions are fixedly provided on both sides of the outer surface of the turntable 3. The block-shaped strip protrusions on both sides of the turntable 3 are symmetrically designed. A rotating block 8 is rotatably installed on the outer surface of the turntable 3, and the outer surface of the rotating block 8 is in contact with the outer surface of the turntable 3. The turntable 3 and the base 2 are concentrically designed. A rotating pushing mechanism is provided between the base 2 and the turntable 3, and the workpiece placed on the outer surface of the turntable 3 can be clamped and fixed by the rotating pushing mechanism.

[0030] The block-shaped protrusions on both sides of the outer surface of the turntable 3 make it easy to grip and rotate the turntable 3, making the product more stable when clamped.

[0031] The rotating and pushing mechanism includes: a limiting guide rod 9, which is fixedly installed on the outer surface of one end of the rotating block 8, and a locking block 10 is inserted into the outer surface of the rotating block 8. The outer surface of the chassis 2 is uniformly provided with arc-shaped grooves, and the arc-shaped grooves on the outer surface of the chassis 2 are engaged with the limiting guide rod 9, and the outer surface of the limiting guide rod 9 is in contact with the outer surface of the chassis 2.

[0032] After placing the product on top of the clamping block 10, the turntable 3 can be rotated, causing the rotating block 8 to move along with it. With the help of the arc-shaped protrusion on the outer surface of the limiting guide rod 9, the rotating block 8 and the clamping block 10 can move and move towards the center of the base 2, so that the clamping block 10 can form a three-point clamp with the product, making the product more securely clamped and reducing the damage to the tap and the scrapping of the product caused by movement during the tapping process.

[0033] The locking block 10 has a strip-shaped protrusion at one end outside the rotating block 8. The strip-shaped protrusion on the outer surface of the locking block 10 can fit with the outer surface of the processed part, and the outer surface of the locking block 10 does not fit with the outer surface of the turntable 3. The outer surface of the turntable 3 has a guide drain hole 11, and the guide drain hole 11 and the turntable 3 are concentrically designed. The outer surfaces of the chassis 2 and the frame 1 have through holes, and the through holes on the outer surfaces of the frame 1 and the chassis 2 are concentrically designed with the guide drain hole 11.

[0034] The strip-shaped protrusions on the outer surface of the clamping block 10 facilitate the support of the placed product, preventing it from falling. At the same time, clamping blocks 10 of different lengths can be replaced according to the size of the product to clamp products within a different size range. Metal shavings and lubricating coolant generated during machining and tapping can be discharged through the guide drain hole 11, preventing metal shavings and lubricating coolant from flowing into the gaps of rotating parts, reducing the chance of the fixture being affected by metal shavings, and allowing for quick clamping of products of different sizes without having to rotate multiple times.

[0035] A rotating engagement mechanism is provided between the chassis 2 and the turntable 3. After the rotating block 8 is rotated by the rotating engagement mechanism, the locking block 10 can fix the product and keep it in the original position.

[0036] When the rotating block 8 and the clamping block 10 clamp and secure the product, the turntable 3 can be kept in place without rotating, so that the product can be clamped and fixed in place without loosening.

[0037] The rotating engagement mechanism includes: a ratchet 7, which is fixedly installed on the outer surface of the chassis 2, and the chassis 2 and the ratchet 7 are concentrically designed; a telescopic handle 4 is slidably installed on the outer surface of the turntable 3, and the telescopic handle 4 is in contact with the block-shaped strip protrusions on both sides of the outer surface of the turntable 3; a spring 5 is provided between the turntable 3 and the telescopic handle 4; a ratchet tooth 6 is fixedly installed on the outer surface of one end of the telescopic handle 4, and the ratchet tooth 6 engages with the ratchet 7.

[0038] As the turntable 3 rotates, the spring 5 pushes the telescopic handle 4, ensuring that the ratchet 6 remains engaged with the ratchet 7. After the locking block 10 clamps the product and releases the turntable 3, the ratchet 6 and ratchet 7 engage, fixing the turntable 3 in place. After processing is complete, the ratchet 6 can only disengage from the ratchet 7 by pulling the telescopic handles 4 on both sides, allowing the turntable 3 to rotate and the locking block 10 to disengage from the product. This ensures that the telescopic handles 4 on both sides of the turntable 3 can only disengage the ratchet 6 and ratchet 7 by pulling simultaneously, reducing the risk of the turntable 3 loosening due to accidental operation.

[0039] A rotating pin 14 is rotatably mounted on one side surface of the frame 1. A block-shaped protrusion is provided on the outer surface of the frame 1, and the block-shaped protrusion on the outer surface of the frame 1 fits into the outer surface of the rotating pin 14. A sliding filter mechanism is provided inside the frame 1. The sliding filter mechanism facilitates the filtering of metal debris washed down during tapping, making it convenient to collect and clean the metal debris.

[0040] The block-shaped protrusions on the outer surface of the frame 1 can limit the rotation of the rotating pin 14, so that the rotating pin 14 can limit the first box 12 and the second box 15 inside the frame 1, so that the second box 15 and the first box 12 will not fall out of the frame 1 during use. This allows the metal shavings generated during tapping and the flowing coolant and lubricant to flow into the interior of the first box 12, and the metal shavings can be separated by the filter screen 13. This allows the metal shavings in the coolant and lubricant to be collected, and it is convenient to pull out the first box 12 to clean the collected metal shavings inside.

[0041] The sliding filter mechanism includes: a first housing 12, which is slidably installed inside the frame 1, and a second housing 15 is slidably installed inside the frame 1. The outer surfaces of the second housing 15 and the first housing 12 are both in contact with the outer surface of the rotating pin 14. A filter screen 13 is fixedly installed inside the first housing 12. The interior of the second housing 15 is designed to be inclined, and a pump body 16 is fixedly installed at the lower end of the second housing 15. One end of the pump body 16 penetrates the outer surface of the second housing 15, and one end of the pump body 16 is connected to the flushing nozzle.

[0042] As the filtered lubricating coolant from the filter screen 13 enters the interior of the second housing 15, it is concentrated at a lower level due to the inclined design of the second housing 15. Then, the pump body 16 pumps out the filtered lubricating coolant and sends it into the flushing nozzle to spray it again onto the tapped product, allowing the lubricating coolant to be recycled. At the same time, the filtration by the filter screen 13 reduces the amount of metal debris entering the pump body 16 and the inside of the pipes, reducing the chance of damage to the pump body 16 and pipe blockage, and reducing the cost of using the lubricating coolant.

[0043] 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 fixture provided with a self-alignment structure, comprising a frame body (1), the outer surface of the frame body (1) is fixedly provided with a base plate (2), and the base plate (2) is located at the center of the frame body (1), the outer surface of the base plate (2) is rotatably provided with a rotating disc (3), and the outer surfaces of the two sides of the rotating disc (3) are fixedly provided with block-shaped strip-shaped protrusions, and the block-shaped strip-shaped protrusions on the two sides of the rotating disc (3) are symmetrically designed, characterized in that: The outer surface of the rotating disc (3) is rotatably provided with a rotating block (8), the outer surface of the rotating block (8) is attached to the outer surface of the rotating disc (3), and the rotating disc (3) and the bottom disc (2) are concentrically designed, a rotating pushing mechanism is arranged between the bottom disc (2) and the rotating disc (3), and the workpiece placed on the outer surface of the rotating disc (3) can be clamped and fixed through the rotating pushing mechanism. ​ 2. A tapping jig provided with a self-aligning structure according to claim 1, characterized in that: The rotating pushing mechanism comprises a limiting guide rod (9) fixedly installed on one end of the outer surface of the rotating block (8), the outer surface of the rotating block (8) is clamped and inserted with a clamping block (10), the outer surface of the bottom disc (2) is uniformly provided with an arc-shaped groove, the arc-shaped groove of the outer surface of the bottom disc (2) is clamped with the limiting guide rod (9), and the outer surface of the limiting guide rod (9) is attached to the outer surface of the bottom disc (2).

3. A tapping jig provided with a self-aligning structure according to claim 2, characterized in that: The clamping block (10) is provided with a strip-shaped protrusion at one end outside the rotating block (8), the strip-shaped protrusion of the outer surface of the clamping block (10) can be attached to the outer surface of the machining part, the outer surface of the clamping block (10) is not attached to the outer surface of the rotating disc (3), the outer surface of the rotating disc (3) is provided with a guide water outlet hole (11), the guide water outlet hole (11) is concentrically designed with the rotating disc (3), the outer surfaces of the bottom disc (2) and the frame body (1) are provided with through holes, and the through holes provided on the outer surfaces of the frame body (1) and the bottom disc (2) are concentrically designed with the guide water outlet hole (11).

4. A tapping jig provided with a self-aligning structure according to claim 1, characterized in that: A rotating meshing mechanism is arranged between the bottom disc (2) and the rotating disc (3), after the rotating block (8) is rotated through the rotating meshing mechanism, the clamping block (10) can fix and keep the product in place.

5. A tapping jig provided with a self-aligning structure according to claim 4, characterized in that: The rotating meshing mechanism comprises a ratchet wheel (7) fixedly installed on the outer surface of the bottom disc (2), the bottom disc (2) and the ratchet wheel (7) are concentrically designed, the outer surface of the rotating disc (3) is slidably provided with a telescopic handle (4), the telescopic handle (4) is attached to the block-shaped strip-shaped protrusions on the outer surfaces of the two sides of the rotating disc (3), a spring (5) is arranged between the rotating disc (3) and the telescopic handle (4), one end of the outer surface of the telescopic handle (4) is fixedly provided with a ratchet tooth (6), and the ratchet tooth (6) is clamped with the ratchet wheel (7).

6. A tapping jig provided with a self-aligning structure according to claim 1, characterized in that: One end of the outer surface of the frame body (1) is rotatably provided with a rotating pin (14), the outer surface of the frame body (1) is provided with a block-shaped protrusion, the block-shaped protrusion of the outer surface of the frame body (1) is attached to the outer surface of the rotating pin (14), the inside of the frame body (1) is provided with a sliding filtering mechanism, the metal scraps flushed down during tapping can be filtered through the sliding filtering mechanism, the metal scraps can be collected and cleaned conveniently.

7. A tapping jig provided with a self-aligning structure according to claim 6, characterized in that: The sliding filtering mechanism comprises a first box (12) which is slidingly installed in the interior of a frame (1), a second box (15) is slidingly installed in the interior of the frame (1), the outer surfaces of the first box (12) and the second box (15) are in close contact with the outer surface of a rotating pin (14), a filtering screen (13) is fixedly installed in the interior of the first box (12), the interior of the second box (15) is designed to be inclined, a pump body (16) is fixedly installed at the lower end of the second box (15), the outer surface of the second box (15) is penetrated by one end of the pump body (16), and one end of the pump body (16) is connected with a flushing nozzle.

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