Shaft locking structure for conveniently replacing a grinding head of a straight grinder

Abstract

The utility model discloses a straight grinder convenient to replace the axle lock structure of grinding head, specifically relates to angle grinder technical field, including the connecting seat, the bottom of connecting seat is provided with straight grinder main part, and the output fixedly connected with the pivot of straight grinder main part, and the pivot outside fixedly connected with the swivel base, and the swivel base inboard inserts the locating post, and the locating post top fixedly connected with the base, and the base top fixedly connected with the grinding head, and the swivel base outside is provided with the positioning mechanism, and the positioning mechanism includes two supports, and the support outside is fixedly connected with the swivel base outside. The utility model utilizes the elastic clamping limit of two swivels, clamping bar and push rod and the clamping of block and sliding slot no.1 and sliding slot no.2, can simplify the connecting step of locating post, base and grinding head, improve the replacement efficiency of grinding head and straight grinder, utilize the rotation connection of clamping groove no.1, clamping ring no.1, clamping groove no.2 and clamping ring no.2 and prevent the connecting gap, and help multiple baffle to blow dust, effectively reduce the dust into the gap.

Description

Technical Field

[0001] This utility model relates to the field of angle grinder technology, and more specifically, to a shaft lock structure for a straight grinder that facilitates the replacement of the grinding head. Background Technology

[0002] Straight grinding mills are used in mining, metallurgy, building materials, chemical, and metallurgical industries for processing cavity molds and fixtures. Straight grinding mills can be equipped with various shank nylon wheels, impellers, grinding wheels, polishing wheels, etc., utilizing high-speed rotation to process cavity molds, fixtures, or complex parts that are difficult to process on grinding machines or specialized equipment, as well as various sculpted artworks.

[0003] In actual use, when replacing the grinding head, it is necessary to press the positioning pin and tighten the grinding head with a wrench to separate the grinding head from the mill head. When reinstalling, it is also necessary to tighten it again, which reduces the efficiency of grinding head replacement. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a shaft lock structure for easy replacement of the grinding head in a straight mill, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A shaft lock structure for a direct mill that facilitates grinding head replacement includes a connecting seat. The bottom of the connecting seat houses the main body of the direct mill. A rotating shaft is fixedly connected to the output end of the main body. A rotating base is fixedly connected to the outer side of the rotating shaft. A positioning pin is inserted into the inner side of the rotating base. A base is fixedly connected to the top of the positioning pin. A grinding head is fixedly connected to the top of the base. A positioning mechanism is provided on the outer side of the rotating base. The positioning mechanism includes two supports, the outer sides of which are fixedly connected to the outer sides of the rotating base. A rotating ring is rotatably connected to the outer side of the supports. A locking rod is fixedly connected to one side of the rotating ring. A push rod is fixedly connected to the bottom of the rotating ring. Two anti-slip strips are fixedly connected to the outer side of the push rod. A telescopic rod one is hinged to one side of the push rod. A telescopic rod two is slidably connected to the outer side of the telescopic rod one. One end of the telescopic rod two is hinged to the inner side of the rotating seat. Springs are sleeved on the outer sides of the telescopic rod one and the telescopic rod two. Multiple sliding grooves one and two are opened on the inner side of the rotating seat. Multiple locking blocks are fixedly connected to the bottom of the positioning post. The outer side of the locking blocks is slidably connected to the inner side of the sliding groove one and the sliding groove two. Two locking slots are opened on the outer side of the positioning post. A dustproof mechanism is provided on the outer side of the connecting seat and the rotating seat.

[0006] By adopting the above technical solution: using positioning pins and locking blocks to slide and lock the first and second slides, and combining two locking rods to elastically lock the positioning pins and the slots, the replacement speed of the positioning pins, base and grinding head with the main body of the straight mill is improved.

[0007] As a further description of the above technical solution: the dustproof mechanism includes a second retaining ring, the bottom of which is fixedly connected to the top of the connecting seat; a second retaining groove is provided at the bottom of the rotating seat, the inner side of which is slidably connected to the outer side of the second retaining ring; a protective cover is fixedly connected to the outer side of the main body of the direct mill; a first retaining groove is provided at the bottom of the base; multiple baffles are fixedly connected to the outer side of the base; a first retaining ring is fixedly connected to the top of the rotating seat, the outer side of which is slidably connected to the inner side of the first retaining groove.

[0008] By adopting the above technical solution: using slot one, retaining ring one, slot two and retaining ring two to block the connection gap between the connecting seat and the positioning post, and combining the base and multiple baffles to blow the grinding dust outward, reducing the amount of dust entering the connection gap.

[0009] The technical effects and advantages of this utility model are as follows: 1. By setting up a positioning mechanism, compared with the existing technology, the positioning column can be quickly positioned by using the elastic locking limit of two rotating rings, a locking rod and a push rod. Combined with the locking of the locking block with slide groove one and slide groove two, the connection steps of the positioning column, base and grinding head can be simplified, and the replacement efficiency of grinding head and straight grinding machine can be improved. 2. By setting up a dustproof mechanism, compared with the existing technology, the mutual rotation connection of the first slot, the first ring, the second slot and the second ring can block the connection gap, and combined with multiple baffles to blow away the dust from grinding, effectively reducing the amount of dust entering the gap. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the front structure of this utility model.

[0012] Figure 3 This is a partial schematic diagram of the connection between the connecting seat and the main body of the straight mill of this utility model.

[0013] Figure 4 This is a partial schematic diagram of the connection between the rotating base and the support of this utility model.

[0014] Figure 5 This is a partial schematic diagram of the connection between the positioning post and the base of this utility model.

[0015] Figure 6 For the present utility model Figure 4 Enlarged diagram of A in the middle.

[0016] The attached diagram is labeled as follows: 1. Connecting seat; 2. Main body of the direct mill; 3. Rotating shaft; 4. Rotary seat; 5. Support; 6. Rotary ring; 7. Locking rod; 8. Push rod; 9. Anti-slip strip; 10. Telescopic rod one; 11. Telescopic rod two; 12. Spring; 13. Slide groove one; 14. Slide groove two; 15. Positioning column; 16. Locking block; 17. Locking groove; 18. Grinding head; 19. Base; 20. Baffle; 21. Locking groove one; 22. Locking ring one; 23. Locking groove two; 24. Locking ring two; 25. Protective cover. Detailed Implementation

[0017] 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.

[0018] The embodiments disclosed in this application are as follows: Figures 1-6 The shaft lock structure of a direct mill for easy head replacement is shown, including a connecting seat 1, a direct mill body 2 at the bottom of the connecting seat 1, a rotating shaft 3 fixedly connected to the output end of the direct mill body 2, a rotating base 4 fixedly connected to the outside of the rotating shaft 3, a positioning pin 15 inserted into the inside of the rotating base 4, a base 19 fixedly connected to the top of the positioning pin 15, a grinding head 18 fixedly connected to the top of the base 19, and a positioning mechanism on the outside of the rotating base 4. The positioning mechanism includes two supports 5, the outside of the supports 5 being fixedly connected to the outside of the rotating base 4, a rotating ring 6 rotatably connected to the outside of the supports 5, a locking rod 7 fixedly connected to one side of the rotating ring 6, a push rod 8 fixedly connected to the bottom of the rotating ring 6, two anti-slip strips 9 fixedly connected to the outside of the push rod 8, a telescopic rod 10 hinged to one side of the push rod 8, a telescopic rod 2 slidably connected to the outside of the telescopic rod 10, and a telescopic rod 2 11... The end is hinged to the inner side of the rotating seat 4. Springs 12 are sleeved on the outer sides of the telescopic rod 10 and the telescopic rod 2 11. Multiple sliding grooves 13 and 2 14 are opened on the inner side of the rotating seat 4. Multiple locking blocks 16 are fixedly connected to the bottom of the positioning column 15. The outer side of the locking block 16 is slidably connected to the inner side of the sliding groove 13 and the sliding groove 2 14. Two locking slots 17 are opened on the outer side of the positioning column 15. Dustproof mechanisms are provided on the outer side of the connecting seat 1 and the rotating seat 4. The positioning column 15 and the locking block 16 can lock and limit the sliding groove 13 and the sliding groove 2 14. With the help of the two springs 12, the telescopic rod 2 11, the telescopic rod 10 push the push rod 8, the rotating ring 6 and the locking rod 7 to limit the locking slot 17 on the outer side of the positioning column 15. By pressing the two push rods 8, the locking rod 7 releases the limitation on the positioning column 15, making it easy to disassemble and replace the grinding head and the straight grinding machine.

[0019] Reference Figure 3 , Figure 4 and Figure 5As shown, the dustproof mechanism includes a second retaining ring 24, the bottom of which is fixedly connected to the top of the connecting seat 1. A second retaining groove 23 is provided at the bottom of the rotating seat 4, and the inner side of the second retaining groove 23 is slidably connected to the outer side of the second retaining ring 24. A protective cover 25 is fixedly connected to the outer side of the main body 2 of the straight mill. A first retaining groove 21 is provided at the bottom of the base 19, and multiple baffles 20 are fixedly connected to the outer side of the base 19. A first retaining ring 22 is fixedly connected to the top of the rotating seat 4, and the outer side of the first retaining ring 22 is slidably connected to the inner side of the first retaining groove 21. By utilizing the rotational connection between the second retaining ring 24 and the second retaining groove 23, and in conjunction with the rotational connection between the first retaining groove 21 and the first retaining ring 22, the connection gap between them is blocked. The base 19 and the multiple baffles 20 are used to blow away the dust generated during grinding, preventing dust from entering the connection between the grinding head and the straight mill.

[0020] The working principle of this utility model is as follows: When changing the grinding head 18 of the straight mill, first press the two push rods 8 and the anti-slip strip 9 to push the rotating ring 6 and the locking rod 7, so that they can be deflected through the support 5, causing the two locking rods 7 to be deflected out of the locking grooves 17 inside the rotating base 4 and the positioning column 15. Then, rotate the base 19 and the positioning column 15, so that the positioning column 15 and multiple locking blocks 16 can rotate inside the rotating base 4, causing the multiple locking blocks 16 at the bottom of the positioning column 15 to... The grinding head 18 is deflected within the inner groove 14 of the rotary table 4, causing multiple locking blocks 16 to move into the corresponding inner grooves 13 of the rotary table 4. Then, the positioning pin 15 and locking blocks 16 are removed from the rotary table 4. The positioning pin 15, base 19, and grinding head 18 can be removed from the inside of the rotary table 4. After replacing the grinding head 18 with another model, the base 19, positioning pin 15, and locking blocks 16 at the bottom of the grinding head 18 can be reinserted into the inner grooves 13 of the rotary table 4. In the second groove 14, the push rod 8 is released, causing the spring 12 to push the telescopic rod 11 and the telescopic rod 10 to extend, pushing the push rod 8 to push the rotating ring 6 and the locking rod 7 to engage with the two locking slots 17 on the inner side of the positioning post 15, so that the positioning post 15, the locking block 16 and the base 19 can maintain a stable connection. Then, the locking slot 21 at the bottom of the base 19 can be rotated to connect with the locking ring 22 at the top of the rotating seat 4. At the same time, the locking ring 24 at the top of the connecting seat 1 is used to rotate to connect with the locking slot 23 at the bottom of the rotating seat 4, reducing the gap between the connecting seat 1, the rotating seat 4 and the positioning post 15. At the same time, the main body 2 of the straight mill and the rotating shaft 3 drive the rotating seat 4 and the positioning post 15 to drive the positioning post 15 and the base 19 to drive multiple baffles 20 to blow out the dust generated by the grinding head 18, reducing the amount of dust entering the connection between the connecting seat 1, the main body 2 of the straight mill, the rotating seat 4 and the positioning post 15.

[0021] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shaft lock structure for a straight mill that facilitates the replacement of the grinding head, comprising a connecting seat (1), characterized in that: The bottom of the connecting seat (1) is provided with a straight mill body (2), the output end of the straight mill body (2) is fixedly connected with a rotating shaft (3), the outside of the rotating shaft (3) is fixedly connected with a rotating seat (4), the inside of the rotating seat (4) is inserted with a positioning column (15), the top of the positioning column (15) is fixedly connected with a base (19), the top of the base (19) is fixedly connected with a grinding head (18), and the outside of the rotating seat (4) is provided with a positioning mechanism. The positioning mechanism includes two supports (5), the outer side of the support (5) is fixedly connected to the outer side of the rotating seat (4), the outer side of the support (5) is rotatably connected to a rotating ring (6), a locking rod (7) is fixedly connected to one side of the rotating ring (6), a push rod (8) is fixedly connected to the bottom of the rotating ring (6), and two anti-slip strips (9) are fixedly connected to the outer side of the push rod (8). The connecting seat (1) and the rotating seat (4) are provided with a dustproof mechanism on their outer sides.

2. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 1, characterized in that: One side of the push rod (8) is hinged to a telescopic rod one (10), and the outside of the telescopic rod one (10) is slidably connected to a telescopic rod two (11).

3. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 2, characterized in that: One end of the telescopic rod 2 (11) is hinged to the inside of the rotating seat (4), and springs (12) are sleeved on the outside of the telescopic rod 1 (10) and the telescopic rod 2 (11).

4. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 1, characterized in that: The inner side of the rotating base (4) is provided with multiple sliding grooves 1 (13) and 2 (14). The bottom of the positioning post (15) is fixedly connected with multiple locking blocks (16). The outer side of the locking block (16) is slidably connected to the inner side of the sliding grooves 1 (13) and 2 (14). The outer side of the positioning post (15) is provided with two locking slots (17).

5. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 1, characterized in that: The dustproof mechanism includes a second retaining ring (24), the bottom of which is fixedly connected to the top of the connecting seat (1), and a second retaining groove (23) is provided at the bottom of the rotating seat (4). The inner side of the second retaining groove (23) is slidably connected to the outer side of the second retaining ring (24), and a protective cover (25) is fixedly connected to the outer side of the main body (2) of the straight mill.

6. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 1, characterized in that: The base (19) has a slot (21) at the bottom and multiple baffles (20) are fixedly connected to the outside of the base (19).

7. The shaft lock structure for convenient replacement of the grinding head in a straight mill according to claim 1, characterized in that: The top of the rotating base (4) is fixedly connected to a retaining ring (22), and the outer side of the retaining ring (22) is slidably connected to the inner side of the retaining groove (21).

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