A drilling tool

Abstract

The utility model relates to the field of drilling processing discloses a kind of drilling tool. It includes base, rotating table, locking assembly and unlocking push plate, driving shaft is rotatably equipped on base, driving gear is equipped on driving shaft and rotates synchronously, rotating table is rotatably connected with base, rotating table is equipped with meshing groove and driving gear is mutually engaged, when driving gear drives rotating table to rotate, to be suitable for the inclination angle of product is adjusted;Locking assembly is provided with two groups, two groups of locking assembly are suitable for being inserted in the corresponding tooth slot of driving gear, and the forward and reverse rotation of driving gear is locked and positioned;Unlocking push plate is slidably connected with base, unlocking push plate is located between two groups of locking assembly, suitable for driving two groups of locking assembly to be released from locking driving gear in the tooth slot of driving gear. The utility model double locking and positioning structure is not easy to drive product to slightly rotate in the process of drilling, improves drilling quality;When unlocking, it is easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and more specifically, to a drilling tool. Background Technology

[0002] Some plates or blocks in existing excavators require drilling, and due to assembly requirements, some holes need to be angled. When machining angled holes, the product to be drilled is placed on a drilling fixture and held in place by a quick-clamp (in existing products, this is achieved through a linkage structure) or a pneumatic assembly. To improve the ease of adjustment and versatility of the drilling fixture during angled hole machining, the fixture includes a base, an angle adjustment seat, and gears. The angle adjustment seat is a semi-cylinder. The quick clamp and the product are both placed on the angle adjustment seat. The top of the base has a semi-circular groove that fits the angle adjustment seat. The angle adjustment seat is located in the semi-circular groove and can rotate relative to the base to adjust the tilt angle of the product. The gear is rotatably connected to the base. The arc surface of the angle adjustment seat has convex teeth that mesh with the gear. Driving the gear to rotate can drive the angle adjustment seat to rotate and adjust the angle. Then, the locking of the angle after adjustment is achieved through the meshing relationship between the convex teeth and the gear, thereby realizing the machining of the tilted hole.

[0003] However, once the tilt angle of the angle adjustment seat is adjusted, the stability of locking the angle adjustment seat by relying solely on the meshing relationship of gears and convex teeth is low. During the drilling process, the angle adjustment seat is prone to slight shaking, which affects the drilling quality. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a drilling fixture, comprising a base, a rotating table, locking components, and an unlocking push plate. A drive shaft is rotatably mounted on the base, and a synchronously rotating drive gear is mounted on the drive shaft. The rotating table is rotatably connected to the base, and its outer wall has an arc surface with a meshing groove that meshes with the drive gear. When the drive gear rotates the rotating table, it is adapted to adjust the tilt angle of the product. Two sets of locking components are provided, each movably mounted on the base to be inserted into corresponding slots on the drive gear, locking and limiting the forward and reverse rotation of the drive gear. The unlocking push plate is slidably connected to the base and located between the two sets of locking components, adapted to drive the two sets of locking components to disengage from the slots of the drive gear, releasing the lock on the drive gear.

[0005] Optionally, a plurality of clamps are spaced apart on the rotary table, the clamps being adapted to lock the product onto the rotary table.

[0006] Optionally, one end of the drive shaft is provided with a drive handwheel, which rotates synchronously with the drive shaft.

[0007] Optionally, the rotary table is a semi-cylinder, the base includes a support seat and an arc plate, the arc plate is fixedly connected to the top of the support seat, the rotary table is rotatably connected to the arc plate, and the drive gear is connected to the support seat.

[0008] Optionally, the arc plate is provided with a T-shaped block, and the rotating platform is provided with an annular T-shaped groove adapted to the T-shaped block, and the T-shaped block is inserted into the T-shaped groove.

[0009] Optionally, the top of the support base is provided with a mounting groove, the drive gear and the locking assembly are both located in the mounting groove, and the arc plate is provided with a notch for the drive gear to be inserted and engage with the meshing groove.

[0010] Optionally, the support base includes a first support base and a second support base. The first support base is fixedly connected to the arc plate, and the second support base is bolted to the first support base. The mounting groove is provided in the first support base, and the side of the mounting groove near the second support base passes through the first support base.

[0011] Optionally, the locking assembly includes a locking plate and a locking spring. One side of the locking plate is rotatably connected to the groove wall of the mounting groove, and the other side is adapted to be inserted into any tooth groove of the drive gear. The locking spring drives the locking plate to always tend to be inserted into the tooth groove.

[0012] Optionally, the outer wall of the support base is provided with a sliding groove communicating with the mounting groove. The unlocking push plate is slidably inserted into the sliding groove. The unlocking push plate is located between the two locking plates and contacts the side of the two locking plates that are close to each other. One side of the unlocking push plate protrudes from the sliding groove. The unlocking push plate is a conical plate. When the unlocking push plate is driven to move into the mounting groove, the unlocking push plate is adapted to drive the two locking plates to disengage in the toothed groove.

[0013] Optionally, the unlocking push plate is provided with a reset spring at one end of the mounting groove. When the pushing force applied to the unlocking push plate is removed, the reset spring drives the unlocking push plate to reset.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] 1. After the tilt angle of the rotary table is adjusted, the two sets of locking components will further lock the forward and reverse rotation of the drive gear. Together with the meshing relationship between the drive gear and the meshing groove, a double locking and limiting structure is formed. During the drilling process, the rotary table is less likely to cause the product to rotate slightly, thus improving the drilling quality.

[0016] 2. The unlocking push plate is conical. As the unlocking push plate is pushed into the mounting groove, the two locking plates will move away from each other and disengage from the tooth groove to achieve unlocking. Only one unlocking push plate needs to be pushed to unlock, making the operation simple.

[0017] 3. The support base is divided into a first support base and a second support base. During maintenance, the second support base can be removed for maintenance, which improves the convenience of assembling the drive gear and locking components, as well as the convenience of maintenance. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the drilling tool in an embodiment of the present utility model;

[0019] Figure 2 This is an exploded view of the drilling fixture in the embodiment of this utility model;

[0020] Figure 3 This is an exploded view of the arc plate and the rotary table in the embodiment of this utility model;

[0021] Figure 4 This is an exploded view of the first support base and the second support base in the embodiment of this utility model;

[0022] Figure 5 This is a structural diagram of the drive gear and locking assembly in an embodiment of the present invention;

[0023] Figure 6 This is a structural diagram of the locking component and the unlocking push plate in the embodiment of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Base; 11. Drive shaft; 12. Drive gear; 13. Arc plate; 131. T-block; 14. Base plate; 15. First support seat; 16. Second support seat; 17. Mounting groove; 18. Sliding groove; 2. Rotary table; 21. Engaging groove; 22. T-slot; 3. Locking assembly; 31. Locking plate; 32. Locking spring; 33. Rotating shaft; 34. Abutment plate; 4. Unlocking push plate; 41. Return spring. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-6 This application will be described in further detail.

[0026] This utility model embodiment provides a drilling fixture, as shown in the following figure. Figure 1 and Figure 2 The drilling fixture includes a base 1, a rotary table 2, a locking assembly 3, and an unlocking push plate 4. The base 1 is bolted to the drilling equipment. A drive shaft 11 is rotatably mounted on the base 1, and a synchronously rotating drive gear 12 is mounted on the drive shaft 11. The rotary table 2 is a semi-cylinder, possessing both an arc surface and a flat surface. The arc surface of the rotary table 2 is rotatably connected to the base 1. The arc surface of the rotary table 2 has a meshing groove 21 that engages with the drive gear 12. Multiple clamps are spaced apart on the flat surface of the rotary table 2, suitable for locking products onto the rotary table 2. When the drive gear 12 rotates the rotary table 2, the tilt angle of the product can be adjusted. Two sets of locking components 3 are provided, both movably mounted on the base 1 to be inserted into the corresponding tooth grooves on the drive gear 12. These components lock and limit the forward and reverse rotation of the drive gear 12. Combined with the meshing relationship between the drive gear 12 and the meshing groove 21, a double locking and limiting structure is formed, preventing the rotary table 2 from causing slight rotation of the product during drilling. The unlocking push plate 4 is slidably connected to the base 1 and is located between the two sets of locking components 3. It is suitable for driving the two sets of locking components 3 to disengage from the tooth grooves of the drive gear 12, releasing the lock on the drive gear 12.

[0027] To save costs, this embodiment uses a quick-release clamp (existing technology, which uses a linkage assembly to clamp and limit the product). In another embodiment, a pneumatic clamp can be used (a cylinder drives the clamp head to clamp the product onto the rotary table 2).

[0028] Reference Figure 1 and Figure 2 The base 1 includes a support seat, an arc plate 13, and a base plate 14. The base plate 14 is fixedly connected to the drilling equipment by bolts. The support seat is installed on the top of the base plate 14. The drive gear 12 and the locking assembly 3 are both connected to the support seat. The arc plate 13 is fixedly installed on the top of the support seat for adaptation to the rotary table 2. The rotary table 2 is rotatably connected to the arc plate 13.

[0029] Reference Figure 2 and Figure 3The arc-shaped groove of the arc plate 13 faces upward, and the arc-shaped groove of the arc plate 13 fits against the arc surface of the rotary table 2, so that the rotary table 2 has a matching arc surface when rotating, and can rotate smoothly. Multiple T-shaped blocks 131 are installed at intervals in the arc-shaped groove of the arc plate 13. Each T-shaped block 131 is welded with a bolt rod, which passes through the arc plate 13, is located outside the arc plate 13, and is threadedly connected to a nut, thereby fixing the T-shaped block 131 to the arc plate 13. At least two annular T-shaped grooves 22 are spaced apart along the axial direction of the rotary table 2 on the arc surface of the rotary table 2. The T-shaped grooves 22 extend through the rotary table 2 along the extension direction, and the shape of the T-shaped grooves 22 matches the shape of the T-shaped blocks 131. The T-block 131 is inserted into the T-slot 22, which prevents the rotary table 2 from moving relative to the arc plate 13 in its own axial direction; it also prevents it from detaching from the arc groove in its own radial direction. Instead, it rotates stably along the extension direction of the T-slot 22 under the drive of the drive gear 12, which also makes the product fixed on the rotary table 2 more stable and improves the drilling quality.

[0030] One end of the arc plate 13 is provided with a reference line, and one end of the rotary table 2 is provided with a scale line. When the rotary table 2 is driven to rotate, the operator can intuitively understand the rotation angle of the rotary table 2 based on the combination of the reference line and the scale line, thereby improving the drilling accuracy.

[0031] Reference Figure 2 and Figure 4 The support base includes a first support base 15 and a second support base 16, which are arranged axially along the drive shaft 11. The top and bottom of the first support base 15 are welded and fixed to the arc plate 13 and the base plate 14, respectively. A mounting groove 17 is provided on the top of the first support base 15, and the side of the mounting groove 17 near the second support base 16 extends through the first support base 15. The drive gear 12 is located within the mounting groove 17. A notch communicating with the mounting groove 17 is provided in the arc-shaped groove of the arc plate 13, and one side of the drive gear 12 is inserted into the notch and meshes with the engagement groove 21. Two sets of locking components 3 are located within the mounting groove 17. The second support base 16 is bolted to the first support base 15. The second support base 16 only provides support for the arc plate 13 and is not connected to the arc plate 13 or the base plate 14 by fasteners. During maintenance, the second support base 16 can be disassembled for repair, improving both the ease of assembly and maintenance of the drive gear 12 and the locking components 3.

[0032] A first pivot hole is formed on the side of the first support base 15 away from the second support base 16, and the first pivot hole communicates with the mounting groove 17. A second pivot hole is formed on the side of the second support base 16 away from the first support base 15, and the second pivot hole passes through the second support base 16 and communicates with the mounting groove 17. Bearings are tightly fitted in both the first pivot hole and the second pivot hole. The drive shaft 11 is inserted into the first pivot hole and the second pivot hole, and is inserted into the two bearings and tightly fitted with the bearings. The end of the drive shaft 11 away from the first support base 15 protrudes from the second pivot hole and extends out of the second support base 16. A polygonal column is integrally formed on the end of the drive shaft 11 that extends out of the second support base 16. A drive handwheel is fitted on the polygonal column. The drive handwheel rotates synchronously with the drive shaft 11, making it more convenient to drive the drive shaft 11 to rotate.

[0033] Combination Figure 2 Reference Figure 4 and Figure 5 The two sets of locking components 3 are symmetrically arranged and have the same structure. The following description uses one set of locking components 3 as an example. The locking component 3 includes a locking plate 31 and a locking spring 32. A rotating shaft 33 is welded to the groove wall of the mounting groove 17 away from the second support seat 16. One side of the locking plate 31 is rotatably sleeved on the rotating shaft 33; the other side of the locking plate 31 is adapted to be inserted into any tooth groove of the drive gear 12 to limit the rotation of the drive gear 12. The locking spring 32 drives the locking plate 31 to always tend to be inserted into the tooth groove.

[0034] Specifically, an annular baffle is sleeved and welded onto the rotating shaft 33, and the locking plate 31 is located on the side of the annular baffle close to the second support seat 16 and abuts against the annular baffle; a snap ring groove is provided on the rotating shaft 33, and the snap ring groove is located on the side of the locking plate 31 close to the second support seat 16. A snap ring (not shown in the figure) is provided in the snap ring groove, and the locking plate 31 abuts against the snap ring, thereby preventing the locking plate 31 from moving axially along the rotating shaft 33.

[0035] An abutment plate 34 is also welded to the groove wall of the mounting groove 17 where the rotating shaft 33 is welded. The abutment plate 34 is located at the end of the locking spring 32 away from the locking plate 31. Both the abutment plate 34 and the locking plate 31 are provided with spring posts on the side near the spring. The two ends of the locking spring 32 are respectively inserted into the two spring posts, and the two ends of the locking spring 32 abut against the abutment plate 34 and the locking plate 31 respectively, thereby applying an elastic force to the locking plate 31.

[0036] Combination Figure 2 Reference Figures 4 to 6The second support 16 has a sliding groove 18 on its outer wall, which is away from the first support 15 and communicates with the mounting groove 17. The unlocking push plate 4 is slidably inserted into the sliding groove 18. The unlocking push plate 4 is located between the two locking plates 31 and contacts the side of the two locking plates 31 that is close to each other. One section of the unlocking push plate 4 is a tapered plate. Assuming that the sliding direction of the unlocking push plate 4 is the length direction of the unlocking push plate 4, the width of the sliding groove 18 is adapted to the position where the width of the unlocking push plate 4 is the largest, so that the unlocking push plate 4 can slide stably. Since one section of the unlocking push plate 4 is a tapered plate, when the unlocking push plate 4 is driven to move into the mounting groove 17, the unlocking push plate 4 is suitable for driving the two locking plates 31 to disengage in the tooth groove under the action of the tapered shape, thereby unlocking and allowing the drive gear 12 to rotate freely.

[0037] The side of the unlocking push plate 4 furthest from the first support 15 protrudes from the sliding groove 18 to facilitate pushing by the operator. A connecting plate is also bolted to the end of the unlocking push plate 4 protruding from the sliding groove 18, increasing the area of ​​the unlocking push plate 4 and making it easier to identify and push.

[0038] Combination Figure 2 Reference Figures 4 to 6 Spring pins are welded to one end of the unlocking push plate 4 in the mounting groove 17 and to the groove wall of the rotating shaft 33 welded to the mounting groove 17. A return spring 41 is provided between the unlocking push plate 4 and the groove wall of the spring pins welded to the mounting groove 17. The two ends of the return spring 41 are respectively sleeved on the two spring pins and abut against the groove wall of the mounting groove 17 and the unlocking push plate 4. When the pushing force applied to the unlocking push plate 4 is removed, the return spring 41 drives the unlocking push plate 4 to return to its original position. The locking plate 31 is then inserted into the tooth groove of the drive gear 12 for locking under the action of the locking spring 32. A slot is provided on the top of the base plate 14. A stop block is tightly inserted into the slot. The stop block is located on the side of the connecting plate away from the unlocking push plate 4 and abuts against the connecting plate, so that the unlocking push plate 4 will not fall out of the sliding groove 18 under the elastic action of the return spring 41. The stop block adopts a plug-in installation method, which does not affect the disassembly of the second support base 16.

[0039] The implementation principle of a drilling fixture in this application embodiment is as follows: After the tilt angle of the rotary table 2 is adjusted, the two sets of locking components 3 further lock the forward and reverse rotation of the drive gear 12. Combined with the meshing relationship between the drive gear 12 and the meshing groove 21, a double locking and limiting structure is formed. During the drilling process, the rotary table 2 is less likely to cause slight rotation of the product, thus improving the drilling quality. The unlocking push plate 4 is conical. As the unlocking push plate 4 is pushed into the mounting groove 17, the two locking plates 31 will move away from each other and disengage from the tooth groove to achieve unlocking. Unlocking only requires pushing one unlocking push plate 4, making the operation simple.

[0040] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0041] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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 disclosure.

[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0044] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A drill jig characterized by: The device includes a base (1), a rotating platform (2), a locking assembly (3), and an unlocking push plate (4). The base (1) is rotatably provided with a drive shaft (11), and the drive shaft (11) is provided with a synchronously rotating drive gear (12). The rotating platform (2) is rotatably connected to the base (1). The outer wall of the rotating platform (2) is provided with an arc surface, and the arc surface is provided with a meshing groove (21) that meshes with the drive gear (12). When the drive gear (12) drives the rotating platform (2) to rotate, it is suitable for adjusting the tilt angle of the product. The locking assembly (3) is provided in two sets, both sets of the locking assembly (3) are movably installed on the base (1) to be suitable for insertion into the corresponding tooth groove on the drive gear (12) to lock and limit the forward and reverse rotation of the drive gear (12); the unlocking push plate (4) is slidably connected to the base (1) and the unlocking push plate (4) is located between the two sets of the locking assembly (3) to drive the two sets of the locking assembly (3) to disengage from the tooth groove of the drive gear (12) to release the lock on the drive gear (12).

2. The drilling fixture of claim 1, wherein: Multiple clamps are installed at intervals on the rotary table (2), and the clamps are adapted to lock the product on the rotary table (2).

3. The drilling fixture according to claim 1, characterized in that: One end of the drive shaft (11) is provided with a drive handwheel, which rotates synchronously with the drive shaft (11).

4. A drill jig according to any one of claims 1-3, characterized in that: The rotating platform (2) is a semi-cylinder, the base (1) includes a support seat and an arc plate (13), the arc plate (13) is fixedly connected to the top of the support seat, the rotating platform (2) is rotatably connected to the arc plate (13), and the drive gear (12) is connected to the support seat.

5. The drilling fixture of claim 4, wherein: The arc plate (13) is provided with a T-shaped block (131), and the rotating table (2) is provided with an annular T-shaped groove (22) adapted to the T-shaped block (131). The T-shaped block (131) is inserted into the T-shaped groove (22).

6. The drilling fixture of claim 4, wherein: The top of the support base is provided with an installation groove (17), the drive gear (12) and the locking assembly (3) are both located in the installation groove (17), and the arc plate (13) is provided with a notch for the drive gear (12) to be inserted and mesh with the meshing groove (21).

7. The drilling fixture of claim 6, wherein: The support base includes a first support base (15) and a second support base (16). The first support base (15) is fixedly connected to the arc plate (13), and the second support base (16) is connected to the first support base (15) by bolts. The mounting groove (17) is provided on the first support base (15), and the side of the mounting groove (17) near the second support base (16) passes through the first support base (15).

8. The drilling fixture of claim 6, wherein: The locking assembly (3) includes a locking plate (31) and a locking spring (32). One side of the locking plate (31) is rotatably connected to the groove wall of the mounting groove (17), and the other side is adapted to be inserted into any tooth groove of the drive gear (12). The locking spring (32) drives the locking plate (31) to always have the tendency to be inserted into the tooth groove.

9. The drilling fixture of claim 8, wherein: The outer wall of the support base is provided with a sliding groove (18) communicating with the mounting groove (17). The unlocking push plate (4) is slidably inserted into the sliding groove (18). The unlocking push plate (4) is located between the two locking plates (31) and contacts the side of the two locking plates (31) that are close to each other. One side of the unlocking push plate (4) protrudes from the sliding groove (18). The unlocking push plate (4) is a conical plate. When the unlocking push plate (4) is driven to move into the mounting groove (17), the unlocking push plate (4) is adapted to drive the two locking plates (31) to disengage in the tooth groove.

10. The drilling fixture of claim 8, wherein: The unlocking push plate (4) is provided with a reset spring (41) at one end of the mounting groove (17). When the pushing force applied to the unlocking push plate (4) is removed, the reset spring (41) drives the unlocking push plate (4) to reset.

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