A multifunctional drilling and spot facing fixture and use method thereof

Abstract

The present invention provides a multifunctional drilling and spot facing fixture, comprising: a base, which is installed on a machine tool; a power assembly, which is installed in the base; a clamping assembly connected to the base, the clamping assembly includes a first clamping component for clamping annular pipe workpieces, a second clamping component for clamping a ball cage flange, and a third clamping component for clamping a flange fork, each clamping component is connected to the power assembly, the first clamping component, the second clamping component and the third clamping component are all detachably connected to the base, and multiple first clamping components, second clamping components or third clamping components can be combined to connect to the power assembly. The present invention can clamp different types of clamping components, so that the fixture of the present invention is more versatile, avoiding the situation in the prior art that different clamps need to be used according to different types of workpieces to be processed, thereby reducing the production cost of the factory.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing fixtures, and in particular to a multifunctional drilling and spot facing fixture and a use method thereof. Background Art

[0002] In the field of mechanical processing, drilling is a cutting method that uses a drill bit to cut or enlarge a circular cross-section hole in a solid material. The drill bit is a rotating cutting tool, most of which have multiple cutting edges. When drilling, the drill bit will be pressed close to the workpiece, and the speed ranges from hundreds of RPM to thousands of RPM. The pressure and speed force the drill bit to pass through the workpiece, leaving a circular hole, and the chips will also fall off from the circular hole. Countersinking refers to the use of special tools to process the existing holes on the workpiece, flatten the end face or cut out a conical or cylindrical pit. Countersinking generally refers to processing holes specifically, used as a plane for bolt connection.

[0003] In the process of drilling or spot facing, the workpiece to be processed is generally clamped on the lathe with a fixture and the workpiece is processed with a drill. At present, a fixture can only clamp one kind of workpiece. Due to its single function, when the factory produces a large variety of products, multiple different fixtures are required for clamping and fixing, which is troublesome to operate and leads to excessively high costs for the factory. Summary of the invention

[0004] The present invention aims to solve the problem that the existing machine tool fixtures used for drilling or spotfacing have poor versatility in clamping workpieces and high cost due to their relatively single functions. In view of the above-mentioned shortcomings in the prior art, a multifunctional drilling and spotfacing fixture and a method of use are provided.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A multifunctional drilling and spot facing fixture, comprising:

[0007] A base, which is mounted on the machine tool;

[0008] A power assembly is installed in the base;

[0009] A clamping assembly connected to the base includes a first clamping component for clamping an annular tube workpiece, a second clamping component for clamping a ball cage flange, and a third clamping component for clamping a flange fork. Each clamping component is connected to a power component. The first clamping component, the second clamping component, and the third clamping component are all detachably connected to the base, and multiple first clamping components, second clamping components, or third clamping components can be combined to connect to the power component.

[0010] Furthermore, the first clamping component includes a positioning plate, a first positioning shaft and a pressure plate, the first positioning shaft is connected to the power component, and the first positioning shaft passes through the positioning plate connected to the base and is connected to the pressure plate, so that when the power component is working, the pressure plate can press the annular tube workpiece to be processed onto the positioning plate.

[0011] Furthermore, the second clamping component includes a second positioning shaft, a first ball cage flange tooling, a second ball cage flange tooling and a third ball cage flange tooling, the second positioning shaft is connected to the power assembly, and after the end of the second positioning shaft away from the power assembly extends out of the base, it is threadedly connected to the first ball cage flange tooling, the second ball cage flange tooling is also threadedly connected to the positioning shaft, and when the second ball cage flange tooling is screwed, the ball cage flange to be processed can be clamped between the first ball cage flange tooling and the second ball cage flange tooling, and the third ball cage flange tooling is connected to the base and can cover the outside of the ball cage flange to be processed.

[0012] Furthermore, the third clamping component includes a pressure rod and positioning blocks respectively located at both ends of the pressure rod, and there are two positioning blocks at each end of the pressure rod. Each positioning block is detachably connected to the base through a first connecting hole opened on the base, and each positioning block is provided with a positioning protrusion that can be inserted into the hole on the flange fork; the pressure rod is connected to the power assembly so that when the power assembly is working, the flange fork to be processed can be clamped on the positioning blocks at both ends through the pressure rod.

[0013] Furthermore, the third clamping component also includes a connecting pin, and the connecting pin is connected between the pressure rods, so that when the power assembly is working, the pressure rods connected by the connecting pin can press on the upper part of the flange fork at the same time.

[0014] Furthermore, a strip-shaped hole is provided on the positioning block, and the positioning block is connected to the base via a fastener, so that the relative position of the positioning block and the base can be adjusted by operating the fastener.

[0015] Furthermore, a positioning plate is connected to the base, and a second connecting hole for connecting the first clamping component, the second clamping component and the third clamping component with the power assembly is opened in the middle of the positioning plate.

[0016] Furthermore, the power assembly includes a plurality of air cylinders or hydraulic cylinders connected to the base, and each air cylinder or hydraulic cylinder can be independently connected to the first clamping component, the second clamping component and the third clamping component.

[0017] A machine tool equipped with the multifunctional drilling and spot facing fixture.

[0018] A method for using a multifunctional drilling and spot facing fixture comprises the following steps:

[0019] S1. Clamping annular pipe workpieces: Open the piston of the air cylinder or hydraulic cylinder, pass the annular pipe workpiece through the first positioning shaft, place it on the positioning plate, connect the pressing plate with the first positioning shaft, and drive the air cylinder or hydraulic cylinder to clamp the annular pipe workpiece;

[0020] S2. Clamp the ball cage flange: According to the size of the clamped ball cage flange, turn the position of the first ball cage flange fixture on the second positioning shaft, put the ball cage flange into the third ball cage flange fixture, and insert the second positioning shaft into the hole in the middle of the ball cage flange, tighten the second ball cage flange fixture to press the ball cage flange onto the first ball cage flange.

[0021] S3. Clamping the flange fork: According to the size of the flange fork to be clamped, first operate the fastener to adjust the positions of the two positioning blocks at both ends of the pressure rod on the base, so that the positioning protrusions on the two positioning blocks at one end of the pressure rod can be inserted into the holes on the flange fork, place the other side of the flange fork on the positioning plate, and drive the air cylinder or hydraulic cylinder to press on the upper part of the flange fork to clamp the flange fork.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a multifunctional drilling and spot facing fixture, which has a first connecting hole on a positioning plate on a base, and includes a plurality of clamping parts capable of clamping different types of workpieces, mainly capable of clamping three types of workpieces, including workpieces of annular tubes, workpieces of ball cage flanges, and workpieces of flange forks, so that the fixture of the present invention has stronger versatility, avoiding the situation in the prior art that different fixtures need to be used according to different types of workpieces to be processed, thereby reducing the production cost of the factory;

[0024] The base of the present invention is designed with a power assembly, which includes a plurality of air cylinders or hydraulic cylinders, each of which is detachably connected to the clamping assembly, and can clamp a plurality of workpieces of the same type on the base at the same time, thereby improving production efficiency. The use of air cylinders or hydraulic cylinders as power makes the structure simpler and easier to use.

[0025] When clamping the flange fork, two or four pressure rods are connected by a connecting pin, and only the corresponding air cylinder or hydraulic cylinder needs to be operated, thus saving a part of power.

[0026] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the clamp structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the first clamping component of the present invention;

[0029] Figure 3 is a schematic diagram of a second clamping component of the present invention;

[0030] Figure 4 It is a schematic diagram of the third clamping component of the present invention.

[0031] The reference numerals in the figure are: base 1, leakage hole 11, first connecting hole 12, positioning plate 13, second connecting hole 131, power assembly 2, cylinder 21, clamping assembly 3, first clamping component 31, positioning plate 311, first positioning shaft 312, pressure plate 313, second clamping component 32, second positioning shaft 321, first ball cage flange fixture 322, internal thread 3221, second ball cage flange fixture 323, third ball cage flange fixture 324, third clamping component 33, pressure rod 331, positioning block 332, connecting pin 333. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0033] Example 1: Clamping annular tube workpiece

[0034] A multifunctional drilling and countersinking fixture, such as Figure 1 As shown, it includes: a base 1, which is an "n"-shaped structure as a whole, including a panel part and a side connecting part. The base 1 can be installed on a machine tool using bolts. A leakage hole 11 is opened on the side of the base 1 so that the debris after drilling or cutting can be removed; a power component 2, which is installed at the lower part of the panel parallel to the base 1. The power component 2 can use a plurality of cylinders 21 or hydraulic cylinders connected to the base 1, and each cylinder 21 or hydraulic cylinder can be independently connected to a first clamping component 31. The first clamping component 31 can be installed one or more on the base 1; a clamping component 3 connected to the base 1. In this embodiment, the clamping component 3 includes a first clamping component 31 for clamping an annular pipe workpiece.

[0035] See also Figure 1 and Figure 2, the first clamping component 31 includes a positioning plate 311, a first positioning shaft 312 and a pressing plate 313, the first positioning shaft 312 is connected to the cylinder 21, the first positioning shaft 312 passes through the positioning plate 311 connected to the base 1 and is connected to the pressing plate 313, the positioning plate 311 is connected to the positioning plate 13 on the base 1 by bolts, and the pressing plate 313 is a circular structure, and the diameter can be designed according to the inner diameter of the annular tube workpiece; when clamping the annular tube workpiece, the piston of the cylinder 21 or the hydraulic cylinder is opened, the annular tube workpiece is passed through the first positioning shaft 312, and then placed on the positioning plate 311, the pressing plate 313 is connected to the first positioning shaft 312, and the cylinder 21 or the hydraulic cylinder is driven to clamp the annular tube workpiece. The positioning plate 13 is connected to the base 1 by bolts, and the width of the positioning plate 13 is less than the width of the panel of the base 1, so as to facilitate the placement of the product to be processed. A connecting hole for the first clamping component 31 to be connected is opened in the middle of the positioning plate 13. In order to prevent the workpiece, the positioning plate 13 is a flat plate structure.

[0036] Embodiment 2, clamping ball cage flange

[0037] like Figure 1 and Figure 3As shown, the structure of this embodiment is basically the same as that of embodiment 1, except that the clamping assembly 3 includes a second clamping component 32 for clamping the ball cage flange, the second clamping component 32 is detachably connected to the base 1, the second clamping component 32 includes a second positioning shaft 321, a first ball cage flange fixture 322, a second ball cage flange fixture 323 and a third ball cage flange fixture 324, the second positioning shaft 321 is connected to the output piston of the cylinder 21, and the second positioning shaft 321 extends out of the positioning plate 13 on the base 1 at one end away from the cylinder 21, and is threadedly connected to the first ball cage flange fixture 322, and the first ball cage flange fixture 322 is a matching ball cage flange bottom. The two cylinders are connected in structure, and the second ball cage flange fixture 323 is also threadedly connected to the positioning shaft. The upper inner wall of the first ball cage flange fixture 322 is designed with an internal thread 3221. The second ball cage flange fixture 323 can also be connected to the internal thread of the first ball cage flange fixture 322, so that the second ball cage flange fixture 323 is rotated to change the relative distance with the first ball cage flange fixture 322, so that the ball cage flange to be processed can be clamped between the first ball cage flange fixture 322 and the second ball cage flange fixture 323. The third ball cage flange fixture 324 is connected to the base 1 and can cover the outside of the ball cage flange to be processed, so as to prevent the ball cage flange from shaking. When clamping the ball cage flange, according to the size of the clamped ball cage flange, the position of the first ball cage flange fixture 322 on the second positioning shaft 321 is twisted to place the ball cage flange into the third ball cage flange fixture 324, and the second positioning shaft 321 is inserted into the hole in the middle of the ball cage flange. At this time, the lower part of the ball cage flange will be sleeved on the upper part of the first ball cage flange fixture 322 of the cylindrical structure, and the spline groove of the ball cage flange will cooperate with the upper part of the first ball cage flange to prevent the ball cage flange from rotating, or the second ball cage flange fixture 323 is twisted relative to the first ball cage flange fixture 322. Finally, the second ball cage flange fixture 323 is tightened to press the ball cage flange onto the first ball cage flange.

[0038] Embodiment 3, clamping flange fork

[0039] like Figure 1 and Figure 4As shown, the structure of this embodiment is basically the same as the above two embodiments, except that the clamping parts for clamping the flange fork in this embodiment are different. The third clamping part 33 includes a pressure rod 331 and positioning blocks 332 respectively located at both ends of the pressure rod 331. There are two positioning blocks 332 at each end of the pressure rod 331. Each positioning block 332 is detachably connected to the base 1 through the first connecting hole 12 opened on the base 1. Specifically, a strip hole is opened on the positioning block 332, and the positioning block 332 is connected to the base 1 through a fastener, so that the relative position of the positioning block 332 and the base 1 can be adjusted by operating the fastener; each positioning block 332 is provided with a positioning protrusion that can be inserted into the hole on the flange fork, so as to prevent the flange from being stuck. The fork rotates on the plane of the positioning plate 13; a pressure rod 331 hole is opened in the middle of the pressure rod 331 and is connected to the cylinder 21 or the hydraulic cylinder, so that when the power component 2 is working, the flange fork to be processed can be clamped on the positioning blocks 332 at both ends through the pressure rod 331. The third clamping component 33 also includes a connecting pin 333, which is connected between the pressure rods 331 and is located on the positioning plate 13. When the cylinder 21 is working, the pressure rod 331 connected by the connecting pin 333 can be pressed on the upper part of the flange fork at the same time. When the base 1 is full of the third clamping components 33, the connecting pin 333 can be used to connect multiple pressure rods 331. Only 1-2 cylinders 21 are used to work to achieve the downward pressing of the pressure rod 331. When clamping the flange fork: according to the size of the flange fork to be clamped, first operate the fastener to adjust the positions of the two positioning blocks 332 at both ends of the pressure rod 331 on the base 1, so that the positioning protrusions on the two positioning blocks 332 at one end of the pressure rod 331 can be inserted into the holes on the flange fork, and place the other side of the flange fork on the positioning plate 13. The height of the positioning plate 13 is the same as the height of the positioning block 332. Drive the cylinder 21 or the hydraulic cylinder to press on the upper part of the flange fork to clamp the flange fork.

[0040] The base 1 is connected to a positioning plate 13 , and a second connecting hole 131 is provided in the middle of the positioning plate 13 for connecting the first clamping member 31 , the second clamping member 32 and the third clamping member 33 with the power assembly 2 .

[0041] The present invention also seeks to protect a machine tool equipped with the multifunctional drilling and countersinking fixture.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A multifunctional drilling and spot facing fixture, characterized in that: include: A base, which is mounted on the machine tool; A power assembly is installed in the base; A clamping assembly connected to the base, the clamping assembly includes a first clamping component for clamping an annular tube workpiece, a second clamping component for clamping a ball cage flange, and a third clamping component for clamping a flange fork, each clamping component is connected to the power assembly, the first clamping component, the second clamping component, and the third clamping component are all detachably connected to the base, and multiple first clamping components, second clamping components, or third clamping components can be combined to connect to the power assembly; The second clamping component includes a second positioning shaft, a first ball cage flange tooling, a second ball cage flange tooling and a third ball cage flange tooling. The second positioning shaft is connected to the power assembly, and after the end of the second positioning shaft away from the power assembly extends out of the base, it is threadedly connected to the first ball cage flange tooling. The second ball cage flange tooling is also threadedly connected to the positioning shaft, and when the second ball cage flange tooling is screwed, the ball cage flange to be processed can be clamped between the first ball cage flange tooling and the second ball cage flange tooling. The third ball cage flange tooling is connected to the base and can cover the outside of the ball cage flange to be processed.

2. A multifunctional drilling and spot facing fixture according to claim 1, characterized in that: The first clamping component includes a positioning plate, a first positioning shaft and a pressure plate. The first positioning shaft is connected to the power component. The first positioning shaft passes through the positioning plate connected to the base and is connected to the pressure plate so that when the power component is working, the pressure plate can press the annular pipe workpiece to be processed onto the positioning plate.

3. The multifunctional drilling and spot facing fixture according to claim 1, characterized in that: The third clamping component includes a pressure rod and positioning blocks respectively located at both ends of the pressure rod. There are two positioning blocks at each end of the pressure rod. Each positioning block is detachably connected to the base through a first connecting hole opened on the base, and each positioning block is provided with a positioning protrusion that can be inserted into the hole on the flange fork; the pressure rod is connected to the power assembly so that when the power assembly is working, the flange fork to be processed can be clamped on the positioning blocks at both ends through the pressure rod.

4. A multifunctional drilling and spot facing fixture according to claim 3, characterized in that: The third clamping component also includes a connecting pin, which is connected between the pressure rods, so that when the power assembly is working, the pressure rods connected by the connecting pin can press on the upper part of the flange fork at the same time.

5. The multifunctional drilling and spot facing fixture according to claim 3, characterized in that: The positioning block is provided with a strip hole, and the positioning block is connected to the base through a fastener, so that the relative position of the positioning block and the base can be adjusted by operating the fastener.

6. A multifunctional drilling and spot facing fixture according to any one of claims 1 to 5, characterized in that: The base is also connected to a positioning plate, and a second connecting hole for connecting the first clamping component, the second clamping component and the third clamping component with the power assembly is opened in the middle of the positioning plate.

7. A multifunctional drilling and spot facing fixture according to claim 6, characterized in that: The power assembly comprises a plurality of air cylinders or hydraulic cylinders connected to the base, and each air cylinder or hydraulic cylinder can be independently connected to the first clamping component, the second clamping component and the third clamping component.

8. A machine tool equipped with the multifunctional drilling and spot facing fixture according to any one of claims 1 to 5.

9. A method for using the multifunctional drilling and spot facing fixture as claimed in claim 7, characterized in that: The steps include: S1. Clamping annular pipe workpieces: Open the piston of the air cylinder or hydraulic cylinder, pass the annular pipe workpiece through the first positioning shaft, place it on the positioning plate, connect the pressing plate with the first positioning shaft, and drive the air cylinder or hydraulic cylinder to clamp the annular pipe workpiece; S2. Clamp the ball cage flange: according to the size of the clamped ball cage flange, screw the position of the first ball cage flange fixture on the second positioning shaft, put the ball cage flange into the third ball cage flange fixture, insert the second positioning shaft into the hole in the middle of the ball cage flange, tighten the second ball cage flange fixture to press the ball cage flange onto the first ball cage flange; S3. Clamping the flange fork: According to the size of the flange fork to be clamped, first operate the fastener to adjust the positions of the two positioning blocks at both ends of the pressure rod on the base, so that the positioning protrusions on the two positioning blocks at one end of the pressure rod can be inserted into the holes on the flange fork, place the other side of the flange fork on the positioning plate, and drive the air cylinder or hydraulic cylinder to press on the upper part of the flange fork to clamp the flange fork.

Images