Multipurpose clamp for deep hole drill

Abstract

The multipurpose clamp comprises a cutter stabilizing sleeve, the cutter stabilizing sleeve is downwards arranged in an inner cavity of a self-centering conical disc in a sleeved mode, the lower end opening edge of the self-centering conical disc is arranged in a step-shaped circular groove in the upper end of a positioning shaft sleeve in a sleeved mode, and the lower end of the positioning shaft sleeve is connected with a deep hole drill in an embedded mode. The utility model belongs to the technical field of clamping equipment, and solves the problems that in the prior art, no proper clamping equipment is provided for large die forging rotary body parts, and the large die forging rotary body parts are difficult to position and clamp quickly during machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping equipment and relates to a multi-purpose clamp for deep hole drilling. Background Art

[0002] With the development of aviation equipment, large aircraft such as early warning, patrol, anti-submarine, and Airbus aircraft have emerged. The landing gear components of these aircraft are quite large and heavy. Most of them are large die-forged rotating parts with irregular shapes, which limits many effective machine tool clamping methods and makes rapid positioning and clamping difficult during machining.

[0003] Therefore, it is urgent to develop a new multi-purpose fixture that is suitable for the machine tool processing of the above-mentioned large die forging rotating parts. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-purpose fixture for deep hole drilling, which solves the problem in the prior art that there is no suitable clamping equipment for large die forging rotary parts, and it is difficult to quickly position and clamp them during machining.

[0005] The technical solution adopted by the utility model is a multi-purpose fixture for deep hole drilling, which includes a tool stabilizing sleeve, which is downwardly sleeved in the inner cavity of a self-centering cone disk, and the lower end edge of the self-centering cone disk is sleeved in the stepped circular groove at the upper end of the positioning sleeve, and the lower end of the positioning sleeve is nested and connected with the deep hole drill.

[0006] The multi-purpose fixture for deep hole drilling of the utility model is also characterized in that:

[0007] The structure of the tool stabilizing sleeve is that the main body of the tool stabilizing sleeve is cylindrical, the upper end edge of the tool stabilizing sleeve is provided with a flange mounting edge, and the flange mounting edge is provided with multiple pin holes at intervals along the circumference.

[0008] The structure of the self-centering cone disc is that the main body of the self-centering cone disc is also a hollow cylindrical shape, and the upper port of the self-centering cone disc is set along the inner circle as a double-layer step groove, wherein the upper step groove is a flared cone shape, which is called the part positioning cone surface; the lower step groove has multiple transition tube positioning holes evenly distributed along the axial direction, and the transition tube positioning holes are fixedly connected with the pin holes of the tool stabilizing sleeve by screws.

[0009] The lower port of the self-centering cone disc is called the transition pipe centering axis, which is nested and connected with the upper port step surface of the positioning sleeve of the deep hole drilling equipment; the outer edge of the lower port of the self-centering cone disc is provided with a flange mounting edge 2, which has a circle of axial through holes.

[0010] The structure of the positioning sleeve is that the main structure of the positioning sleeve is in the shape of a circular ring, the upper port of the positioning sleeve is provided with a convex rim, and the inner circumference of the upper port of the positioning sleeve is provided with a stepped cone disk positioning surface; the lower outer circumference of the positioning sleeve is provided with a closed deep hole drilling equipment connection positioning surface; the inner wall of the positioning sleeve is called the deep hole tool stabilizing sleeve positioning surface.

[0011] The beneficial effect of the utility model is that, through the combined multi-purpose fixture, a reliable, convenient and high-positioning-precision clamping method is provided for the machining of all such landing gear parts and even various rotary die forgings on deep hole drilling equipment in mechanical processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional exploded structure of the utility model before use;

[0013] Figure 2 This is a schematic diagram of the exploded structure of the utility model before assembly;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the tool stabilizing sleeve in the utility model;

[0015] Figure 4 It is a cross-sectional schematic diagram of the tool stabilizing sleeve in the present utility model;

[0016] Figure 5 This is a top view of the tool stabilizing sleeve in the present utility model;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the self-centering cone disc in the utility model;

[0018] Figure 7 It is a cross-sectional schematic diagram of the self-centering tapered disc in the present utility model;

[0019] Figure 8 It is a front view of the self-centering tapered disc in the utility model;

[0020] Figure 9 It is a top view of the self-centering tapered disc in the utility model;

[0021] Figure 10 This is a schematic diagram of the three-dimensional structure of the positioning sleeve in the utility model;

[0022] Figure 11 It is a cross-sectional schematic diagram of the positioning sleeve in the utility model;

[0023] Figure 12 It is a front view of the positioning sleeve in the utility model;

[0024] Figure 13 It is a top view of the positioning sleeve in the utility model;

[0025] Figure 14 This is a schematic diagram of the use state of the embodiment 1 of the device of the utility model;

[0026] Figure 15 This is a top view of the device embodiment 1 of the utility model in use;

[0027] Figure 16 This is a schematic diagram of the use state of the embodiment 2 of the device of the utility model;

[0028] Figure 17 This is a top view of the device embodiment 2 of the present utility model in use;

[0029] Figure 18 This is a schematic diagram of the use state of the embodiment 3 of the device of the utility model;

[0030] Figure 19 It is a top view of the usage state of embodiment 3 of the device of the utility model.

[0031] In the figure, 1. tool stabilizing sleeve, 2. self-centering cone disk, 3. positioning sleeve, 4. rotary die forging, 5. flange mounting edge 2, 6. pin hole, 7. transition pipe positioning hole, 8. through hole, 9. transition pipe centering shaft. DETAILED DESCRIPTION

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0033] The directions of “up, down, left, and right” mentioned in the following text are all intuitive descriptions of the corresponding drawings and are not intended to limit the installation positions of components of the device structure. The actual installation positions shall be deduced from the same principles.

[0034] Reference Figure 1 、 Figure 2 The structure of the utility model is that it includes a tool stabilizing sleeve 1, which is downwardly sleeved in the inner cavity of the self-centering cone disk 2, and the lower end edge of the self-centering cone disk 2 is sleeved in the stepped circular groove at the upper end of the positioning sleeve 3, and the lower end of the positioning sleeve 3 is precisely nested and connected with the deep hole drill (drilling tool).

[0035] Reference Figure 3 、 Figure 4 、 Figure 5 The structure of the tool stabilizing sleeve 1 is that the main body of the tool stabilizing sleeve 1 is cylindrical, and a flange mounting edge 1 is provided on the upper end edge of the tool stabilizing sleeve 1. The flange mounting edge 1 is provided with multiple pin holes 6 at intervals along the circumference. The pin holes 6 are connected to the threaded holes 1 in the self-centering conical disc 2 through M12 screws to realize the positioning of the tool stabilizing sleeve 1 in the self-centering conical disc 2.

[0036] The tool stabilizing sleeve 1 can flexibly change the length and circumference size according to the actual part tool specification requirements, achieve compatibility with more tools, and achieve the universality of tools of multiple specifications to meet different processing requirements.

[0037] Reference Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 The structure of the self-centering cone disc 2 is that the main body of the self-centering cone disc 2 is also a hollow cylindrical shape. The upper end of the self-centering cone disc 2 is set along the inner circle as a double-layer step groove, wherein the upper step groove is a flared conical surface shape, called the part positioning cone surface, which is used to locate the lower end chamfer of the rotating body die forging 4, playing a self-centering role; the lower step groove has a plurality of transition tube positioning holes 7 evenly distributed along the axial direction, and the transition tube positioning holes 7 are fixedly connected to the pin holes 6 of the aforementioned tool stabilizing sleeve 1 using M12 screws;

[0038] The inner wall of the main body of the self-centering cone 2 is called the stabilizing tube expansion position, which is used to stabilize the circular runout of the drilling tool during operation;

[0039] The lower port of the self-centering conical disc 2 is called the transition pipe centering shaft 9, which realizes a precise nesting connection with the upper port step surface of the positioning sleeve 3 of the deep hole drilling equipment; the outer edge of the lower port of the self-centering conical disc 2 is provided with a flange mounting edge 5, and the flange mounting edge 5 is opened with a circle of axial through holes 8 for fixed connection to the deep hole drilling equipment.

[0040] The self-centering cone disc 2 is used for self-centering clamping of parts, relying on the precise fit of the part positioning cone surface to quickly locate the horizontality of the part's axis centerline.

[0041] Reference Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 The structure of the positioning sleeve 3 is that the main structure of the positioning sleeve 3 is in the shape of a circular ring, the upper port of the positioning sleeve 3 is provided with a convex rim, and the inner circumference of the upper port of the positioning sleeve 3 is provided with a stepped cone disc positioning surface A, which is used to sleeve the transition tube centering shaft 9 of the self-centering cone disc 2; the lower outer circumference of the positioning sleeve 3 is provided with a deep hole drilling equipment connection positioning surface B with a closed end (thick at the top and thin at the bottom), which is used to make a tight nested connection with the tool hole of the deep hole drilling equipment; the inner wall of the positioning sleeve 3 is called the deep hole tool stabilizing sleeve positioning surface C, which is used to stabilize the circular runout of the drilling tool during operation.

[0042] It can be seen that the positioning sleeve 3 is used for the connection and positioning of the self-centering cone disc of the part and the deep hole drilling equipment. It relies on the precise fit of the outer diameter surface to reliably connect the cone disc assembly and the processing equipment. It can also be customized in different sizes according to different types of processing equipment to meet the compatibility of its combined fixture with more equipment, making it universal for multiple equipment.

[0043] The working process of this utility model is:

[0044] Reference Figure 1 、 Figure 2 Before use: According to the tool requirements of the parts, select the tool stabilizing sleeve 1 corresponding to the deep hole size; according to the equipment assembly requirements, select the positioning sleeve 3 of the deep hole drilling equipment; from top to bottom, follow the steps of the rotary die forging 4 - tool stabilizing sleeve 1 - self-centering cone 2 - positioning sleeve 3 - deep hole drilling equipment to complete the connection, that is:

[0045] 1) Insert the positioning surface of the tool stabilizing sleeve 1 into the expansion position of the stabilizing tube of the self-centering tapered disc 2, and securely connect the transition tube positioning hole 7 and the pin hole 6 with an M12 screw; after the lower end surface of the tool stabilizing sleeve 1 passes through the inner hole of the self-centering tapered disc 2 and the inner hole of the positioning sleeve 3, it is flush with the lower end surface of the positioning sleeve 3.

[0046] 2) One end of the processing equipment clamps the outer end of the rotary die forging 4 (or other parts blanks of similar shapes), and the inner end of the rotary die forging 4 is chamfered to closely contact the part positioning cone surface of the self-centering cone disk 2;

[0047] 3) Sleeve the transition tube centering shaft 9 of the self-centering conical disc 2 into the conical disc positioning surface A of the positioning sleeve 3;

[0048] 4) Tightly nest the deep hole drilling equipment connection positioning surface B of the positioning sleeve 3 with the tool hole of the deep hole drilling equipment; nest the deep hole tool stabilizing sleeve positioning surface C of the positioning sleeve 3 with the drilling tool, and use M12 screws to securely connect the through hole 8 to the deep hole drilling equipment;

[0049] 5) The other end of the drilling tool is connected to the deep hole equipment;

[0050] Once the parts to be processed are fixed, processing can begin; the machine tool is equipped with a tool to cut the rotary die forging 4.

[0051] After processing is completed: loosen the clamping parts, take out the rotary die forging 4 finished product, and put it into storage for rust prevention.

[0052] The innovation of this utility model is:

[0053] (1) The fixture has the function of self-centering (self-positioning) of parts;

[0054] (2) The fixture has good adaptability and can be used with more deep hole drilling equipment and processing tools;

[0055] (3) The fixture has good strength and high stability. After clamping and positioning, it can process similar rotating parts stably, with high precision and high efficiency.

[0056] (4) The fixture can be combined with a variety of diameter accessories and is compatible with the processing of parts with more different outer diameter specifications.

[0057] (5) The fixture is easy to disassemble and maintain.

[0058] Example 1

[0059] like Figure 14 、 Figure 15 As shown, the device of the utility model is used to clamp the landing gear piston rod of a certain passenger aircraft (i.e., the rotary die forging 4). The assembly process is:

[0060] 1) First, make the corresponding tool stabilizing sleeve 1, self-centering cone 2, and positioning sleeve 3 components according to the size of the landing gear piston rod, and assemble them according to the above steps;

[0061] 2) Attach one end of the landing gear piston rod to the clamping position of the machine tool, and align the chamfer of the other end of the landing gear piston rod to the positioning cone surface of the self-centering cone 2.

[0062] 3) Use screws to securely connect the through hole 8 of the positioning sleeve 3 to the deep hole drilling equipment;

[0063] After assembly is completed, the deep hole drilling equipment can begin to process the landing gear piston rod.

[0064] Example 2

[0065] like Figure 16 、 Figure 17 As shown, the device of the utility model is used to clamp the piston rod of a passenger aircraft (i.e., the rotary die forging 4). The assembly process is:

[0066] 1) First, make the corresponding tool stabilizing sleeve 1, self-centering cone 2, and positioning sleeve 3 parts according to the size of the piston rod, and assemble them according to the above steps;

[0067] 2) dock one end of the piston rod with the clamping position of the machine tool, and dock the chamfer of the other end of the landing gear piston rod with the positioning cone surface of the self-centering cone 2.

[0068] 3) Use screws to securely connect the through hole 8 of the positioning sleeve 3 to the deep hole drilling equipment;

[0069] After assembly is completed, the deep hole drilling equipment can start working to process the piston rod.

[0070] Example 3

[0071] like Figure 18 、 Figure 19 As shown, the device of the present invention is used to clamp a landing gear outer cylinder (i.e., the rotary die forging 4). The assembly process is:

[0072] 1) First, make the corresponding tool stabilizing sleeve 1, self-centering cone 2, and positioning sleeve 3 parts according to the size of the piston rod, and assemble them according to the above steps;

[0073] 2) dock one end of the piston rod with the clamping position of the machine tool, and dock the chamfer of the other end of the landing gear piston rod with the positioning cone surface of the self-centering cone 2.

[0074] 3) Use screws to securely connect the through hole 8 of the positioning sleeve 3 to the deep hole drilling equipment;

[0075] After assembly is completed, the deep hole drilling equipment can start working to process the piston rod.

[0076] It can be seen from the above three embodiments that the device of the utility model has a wide range of applications. By selecting and matching the size specifications, it can realize the clamping of large die forging rotating parts, which is convenient for machine tools to implement processing.

Claims

1. Multi-purpose fixture for deep hole drilling, characterized by: The tool stabilizing sleeve (1) is downwardly sleeved in the inner cavity of a self-centering cone disc (2), the lower end edge of the self-centering cone disc (2) is sleeved in a stepped circular groove at the upper end of a positioning sleeve (3), and the lower end of the positioning sleeve (3) is nested and connected with a deep hole drill.

2. The multi-purpose fixture for deep hole drilling according to claim 1, characterized in that: The structure of the tool stabilizing sleeve (1) is: The main body of the tool stabilizing sleeve (1) is cylindrical, and a flange mounting edge is provided on the upper end edge of the tool stabilizing sleeve (1). A plurality of pin holes (6) are provided at intervals along the circumference of the flange mounting edge.

3. The multi-purpose fixture for deep hole drilling according to claim 1, characterized in that: The structure of the self-centering cone disc (2) is: The main body of the self-centering cone disk (2) is also in the shape of a hollow cylinder. The upper end of the self-centering cone disk (2) is provided with a double-layer step groove along the inner circle, wherein the upper layer step groove is in the shape of a flared cone surface, which is called a part positioning cone surface; the lower layer step groove has a plurality of transition tube positioning holes (7) evenly distributed along the axial direction, and the transition tube positioning holes (7) are fixedly connected to the pin holes (6) of the tool stabilizing sleeve (1) by screws.

4. The multi-purpose fixture for deep hole drilling according to claim 1, characterized in that: The lower port of the self-centering cone disk (2) is called the transition tube centering shaft (9), which is nested and connected with the stepped surface of the upper port of the positioning sleeve (3) of the deep hole drilling equipment; the outer edge of the lower port of the self-centering cone disk (2) is provided with a flange mounting edge 2 (5), and the flange mounting edge 2 (5) is provided with a circle of axial through holes (8).

5. The multi-purpose fixture for deep hole drilling according to claim 1, characterized in that: The structure of the positioning sleeve (3) is: The main structure of the positioning sleeve (3) is in the shape of a circular ring, the upper end of the positioning sleeve (3) is provided with an outwardly convex edge, and the inner circumference of the upper end of the positioning sleeve (3) is provided with a stepped cone disc positioning surface; the lower outer circumference of the positioning sleeve (3) is provided with a closed deep hole drilling equipment connection positioning surface; the inner wall of the positioning sleeve (3) is called the deep hole tool stabilizing sleeve positioning surface.

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