A disc lathe special tool of independent adjustable positioning core

Abstract

The utility model discloses a disc lathe special frock of adjustable positioning core belongs to disc lathe processing frock technical field, including frock bottom plate and product body, the frock bottom plate is assembled with the connecting block, the connecting block both sides corresponding frock bottom plate all installs radial adjusting screw, and the end of radial adjusting screw is butt joint in the side wall of connecting block, the top of connecting block is assembled with the positioning core body, the product body is assembled on the top chucking surface of positioning core body, the connecting block all installs axial adjusting screw on the front and back side corresponding of positioning core body, and the positioning core body and connecting block are locked fixed through bolt, and the positioning core body can realize rotation fine adjustment by loosening this bolt, the utility model has multistage independent adjusting core, coarse and fine adjustment separation, can continue to compensate the rotation center deviation after the base adjustment stroke limit, and the technical effect of compatible multi -specification machine tool chuck guarantees workpiece turning coaxial degree precision.

Description

Technical Field

[0001] This invention belongs to the field of machining tooling technology for disc lathes, and particularly relates to a special tooling for disc lathes with an independently adjustable positioning core. Background Technology

[0002] In the multi-stage turning process of mechanical parts, stringent requirements are placed on the coaxiality accuracy of the parts. Existing disc lathe tooling has significant drawbacks: the tooling is difficult to adapt to the chucks of different machine tool models, and the overall adjustment stroke is limited after the tooling is assembled to the machine tool chuck; when the tooling base is adjusted to the limit position, the center of the positioning core is difficult to coincide with the rotation center of the machine tool, which directly leads to the coaxiality of the finished product exceeding the tolerance, the parts being scrapped, and resulting in losses in production costs such as materials and time.

[0003] The existing tooling relies solely on the tooling base plate and the intermediate connecting structure for overall offset adjustment. The adjustment method is limited, and once the base adjustment reaches the limit of its stroke, there is no means of compensation and correction, which cannot meet the high-precision coaxiality processing requirements of the drawings. Summary of the Invention

[0004] To address the problems of existing technologies, this invention provides a disc-type lathe-specific tooling with an independently adjustable positioning core. It features multi-level independent self-alignment, separate rough and fine adjustment, and can continue to compensate for rotation center deviation after the base travel limit is adjusted. It is compatible with various machine tool chucks and ensures the coaxiality accuracy of the workpiece during turning. This invention solves the problem that existing technologies rely solely on the tooling base plate and intermediate connecting structure for overall offset adjustment, resulting in a single adjustment method, no compensation and correction means, and an inability to meet the high-precision coaxiality machining requirements of drawings.

[0005] This invention is implemented as follows: a disc-type lathe-specific tooling with an independently adjustable positioning core includes a tooling base plate and a product body. The tooling base plate is used to connect and fix with the machine tool chuck. A connecting block is mounted on the tooling base plate. Radial adjustment screws are installed on the tooling base plate on both sides of the connecting block. The ends of the radial adjustment screws abut against the side walls of the connecting block, driving the connecting block to make lateral adjustments relative to the tooling base plate. A positioning core is mounted on the top of the connecting block. The product body is mounted on the top clamping surface of the positioning core. Axial adjustment screws are installed on the connecting blocks on the front and rear sides of the positioning core. The ends of the axial adjustment screws abut against the side walls of the positioning core, driving the positioning core to make longitudinal adjustments relative to the connecting block. The positioning core and the connecting block are locked and fixed by bolts. Loosening these bolts allows the positioning core to rotate for fine adjustment. After adjustment, tightening the bolts fixes the positioning core and the connecting block.

[0006] As a preferred embodiment of the present invention, the tooling base plate is provided with mounting screw holes at its edge, the mounting screw holes being used to screw in bolts to install the tooling base plate and the machine tool chuck, and the tooling base plate is also provided with four first locking screw holes.

[0007] With this setup, the mounting screw holes enable the quick positioning and installation of the entire tooling set with the lathe chuck. The four first locking screw holes provide a locking reference for the connecting block. After the connecting block completes the lateral coarse adjustment, the bolts pass through the lateral adjustment holes and are locked into the first locking screw holes, thus fixing the connecting block to the tooling base plate.

[0008] As a preferred embodiment of the present invention, the four corners of the connecting block are provided with horizontal adjustment holes, and the first locking screw hole is located below each horizontal adjustment hole, for inserting bolts to lock and fix the adjusted connecting block to the tooling base plate.

[0009] With this setting, the horizontal adjustment hole is a long strip-shaped clearance hole, and the length direction of the horizontal adjustment hole matches the horizontal adjustment direction of the connecting block. When the connecting block is pushed by the radial adjustment screw and undergoes horizontal displacement, the bolt can float inside the horizontal adjustment hole. After adjustment, tighten the bolt to lock the connecting block and fix its position after coarse adjustment.

[0010] As a preferred embodiment of the present invention, an adjusting seat two is fixedly connected to the tooling base plate, and the radial adjusting screw is threaded through the adjusting seat two to achieve the pushing adjustment of the connecting block.

[0011] With this configuration, the second adjusting seat provides a threaded mounting base for the radial adjusting screw; when the radial adjusting screw is rotated, the screw is fed relative to the second adjusting seat, and the end of the screw pushes against the side wall of the connecting block, thereby driving the connecting block to complete the lateral displacement adjustment.

[0012] As a preferred embodiment of the present invention, the connecting block has four second locking screw holes in the middle, and the positioning core has four longitudinal adjustment holes at the top. The second locking screw holes are located below each longitudinal adjustment hole and are used to insert bolts to lock and fix the adjusted positioning core onto the connecting block.

[0013] With this setting, the longitudinal adjustment hole adopts an elongated clearance hole, and the length direction of the hole matches the longitudinal adjustment direction of the positioning core. After the positioning core is pushed by the axial adjustment screw to complete the longitudinal displacement, the bolt passes through the longitudinal adjustment hole and locks to the second locking screw hole to realize the locking and fixing of the positioning core relative to the connecting block. After the bolt is loosened, the longitudinal adjustment hole allows the positioning core to rotate in the plane to achieve eccentric fine adjustment.

[0014] In a preferred embodiment of the present invention, an adjusting seat is fixedly connected to the top of the connecting block, and the axial adjusting screw is threaded through the adjusting seat to push and adjust the positioning core.

[0015] With this setting, the adjustment seat provides a threaded support base for the axial adjustment screw; rotating the axial adjustment screw causes the screw to generate threaded feed, and the end abuts against and pushes the side wall of the positioning core, driving the positioning core to make longitudinal displacement relative to the connecting block, thus completing the fine adjustment of the positioning core.

[0016] As a preferred embodiment of the present invention, the top clamping surface of the positioning core is provided with a product fixing screw hole, which is used to correspond and communicate with the assembly hole on the product body, so as to facilitate the insertion of bolts to clamp and fix the product body.

[0017] With this setup, the product body is placed on the positioning core clamping surface, and bolts are screwed into the product fixing screw holes through the product body assembly holes, pressing and fixing the product body to be processed onto the positioning core, ensuring that the product will not shift during the turning process.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows: This tooling is equipped with a multi-stage adjustment structure. The first stage relies on the radial adjustment screw to drive the connecting block to complete a large-range coarse adjustment in the lateral direction; the second stage relies on the axial adjustment screw to drive the positioning core to complete the fine adjustment in the longitudinal direction; the third stage relies on loosening the locking bolt of the positioning core, allowing the positioning core to perform eccentric rotation fine adjustment in the plane for further compensation and alignment, effectively solving the pain point of the base adjustment reaching its limit without the ability to correct deviation; the connecting block relies on the horizontal adjustment hole and the positioning core relies on the longitudinal adjustment hole to achieve floating adjustment. After adjustment, they are locked by bolts respectively. The adjustment and locking operations are independent of each other, making on-site debugging and operation convenient; Adjustment seat one and adjustment seat two provide rigid support for the adjustment screw, ensuring stable force during push adjustment and preventing screw slippage or skewing; the tooling base plate can be directly adapted to the lathe chuck for installation, and the positioning core has its own product fixing screw hole, allowing the workpiece to be directly bolted and clamped, making workpiece assembly and disassembly convenient; through the multiple self-aligning structure, the coaxiality of the product body and the machine tool spindle rotation center is effectively ensured, reducing the probability of parts being scrapped due to out-of-tolerance coaxiality and reducing material and time losses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a top view structural diagram provided in an embodiment of the present invention; Figure 3 This is a cross-sectional structural schematic diagram provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the tooling structure for removing the product body according to an embodiment of the present invention; Figure 5 This is provided by the embodiments of the present invention. Figure 4 Top view of the structure; Figure 6 This is a schematic diagram of the connecting block structure provided in an embodiment of the present invention; Figure 7This is a schematic diagram of the positioning core structure provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the tooling base plate structure provided in an embodiment of the present invention.

[0020] In the diagram: 1. Tooling base plate; 101. Mounting screw hole; 102. First locking screw hole; 2. Connecting block; 201. Second locking screw hole; 202. Horizontal adjustment hole; 3. Positioning core; 301. Product fixing screw hole; 302. Longitudinal adjustment hole; 4. Axial adjustment screw; 401. Adjustment seat one; 5. Radial adjustment screw; 501. Adjustment seat two; 6. Product body. Detailed Implementation

[0021] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] refer to Figures 1 to 8 As shown in the figure, an embodiment of the present invention provides a disc-type lathe-specific tooling with an independently adjustable positioning core, including a tooling base plate 1 and a product body 6. The tooling base plate 1 is used to connect and fix with the machine tool chuck. A connecting block 2 is mounted on the tooling base plate 1. Radial adjusting screws 5 are installed on the tooling base plate 1 on both sides of the connecting block 2. The ends of the radial adjusting screws 5 abut against the side walls of the connecting block 2 and are used to drive the connecting block 2 to make lateral adjustments relative to the tooling base plate 1. A positioning core 3 is mounted on the top of the connecting block 2. The product body 6 is mounted on the top clamping surface of the positioning core 3. Axial adjusting screws 4 are installed on the connecting blocks 2 on the front and rear sides of the positioning core 3. The ends of the axial adjusting screws 4 abut against the side walls of the positioning core 3 and are used to drive the positioning core 3 to make longitudinal adjustments relative to the connecting block 2. The positioning core 3 and the connecting block 2 are locked and fixed by bolts. Loosening these bolts allows the positioning core 3 to rotate for fine adjustment. After adjustment, tightening the bolts fixes the positioning core 3 and the connecting block 2.

[0024] Specifically, the tooling base plate 1 has mounting screw holes 101 at its edge, which are used to screw in bolts to install the tooling base plate 1 and the machine tool chuck. The tooling base plate 1 also has four first locking screw holes 102.

[0025] Using the above scheme, the mounting screw hole 101 enables the quick positioning and installation of the entire tooling and the lathe chuck. The four first locking screw holes 102 provide a locking reference for the connecting block 2. After the connecting block 2 completes the horizontal coarse adjustment, the bolt passes through the horizontal adjustment hole 202 and locks into the first locking screw hole 102, fixing the connecting block 2 on the tooling base plate 1.

[0026] Specifically, each of the four corners of the connecting block 2 is provided with a horizontal adjustment hole 202. The first locking screw hole 102 is located below each horizontal adjustment hole 202 and is used to insert bolts to lock and fix the adjusted connecting block 2 onto the tooling base plate 1.

[0027] Using the above scheme, the horizontal adjustment hole 202 is an elongated clearance hole, and the length direction of the horizontal adjustment hole 202 matches the horizontal adjustment direction of the connecting block 2. When the connecting block 2 is pushed by the radial adjustment screw 5 and undergoes horizontal displacement, the bolt can float inside the horizontal adjustment hole 202. After adjustment, the bolt is tightened to lock the connecting block 2 and fix the position of the connecting block 2 after coarse adjustment.

[0028] Specifically, an adjustment seat 2 501 is fixedly connected to the tooling base plate 1, and the radial adjustment screw 5 is threaded through the adjustment seat 2 501 to push and adjust the connecting block 2.

[0029] Using the above scheme, the second adjusting seat 501 provides a threaded mounting base for the radial adjusting screw 5; when the radial adjusting screw 5 is rotated, the screw is fed by the thread relative to the second adjusting seat 501, and the end of the screw pushes against the side wall of the connecting block 2, thereby driving the connecting block 2 to complete the lateral displacement adjustment.

[0030] Specifically, the connecting block 2 has four second locking screw holes 201 in the middle, and the positioning core 3 has four longitudinal adjustment holes 302 on the top. The second locking screw holes 201 are located below each longitudinal adjustment hole 302 and are used to insert bolts to lock and fix the adjusted positioning core 3 onto the connecting block 2.

[0031] Using the above scheme, the longitudinal adjustment hole 302 adopts an elongated clearance hole, and the length direction of the hole matches the longitudinal adjustment direction of the positioning core 3. After the positioning core 3 is pushed by the axial adjustment screw 4 to complete the longitudinal displacement, the bolt passes through the longitudinal adjustment hole 302 and locks to the second locking screw hole 201, thereby realizing the locking and fixing of the positioning core 3 relative to the connecting block 2. After the bolt is loosened, the longitudinal adjustment hole 302 allows the positioning core 3 to rotate in the plane to achieve eccentric fine adjustment.

[0032] Specifically, an adjustment seat 401 is fixedly connected to the top of the connecting block 2, and the axial adjustment screw 4 is threaded through the adjustment seat 401 to push and adjust the positioning core 3.

[0033] Using the above scheme, the adjusting seat 401 provides a threaded support base for the axial adjusting screw 4; rotating the axial adjusting screw 4 causes the screw to feed threadedly, and the end abuts against the side wall of the positioning core 3, driving the positioning core 3 to make longitudinal displacement relative to the connecting block 2, thereby completing the fine adjustment of the positioning core 3.

[0034] Specifically, the top clamping surface of the positioning core 3 is provided with a product fixing screw hole 301, which is used to communicate with the assembly hole on the product body 6 so as to insert bolts to clamp and fix the product body 6.

[0035] Using the above method, the product body 6 is placed on the clamping surface of the positioning core 3, and the bolts are screwed into the product fixing screw holes 301 through the assembly holes of the product body 6, pressing and fixing the product body 6 to be processed on the positioning core 3, so as to ensure that the product will not be displaced during the turning process.

[0036] Working principle of the invention: In use, first, the fixture base plate 1 is installed and fixed on the machine tool chuck. The fixture base plate 1 serves as the mounting base for the entire fixture. The connecting block 2 is roughly adjusted laterally relative to the fixture base plate 1 by using the radial adjusting screw 5. After the position of the connecting block 2 is adjusted, the connecting block 2 is locked. Then, the positioning core 3 is finely adjusted longitudinally relative to the connecting block 2 by using the axial adjusting screw 4 to achieve initial alignment of the positioning core 3. When the connecting block 2 has been adjusted to its travel limit, but the center of the positioning core 3 still cannot be aligned with the rotation center of the machine tool, the locking bolts between the positioning core 3 and the connecting block 2 are loosened. The positioning core 3 can then be rotated and finely adjusted in the plane. During the adjustment process, a dial indicator is used to check and correct the alignment of the center of the positioning core 3 with the rotation center of the machine tool. After alignment, the locking bolts are tightened again to lock the position of the positioning core 3. Then, the product body 6 is clamped and fixed on the clamping surface of the positioning core 3, and turning can then be carried out.

[0037] This fixture adopts a multi-stage self-aligning structure, from coarse adjustment to fine adjustment and then to eccentric compensation micro-adjustment. It can compensate for assembly deviations caused by different machine tool chucks, ensure the coaxiality accuracy of the workpiece, is practical and flexible, has a wide range of applications, and effectively improves machining accuracy and work efficiency.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disc-type lathe-specific tooling with an independently adjustable positioning core, comprising a tooling base plate (1) and a product body (6), characterized in that: The tooling base plate (1) is used to connect and fix with the machine tool chuck. A connecting block (2) is mounted on the tooling base plate (1). Radial adjusting screws (5) are installed on the tooling base plate (1) on both sides of the connecting block (2). The ends of the radial adjusting screws (5) abut against the side wall of the connecting block (2) to drive the connecting block (2) to make lateral adjustments relative to the tooling base plate (1). A positioning core (3) is mounted on the top of the connecting block (2). The product body (6) is mounted on the top of the positioning core (3). On the assembly clamping surface, axial adjustment screws (4) are installed on the connecting blocks (2) corresponding to the front and rear sides of the positioning core (3). The end of the axial adjustment screw (4) abuts against the side wall of the positioning core (3) and is used to drive the positioning core (3) to make longitudinal adjustment relative to the connecting block (2). The positioning core (3) and the connecting block (2) are locked and fixed by bolts. Loosening the bolts can enable the positioning core (3) to rotate and make fine adjustments. After the adjustment is in place, tighten the bolts to fix the positioning core (3) and the connecting block (2).

2. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 1, characterized in that: The tooling base plate (1) has mounting screw holes (101) at its edge. The mounting screw holes (101) are used to screw in bolts to install the tooling base plate (1) and the machine tool chuck. The tooling base plate (1) also has four first locking screw holes (102).

3. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 2, characterized in that: The four corners of the connecting block (2) are provided with horizontal adjustment holes (202). The first locking screw hole (102) is located below each horizontal adjustment hole (202) and is used to insert bolts to lock and fix the adjusted connecting block (2) on the tooling base plate (1).

4. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 1, characterized in that: An adjusting seat 2 (501) is fixedly connected to the tooling base plate (1), and the radial adjusting screw (5) is threaded through the adjusting seat 2 (501) to push and adjust the connecting block (2).

5. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 1, characterized in that: The connecting block (2) has four second locking screw holes (201) in the middle, and the positioning core (3) has four longitudinal adjustment holes (302) at the top. The second locking screw holes (201) are located below each longitudinal adjustment hole (302) and are used to insert bolts to lock and fix the adjusted positioning core (3) on the connecting block (2).

6. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 1, characterized in that: The top of the connecting block (2) is fixedly connected to the adjusting seat (401), and the axial adjusting screw (4) is threaded through the adjusting seat (401) to push and adjust the positioning core (3).

7. The disc-type lathe fixture with an independently adjustable positioning core as described in claim 1, characterized in that: The top clamping surface of the positioning core (3) is provided with a product fixing screw hole (301) for corresponding communication with the assembly hole on the product body (6) so as to insert bolts to clamp and fix the product body (6).

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