Non-equal-height workpiece inner hole batch honing device and honing method

Abstract

The invention discloses a non-equal-height workpiece inner hole batch honing device and method, and relates to the technical field of efficient precise inner hole honing machining.The non-equal-height workpiece inner hole batch honing device comprises a vertical lathe bed, a workpiece clamp system is arranged at the upper end of the vertical lathe bed, and a honing reamer system is arranged on one side of the workpiece clamp system; the vertical lathe bed comprises a lathe bed base, a Y-axis sliding table, an X-axis sliding table, a first honing reamer, an electric spindle, a Z-axis sliding table, a stand column and a heightening table. According to the batch honing device for the inner holes of the workpieces with different heights, the workpieces with different heights can be pressed on the transverse pressing plate through the transverse pressing plate and the adjusting nut through the combination of the adjustable workpiece clamp system and the multiple honing reamer sets, displacement of the workpieces with different heights in the machining process is avoided, batch honing machining of the workpieces can be achieved, and the working efficiency is improved. The inner hole honing device can adapt to inner hole honing machining of workpieces with different heights, and the problems that in a traditional machining mode, due to the fact that the heights of the workpieces are inconsistent, efficiency is low, and precision is unstable are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-efficiency and precise inner hole honing processing, and in particular to a batch honing device and a honing method for inner holes of non-uniform height workpieces. Background Art

[0002] A honing device is a mechanical device or tool used for precision machining. It is primarily used to finish the inner surfaces of hole-type parts to improve their dimensional accuracy, shape accuracy (such as roundness and cylindricity), and surface roughness. It is widely used in the automotive, aerospace, precision molds, and hydraulic components industries, such as machining engine blocks, hydraulic cylinder barrels, and gear bores.

[0003] When the existing honing device is installed and used, since the honing cutter used for honing is a flexible tooling, a conventional rotary disc honing machine can be used for processing workpieces with equal height holes. However, for workpieces with unequal heights, since the honing starting point and ending point of each workpiece are not consistent, if the traditional processing method is used, it will cause low efficiency, inconsistent precision, and even cause risks such as interference and machine tool collision, which brings certain adverse effects to people's use process. In order to solve the shortcomings of the existing technology, we propose a batch honing device and honing method for the inner holes of non-equal height workpieces. Summary of the Invention

[0004] The main purpose of the present invention is to provide a batch honing device and honing method for inner holes of non-uniform height workpieces, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A batch honing device for inner holes of non-uniform height workpieces comprises a vertical bed, a workpiece clamping system is provided on the upper end of the vertical bed, and a honing reamer system is provided on one side of the workpiece clamping system.

[0006] Preferably, the vertical bed includes a bed base, a Y-axis slide, an X-axis slide, a first honing reamer, an electric spindle, a Z-axis slide, a column and a heightening platform, wherein the Y-axis slide and the X-axis slide are provided on the outer surface of the upper end of the bed base, the Z-axis slide is provided on the front side of the column, the electric spindle is provided on the upper end of the Z-axis slide, and the first honing reamer is provided at the lower end of the electric spindle.

[0007] Preferably, the honing reamer system consists of a tooling bracket, a tool holder clamp, a BT tool holder and a second honing reamer. The tool holder clamp is located at the upper end of the tooling bracket, and screw holes are provided inside the tool holder clamp and the tooling bracket. The tool holder clamp is adapted to the BT tool holder, and a second honing reamer is provided inside the BT tool holder. A total of six sets of BT tool holder and tool holder clamp combination structures are provided.

[0008] Preferably, the workpiece clamping system includes a tooling table, a cylinder, a cylinder connecting seat, a telescopic slide, a transverse pressure plate, an adjusting nut and workpieces of unequal heights. The tooling table is located at the upper end of the X-axis slide, the six cylinders are located on the side of the tooling table, and the adjusting nut is located at the upper end of the transverse pressure plate.

[0009] Preferably, a plurality of through holes are provided inside the workbench, and the positions of the through holes are aligned with the first honing reamer processing path, and the workpieces of unequal heights are aligned with the through holes and installed on the workbench one by one, the telescopic shaft of the cylinder is threadedly connected to the cylinder connecting seat, a bolt A is provided between the cylinder connecting seat and the telescopic slide, a bolt B is provided between the cross pressure plate and the telescopic slide, a threaded hole is provided inside the cross pressure plate, and the adjusting nut and the cross pressure plate are detachably connected through the threaded hole, and the adjusting nut is used to adjust the clamping force on the workpiece.

[0010] Preferably, the Y-axis slide and the X-axis slide form a cross pair for realizing the transverse X-axis and longitudinal Y-axis movement positioning of the workpiece fixture system. Another set of BT tool holders is arranged between the electric spindle and the first honing reamer. The electric spindle and the Z-axis slide realize the vertical feed Z-axis and rotational movement of the first honing reamer.

[0011] Preferably, including: S1: Workpiece and tool installation: Place workpieces of different heights one by one into the internal through-holes of the workbench. According to the heights of the workpieces of different heights, each set of cylinders drives the corresponding cylinder connection seat, cross-pressing plate and other structures to adjust the height so that the cross-pressing plate is close to the workpieces of different heights. The pressing force of the cross-pressing plate is adjusted by adjusting the nut to fix the workpiece. Then, according to the diameter of the inner hole of the workpiece, the second honing reamer of the corresponding specification is installed into the BT tool holder and fixed to the honing reaming system through the tool holder clamp. The number and position of the second honing reamer are adjusted according to the number and position of the workpieces of different heights. S2: Parameter input and tool setting: In the CNC control system interface of the machine tool, input the height parameters of each workpiece one by one, that is, the Z-axis coordinate value from the upper surface of the workpiece to the machine tool coordinate system. The system automatically calculates the starting and ending points of the honing of each workpiece, and then uses the tool setting instrument to calibrate the coaxiality of the honing tool and the inner hole of the workpiece; S3: Automatic honing processing: Press the "Program Start" button, and the machine tool will run according to the following process: X / Y axis positioning: The workpiece fixture system moves through the X-axis slide and the Y-axis slide to transfer the first workpiece to the position directly below the first honing reamer; Z-axis feed processing: the electric spindle drives the first honing reamer to rotate like a roughing tool, and the Z-axis slide drives the first honing reamer to feed axially along the inner hole of the workpiece to complete the reaming + honing composite processing according to the preset speed and feed parameters; Batch cycle processing: After the first workpiece is processed, the Y-axis slide and the X-axis slide will sequentially move the subsequent workpieces to the processing position, and repeat the steps until the first honing reamer completes the corresponding process of all workpieces, such as roughing. S4: Tool change and process switching: After the rough machining is completed, before the tool needs to be changed, press the "Program Pause" button in the CNC control system interface of the machine tool, remove the BT tool holder and the honing reamer combination that has been processed at the lower end of the electric spindle, and the tool holder clamp of the honing reamer system is the spare tool set to be replaced and installed on the Z-axis slide. Pull the BT tool holder out of the tool holder clamp vertically, and then install the BT tool holder under the electric spindle. After checking that everything is correct, repeat the S step and perform fine machining on all workpieces until the multi-process processing of multiple tools is completed, such as rough reaming → fine reaming → honing; S5: Processing completion and unloading: After all processes are completed, the machine tool will alarm, loosen the adjusting nut, remove the cross pressure plate, and take out the processed workpiece.

[0012] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: The batch honing device and method for inner holes of workpieces with non-uniform heights can adapt to the inner hole honing processing of workpieces with different heights through the provision of structures such as a transverse pressure plate and a first honing reamer, and through an adjustable workpiece clamping system and a combination of multiple sets of honing reamers, thereby avoiding the problems of low efficiency and unstable precision caused by inconsistent workpiece heights in traditional processing methods.

[0013] The device and method for batch honing inner holes of non-uniform workpieces have a workpiece clamping system, so that workpieces of unequal heights can be pressed against the cross-pressing plate by a cross-pressing plate and an adjusting nut, thereby preventing displacement of the workpieces of unequal heights during machining. Batch honing of workpieces can be achieved, and multiple workpieces can be clamped at one time, thereby reducing the number of clamping times and improving production efficiency and production accuracy.

[0014] The device and method for batch honing inner holes of non-uniform height workpieces have a honing reamer system, which enables the user to store honing reamers for different purposes in the honing reamer system. The honing reamer system is close to the workpiece fixture system, and when the tool needs to be changed, the tool change operation can be performed quickly, reducing the labor intensity of the operator.

[0015] The device and method for batch honing inner holes of non-uniform workpieces adopt a modular structure of a vertical bed, a honing reamer system, and a workpiece fixture system. Each system is installed independently, which is convenient for troubleshooting and component replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the vertical bed of the present invention; Figure 3 It is a structural schematic diagram of the honing reamer system of the present invention; Figure 4 This is a schematic diagram of the combined structure of the tooling bracket and the tool handle clamp of the present invention; Figure 5 It is a schematic structural diagram of the workpiece clamping system of the present invention; Figure 6 It is a parameter input interface diagram of the CNC control system of the present invention; In the figure: 1. Vertical bed; 2. Honing reamer system; 3. Workpiece clamping system; 11. Bed base; 12. Y-axis slide; 13. X-axis slide; 14. First honing reamer; 15. Electric spindle; 16. Z-axis slide; 17. Column; 18. Heightening table; 21. Fixture bracket; 22. Tool holder clamp; 23. BT tool holder; 24. Second honing reamer; 31. Fixture table; 32. Cylinder; 33. Cylinder connecting seat; 34. Telescopic slide; 35. Cross pressure plate; 36. Adjusting nut; 37. Workpieces of different heights. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1 As shown, a batch honing device and honing method for inner holes of non-uniform height workpieces are composed of three modules: a vertical bed 1, a honing reamer system 2, and a workpiece clamping system 3.

[0019] like Figure 2 As shown, a batch honing device and honing method for inner holes of non-uniform height workpieces, the vertical bed 1 is composed of a bed base 11, a heightening platform 18 and a column 17, etc. A cross pair consisting of a Y-axis slide 12 and an X-axis slide 13 is set on the bed base 11, which is used to realize the horizontal X-axis and longitudinal Y-axis movement positioning of the workpiece clamping system 3, a Z-axis slide 16 is installed on the front side of the column 17, the Z-axis slide 16 is equipped with an electric spindle 15, and the electric spindle 15 is connected to the first honing reamer 14 through a set of BT tool holders to realize the vertical feed Z-axis and rotation movement of the honing reamer.

[0020] like Figure 3 as well as Figure 4As shown, a batch honing device and honing method for inner holes of non-uniform workpieces are shown. The honing reamer system 2 consists of a tool support 21, a tool holder clamp 22, a BT tool holder 23 and a second honing reamer 24. The tool support 21 is fixed to the side of the X-axis slide 13 by bolts C. The tool holder clamp 22 is installed on the upper part of the tool support 21 and has a screw hole inside. It is detachably connected to the tool support 21 by bolts D. The second honing reamer 24 is fixed in the BT tool holder 23 by a lateral screw locking method. A total of 6 groups of BT tool holder-honing reamer combinations are provided, which can adapt to the processing requirements of different hole diameters. The BT tool holder 23 is plugged into the tool holder clamp 22.

[0021] like Figure 5 As shown, a batch honing device and honing method for the inner holes of non-uniform workpieces are shown. A tooling table 31 is installed on the X-axis slide 13. A plurality of through holes are provided on the table top for positioning workpieces 37 of unequal heights. The positions of the through holes are aligned with the processing path of the first honing reamer 14. Six cylinders 32 are distributed along the side of the tooling table 31. The telescopic shaft of the cylinder 32 is connected to the cylinder connecting seat 33 through a thread. The cylinder connecting seat 33 and the telescopic slide 34 are fixed by bolts A. The end of the telescopic slide is installed with a cross-pressing plate 35 by bolts B. A threaded hole is provided inside the cross-pressing plate 35. The clamping force on the workpiece can be precisely adjusted by adjusting the nut 36 to adapt to workpieces of different thicknesses or materials.

[0022] It should be noted that the present invention is a batch honing device and honing method for the inner holes of workpieces with non-uniform heights. When in use, workers place workpieces 37 of unequal heights one by one into the internal through holes of the workbench 31. According to the heights of the workpieces 37 of unequal heights, each group of cylinders 32 drives the corresponding cylinder connecting seat 33, cross pressure plate 35 and other structures to adjust the height, so that the cross pressure plate 35 is close to the workpieces 37 of unequal heights. The clamping force of the cross pressure plate 35 is adjusted by adjusting the nut 36 to fix the workpiece.

[0023] After installing the appropriate BT tool holder-honing reamer combination inside the honing reamer system 2 and the electric spindle 15 together, enter the height parameter values of different workpieces one by one in the machine tool CNC control interface, press the "Program Start" button, and the Y-axis slide 12, X-axis slide 13 and Z-axis slide 16 drive the first honing reamer 14 to move, so that the electric spindle 15 can drive the first honing reamer to process each workpiece. After the first process is completed by the first honing reamer, the worker presses the "Program Pause" button to change the tool again.

[0024] Remove the BT tool holder and honing reamer combination that has been processed, place the combination on the tool holder clamp 22, remove the next set of BT tool holder-honing reamer combination in the tool holder clamp 22, and then install the BT tool holder 23 under the electric spindle 15. After checking that everything is correct, press the "Program Start" button to process the workpiece 37 of different heights.

[0025] Repeat the tool changing process until the multi-process processing of multiple tools is completed, such as rough reaming → fine reaming → honing, and so on until all the honing processes are completed. Then loosen the adjusting nut 36 and remove the uneven height workpiece 37 on the upper end of the tooling table 31.

[0026] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A batch honing device for inner holes of non-uniform workpieces, comprising a vertical bed (1), characterized in that: A workpiece clamping system (3) is provided at the upper end of the vertical bed (1), and a honing reamer system (2) is provided on one side of the workpiece clamping system (3).

2. The device for batch honing inner holes of workpieces with non-uniform heights according to claim 1, characterized in that: The vertical bed (1) comprises a bed base (11), a Y-axis slide (12), an X-axis slide (13), a first honing reamer (14), an electric spindle (15), a Z-axis slide (16), a column (17) and a heightening platform (18), wherein the Y-axis slide (12) and the X-axis slide (13) are provided on the outer surface of the upper end of the bed base (11), the Z-axis slide (16) is provided on the front side of the column (17), the electric spindle (15) is provided on the upper end of the Z-axis slide (16), and the first honing reamer (14) is provided on the lower end of the electric spindle (15).

3. The device for batch honing inner holes of workpieces with non-uniform heights according to claim 1, characterized in that: The honing reamer system (2) is composed of a tool support (21), a tool holder clamp (22), a BT tool holder (23) and a second honing reamer (24). The tool holder clamp (22) is located at the upper end of the tool support (21), and screw holes are provided inside the tool holder clamp (22) and the tool support (21). The tool holder clamp (22) is adapted to the BT tool holder (23), and the second honing reamer (24) is provided inside the BT tool holder (23). A total of six groups of BT tool holders (23) and tool holder clamps (22) are provided.

4. The device for batch honing inner holes of workpieces with non-uniform heights according to claim 1, characterized in that: The workpiece fixture system (3) includes a tooling table (31), a cylinder (32), a cylinder connecting seat (33), a telescopic slide (34), a transverse pressure plate (35), an adjusting nut (36) and workpieces of unequal heights (37), wherein the tooling table (31) is located at the upper end of the X-axis slide (13), the six cylinders (32) are located on the side of the tooling table (31), and the adjusting nut (36) is located at the upper end of the transverse pressure plate (35).

5. The device for batch honing inner holes of workpieces with non-uniform heights according to claim 1 is characterized in that: A plurality of through holes are provided inside the tooling table (31), and the positions of the through holes are aligned with the processing path of the first honing reamer (14). The unequal height workpieces (37) are aligned with the through holes one by one and mounted on the tooling table (31). The telescopic shaft of the cylinder (32) is threadedly connected to the cylinder connecting seat (33). A bolt A is provided between the cylinder connecting seat (33) and the telescopic slide (34). A bolt B is provided between the transverse pressure plate (35) and the telescopic slide (34). A threaded hole is provided inside the transverse pressure plate (35). The adjusting nut (36) and the transverse pressure plate (35) are detachably connected through the threaded hole. The adjusting nut (36) is used to adjust the clamping force on the workpiece.

6. The device for batch honing inner holes of workpieces with non-uniform heights according to claim 2, characterized in that: The Y-axis slide (12) and the X-axis slide (13) form a cross pair for realizing the lateral (X-axis) and longitudinal (Y-axis) movement and positioning of the workpiece clamping system (3); another set of BT tool holders is provided between the electric spindle (15) and the first honing reamer (14); the electric spindle (15) and the Z-axis slide (16) realize the vertical feed (Z-axis) and rotation movement of the first honing reamer (14).

7. A honing method for a batch honing device for inner holes of workpieces with non-uniform heights, applicable to the batch honing device for inner holes of workpieces with non-uniform heights according to any one of claims 1 to 6, characterized in that: include: S1: Installation of workpieces and tools: Place the workpieces (37) of different heights one by one into the internal through-holes of the tooling table (31). According to the heights of the workpieces (37) of different heights, each group of cylinders (32) drives the corresponding cylinder connection seat (33), the cross-pressing plate (35) and other structures to adjust the heights so that the cross-pressing plate (35) is close to the workpieces (37) of different heights. The pressing force of the cross-pressing plate (35) is adjusted by adjusting the nut (36) to fix the workpiece. Then, according to the inner hole diameter of the workpiece, the second honing reamer (24) of the corresponding specification is installed into the BT tool holder (23) and fixed to the honing reamer system (2) through the tool holder clamp (22). The number and position of the second honing reamer (24) are adjusted according to the number and position of the workpieces (37) of different heights. S2: Parameter input and tool setting: In the CNC control system interface of the machine tool, enter the height parameters of each workpiece one by one (that is, the Z-axis coordinate value from the upper surface of the workpiece to the machine tool coordinate system). The system automatically calculates the starting and ending points of the honing of each workpiece, and then uses the tool setting instrument to calibrate the coaxiality of the honing tool and the inner hole of the workpiece; S3: Automatic honing processing: Press the "Program Start" button, and the machine tool will run according to the following process: X / Y axis positioning: The workpiece fixture system (3) moves via the X-axis slide (13) and the Y-axis slide (12) to transfer the first workpiece to the position directly below the first honing reamer (14); Z-axis feed processing: the electric spindle (15) drives the first honing reamer (14) (such as a roughing tool) to rotate, and the Z-axis slide (16) drives the first honing reamer (14) to feed axially along the inner hole of the workpiece to complete the reaming + honing composite processing (according to the preset speed and feed parameters); Batch cycle processing: After the first workpiece is processed, the Y-axis slide (12) and the X-axis slide (13) sequentially transfer the subsequent workpieces to the processing position, and repeat the steps until the first honing reamer (14) completes the corresponding process (such as rough processing) of all workpieces; S4: Tool change and process switching: After the rough machining is completed, before the tool needs to be changed, press the "Program Pause" button in the CNC control system interface of the machine tool, remove the BT tool holder and the honing reamer combination that have been processed at the lower end of the electric spindle (15), and the 6 sets of tool holder clamps of the honing reamer system (2) are the spare tool sets to be replaced and installed on the Z-axis slide (16). Pull the BT tool holder (23) vertically out of the tool holder clamp, and then install the BT tool holder (23) under the electric spindle (15). After checking that there are no errors, repeat the S3 step and perform fine machining on all workpieces until the multi-process machining of multiple tools (such as rough reaming → fine reaming → honing) is completed; S5: Processing completion and unloading: After all processes are completed, the machine tool alarm prompts, loosen the adjusting nut (36), remove the horizontal pressure plate (35), and take out the processed workpiece.

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