Printing roller blank turning device

Abstract

The utility model relates to a plate roller blank turning device, and relates to the field of machining equipment. The plate roller lathe comprises a lathe body, a transverse plate roller workpiece is arranged on the lathe body, the lathe body is provided with a three-jaw chuck for clamping the left end of the plate roller workpiece, a front guide rail and a rear guide rail are arranged at the upper end of the lathe body, and a clamping mechanism for clamping and supporting the right end of the plate roller workpiece is clamped on the guide rails. When a printing roller workpiece is turned, the left end of the printing roller workpiece is clamped through the three-jaw chuck, the printing roller workpiece is supported in the middle through the two supporting rollers by adjusting the height of the fixing frame, and the pressing rod is driven by rotating the lifting screw to descend to be pressed on the upper side of the printing roller workpiece, so that rotatable clamping of the printing roller workpiece is completed. And turning supporting of the plate roller workpiece is more stable, the plate roller workpiece is better supported while turning of the plate roller workpiece is not affected, so that radial run-out of the plate roller workpiece is effectively prevented, and the machining precision of the plate roller workpiece is improved.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, and in particular to a turning device for printing roll blanks. Background Technology

[0002] In the printing industry, printing rollers are key components, and their manufacturing precision directly affects printing quality and efficiency. The printing rollers are manufactured and processed by turning them on a lathe to achieve the required dimensions.

[0003] When machining the printing roller, only one end of the roller can be clamped by a three-jaw chuck. However, due to the relatively long length of the printing roller, the end away from the three-jaw chuck will deform and radial runout during machining, thus affecting the machining accuracy of the printing roller.

[0004] Existing lathes only use the top cone on the tailstock to tighten one end of the printing roller to reduce its runout. However, this tightening method cannot provide stable and precise support for the printing roller. It is easy for the roller to detach from the top cone when it runs out of control or for the top cone to become misaligned when tightened, making it difficult to guarantee the machining accuracy of the printing roller. Utility Model Content

[0005] To address the issue that existing lathes cannot provide stable support for printing rollers, thus making it difficult to guarantee the machining accuracy of printing rollers, this application provides a printing roller blank turning device.

[0006] The technical solution of the printing roll blank turning device provided in this application is as follows:

[0007] A lathe body is provided for machining printing roller blanks. A transverse printing roller workpiece is mounted on the lathe body, and a three-jaw chuck is provided on the lathe body to clamp the left end of the printing roller workpiece. Two guide rails are provided at the upper end of the lathe body, and a clamping mechanism for clamping and supporting the right end of the printing roller workpiece is mounted on the guide rails. The clamping mechanism includes a sliding seat slidably mounted on the guide rails. A support frame is fixed to the middle of the upper surface of the sliding seat, and a lifting and adjusting fixed frame is installed at the upper end of the support frame. Two support rollers for rotating and supporting the printing roller workpiece are installed at the upper end of the fixed frame. Adjusting screws for driving the lifting and lowering of the fixed frame are installed on both the front and rear sides of the support frame. A vertical column is fixed to the upper surface of the sliding seat near the rear end, and a pressure rod extending forward is fitted onto the column. A fixed plate is fixed to the upper end of the column, and a lifting screw for driving the lifting and lowering of the pressure rod is rotatably mounted on the fixed plate.

[0008] By adopting the above technical solution, when machining the printing roller workpiece, the left end of the workpiece is clamped by a three-jaw chuck, and the height of the fixing frame is adjusted so that the two support rollers support the workpiece in the middle. The pressure rod is driven to descend and press against the upper side of the workpiece by rotating the lifting screw, thus completing the rotatable clamping of the workpiece. This provides more stable support for the machining of the printing roller workpiece, and provides better support without affecting the machining of the workpiece, thereby effectively preventing radial runout of the workpiece and improving the machining accuracy of the workpiece.

[0009] Optionally, the fixed frame includes a lifting plate, a rotating bracket for rotating the support roller is fixed on the upper surface of the lifting plate, and a lifting rod is fixed at the center of the lower surface of the lifting plate. Connection holes are provided near the front and rear ends of the lifting plate.

[0010] By adopting the above technical solution, the fixed frame is installed on the support roller by rotating bracket, thereby realizing the rotational support of the support roller on the printing roller workpiece.

[0011] Optionally, the support frame includes a sleeve rod fixed on the sliding seat, a support plate fixed at the upper end of the sleeve rod, and adjustment screw holes are provided near both the front and rear ends of the support plate. A guide opening extending into the sleeve rod is provided at the center of the upper surface of the support plate.

[0012] By adopting the above technical solution, the support frame is used for the insertion and lifting guidance of the lifting rod through the guide port, and the lifting plate is driven to move up and down through the cooperation of the adjusting screw hole on the support plate and the adjusting screw.

[0013] Optionally, a plug is fixed to the upper end of the adjusting screw, and a fixing screw is fixed to the upper end of the plug through the connecting hole, while a rotating handle is fixed to the lower end of the adjusting screw through the adjusting screw hole.

[0014] By adopting the above technical solution, the plug at the upper end of the adjusting screw passes through the connecting hole and connects with the fixing screw, thereby realizing the rotational connection between the upper end of the adjusting screw and the lifting plate.

[0015] Optionally, the rear end of the pressure rod is fixed with a sliding sleeve fitted on the column, and the rear end of the sliding sleeve is fixed with an adjusting block, which has a threaded through hole that mates with the lifting screw.

[0016] By adopting the above technical solution, the pressure rod is slidably installed on the column through the sliding sleeve, and the lifting adjustment is achieved with the lifting screw through the threaded through hole on the adjusting block.

[0017] Optionally, a fixing screw hole is provided at the upper end of the column, and a lock hole is provided near the lower end of the column.

[0018] By adopting the above technical solution, the column is used for locking during installation on the sliding seat through the opening of the locking hole.

[0019] Optionally, the lower side of the fixing plate has a slot for fitting onto the column, and the fixing plate is fixedly connected to the column by screws. The upper surface of the fixing plate has an installation groove, and a bearing is installed inside the installation groove. A clamping screw for pressing the bearing is fixed on the upper surface of the fixing plate.

[0020] By adopting the above technical solution, the fixing plate is positioned on the column using a slotted sleeve and fixed with screws. At the same time, the upper end of the lifting screw is rotated and installed by the fixed bearing.

[0021] Optionally, a guide groove is provided on the lower side of the slide seat, and an adjusting screw is threadedly installed on the upper surface of the slide seat at the position corresponding to the guide groove. A slot is provided on the upper surface of the slide seat near the rear end, and a locking screw is threadedly installed on the rear end of the slide seat at the position corresponding to the slot. A locking pin is fixed at the end of the locking screw.

[0022] By adopting the above technical solution, the sliding seat is slidably mounted on the guide rail through the guide slot, and the position of the sliding seat is locked and fixed by adjusting the adjusting screw.

[0023] In summary, this application has the following beneficial technical effects:

[0024] When machining the printing roller workpiece, the left end of the workpiece is clamped by a three-jaw chuck, and the height of the fixing frame is adjusted so that the two support rollers support the workpiece in the middle. The lifting screw is rotated to drive the pressure rod to descend and press on the upper side of the workpiece, thus completing the rotatable clamping of the workpiece. This provides more stable support for the machining of the workpiece and provides better support without affecting the machining process, effectively preventing radial runout of the workpiece and thus improving the machining accuracy of the workpiece. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the clamping mechanism in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram of the fixing frame in the embodiments of this application;

[0028] Figure 4 This is a schematic diagram of the support frame in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the adjusting lead screw in an embodiment of this application;

[0030] Figure 6This is a schematic diagram of the compression bar in the embodiments of this application;

[0031] Figure 7 This is a schematic diagram of the column in the embodiments of this application;

[0032] Figure 8 This is a schematic diagram of the fixing plate in an embodiment of this application;

[0033] Figure 9 This is a schematic diagram of the sliding seat in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Lathe body; 2. Three-jaw chuck; 3. Roller workpiece; 4. Clamping mechanism; 41. Fixing plate; 411. Clamping screw; 412. Bearing; 413. Mounting slot; 414. Sleeve slot; 42. Column; 421. Fixing screw hole; 422. Lock hole; 43. Pressure rod; 431. Sliding sleeve; 432. Adjusting block; 44. Support roller; 45. Support frame; 451. Sleeve rod; 452. Support plate; 4 53. Guide port; 454. Adjusting screw hole; 46. Sliding seat; 461. Locking screw; 462. Locking pin; 463. Slot; 464. Adjusting screw; 465. Guide groove; 47. Adjusting screw; 471. Rotating handle; 472. Plug; 473. Fixing screw; 48. Fixing bracket; 481. Rotating bracket; 482. Connecting hole; 483. Lifting plate; 484. Lifting rod; 49. Lifting screw; 5. Guide rail. Detailed Implementation

[0035] The present application is further described in detail below with reference to the accompanying drawings.

[0036] This application discloses a turning apparatus for printing roll blanks. (Refer to...) Figure 1 The lathe body 1 includes a lathe body 1 on which a transverse printing roller workpiece 3 is mounted. The lathe body 1 is also equipped with a three-jaw chuck 2 for clamping the left end of the printing roller workpiece 3. The upper end of the lathe body 1 is equipped with two guide rails 5, one in front and one behind. The guide rails 5 are fitted with a clamping mechanism 4 for clamping and supporting the right end of the printing roller workpiece 3. When the printing roller workpiece 3 is being machined, the three-jaw chuck 2 clamps the printing roller workpiece 3, and the clamping mechanism 4 clamps and supports the right end of the printing roller workpiece 3, thereby effectively preventing radial runout when the printing roller workpiece 3 rotates at high speed.

[0037] Reference Figure 2The clamping mechanism 4 includes a sliding seat 46 that is slidably mounted on a guide rail 5. A support frame 45 is fixed to the middle part of the upper surface of the sliding seat 46, and a lifting and adjusting fixed frame 48 is installed at the upper end of the support frame 45. Two support rollers 44 are installed at the upper end of the fixed frame 48 to support the rotation of the printing roller workpiece 3. Adjusting screws 47 that drive the fixed frame 48 to rise and fall are installed on both the front and rear sides of the support frame 45. By rotating the adjusting screws 47, the fixed frame 48 is driven to adjust its height, so that the support rollers 44 can better adapt to the height of the printing roller workpiece 3. A vertical column 42 is fixed to the upper surface of the sliding seat 46 near the rear end, and a pressure rod 43 extending forward is fitted on the column 42. A fixing plate 41 is fixed to the upper end of 42, and a lifting screw 49 that drives the pressure rod 43 to rise and fall is rotatably installed on the fixing plate 41. When machining the printing roller workpiece 3, the left end of the printing roller workpiece 3 is clamped by the three-jaw chuck 2, and the height of the fixing frame 48 is adjusted so that the two support rollers 44 support the printing roller workpiece 3 in the middle. The lifting screw 49 is rotated to drive the pressure rod 43 to fall and press on the upper side of the printing roller workpiece 3, thereby completing the rotatable clamping of the printing roller workpiece 3. The machining support of the printing roller workpiece 3 is more stable. While not affecting the machining of the printing roller workpiece 3, it provides better support and effectively prevents the radial runout of the printing roller workpiece 3, thereby improving the machining accuracy of the printing roller workpiece 3.

[0038] Reference Figure 3 The fixed frame 48 includes a lifting plate 483. Two adjusting screws 47 are screwed onto the support plate 452 of the support frame 45. The lifting plate 483 is adjusted by raising and lowering the top of the adjusting screws 47. A rotating bracket 481 is fixed on the upper surface of the lifting plate 483 to rotate the support roller 44. The fixed frame 48 rotates the support roller 44 through the rotating bracket 481, thereby realizing the rotational support of the support roller 44 on the printing roller workpiece 3. A lifting rod 484 is fixed at the center of the lower surface of the lifting plate 483. The lifting plate 483 can be raised and lowered on the support frame 45 by means of the lifting rod 484. Connection holes 482 are opened near the front and rear ends of the lifting plate 483. The lifting plate 483 is rotatably connected to the adjusting screws 47 through the connection holes 482.

[0039] Reference Figure 4 The support frame 45 includes a sleeve rod 451 fixed on the sliding seat 46. A support plate 452 is fixed to the upper end of the sleeve rod 451. The support plate 452 has adjusting screw holes 454 near both the front and rear ends. A guide opening 453 extending into the sleeve rod 451 is opened at the center of the upper surface of the support plate 452. The lifting plate 483 is driven to rise and fall through the cooperation of the adjusting screw hole 454 on the support plate 452 and the adjusting screw 47. The support frame 45 is used for the insertion and lifting guidance of the lifting rod 484 through the guide opening 453.

[0040] Reference Figure 5 The upper end of the adjusting screw 47 is fixed with a plug 472, and the upper end of the plug 472 passes through the connecting hole 482 and is fixed with a fixing screw 473. The plug 472 at the upper end of the adjusting screw 47 passes through the connecting hole 482 and is connected to the fixing screw 473, thereby realizing the rotational connection between the upper end of the adjusting screw 47 and the lifting plate 483. The lower end of the adjusting screw 47 passes through the adjusting screw hole 454 and is fixed with a handle 471, which facilitates the rotational adjustment of the adjusting screw 47.

[0041] Reference Figure 6 The rear end of the pressure rod 43 is fixed with a sliding sleeve 431 fitted on the column 42, and the rear end of the sliding sleeve 431 is fixed with an adjusting block 432. The adjusting block 432 has a threaded through hole that cooperates with the lifting screw 49. The pressure rod 43 is slidably installed on the column 42 through the sliding sleeve 431, and the lifting adjustment cooperation with the lifting screw 49 is achieved through the threaded through hole on the adjusting block 432.

[0042] Reference Figure 7 The upper end of the column 42 is provided with a fixing screw hole 421. The column 42 is fixed to the fixing plate 41 by screws through the fixing screw hole 421. The column 42 is provided with a locking hole 422 near the lower end. The column 42 is used for locking when it is installed on the sliding seat 46 through the locking hole 422.

[0043] Reference Figure 8 The lower side of the fixing plate 41 is provided with a sleeve groove 414 that fits onto the column 42, and the fixing plate 41 is fixedly connected to the column 42 by screws. The upper surface of the fixing plate 41 is provided with an installation groove 413, and a bearing 412 is installed inside the installation groove 413. The fixing plate 41 is positioned and fitted onto the column 42 by the sleeve groove 414 and fixed by screws. At the same time, the upper end of the lifting screw 49 is rotated and installed by the fixed bearing 412. The upper surface of the fixing plate 41 is fixed with a clamping screw 411 that clamps the bearing 412. After the bearing 412 is positioned and installed, the installation groove 413 is fixed to the fixing plate 41 by the clamping screw 411, so that the tail of the clamping screw 411 is pressed against the edge of the bearing 412 for clamping and limiting.

[0044] Reference Figure 9 The lower side of the sliding seat 46 is provided with a guide groove 465, and an adjusting screw 464 is threadedly installed on the upper surface of the sliding seat 46 at the position corresponding to the guide groove 465. The sliding seat 46 is slidably mounted on the guide rail 5 through the guide groove 465, and the position of the sliding seat 46 is locked and fixed after adjustment by the adjusting screw 464.

[0045] The upper surface of the sliding seat 46 has a slot 463 near the rear end, and a locking screw 461 is threadedly installed at the rear end of the sliding seat 46 corresponding to the slot 463. A locking pin 462 is fixed at the end of the locking screw 461. The sliding seat 46 uses the slot 463 to position and insert the column 42, and then the locking pin 462 is inserted into the column 42 by turning the locking screw 461, thereby completing the positioning, installation and locking of the column 42.

[0046] The implementation principle of the printing roller blank turning processing device in this application embodiment is as follows: When turning the printing roller workpiece 3, the left end of the printing roller workpiece 3 is clamped and fixed on the three-jaw chuck 2. At this time, the sliding seat 46 is moved so that the support roller 44 is located under the right end of the printing roller workpiece 3. Then, the adjusting screw 464 is turned to lock and fix the sliding seat 46. At the same time, the two adjusting screws 47 are turned to adjust the height of the fixing frame 48 so that the two support rollers 44 support the right end of the printing roller workpiece 3. Then, the lifting screw 49 is turned to drive the adjusting block 432 to drive the sliding sleeve 431 and the pressure rod 43 to descend until the pressure rod 43 abuts against the printing roller workpiece 3, thereby completing the support and clamping of the printing roller workpiece 3.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lathe body (1) for machining printing roller blanks, comprising a lathe body (1), wherein a transverse printing roller workpiece (3) is disposed on the lathe body (1), and the lathe body (1) is provided with a three-jaw chuck (2) for clamping the left end of the printing roller workpiece (3); and two guide rails (5) are disposed at the upper end of the lathe body (1), characterized in that: The guide rail (5) is fitted with a clamping mechanism (4) for clamping and supporting the right end of the printing roller workpiece (3). The clamping mechanism (4) includes a sliding seat (46) that is slidably clamped on the guide rail (5). A support frame (45) is fixed in the middle of the upper surface of the sliding seat (46). A fixed frame (48) that can be adjusted for lifting is installed at the upper end of the support frame (45). Two support rollers (44) that support the printing roller workpiece (3) for rotation are installed at the upper end of the fixed frame (48). Adjusting screws (47) that drive the fixed frame (48) to lift are installed on both the front and rear sides of the support frame (45). A vertical column (42) is fixed near the rear end of the upper surface of the sliding seat (46). A pressure rod (43) that extends forward is fitted on the column (42). A fixing plate (41) is fixed at the upper end of the column (42). A lifting screw (49) that drives the pressure rod (43) to lift is rotatably installed on the fixing plate (41).

2. The printing roller blank turning device according to claim 1, characterized in that: The fixed frame (48) includes a lifting plate (483), a rotating bracket (481) for rotating the support roller (44) is fixed on the upper surface of the lifting plate (483), and a lifting rod (484) is fixed at the center of the lower surface of the lifting plate (483). The lifting plate (483) has connecting holes (482) near both the front and rear ends.

3. The printing roller blank turning device according to claim 2, characterized in that: The support frame (45) includes a sleeve rod (451) fixed on a sliding seat (46). A support plate (452) is fixed at the upper end of the sleeve rod (451), and the support plate (452) has adjustment screw holes (454) near both the front and rear ends. A guide opening (453) extending into the sleeve rod (451) is opened at the center of the upper surface of the support plate (452).

4. The printing roller blank turning device according to claim 3, characterized in that: The upper end of the adjusting screw (47) is fixed with a plug (472), and the upper end of the plug (472) is fixed with a fixing screw (473) through the connecting hole (482). The lower end of the adjusting screw (47) is fixed with a handle (471) through the adjusting screw hole (454).

5. The printing roller blank turning device according to claim 4, characterized in that: The rear end of the pressure rod (43) is fixed with a sliding sleeve (431) fitted on the column (42), and the rear end of the sliding sleeve (431) is fixed with an adjusting block (432). The adjusting block (432) has a threaded through hole that cooperates with the lifting screw (49).

6. The printing roller blank turning device according to claim 5, characterized in that: The upper end of the column (42) is provided with a fixing screw hole (421), and the lower end of the column (42) is provided with a lock hole (422).

7. The printing roller blank turning device according to claim 6, characterized in that: The lower side of the fixing plate (41) is provided with a sleeve groove (414) that is fitted onto the column (42), and the fixing plate (41) is fixedly connected to the column (42) by screws. The upper surface of the fixing plate (41) is provided with an installation groove (413), and a bearing (412) is installed inside the installation groove (413). The upper surface of the fixing plate (41) is fixed with a clamping screw (411) for clamping the bearing (412).

8. The printing roller blank turning device according to claim 7, characterized in that: The sliding seat (46) has a guide groove (465) on its lower side, and an adjusting screw (464) is threadedly installed on the upper surface of the sliding seat (46) at the position corresponding to the guide groove (465). The upper surface of the sliding seat (46) has a slot (463) near the rear end, and a locking screw (461) is threadedly installed on the rear end of the sliding seat (46) at the position corresponding to the slot (463). A locking pin (462) is fixed at the end of the locking screw (461).

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