Special-shaped cylinder part drilling clamp
By designing a fixed frame and a lifting mechanism for irregularly shaped cylindrical parts, and using hydraulic cylinders and arc-shaped support plates, the accurate positioning and clamping of irregularly shaped cylindrical parts are achieved, solving the problem of cumbersome clamping of existing fixtures and improving drilling accuracy and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
Existing drilling fixtures for irregular cylindrical parts have a cumbersome clamping process, are difficult to clamp, and require manual assistance, which affects drilling accuracy.
A fixture was designed that includes a fixed frame, a part clamping mechanism, and a lifting mechanism for irregular cylindrical parts. The fixture is horizontally lifted by the flat positions at both ends of the outer side of the irregular cylindrical parts, and accurately reaches the clamping position by using a hydraulic cylinder and an arc-shaped support plate, thus reducing the difficulty of clamping.
It simplifies the clamping process, reduces clamping and alignment difficulties, and improves drilling accuracy and ease of use.
Smart Images

Figure CN224073848U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irregular part processing technology, and in particular to a drilling fixture for irregular cylindrical parts. Background Technology
[0002] Before circumferential drilling, irregularly shaped cylindrical parts need to be clamped and fixed to prevent them from shifting or misaligning during the drilling process, which would affect the drilling accuracy.
[0003] A search revealed that utility model patent CN21773980 U discloses a multi-faceted processing fixture for irregularly shaped rollers, comprising left and right fixed supports, left and right fixed clamping plates, and a rotating shaft. Circular bosses are provided on two opposite surfaces of the left and right fixed clamping plates. The rotating shaft passes through the center of the left and right fixed clamping plates and is fixedly connected to the left fixed clamping plate. The right fixed clamping plate is movably sleeved on the rotating shaft. Mounting holes for the rotating shaft to pass through are provided on the left and right fixed supports, and the rotating shaft is supported between the left and right fixed supports.
[0004] Although the above-mentioned fixture can clamp and fix irregular cylindrical parts, the overall clamping process is too cumbersome, the clamping difficulty is high, and a lot of manual assistance is required to align the circular boss during the clamping process, which is not convenient for actual use.
[0005] Therefore, it is necessary to invent a drilling fixture for irregularly shaped cylindrical parts to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a drilling fixture for irregular cylindrical parts. When clamping irregular cylindrical parts, the fixture can be horizontally lifted by the flat positions at both ends of the outer side of the irregular cylindrical parts, so that they can be accurately placed in the clamping position, reducing the difficulty of clamping and subsequent alignment. It is more convenient to use in practice, thus solving the problems mentioned in the background art, such as the overall clamping process being too cumbersome, the clamping difficulty being high, and the need for a lot of manual assistance to achieve the alignment operation of the circular boss, which is not convenient to use in practice.
[0007] According to one aspect of this disclosure, the following technical solution is provided: a drilling fixture for irregularly shaped cylindrical parts, comprising:
[0008] A fixing frame is used to install and fix the part clamping mechanism and the irregular cylindrical part lifting mechanism;
[0009] A part clamping mechanism, wherein the part clamping mechanism is used to clamp and fix the raised irregular cylindrical part; and
[0010] The irregular cylindrical part lifting mechanism is provided in two sets. Each set of the irregular cylindrical part lifting mechanism includes a guide rod B, an adjusting screw, a manual turntable, a moving block, a hydraulic cylinder and an arc-shaped support plate.
[0011] The guide rod B is fixedly installed inside the U-shaped frame. The adjusting screw is rotatably nested inside the U-shaped frame via a bearing and is parallel to the guide rod B. The manual turntable is fixedly installed on the top of the adjusting screw and located outside the U-shaped frame. The moving block is slidably sleeved on the outside of the guide rod B and is also sleeved on the outside of the adjusting screw. The hydraulic cylinder is fixedly installed at the bottom of the moving block and located inside the clearance groove. The arc-shaped support plate is fixedly installed at the top of the output shaft of the hydraulic cylinder.
[0012] According to at least one embodiment of the present disclosure, the irregular cylindrical part drilling fixture includes a fixing plate and side plates. The fixing plate is provided with mounting portions having mounting holes at all four corners. There are two side plates, which are respectively fixedly disposed at the top two ends of the fixing plate.
[0013] According to at least one embodiment of the present disclosure, the irregular cylindrical part drilling fixture further includes a U-shaped frame and a clearance groove. The U-shaped frame is located directly above the fixing plate, the clearance groove is opened at the center of the top of the U-shaped frame, and the four corners of the bottom of the U-shaped frame are all fixedly provided with support legs that are fixedly connected to the fixing plate.
[0014] According to at least one embodiment of the present disclosure, a drilling fixture for irregular cylindrical parts includes a part clamping mechanism comprising a guide rod A, a bidirectional screw and a motor A. The guide rod A is fixedly disposed between two side plates. The bidirectional screw is rotatably nested between the two side plates via bearings and is disposed parallel to the guide rod A. The motor A is fixedly disposed on the outer side of the adjacent side plate and is drively connected to the bidirectional screw.
[0015] According to at least one embodiment of the present disclosure, the part clamping mechanism further includes two sets of symmetrically arranged clamping components. Each set of clamping components includes a movable plate. The movable plate is slidably sleeved on the outer end of the guide rod A and drively sleeved on the outer end of the bidirectional screw. A motor B is fixedly arranged on the top outer side of the movable plate. A clamping plate is arranged on the top inner side of the movable plate and fixedly connected to the output shaft of the motor B. A positioning plate is fixedly arranged on the inner side of the clamping plate.
[0016] The technical effects and advantages of this utility model are as follows:
[0017] This invention incorporates a lifting mechanism for irregularly shaped cylindrical parts. This mechanism is adjusted according to the flatness of the cylindrical part's surface. Specifically, rotating a manual turntable causes it to move a movable block guided by guide rod B via an adjusting screw. As the movable block moves, a hydraulic cylinder moves the arc-shaped support plates synchronously. This process is repeated twice, aligning the two arc-shaped support plates with the flatness of the two outer ends of the cylindrical part. The cylindrical part is then placed on top of the two arc-shaped support plates, at which point the flatness of the two outer ends of the cylindrical part is achieved. Do not allow the part to align with the inner sides of the two curved support plates. Then, use two hydraulic cylinders to move the two curved support plates upwards synchronously until the shaped cylindrical part reaches the clamping position between the two clamping components. Then, use the part clamping mechanism to clamp the shaped cylindrical part, and the subsequent drilling operation can begin. Compared with the prior art, this utility model can horizontally lift the shaped cylindrical part by using the flat positions at both ends of the outer side when clamping it, so that it can reach the clamping position more accurately, reducing the difficulty of clamping and subsequent alignment, and making it more convenient in actual use. Attached Figure Description
[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0019] Figure 1 This is a schematic diagram of the overall structure of a drilling fixture for irregular cylindrical parts according to one embodiment of the present disclosure.
[0020] Figure 2 This is a schematic diagram of the fixing frame and part clamping mechanism of a drilling jig for irregular cylindrical parts according to one embodiment of the present disclosure.
[0021] Figure 3 This is a schematic diagram of the fixing frame and lifting mechanism of the irregular cylindrical part drilling fixture according to one embodiment of the present disclosure.
[0022] The specific labels in the attached figures are as follows:
[0023] 1. Fixing frame; 11. Fixing plate; 12. Side plate; 13. U-shaped frame; 14. Clearance groove; 15. Support leg;
[0024] 2. Part clamping mechanism; 21. Guide rod A; 22. Bidirectional screw; 23. Motor A; 24. Moving plate; 25. Motor B; 26. Clamping plate; 27. Positioning plate;
[0025] 3. Lifting mechanism for irregular cylindrical parts; 31. Guide rod B; 32. Adjusting screw; 33. Manual turntable; 34. Moving block; 35. Hydraulic cylinder; 36. Arc-shaped support plate. Detailed Implementation
[0026] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0027] Figure 1 This is a schematic diagram of the overall structure of a drilling fixture for irregular cylindrical parts according to one embodiment of the present disclosure.
[0028] Figure 2 This is a schematic diagram of the fixing frame 1 and the part clamping mechanism 2 of a drilling jig for irregular cylindrical parts according to one embodiment of the present disclosure.
[0029] Figure 3 This is a schematic diagram of the fixing frame 1 and the lifting mechanism 3 of the irregular cylindrical part drilling fixture according to one embodiment of the present disclosure.
[0030] like Figures 1-3 As shown, the drilling fixture for irregular cylindrical parts disclosed herein may include components such as a fixing frame 1, a part clamping mechanism 2, and an irregular cylindrical part lifting mechanism 3.
[0031] like Figure 2 and Figure 3 As shown in this disclosure, the fixing frame 1 includes a fixing plate 11, side plates 12, a U-shaped frame 13, and a clearance groove 14. The fixing plate 11 has mounting portions with mounting holes at each of its four corners. There are two side plates 12, which are respectively fixedly mounted at the top ends of the fixing plate 11. The U-shaped frame 13 is located directly above the fixing plate 11. The clearance groove 14 is opened at the top center of the U-shaped frame 13. The bottom four corners of the U-shaped frame 13 are each fixedly mounted with support legs 15 that are fixedly connected to the fixing plate 11.
[0032] like Figure 2As shown, in a preferred embodiment, the part clamping mechanism 2 includes a guide rod A21, a bidirectional screw 22, a motor A23, and two sets of symmetrically arranged clamping assemblies. The guide rod A21 is fixedly disposed between two side plates 12. The bidirectional screw 22 is rotatably nested between the two side plates 12 via bearings and is arranged parallel to the guide rod A21. The motor A23 is fixedly disposed on the outer side of the adjacent side plate 12 and is drivenly connected to the bidirectional screw 22. Each set of clamping assemblies includes a movable plate 24. The movable plate 24 is slidably sleeved on the outer end of the guide rod A21 and drivenly sleeved on the outer end of the bidirectional screw 22. A motor B25 is fixedly disposed on the top outer side of the movable plate 24. A clamping plate 26 is disposed on the top inner side of the movable plate 24 and is fixedly connected to the output shaft of the motor B25. A positioning plate 27 is fixedly disposed on the inner side of the clamping plate 26.
[0033] Therefore, after the irregular cylindrical part arrives at the clamping station between the two clamping components, the motor A23 drives the bidirectional screw 22 to rotate. When the bidirectional screw 22 rotates, it drives the two moving plates 24 guided by the guide rod A21 to move closer to each other. When the moving plates 24 move, the motor B25 drives the clamping plate 26 and the positioning plate 27 to move synchronously until the two positioning plates 27 are respectively inserted into the openings at both ends of the irregular cylindrical part and the two clamping plates 26 are clamped at both ends of the irregular cylindrical part.
[0034] like Figure 3 As shown in this disclosure, the irregular cylindrical part lifting mechanism 3 is provided in two sets. Each set of the irregular cylindrical part lifting mechanism 3 includes a guide rod B31, an adjusting screw 32, a manual turntable 33, a moving block 34, a hydraulic cylinder 35, and an arc-shaped support plate 36. The guide rod B31 is fixedly installed inside the U-shaped frame 13. The adjusting screw 32 is rotatably nested inside the U-shaped frame 13 via a bearing and is parallel to the guide rod B31. The manual turntable 33 is fixedly installed at the top of the adjusting screw 32 and located outside the U-shaped frame 13. The moving block 34 is slidably sleeved outside the guide rod B31 and drively sleeved outside the adjusting screw 32. The hydraulic cylinder 35 is fixedly installed at the bottom of the moving block 34 and located inside the clearance groove 14. The arc-shaped support plate 36 is fixedly installed at the top of the output shaft of the hydraulic cylinder 35.
[0035] Therefore, to facilitate the adjustment of the lifting mechanism 3 for the irregular cylindrical part according to the flat position of the surface of the irregular cylindrical part, the manual turntable 33 is rotated, which in turn causes the manual turntable 33 to drive the moving block 34 guided by the guide rod B31 to move through the adjusting screw 32. When the moving block 34 moves, the arc-shaped support plate 36 moves synchronously through the hydraulic cylinder 35. The above operation is repeated twice, so that the two arc-shaped support plates 36 correspond to the flat positions of the two outer ends of the irregular cylindrical part, respectively. Then, the irregular cylindrical part is placed on top of the two arc-shaped support plates 36. At this time, the flat positions of the two outer ends of the irregular cylindrical part are... The parts are respectively attached to the inner sides of the two arc-shaped support plates 36, and then the two hydraulic cylinders 35 drive the two arc-shaped support plates 36 to move upward synchronously until the irregular cylindrical part reaches the clamping position between the two clamping components. Then, the part clamping mechanism 2 completes the clamping of the irregular cylindrical part, and the subsequent drilling operation can begin. Compared with the existing technology, when clamping the irregular cylindrical part, it can be horizontally lifted by the flat positions of the two outer ends of the irregular cylindrical part, so that it can reach the clamping position more accurately, reducing the clamping difficulty and the subsequent alignment difficulty, and making it more convenient in actual use.
[0036] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.
[0037] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A profiled barrel part drilling jig, characterized by, The utility model relates to a kind of special-shaped cylinder lifting device, including: fixed frame is used to install and fix part clamping mechanism and special-shaped cylinder part lifting mechanism;Part clamping mechanism is used to clamp and fix the special-shaped cylinder part after lifting;And special-shaped cylinder part lifting mechanism is provided with two groups, any one group of the special-shaped cylinder part lifting mechanism includes guide rod B, adjusting screw rod, hand-operated turntable, moving block, hydraulic cylinder and arc-shaped supporting plate. The guide rod B is fixedly arranged inside the U-shaped frame, the adjusting screw rod is rotatably nested in the U-shaped frame inside and arranged parallel to the guide rod B, the hand-operated turntable is fixedly arranged on the top of the adjusting screw rod and located outside the U-shaped frame, the moving block is slidingly sleeved outside the guide rod B and transmissionally sleeved outside the adjusting screw rod, the hydraulic cylinder is fixedly arranged on the bottom of the moving block and located inside the avoiding groove, and the arc-shaped supporting plate is fixedly arranged on the top end of the output shaft of the hydraulic cylinder. The fixed frame includes a fixed plate and side plates, the fixed plate has mounting portions with mounting holes at four corners, and the side plates are provided with two, and the two side plates are fixedly arranged at both ends of the top of the fixed plate. The fixed frame further includes a U-shaped frame and an avoiding groove, the U-shaped frame is located directly above the fixed plate, the avoiding groove is opened at the center of the top of the U-shaped frame, and the U-shaped frame has four legs fixedly arranged at the bottom and connected with the fixed plate. The part clamping mechanism includes guide rod A, bidirectional screw rod and motor A, the guide rod A is fixedly arranged between the two side plates, the bidirectional screw rod is rotatably nested between the two side plates and arranged parallel to the guide rod A, and the motor A is fixedly arranged outside the adjacent side plate and transmissionally connected with the bidirectional screw rod.
2. The profiled barrel part drilling jig according to claim 1, characterized in that: The part clamping mechanism further includes two groups of symmetrically arranged clamping assemblies, any one group of the clamping assemblies includes a moving plate, the moving plate is slidingly sleeved outside the end of the guide rod A and transmissionally sleeved outside the end of the bidirectional screw rod, the moving plate has a motor B fixedly arranged on the top outside, the moving plate has a clamping plate fixedly arranged on the top inside and connected with the output shaft of the motor B, and the clamping plate has a positioning disc fixedly arranged inside.
3. The profiled barrel part drilling jig according to claim 2, characterized in that: 4. The profiled barrel part drilling jig according to claim 3, characterized in that: 5. The profiled barrel part drilling jig according to claim 4, characterized in that: