Leveling and clamping mechanism for assisting in the machining of pistons
Patent Information
- Application Number
- CN202522062151.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-25
Smart Images
Figure CN224880052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of piston processing auxiliary devices, and in particular to a leveling and clamping mechanism for assisting piston processing. Background Technology
[0002] In piston machining, the piston's levelness and stability have a crucial impact on machining accuracy. Currently, mainstream piston machining tooling fixtures on the market still have many technical defects, making it difficult to meet the requirements of high-precision machining: First, traditional equipment relies heavily on manual judgment of piston level based on experience, lacking a visual and precise adjustment structure. The adjustment process lacks clear scale references, making it prone to jamming or over-adjustment, causing the piston level deviation to exceed the machining tolerance range, which in turn leads to problems such as uneven piston surface thickness and out-of-tolerance coaxiality. Second, some clamping mechanisms are manually driven, making it difficult to control the clamping force. This can easily result in either too loose clamping causing workpiece displacement during machining, or too tight clamping causing piston surface deformation. Meanwhile, the contact points between the clamping components and the piston are mostly fixed structures, which cannot be adapted to pistons of different specifications. When changing the processing model, the entire clamping component needs to be replaced, which is cumbersome and has high equipment investment costs. Thirdly, metal chips and coolant are generated during piston processing. The existing mechanism lacks effective sealing protection for moving parts such as connecting shafts. Chips and coolant can easily enter the gaps between components, causing the connecting shaft to rust and jam, shortening the service life of the mechanism. In addition, the existing fixtures are mostly designed to adapt to a single specification of piston. When changing to process different models of pistons, the entire fixture needs to be replaced, which has poor versatility and increases the equipment investment costs for enterprises. Utility Model Content
[0003] To address some of the problems existing in the prior art, this utility model provides a leveling and clamping mechanism to assist in piston processing. By integrating leveling and clamping functions, this mechanism achieves precise positioning, level adjustment, and stable fixation of the piston to be processed, thereby improving processing efficiency and ensuring high-precision piston processing. It is suitable for batch or customized piston processing scenarios.
[0004] To achieve the above objectives, this utility model provides a leveling and clamping mechanism for assisting piston processing, comprising a mechanism body, a base plate, a leveling component, a C-shaped plate, and a clamping component mounted on the base plate; the leveling component includes a cover plate with a product placement slot adapted to the piston shape for positioning the piston to be processed and adjusting the piston's level before processing; the C-shaped plates are symmetrically arranged, and the clamping component is installed inside the C-shaped plates with its output end facing the product placement slot for clamping and fixing the piston within the product placement slot; a connecting plate is provided on the side end of the clamping component, and a reinforcing connecting block is installed between the connecting plate and the base plate to enhance the overall structural strength.
[0005] In operation, the piston to be processed is first positioned in the product placement slot on the cover plate of the leveling assembly. Based on the piston's levelness, the adjusting knob on the leveling connecting plate is rotated. The lower end of the adjusting knob passes through the leveling connecting plate and is threadedly connected to the connecting column. Under the action of the connecting spring, the leveling connecting plate slides through the guide groove on the inner surface of the guide rod, achieving height adjustment. The circumferentially engraved scale markings on the upper surface of the adjusting knob visually display the height adjustment amount, thus achieving precise control of the piston's levelness. Then, the drive motor in the clamping assembly is started. The output shaft of the drive motor drives the product clamping block to move horizontally within the slide groove via a coupling. The product clamping block is aligned with the product placement slot. The central axes are aligned horizontally, enabling automatic clamping of the piston within the product placement slot. A stop at the end of the slide limits the movement range of the product clamping block. An annular sealing block at the outer end of the connecting shaft maintains a seal throughout the shaft's rotation, effectively blocking metal chips and coolant generated during piston processing. The anti-slip pad on the end face of the product clamping block facing the product placement slot features a diamond-shaped anti-slip pattern, increasing friction with the piston surface and preventing rigid contact to avoid indentation. After processing, the drive motor reverses to move the product clamping block in the opposite direction, releasing the piston. If different piston specifications need to be processed subsequently, the cover plate or product clamping block can be disassembled and replaced separately.
[0006] The beneficial effects of this utility model are as follows: By integrating the leveling component and the clamping component, the leveling and clamping of the piston before processing are integrated into one operation, eliminating the need to separate processes, significantly shortening the workpiece clamping time, and improving processing efficiency; in the leveling component, the circumferential scale markings of the adjustment knob can intuitively display the height adjustment amount, and with the sliding limit of the guide rod and guide groove, as well as the buffer support of the connecting spring on the leveling connecting plate, the piston level can be precisely controlled, avoiding the experience error of manual adjustment and ensuring the consistency of the processing benchmark; the clamping component is driven by a symmetrically arranged drive motor, and through the threaded connection between the connecting shaft and the product clamping block, combined with the matching clearance of the slide groove ≤0.05mm, the piston can be automatically and evenly clamped, and the stop block can effectively limit the movement range of the product clamping block, preventing over-clamping from causing the piston to malfunction. The piston is deformable; both the clamping block and the cover plate can be disassembled and replaced individually, allowing for quick adaptation to different piston specifications, significantly improving the versatility of the mechanism and reducing equipment replacement costs for processing multiple piston models; the oil-resistant elastic sealing block at the outer end of the connecting shaft effectively prevents metal chips and coolant from entering the gaps between moving parts, avoiding component corrosion and jamming, and extending the service life of the mechanism; the anti-slip soft pad on the clamping block increases the friction with the piston surface, preventing piston displacement caused by processing vibration, and also avoids piston surface indentations caused by rigid contact, ensuring the appearance quality of the workpiece; in addition, the reinforced connecting block between the connecting plate and the base plate enhances the overall structure's load-bearing capacity and vibration resistance, preventing structural deformation during long-term use, further ensuring overall stability, and effectively improving the finished product qualification rate and processing quality of piston processing.
[0007] As a further improvement of this utility model, in order to ensure the stability and accuracy of the leveling connecting plate's lifting and lowering, the leveling assembly further includes a connecting column, a fixed connecting block, and a leveling connecting plate; the bottom end of the connecting column is provided with a base mounting block and is detachably connected to the base plate through the base mounting block; a connecting spring is installed on the fixed connecting block and abuts against the lower surface of the bottom end of the leveling connecting plate; an adjustment knob is provided on the leveling connecting plate, the lower end of which passes through the leveling connecting plate and is threadedly connected to the connecting column; a guide rod is also installed on the base plate, and a guide groove is provided on the inner surface of the guide rod; the leveling connecting plate is slidably connected to the guide rod through the guide groove, and the adjustment knob rotates to drive the leveling connecting plate to lift and lower along the direction of the guide groove.
[0008] As a further improvement of this utility model, in order to significantly improve the precise control of piston level and meet the requirements of high-precision machining for datum consistency, the upper surface of the adjustment knob is engraved with scale markings along the circumference, which are used to intuitively display the height adjustment amount of the leveling connecting plate, thereby achieving precise control of piston level.
[0009] As a further improvement of this utility model, in order to achieve automatic clamping and releasing of the piston and ensure that the piston position does not shift during the clamping process, the clamping assembly includes a drive motor, a support base, and a product clamping block; the connecting plate is installed on the side end of the support base and fixedly connected to the base plate through a reinforcing connecting block; the support base is provided with a sliding groove extending in the horizontal direction; the product clamping block is slidably embedded in the sliding groove, the clearance between the product clamping block and the sliding groove is ≤0.05mm, and the central axis of the product clamping block and the product placement slot are at the same horizontal level. The drive motor is fixedly installed on one side of the support base, and its output shaft is fixedly connected to one end of the connecting shaft via a coupling; the other end of the connecting shaft is threadedly connected to the product clamping block, and the axis of the connecting shaft is parallel to the extension direction of the slide groove; the drive motor drives the product clamping block to move horizontally reciprocating within the slide groove, thereby realizing the automatic clamping and releasing of the product clamping block on the piston in the product placement slot; a stop block is installed at the end of the slide groove to limit the movement range of the product clamping block; the product clamping block can be individually disassembled and replaced.
[0010] As a further improvement of this utility model, in order to effectively prevent metal chips and coolant generated during piston processing from entering the gap between moving parts and extending service life; at the same time, to increase the friction with the piston surface while avoiding rigid contact with the piston and preventing indentation on the piston surface; the clamping assembly also includes a sealing block disposed at the outer end of the connecting shaft and an anti-slip pad adhered to the end face of the product clamping block facing the product placement slot; the sealing block has an annular structure, and its inner ring is tightly fitted to the outer circumferential surface of the connecting shaft; the sealing block is made of oil-resistant elastic sealing material, which can maintain a sealed state during the rotation of the connecting shaft, effectively preventing metal chips and coolant generated during piston processing; the anti-slip pad is made of highly elastic wear-resistant rubber or silicone, and its surface is provided with diamond-shaped anti-slip texture to increase the friction with the piston surface and avoid rigid contact with the piston, preventing indentation.
[0011] As a further improvement of this utility model, in order to improve the universality and flexibility of the mechanism; and to effectively prevent the piston from axially shifting under high-frequency vibration during processing, thereby reducing the scrap rate caused by shifting; the cover plate is detachably installed on the upper surface of the leveling connecting plate by bolts, and the cover plate can be replaced individually according to different specifications of pistons; the product placement slot forms a limit on the edge of the piston to prevent the piston from axially shifting due to high-frequency vibration during processing. Attached Figure Description
[0012] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a partial structural diagram of the leveling component in this utility model.
[0014] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle.
[0015] Figure 4 This is a schematic diagram of the clamping assembly in this utility model.
[0016] The components include: 1. Mechanism body; 2. Base plate; 3. Clamping assembly; 31. Drive motor; 32. Sealing block; 33. Connecting shaft; 34. Support base; 35. Slide groove; 36. Product clamping block; 37. Stop block; 38. Anti-slip pad; 4. Connecting plate; 5. Leveling assembly; 50. Scale marking; 51. Base mounting block; 52. Connecting column; 53. Adjusting knob; 54. Guide rod; 55. Fixed connecting block; 56. Connecting spring; 57. Leveling connecting plate; 58. Cover plate; 59. Product placement slot; 6. Reinforcing connecting block; and 7. C-shaped plate. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-4 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] like Figure 1-4The diagram illustrates a leveling and clamping mechanism for assisting piston processing. It includes a mechanism body 1, a base plate 2, on which a leveling assembly 5, a C-shaped plate 7, and a clamping assembly 3 are mounted. The leveling assembly 5 includes a cover plate 58 with a product placement slot 59 adapted to the piston's shape, used for positioning the piston to be processed and adjusting its level before processing. The C-shaped plates 7 are symmetrically arranged, and the clamping assembly 3 is installed inside the C-shaped plates 7 with its output end facing the product placement slot 59. The clamping assembly 3 is used to clamp and fix the piston in the product placement slot 59; a connecting plate 4 is provided on the side end of the clamping assembly 3, and a reinforcing connecting block 6 is installed between the connecting plate 4 and the base plate 2 to enhance the overall structural strength; the leveling assembly 5 also includes a connecting column 52, a fixing connecting block 55, and a leveling connecting plate 57; a base mounting block 51 is provided at the bottom end of the connecting column 52 and is detachably connected to the base plate 2 through the base mounting block 51; a connecting spring 56 is installed on the fixing connecting block 55 and connects to the leveling connecting plate. The bottom surface of the leveling connecting plate 57 abuts against the plate; an adjustment knob 53 is provided on the leveling connecting plate 57, the lower end of the adjustment knob 53 passes through the leveling connecting plate 57 and is threadedly connected to the connecting post 52; a guide rod 54 is also installed on the base plate 2, and a guide groove is provided on the inner surface of the guide rod 54; the leveling connecting plate 57 is slidably connected to the guide rod 54 through the guide groove, and the adjustment knob 53 rotates to drive the leveling connecting plate 57 to move up and down along the direction of the guide groove; the upper surface of the adjustment knob 53 is engraved with circumferential markings. The scale marking 50 is used to visually display the height adjustment amount of the leveling connecting plate 57, enabling precise control of the piston's levelness. The clamping assembly 3 includes a drive motor 31, a support base 34, and a product clamping block 36. The connecting plate 4 is installed on the side of the support base 34 and fixedly connected to the base plate 2 via a reinforcing connecting block 6. The support base 34 is provided with a horizontally extending groove 35. The product clamping block 36 is slidably embedded in the groove 35, and the clearance between the product clamping block 36 and the groove 35 is ≤0.The product clamping block 36 is 0.05mm thick, and its central axis is horizontally aligned with the product placement slot 59. The drive motor 31 is fixedly mounted on one side of the support base 34, and its output shaft is fixedly connected to one end of the connecting shaft 33 via a coupling. The other end of the connecting shaft 33 is threadedly connected to the product clamping block 36, and the axis of the connecting shaft 33 is parallel to the extension direction of the slide groove 35. The drive motor 31 drives the product clamping block 36 to move horizontally back and forth within the slide groove 35, thereby achieving automatic clamping and releasing of the piston within the product placement slot 59 by the product clamping block 36. A stop block 37 is installed at the end of the slide groove 35 to limit the movement range of the product clamping block 36. The product clamping block 36 can be individually disassembled and replaced. The clamping assembly 3 also includes a sealing block 32 disposed on the outer end of the connecting shaft 33 and a sealing block 32 attached to the outer end of the product placement slot 59. The product clamping block 36 has an anti-slip pad 38 on the end face facing the product placement slot 59; the sealing block 32 has a ring-shaped structure, with its inner ring tightly fitting the outer circumference of the connecting shaft 33; the sealing block 32 is made of oil-resistant elastic sealing material, which can maintain a sealed state during the rotation of the connecting shaft 33, effectively blocking metal chips and coolant generated during piston processing; the anti-slip pad 38 is made of highly elastic wear-resistant rubber or silicone, with a diamond-shaped anti-slip texture on its surface to increase friction with the piston surface and avoid rigid contact with the piston, preventing indentation; the cover plate 58 is detachably installed on the upper surface of the leveling connecting plate 57 by bolts, and the cover plate 58 can be replaced individually according to different piston specifications; the product placement slot 59 limits the edge of the piston, preventing axial displacement of the piston due to high-frequency vibration during processing.
[0020] In operation, the piston to be processed is first positioned in the product placement slot 59 on the cover plate 58 of the leveling assembly 5. Depending on the piston's levelness, the adjusting knob 53 on the leveling connecting plate 57 is rotated. The lower end of the adjusting knob 53 passes through the leveling connecting plate 57 and is threadedly connected to the connecting post 52. Under the action of the connecting spring 56, the leveling connecting plate 57 slides through the guide groove on the inner surface of the guide rod 54, achieving height adjustment. The scale markings 50 circumferentially engraved on the upper surface of the adjusting knob 53 visually display the height adjustment amount, thus achieving precise control of the piston's levelness. Then, the drive motor 31 in the clamping assembly 3 is activated. The output shaft of the drive motor 31 drives the product clamping block 36 to move horizontally within the slide groove 35 via a coupling. The product clamping block 36 and the product placement slot are then aligned. The central axes of the slots 59 are aligned horizontally, enabling automatic clamping of the piston within the slots 59. The stop 37 at the end of the slide 35 restricts the movement range of the product clamping block 36. The annular sealing block 32 at the outer end of the connecting shaft 33 maintains a seal throughout the rotation of the connecting shaft 33, effectively blocking metal chips and coolant generated during piston processing. The anti-slip pad 38 attached to the end face of the product clamping block 36 facing the product slot 59 has a diamond-shaped anti-slip pattern, which increases the friction with the piston surface and prevents rigid contact with the piston to prevent indentation. After processing, the drive motor 31 reverses to move the product clamping block 36 in the opposite direction to release the piston. If different specifications of pistons need to be processed subsequently, the cover plate 58 or the product clamping block 36 can be disassembled and replaced separately.
[0021] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A leveling and clamping mechanism for assisting piston processing, comprising a mechanism body (1), characterized in that: The main body (1) of the mechanism includes a base plate (2), on which a leveling component (5), a C-shaped plate (7) and a clamping component (3) are installed; the leveling component (5) includes a cover plate (58), on which a product placement slot (59) adapted to the shape of the piston is opened, for positioning the piston to be processed and realizing the level adjustment of the piston before processing; the C-shaped plate (7) is symmetrically arranged, and the clamping component (3) is installed on the inner side of the C-shaped plate (7), and its output end faces the product placement slot (59), for clamping and fixing the piston in the product placement slot (59); a connecting plate (4) is provided on the side end of the clamping component (3), and a reinforcing connecting block (6) is installed between the connecting plate (4) and the base plate (2), for enhancing the overall structural strength.
2. The leveling and clamping mechanism for auxiliary piston processing according to claim 1, characterized in that: The leveling assembly (5) also includes a connecting column (52), a fixed connecting block (55), and a leveling connecting plate (57); the bottom end of the connecting column (52) is provided with a base mounting block (51) and is detachably connected to the base plate (2) through the base mounting block (51); a connecting spring (56) is installed on the fixed connecting block (55) and abuts against the lower surface of the bottom end of the leveling connecting plate (57); an adjustment knob (53) is provided on the leveling connecting plate (57), the lower end of the adjustment knob (53) passes through the leveling connecting plate (57) and is threadedly connected to the connecting column (52); a guide rod (54) is also installed on the base plate (2), and a guide groove is provided on the inner surface of the guide rod (54); the leveling connecting plate (57) is slidably connected to the guide rod (54) through the guide groove; the adjustment knob (53) rotates, driving the leveling connecting plate (57) to rise and fall along the direction of the guide groove.
3. The leveling and clamping mechanism for auxiliary piston processing according to claim 2, characterized in that: The upper surface of the adjustment knob (53) is engraved with scale markings (50) along the circumference, which are used to visually display the height adjustment amount of the leveling connecting plate (57) and realize precise control of the piston level.
4. The leveling and clamping mechanism for auxiliary piston processing according to claim 1, characterized in that: The clamping assembly (3) includes a drive motor (31), a support base (34), and a product clamping block (36); the connecting plate (4) is installed on the side of the support base (34) and fixedly connected to the base plate (2) through a reinforcing connecting block (6); the support base (34) is provided with a horizontally extending groove (35); the product clamping block (36) is slidably embedded in the groove (35), the clearance between the product clamping block (36) and the groove (35) is ≤0.05mm, and the central axis of the product clamping block (36) and the product placement slot (59) are on the same horizontal line; the drive motor (31) is fixedly installed on the support base (34). On one side of the product clamping block (36), its output shaft is fixedly connected to one end of the connecting shaft (33) via a coupling; the other end of the connecting shaft (33) is threadedly connected to the product clamping block (36), and the axis of the connecting shaft (33) is parallel to the extension direction of the slide groove (35); the drive motor (31) drives the product clamping block (36) to move horizontally back and forth in the slide groove (35), thereby realizing the automatic clamping and loosening of the piston in the product placement slot (59) by the product clamping block (36); a stop block (37) is installed at the end of the slide groove (35) to limit the movement range of the product clamping block (36); the product clamping block (36) can be disassembled and replaced individually.
5. The leveling and clamping mechanism for auxiliary piston processing according to claim 1 or 4, characterized in that: The clamping assembly (3) also includes a sealing block (32) disposed at the outer end of the connecting shaft (33) and an anti-slip pad (38) pasted on the end face of the product clamping block (36) facing the product placement slot (59); the sealing block (32) is a ring structure, and its inner ring is tightly fitted with the outer circumferential surface of the connecting shaft (33); the sealing block (32) is an oil-resistant elastic sealing material, which can maintain a sealed state during the rotation of the connecting shaft (33) and effectively block metal chips and coolant generated during piston processing; the anti-slip pad (38) is a highly elastic wear-resistant rubber or silicone, and its surface is provided with diamond-shaped anti-slip texture to increase the friction with the piston surface and avoid rigid contact with the piston, preventing indentation.
6. The leveling and clamping mechanism for auxiliary piston processing according to claim 1 or 2, characterized in that: The cover plate (58) is detachably installed on the upper surface of the leveling connecting plate (57) by bolts. The cover plate (58) can be replaced individually according to different specifications of pistons. The product placement slot (59) limits the edge of the piston to prevent the piston from axially shifting due to high-frequency vibration during processing.