A floating support clamp device for clutch cylinder processing

Abstract

The utility model is suitable for clutch cylinder liner processing technical field provides a kind of clutch cylinder liner processing floating support fixture device, it includes: base, bracing piece, butt joint barrel and clutch cylinder liner, bracing piece one end is fixed on base.In the scheme, by setting outer wall clamping mechanism, inner wall clamping mechanism and linkage mechanism, through the gear linkage driven by cylinder, and then through the gear makes two racks can synchronous linkage, and can carry out adaptive meshing linkage, and then respectively drive outer wall clamping mechanism, inner wall clamping mechanism carry out linkage, so that the inner wall of cylinder liner inner tube can be synchronously clamped and locked, ensure that cylinder liner inner and outer wall stress balance, eliminate the deformation risk caused by unilateral clamping, and the stability of effective clutch cylinder liner is clamped, avoid producing radial deviation, while double rack transmission system automatically compensates cylinder liner size tolerance, adapt to different wall thickness workpiece, clamping force distribution is more uniform, avoid the local stress concentration problem of traditional fixture.

Description

Technical Field

[0001] This utility model belongs to the field of clutch cylinder liner processing technology, and in particular relates to a floating support fixture device for clutch cylinder liner processing. Background Technology

[0002] The clutch cylinder liner is a core component of the engine cylinder system, forming the combustion chamber space together with the piston and cylinder head. Based on structural differences, it can be divided into two types: dry and wet. The back of the dry cylinder liner does not contact the coolant, has a thin and light structure, and is simple to manufacture, but has a lower heat dissipation efficiency. The back of the wet cylinder liner is in direct contact with the coolant, has excellent heat dissipation performance and is conducive to engine weight reduction, but has a higher maintenance complexity. As an important supporting component of the wet clutch, the cylinder liner requires relatively high machining precision. Therefore, before machining, it is generally necessary to use a support fixture to support, fix and secure it.

[0003] Although there are various types of support fixtures available, some problems still exist. For example, when clamping and fixing the clutch cylinder liner, the cylinder liner has an inner and outer wall due to its cylindrical structure. Traditional fixtures can only clamp and fix either the inner or outer wall of the cylinder liner, failing to achieve synchronous constraint of the inner and outer walls. This single-point force application method can cause the workpiece to undergo radial displacement and wobbling deformation under the action of cutting force. Unilateral clamping will change the force balance of the workpiece, which can easily cause local deformation when machining high-precision cylinder liners. The floating support ring set in the existing device can only buffer radial vibration through compression springs, but cannot eliminate torsional vibration caused by asymmetrical clamping, which directly affects the parallelism requirements of the end face of the clutch friction plate. Utility Model Content

[0004] This utility model provides a floating support fixture device for clutch cylinder liner machining, which aims to solve the problem that current support fixtures can only clamp the inner or outer wall of the cylinder liner, resulting in radial displacement and cylinder liner deformation during machining.

[0005] This utility model is implemented as follows: a floating support fixture device for processing clutch cylinder liners includes: a base, a support rod, a docking cylinder, and a clutch cylinder liner. One end of the support rod is fixed to the base, and the docking cylinder is fixed to the other end of the support rod. The base and the docking cylinder are displaced on the same axis. The clutch cylinder liner is sleeved outside the docking cylinder, and an inner cylinder liner is provided at the axial center of the clutch cylinder liner.

[0006] The base is provided with an outer wall clamping mechanism, which abuts against the outer wall of the cylinder liner inner cylinder. The outer wall clamping mechanism includes a docking frame, a clamping plate, a connecting head, and an adjusting rod. The docking frame is fixed at the edge of the base. The center of the clamping plate is rotatably connected to the docking frame, and one end of the clamping plate abuts against the outer wall of the cylinder liner inner cylinder. The connecting head is located at the center of the base and is slidably connected to the support rod. One end of the adjusting rod is rotatably connected to the connecting head, and the other end is rotatably connected to the other end of the clamping plate.

[0007] The docking cylinder is equipped with an inner wall clamping mechanism, which abuts against the inner wall of the cylinder liner. A linkage mechanism is provided at the bottom of the base, which is connected to the outer wall clamping mechanism and the inner wall clamping mechanism respectively.

[0008] Preferably, the inner wall clamping mechanism includes a sliding groove, an abutment plate, a limiting head, and a first driven rod. The sliding groove is disposed on the outer wall of the docking cylinder and communicates with the inside of the docking cylinder. The abutment plate is slidably engaged in the sliding groove. The limiting head is fixed in the inner cavity of the docking cylinder. One end of the first driven rod is rotatably connected to the limiting head, and the other end is rotatably connected to the abutment plate.

[0009] Preferably, a push-pull rod is slidably connected at the center of the limiting head, one end of the push-pull rod is located inside the docking cylinder, the other end is located outside the docking cylinder, and a second driven rod is rotatably connected between the push-pull rod and the abutment plate.

[0010] Preferably, the linkage mechanism includes a support frame, a slider, a cylinder, a support seat, a gear, and a rack. The support frame is fixed to the bottom of the base and has a U-shaped structure. The inner wall of the support frame has slots on both sides. The slider is slidably engaged in the slots, and two sliders are symmetrically arranged. One slider is fixed to the connector, and the other slider is fixed to the push-pull rod. The slider is fixed at the bottom center of the support frame. The support seat is connected to the telescopic part of the cylinder. The gear is rotatably connected in the support seat. The rack is fixed to one side of the slider, and two racks are symmetrically arranged, with the two racks meshing on both sides of the gear.

[0011] Preferably, a return spring is sleeved on the outside of the push-pull rod, one end of which is fixed to the push-pull rod, and the other end abuts against the bottom of the docking cylinder.

[0012] Preferably, an abutment disc is rotatably connected to the end of the clamp plate that abuts against the outer wall of the cylinder liner, and a rubber pad is provided on the outer wall of the abutment disc.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] This solution incorporates an outer wall clamping mechanism, an inner wall clamping mechanism, and a linkage mechanism. A cylinder drives gears, which in turn enable two racks to move synchronously and adaptively, thus driving the outer and inner wall clamping mechanisms. This allows the inner and outer walls of the cylinder liner to be clamped and locked synchronously, ensuring balanced force distribution and eliminating the risk of deformation caused by unilateral clamping. It also effectively maintains the overall stability of the clamped cylinder liner, preventing radial displacement. Furthermore, the dual rack transmission system automatically compensates for cylinder liner dimensional tolerances, adapting to workpieces with different wall thicknesses and providing a more uniform clamping force distribution, avoiding the localized stress concentration problems of traditional fixtures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the base and its overall connection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the outer wall clamping mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the linkage mechanism structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the inner wall clamping mechanism of this utility model;

[0020] In the diagram: 1. Base; 2. Support rod; 3. Connecting cylinder; 4. Clutch cylinder liner; 5. Cylinder liner inner cylinder; 6. Outer wall clamping mechanism; 61. Connecting frame; 62. Clamping plate; 63. Connecting head; 64. Adjusting rod; 7. Inner wall clamping mechanism; 71. Slide groove; 72. Abutment plate; 73. Limiting head; 74. First driven rod; 75. Push-pull rod; 76. Second driven rod; 8. Linkage mechanism; 81. Support frame; 82. Slider; 83. Cylinder; 84. Support seat; 85. Gear; 86. Rack; 9. Return spring. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides a floating support fixture device for machining clutch cylinder liners, such as... Figure 1-5 As shown, it includes: a base 1, a support rod 2, a docking cylinder 3, and a clutch cylinder liner 4. One end of the support rod 2 is fixed to the base 1, and the docking cylinder 3 is fixed to the other end of the support rod 2. The base 1 and the docking cylinder 3 are displaced on the same axis. The clutch cylinder liner 4 is sleeved on the outside of the docking cylinder 3, and an inner cylinder liner 5 is provided at the axial center of the clutch cylinder liner 4.

[0024] An outer wall clamping mechanism 6 is provided on the base 1. The outer wall clamping mechanism 6 abuts against the outer wall of the cylinder liner inner cylinder 5. The outer wall clamping mechanism 6 includes a docking frame 61, a clamping plate 62, a connecting head 63, and an adjusting rod 64. The docking frame 61 is fixed at the edge of the base 1. The center of the clamping plate 62 is rotatably connected to the docking frame 61. One end of the clamping plate 62 abuts against the outer wall of the cylinder liner inner cylinder 5. The connecting head 63 is located at the axis of the base 1 and is slidably connected to the support rod 2. One end of the adjusting rod 64 is rotatably connected to the connecting head 63, and the other end is rotatably connected to the other end of the clamping plate 62.

[0025] An inner wall clamping mechanism 7 is provided inside the docking cylinder 3. The inner wall clamping mechanism 7 abuts against the inner wall of the cylinder liner inner cylinder 5. A linkage mechanism 8 is provided at the bottom of the base 1. The linkage mechanism 8 is connected to the outer wall clamping mechanism 6 and the inner wall clamping mechanism 7 respectively.

[0026] The inner wall clamping mechanism 7 includes a sliding groove 71, an abutment plate 72, a limiting head 73, and a first driven rod 74. The sliding groove 71 is disposed on the outer wall of the docking cylinder 3 and communicates with the interior of the docking cylinder 3. The abutment plate 72 is slidably engaged in the sliding groove 71. The limiting head 73 is fixed in the internal cavity of the docking cylinder 3. One end of the first driven rod 74 is rotatably connected to the limiting head 73, and the other end is rotatably connected to the abutment plate 72. A push-pull rod 75 is slidably connected at the center of the limiting head 73. One end of the push-pull rod 75 is located inside the docking cylinder 3, and the other end is located outside the docking cylinder 3. A second driven rod 76 is rotatably connected between the push-pull rod 75 and the abutment plate 72.

[0027] The linkage mechanism 8 includes a support frame 81, a slider 82, a cylinder 83, a support seat 84, a gear 85, and a rack 86. The support frame 81 is fixed to the bottom of the base 1 and has a U-shaped structure. The inner wall of the support frame 81 has slots on both sides. The slider 82 is slidably engaged in the slots, and two sliders are symmetrically arranged. One slider 82 is fixed to the connector 63, and the other slider 82 is fixed to the push-pull rod 75. The slider 82 is fixed at the bottom center of the support frame 81. The support seat 84 is connected to the telescopic part of the cylinder 83. The gear 85 is rotatably connected in the support seat 84. The rack 86 is fixed to one side of the slider 82, and two racks are symmetrically arranged. The two racks 86 mesh with the gear 85 on both sides.

[0028] It should be noted that existing support fixtures can only clamp and fix the inner or outer wall of the clutch cylinder liner when clamping and fixing it, and cannot achieve synchronous constraint of the inner and outer walls. This single-point force application method will cause the workpiece to undergo radial displacement and wobbling deformation under the action of cutting force. Unilateral clamping will change the force balance of the workpiece, and local deformation is easy to occur when turning high-precision cylinder liners. The floating support ring set in the existing device can only buffer radial vibration through compression spring, but cannot eliminate torsional vibration caused by asymmetrical clamping, which directly affects the end face parallelism requirement of the clutch friction plate. To solve this problem, this solution sets up an outer wall clamping mechanism 6 and an inner wall clamping mechanism 6. The holding mechanism 7 and the linkage mechanism 8 are driven by the cylinder 83 to drive the gear 85, which in turn enables the two racks 86 to move synchronously and adaptively mesh. This, in turn, drives the outer wall clamping mechanism 6 and the inner wall clamping mechanism 7 to move together, so that the inner and outer walls of the cylinder liner 5 can be clamped and locked synchronously. This ensures that the inner and outer walls of the cylinder liner are subjected to balanced forces, eliminates the risk of deformation caused by unilateral clamping, and effectively maintains the overall stability of the clutch cylinder liner 4 when it is clamped, avoiding radial displacement. At the same time, the double rack 86 transmission system automatically compensates for the cylinder liner dimensional tolerances, adapts to workpieces with different wall thicknesses, and provides a more uniform clamping force distribution, avoiding the problem of local stress concentration in traditional fixtures.

[0029] Specifically, in this embodiment, the solution mainly includes a base 1, a support rod 2, a docking cylinder 3, a clutch cylinder liner 4, a cylinder liner inner cylinder 5, an outer wall clamping mechanism 6, an inner wall clamping mechanism 7, and a linkage mechanism 8. In use, the clutch cylinder liner 4 is first fitted onto the outside of the docking cylinder 3. Then, the cylinder 83 extension part drives the gear 85 to move. The gear 85 drives the rack 86 to mesh and move in conjunction with the gear 85, and simultaneously drives the two sliders 82 to move. The two sliders 82 drive the connector 63 and the push-pull rod 75 to move respectively. The connector 63 and the adjusting rod 64 drive the clamping plate 62 to rotate, so that one end of the clamping plate 62 abuts against the outer wall of the clamping plate 62. The push-pull rod 75 and the second driven rod 76 drive the abutting plate 72 to move in conjunction with the abutting plate 72, so that the abutting plate 72 abuts against the inner wall of the cylinder liner inner cylinder 5.

[0030] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, a return spring 9 is sleeved on the outside of the push-pull rod 75. One end of the return spring 9 is fixed to the push-pull rod 75, and the other end abuts against the bottom of the docking cylinder 3.

[0031] In this embodiment, the push-pull rod 75 can be quickly reset by the elastic force of the reset spring 9.

[0032] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, an abutting disc is rotatably connected to the abutting end of the clamping plate 62 and the outer wall of the cylinder liner 5, and a rubber pad is provided on the outer wall of the abutting disc.

[0033] In this embodiment, the vibration generated during the processing of the clutch cylinder liner 4 is eliminated by setting the abutting disc and the rubber pad, while avoiding rigid contact between the outer wall of the cylinder liner inner cylinder 5 and the clamping plate 62, which would cause damage to it.

[0034] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0035] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0036] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A floating support jig device for clutch bush machining, characterized by, include: The base (1), support rod (2), docking cylinder (3) and clutch cylinder sleeve (4) are provided. One end of the support rod (2) is fixed on the base (1), and the docking cylinder (3) is fixed on the other end of the support rod (2). The base (1) and the docking cylinder (3) are displaced on the same axis. The clutch cylinder sleeve (4) is sleeved on the outside of the docking cylinder (3). The inner cylinder sleeve (5) is provided at the axial center of the clutch cylinder sleeve (4). The base (1) is provided with an outer wall clamping mechanism (6), which abuts against the outer wall of the cylinder liner inner cylinder (5). The outer wall clamping mechanism (6) includes a docking frame (61), a clamping plate (62), a connector (63), and an adjusting rod (64). The docking frame (61) is fixed at the edge of the base (1). The center of the clamping plate (62) is rotatably connected to the docking frame (61). One end of the clamping plate (62) abuts against the outer wall of the cylinder liner inner cylinder (5). The connector (63) is located at the axis of the base (1) and is slidably connected to the support rod (2). One end of the adjusting rod (64) is rotatably connected to the connector (63), and the other end is rotatably connected to the other end of the clamping plate (62). The docking cylinder (3) is provided with an inner wall clamping mechanism (7), which abuts against the inner wall of the cylinder liner inner cylinder (5), and a linkage mechanism (8) is provided at the bottom of the base (1), which is connected to the outer wall clamping mechanism (6) and the inner wall clamping mechanism (7) respectively.

2. A floating support fixture device for clutch bush machining as claimed in claim 1, wherein, The inner wall clamping mechanism (7) includes a sliding groove (71), an abutment plate (72), a limiting head (73), and a first driven rod (74). The sliding groove (71) is set on the outer wall of the docking cylinder (3) and communicates with the inside of the docking cylinder (3). The abutment plate (72) is slidably engaged in the sliding groove (71). The limiting head (73) is fixed in the cavity inside the docking cylinder (3). One end of the first driven rod (74) is rotatably connected to the limiting head (73), and the other end is rotatably connected to the abutment plate (72).

3. A floating support fixture apparatus for clutch bushing machining as set forth in claim 2, characterized in that, A push-pull rod (75) is slidably connected at the center of the limiting head (73). One end of the push-pull rod (75) is located inside the docking cylinder (3), and the other end is located outside the docking cylinder (3). A second driven rod (76) is rotatably connected between the push-pull rod (75) and the abutment plate (72).

4. A floating support fixture apparatus for clutch bush machining as claimed in claim 3, wherein, The linkage mechanism (8) includes a support frame (81), a slider (82), a cylinder (83), a support seat (84), a gear (85), and a rack (86). The support frame (81) is fixed to the bottom of the base (1) and has a U-shaped structure. The inner wall of the support frame (81) has slots on both sides. The slider (82) is slidably engaged in the slots, and two sliders are symmetrically arranged. One slider (82) is fixed to the connector (63), and the other slider (82) is fixed to the push-pull rod (75). The slider (82) is fixed at the bottom center of the support frame (81). The support seat (84) is connected to the telescopic part of the cylinder (83). The gear (85) is rotatably connected in the support seat (84). The rack (86) is fixed on one side of the slider (82), and two racks are symmetrically arranged. The two racks (86) mesh on both sides of the gear (85).

5. A floating support fixture apparatus for clutch bushing machining as set forth in claim 3, characterized in that, The push-pull rod (75) is fitted with a return spring (9), one end of which is fixed to the push-pull rod (75), and the other end abuts against the bottom of the docking cylinder (3).

6. A floating support fixture apparatus for clutch bushing machining as set forth in claim 1, characterized in that, The clamping plate (62) is rotatably connected to the abutting end of the cylinder liner inner cylinder (5), and a rubber pad is provided on the outer wall of the abutting disc.

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