Fixing device for cylinder head cover machining

Abstract

The utility model relates to the technical field of cylinder head covers, in particular to a fixing device for machining a cylinder head cover, which comprises a support, a clamping shaft arranged at one end of the support and used for clamping a clamping groove at the end of the cylinder head cover, a movable clamping piece arranged at the other end of the support, and a plurality of supporting pieces arranged in the middle of the support and inclined towards the outside of the support. The utility model aims to overcome the defect that the cylinder head cover is difficult to fix firmly due to the complicated curved surface and geometrical shape in the machining process, and ensures that the cylinder head cover is always kept at a fixed position in the machining process and is not easy to move or distort by utilizing the synergistic effect of multiple parts, so that the machining efficiency is improved. Therefore, the machining precision and consistency are guaranteed, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cylinder cover, more particularly to a fixing device for cylinder cover processing. BACKGROUND

[0002] Engine cylinder cover is a cover installed on the top of the engine cylinder cover, which is usually made of metal (such as aluminum alloy) or plastic, used to cover and seal the intake and exhaust valve mechanism on the engine cylinder cover, usually installed on the top of the engine, fixed on the cylinder cover by bolts or other fixing devices, and can be easily removed for maintenance and repair when needed.

[0003] At present, the engine cylinder cover needs to be stabilized during processing (such as polishing), and the engine cylinder cover usually has complex curved surfaces and geometric shapes, which need a long time to accurately install and adjust, which makes it difficult to stabilize quickly during processing by simple fixing methods, such as threaded holes and bolts, resulting in low processing efficiency of the cylinder cover. In order to solve this problem, a cylinder cover processing platform is disclosed in Chinese patent, which comprises a workbench, two vertical plates are fixedly connected to the surface of the workbench, a rotating mechanism is arranged between the two vertical plates, the rotating mechanism is used for rotating the cylinder cover, a connecting plate is fixedly connected to the surface of the workbench, an adjusting mechanism is arranged on one side of the connecting plate, the adjusting mechanism is used for stably placing the cylinder cover, a clamping mechanism is arranged on one side of the vertical plate, the clamping mechanism is used for clamping the cylinder cover; wherein the clamping mechanism clamps and fixes the cylinder cover placed on the placing plate through the elongation of the cylinder output end, meets the clamping of cylinder covers of various thicknesses, and the operation is simple, thereby improving the efficiency of cylinder cover processing, and stable processing is carried out on the processing platform.

[0004] Although the above method can clamp the cylinder cover through the face contact of clamping plate one and clamping plate two, it is difficult to fix firmly due to the complex curved surface and geometric shape of the engine cylinder cover, which is easy to move during processing, affecting the processing. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiency that the complex curved surface and geometric shape of the cylinder cover are difficult to fix firmly during processing, and provides a fixing device for cylinder cover processing. The utility model utilizes the synergistic effect of multiple components to ensure that the cylinder cover always maintains a fixed position during processing, is not easy to move or twist, thereby ensuring the precision and consistency of processing and improving the processing efficiency.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] The utility model provides a fixing device for cylinder cover processing, including support, the clamping shaft for clamping the end head clamping groove of cylinder cover is equipped in one end of support, the movable clamping piece of the other end of support and the support piece of the middle part of support and the outside of support are inclined to each other.

[0008] It needs to be explained that the utility model utilizes the clamping shaft to clamp the end head clamping groove of cylinder cover, and utilizes the support piece inclined to the outside to support the main body of cylinder cover, and the support piece inclined to the outside forms the effect of wrapping support, and the cylinder cover is placed on it, which can form a stable support effect around the cylinder cover, and the movable clamping piece is additionally provided in the utility model, which can move within a certain range and space to cooperate with the placement and clamping of the cylinder cover, the utility model clamps the cylinder cover at multiple points, utilizes point contact and surface contact to clamp, can stably limit the cylinder cover on the support, utilizes the synergistic effect of multiple components to ensure that the cylinder cover always maintains a fixed position during processing, is not prone to moving or distortion, thereby ensuring the precision and consistency of processing and improving the processing efficiency, and the movable clamping piece is additionally provided in the utility model to flexibly cooperate with the placement and clamping of the cylinder cover, thereby realizing the rapid clamping of the cylinder cover.

[0009] Further, the support piece is plate-shaped, and the end of the support piece is bent to form a support surface.

[0010] Further, the support piece includes at least two groups, and the support pieces are symmetrically arranged on both sides of the middle part of the support.

[0011] It needs to be explained that the plate-shaped support piece has a larger support area and can have a better supporting effect, and the symmetric arrangement has better support stability.

[0012] Further, the movable clamping piece includes a driving block, an abutting block, a suspension, a limiting rod, an elastic shaft and a handle assembly: a first driving rod is fixed to one end of the driving block, one end of the abutting block is rotatably connected to the first driving rod, a second driving rod is further fixed to the middle part of the driving block, and the second driving rod is rotatably connected to the support; the two ends of the suspension are rotatably connected to the other end of the driving block and one end of the elastic shaft, respectively, and a first rotating shaft rotatably connected to the suspension is further arranged in the middle part of the suspension; one end of the limiting rod is rotatably connected to the first rotating shaft, and the other end of the limiting rod is fixedly limited to the support; the elastic shaft and the suspension are rotatably connected through a second rotating shaft, and the other end of the elastic shaft is fixedly connected to the abutting block; a third driving rod is further fixed to the other end of the driving block, and the handle assembly is fixed to the third driving rod.

[0013] Further, the elastic shaft comprises a concave plate rotationally connected with the second rotating shaft, a receiving cylinder fixedly connected with the abutting block, a movable rod having one end fixedly connected with the concave plate, and a spring having two ends fixed on the concave plate and the receiving cylinder respectively, and the other end of the movable rod is inserted into the receiving cylinder and slides in and out.

[0014] It should be noted that the working principle of the movable clamping piece is as follows: during the machining process of the engine cylinder cover, the handle assembly is first actuated to pull the third driving rod, and the rotation of the third driving rod will make the whole driving block rotate along the clockwise direction around the second driving rod, and during the rotation, the abutting block is pulled by the first driving rod through the top end of the driving block, so that the elastic shaft fixed with the abutting block is also pulled and deformed, and after the abutting block is adjusted in the rotation of the first driving rod, the abutting block is flipped outward and moves outward, the space between the movable clamping piece and the support piece is enlarged, the end of the cylinder cover can be clamped in the clamping shaft, and the support piece is designed to support the cylinder cover, then the handle assembly is loosened, and under the elastic restoring force of the elastic shaft, the abutting block is rotated along the first driving rod while pulling the top end of the driving block, the position of the first driving rod changes to drive the position of the driving block, the whole driving block rotates along the counterclockwise direction around the second driving rod, and the abutting block is reset in the position change of the first driving rod, and finally the abutting block is stably clamped on the engine cylinder cover during the deflection process; during the opening and recovery of the movable clamping piece, the driving block will deflect along with the suspension, and since one end of the suspension is limited by the limiting rod on the support, the deflection of the elastic shaft and the driving block will cause different linkage effects, so as to realize the position change of the abutting block, and when the next group of cylinder covers is machined, the handle assembly is actuated to release the abutting block from the cylinder cover.

[0015] Further, the two ends of the spring are fixedly connected with a first fixed disc and a second fixed disc respectively, the first fixed disc is fixed on the outside of the receiving cylinder, the second fixed disc is fixed on the end of the concave plate, and the first fixed disc and the second fixed disc limit the spring relative to each other, and during the deformation of the spring, the spring provides a reverse elastic force.

[0016] Further, the support is an X-shaped support with two forked arms, the clamping shaft is rotationally connected at the two ends of the support on one side of the forked arms, and the movable clamping piece is arranged in the other side of the forked arms of the support, and the support pieces are symmetrically arranged on the two sides of the forked arms of the support.

[0017] Specifically, the driving block is rotationally connected in the other side of the forked arms of the support through the second driving rod, and the limiting rod is also fixed in the other side of the forked arms of the support.

[0018] Further, the driving blocks and the limiting rods can be symmetrically arranged in two groups, and the two groups of driving blocks and limiting rods are symmetrically arranged about the elastic shaft; each group of second driving rods is arranged outside the driving block, and each group of second driving rods is rotatably connected to the inner side of the fork-shaped arm of the support; one end of each group of limiting rods is fixed to the inner side of the fork-shaped arm of the support, and the first rotating shaft penetrates the two groups of limiting rods and the middle part of the suspension located therebetween;

[0019] Further, the abutting block comprises an abutting head, and a sleeve fixedly connected with the abutting head, the sleeve being sleeved on and rotatably connected with the first driving rod.

[0020] Further, the abutting head is provided with a beveled abutting portion matched with the slope surface of the cylinder cover.

[0021] Further, the end of the beveled abutting portion is provided with an arc-shaped transition portion.

[0022] Further, the handle assembly comprises a triangular plate and a handle fixed to the outer side of the triangular plate, the inner side of the triangular plate being fixedly connected with the third driving rod and the second driving rod.

[0023] Further, the handle assembly can also be symmetrically arranged in two groups, and the two groups of handle assemblies are respectively located outside the fork-shaped arms of the supports and are fixedly connected with the second driving rods penetrating the fork-shaped arms.

[0024] Further, the handle is further provided with anti-skid lines on the outer side, so as to improve the friction and facilitate the user to hold and exert force.

[0025] Compared with the prior art, the utility model has the advantages that:

[0026] (1) The utility model utilizes the clamping shaft to clamp the end head clamping groove of the cylinder cover, and utilizes the outwardly inclined supporting pieces to support the main body of the cylinder cover, the outwardly inclined supporting pieces form a wrapping supporting effect, and the cylinder cover is placed thereon, so that stable supporting effects are formed around the cylinder cover.

[0027] (2) The utility model additionally provides the movable clamping piece to flexibly cooperate with the placement and clamping of the cylinder cover, so as to realize rapid clamping of the cylinder cover, and the movable clamping piece can move in a certain range and space to cooperate with the placement and clamping of the cylinder cover.

[0028] (3) The utility model discloses a plurality of points to carry out clamping to the cylinder cover, utilize the clamping of point contact and surface contact multiple contact mode, can firmly restrict the cylinder cover on the support, utilize the synergies of multiple components, ensure that the cylinder cover always keeps fixed position in the processing, is not easy to move or distortion, thereby guarantee the precision and consistency of processing, improve the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the whole structure schematic diagram of the utility model;

[0030] Figure 2 It is the local structure schematic diagram of the utility model;

[0031] Figure 3 It is Figure 1 The local enlarged view of A in the middle.

[0032] The illustration mark is as follows:

[0033] 1 - support, 2 - clamping shaft, 31 - drive block, 311 - first drive rod, 312 - second drive rod, 312 - third drive rod, 32 - abutment block, 33 - suspension, 331 first pivot, 332 - second pivot, 34 - limit rod, 35 - elastic shaft, 351 - recessed plate, 352 - storage cylinder, 353 - movable rod, 354 - spring, 3541 - first fixed disc, 3542 - second fixed disc, 36 - handle assembly, 361 - triangular plate, 362 - handle, 4 - support piece, 41 - support surface. DETAILED DESCRIPTION

[0034] The utility model will be further explained in combination with specific implementation. Among them, the drawing is only for example for explaining, and the representation is only schematic diagram, and cannot be understood as the limitation of this patent; in order to better explain the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and the size of actual product is not represented; for those skilled in the art, it is understandable that some well-known structures in the drawing and its description can be omitted.

[0035] The same or similar reference numerals in the drawing of the utility model embodiment correspond to the same or similar components;In the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore the position relationship of the term in the drawing is only for example for explaining, and cannot be understood as the limitation of this patent, for the ordinary skilled in the art, can understand the specific meaning of the above terms according to the specific situation.

[0036] Embodiment 1

[0037] As Figures 1 to 3 The first embodiment of the utility model provides a fixing device for cylinder cover processing, including support 1, the clamping shaft 2 for clamping the end head clamping groove of cylinder cover is equipped in one end of support 1, the movable clamping piece of the other end of support 1 and the several support pieces 4 of the middle part of support 1 and towards the outside of support 1 are inclined.

[0038] It should be noted that the clamping shaft 2 of the embodiment is used to clamp the end head clamping groove of the cylinder cover, and the several support pieces 4 inclined outward are used to support the main body of the cylinder cover. The support pieces 4 inclined outward form a wrapping support effect, and the cylinder cover placed thereon can form a stable support effect around the cylinder cover. In addition, the movable clamping piece is additionally provided, which can move within a certain range and space to cooperate with the placement and clamping of the cylinder cover. The utility model clamps the cylinder cover at multiple points, uses point contact and surface contact to clamp, can stably restrict the cylinder cover on the support 1, and uses the synergistic effect of multiple components to ensure that the cylinder cover always maintains a fixed position during processing, is not easy to move or twist, thereby ensuring the precision and consistency of processing and improving the processing efficiency. In addition, the movable clamping piece is additionally provided to flexibly cooperate with the placement and clamping of the cylinder cover, thereby realizing rapid clamping of the cylinder cover.

[0039] As Figure 3 The support piece 4 is plate-shaped, and the end of the support piece 4 is bent to form a support surface 41.

[0040] As Figure 1 The support piece 4 includes at least two groups, and the support piece 4 is symmetrically arranged on both sides of the middle part of the support 1.

[0041] It should be noted that the plate-shaped support piece 4 has a larger support area and better support effect, and the symmetric arrangement has better support stability.

[0042] As Figure 1 And Figure 2As shown, the movable clamping member comprises a driving block 31, an abutting block 32, a suspension 33, a limiting rod 34, an elastic shaft 35 and a handle assembly 36: one end of the driving block 31 is fixed with a first driving rod 311, one end of the abutting block 32 is rotatably connected to the first driving rod 311, the middle part of the driving block 31 is further fixed with a second driving rod 312, the second driving rod 312 penetrates through the support 1 and is rotatably connected to the support 1; two ends of the suspension 33 are rotatably connected to the other end of the driving block 31 and one end of the elastic shaft 35 respectively, the middle part of the suspension 33 is further provided with a first rotating shaft 331 rotatably connected thereto, one end of the limiting rod 34 is rotatably connected to the first rotating shaft 331, the other end of the limiting rod 34 is fixedly limited on the support 1; the elastic shaft 35 is rotatably connected to the suspension 33 through a second rotating shaft 332, the other end of the elastic shaft 35 is fixedly connected to the abutting block 32; the other end of the driving block 31 is further fixed with a third driving rod 313, and the handle assembly 36 is fixed on the third driving rod 313.

[0043] As shown in the drawings, Figure 2 As shown, the elastic shaft 35 comprises a concave plate 351 rotatably connected to the second rotating shaft 332, a receiving cylinder 352 fixedly connected to the abutting block 32, a movable rod 353 fixedly connected to one end of the concave plate 351, and a spring 354 fixedly connected to two ends of the concave plate 351 and the receiving cylinder 352 respectively, the other end of the movable rod 353 is slidably inserted into the receiving cylinder 352.

[0044] It should be noted that the working principle of the movable clamping piece of the embodiment is as follows: during the machining of the engine cylinder cover, the handle assembly 36 is first pulled to pull the third driving rod 313, and the rotation of the third driving rod 313 drives the whole driving block 31 to rotate along the clockwise direction around the second driving rod, and the top end of the driving block 31 pulls the abutting block 32 through the first driving rod 311 during the rotation, so that the elastic shaft 35 fixed to the abutting block 32 is also pulled to be stretched, and after the abutting block 32 is adjusted to rotate by the first driving rod 311, the abutting block 32 is flipped outward and moves outward, the space between the movable clamping piece and the support 4 is enlarged, the end of the cylinder cover can be clamped on the clamping shaft 2, and the support 4 is supported by the inclined design, then the handle assembly 36 is loosened, the abutting block 32 is pulled along the first driving rod 311 under the elastic reset action of the elastic shaft 35, the position of the first driving rod 311 changes to drive the position of the driving block 31 to move, the whole driving block 31 rotates along the counterclockwise direction around the second driving rod, and the abutting block 32 is reset in position while rotating in the position change of the first driving rod 311, until the abutting block 32 is finally stably clamped on the engine cylinder cover in the deflection process; the driving block 31 drives the suspension 33 to deflect during the opening and restoration of the movable clamping piece, and since one end of the suspension 33 is limited on the support 1 through the limiting rod 34, the deflection of the elastic shaft 35 and the driving block 31 causes different linkage actions, so that the position of the abutting block 32 changes, and when the next group of cylinder covers is machined, the handle assembly 36 is loosened to release the abutting block from the cylinder cover.

[0045] As shown in Figure 1 , the support 1 is an X-shaped support 1 with two forked arms, the two ends of the clamping shaft 2 are rotatably connected to one side of the forked arms of the support 1, the movable clamping piece is arranged in the other side of the forked arms of the support 1, and the supports 4 are symmetrically arranged on the two forked arms of the support 1.

[0046] As shown in Figure 2 , the driving block 31 is rotatably connected to the other side of the forked arms of the support 1 through the second driving rod 312, and the limiting rod 34 is also fixed to the other side of the forked arms of the support 1.

[0047] As shown in Figure 1 , the driving block 31 and the limiting rod 34 can be arranged in two groups, and the two groups of driving blocks 31 and limiting rods 34 are symmetrically arranged around the elastic shaft 35; each group of second driving rods 312 is arranged on the outer side of the driving block 31, and each group of second driving rods 312 is rotatably connected to the inner side of the forked arms of the support 1; one end of each group of limiting rods 34 is fixed to the inner side of the forked arms of the support 1, and the first rotating shaft 331 penetrates the two groups of limiting rods 34 and the middle part of the suspension 33 arranged therebetween.

[0048] As shown in Figure 2 The abutting block 32 includes an abutting head 321, a sleeve 322 fixedly connected with the abutting head 321, and the sleeve 322 is sleeved on the first driving rod 311 and rotationally connected with the first driving rod 311.

[0049] As shown in Figure 2 The abutting head 321 is provided with a beveled abutting part matched with the slope surface of the cylinder cover. The beveled abutting part can be just clamped on the slope surface of the cylinder cover, improving the stability of clamping.

[0050] As shown in Figure 2 The end of the beveled abutting part is provided with an arc-shaped transition part. The arc-shaped transition part can reduce the damage to the cylinder cover during clamping.

[0051] Embodiment 2

[0052] This embodiment is similar to embodiment 1, and the difference is that in this embodiment:

[0053] As shown in Figure 2 The two ends of the spring 354 are respectively fixedly connected with a first fixed disc 3541 and a second fixed disc 3542, the first fixed disc 3541 is fixed on the outside of the receiving cylinder 352, and the second fixed disc 3542 is fixed on the end of the concave plate 351. The first fixed disc 3541 and the second fixed disc 3542 relatively limit the spring 354, and provide a reverse elastic force during the deformation of the spring 354.

[0054] The other principles and structures of this embodiment are the same as those of embodiment 1.

[0055] Embodiment 3

[0056] This embodiment is similar to embodiment 2, and the difference is that in this embodiment:

[0057] As shown in Figure 1 The handle assembly 36 includes a triangular plate 361 and a handle 362 fixed on the outside of the triangular plate 361. The inside of the triangular plate 361 is fixedly connected with the third driving rod 313, and the inside of the triangular plate 361 is also fixedly connected with the second driving rod 312. Fixing the triangular plate 361 with the third driving rod 313 and the second driving rod 312 can amplify the force and facilitate the user to swing the driving block 31 more easily.

[0058] As shown in Figure 2 The handle assembly 36 can also be symmetrically provided in two groups, and the two groups of handle assemblies 36 are respectively located on the outside of the fork-shaped arm of the support 1 and are fixedly connected with the second driving rod 312 penetrating through the fork-shaped arm.

[0059] As shown in Figure 1 and2 As shown, the handle 362 also has anti-slip texture on the outside, which can improve friction and make it easier for users to grip and apply force.

[0060] The other principles and structures of this embodiment are the same as those of Embodiment 2.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fixing device for machining cylinder head covers, characterized in that, It includes a bracket (1), a snap-fit ​​shaft (2) located at one end of the bracket (1) for snapping into the end slot of the cylinder head cover, a movable clamping member located at the other end of the bracket (1), and a plurality of support members (4) located in the middle of the bracket (1) and inclined toward the outside of the bracket (1).

2. The fixing device for machining cylinder head covers according to claim 1, characterized in that, The support member (4) is plate-shaped, and the end of the support member (4) is bent to form a support surface (41).

3. The fixing device for machining cylinder head covers according to claim 2, characterized in that, The support member (4) includes at least two sets, and the support member (4) is symmetrically arranged on both sides of the middle part of the bracket (1).

4. The fixing device for machining cylinder head covers according to claim 1, characterized in that, The movable clamping component includes a drive block (31), an abutment block (32), a suspension (33), a limiting rod (34), an elastic shaft (35), and a handle assembly (36): a first driving rod (311) is fixed to one end of the drive block (31), one end of the abutment block (32) is rotatably connected to the first driving rod (311), and a second driving rod (312) is fixed to the middle of the drive block (31), the second driving rod (312) passes through the bracket (1) and is rotatably connected to the bracket (1); both ends of the suspension (33) are respectively connected to the other end of the drive block (31) and the elastic shaft (35). One end of the suspension (33) is rotatably connected, and the middle part of the suspension (33) is also provided with a first rotating shaft (331) rotatably connected thereto. One end of the limiting rod (34) is rotatably connected to the first rotating shaft (331), and the other end of the limiting rod (34) is fixedly limited on the bracket (1). The elastic shaft (35) is rotatably connected to the suspension (33) through a second rotating shaft (332), and the other end of the elastic shaft (35) is fixedly connected to the abutment block (32). The other end of the drive block (31) is also fixed with a third drive rod (313), and the handle assembly (36) is fixed on the third drive rod (313).

5. A fixing device for machining cylinder head covers according to claim 4, characterized in that, The elastic shaft (35) includes a concave plate (351) rotatably connected to the second rotating shaft (332), a storage cylinder (352) fixedly connected to the abutment block (32), a movable rod (353) fixedly connected at one end to the concave plate (351), and a spring (354) with both ends fixed on the concave plate (351) and the storage cylinder (352) respectively. The other end of the movable rod (353) is inserted into the storage cylinder (352) for sliding extension and retraction.

6. A fixing device for machining cylinder head covers according to claim 4, characterized in that, The bracket (1) is an X-shaped bracket (1) with two forked arms on both sides. The two ends of the snap-fit ​​shaft (2) are rotatably connected in one forked arm of the bracket (1). The movable clamping member is located in the other forked arm of the bracket (1). The support member (4) is symmetrically distributed on the two forked arms of the bracket (1).

7. A fixing device for machining cylinder head covers according to claim 4, characterized in that, The abutment block (32) includes an abutment head (321) and a sleeve (322) fixedly connected to the abutment head (321). The sleeve (322) is sleeved on the first drive rod (311) and rotatably connected to the first drive rod (311).

8. A fixing device for machining cylinder head covers according to claim 7, characterized in that, The abutment (321) is provided with a sloping abutment portion.

9. A fixing device for machining a cylinder head cover according to claim 8, characterized in that, The end of the inclined surface abutment is provided with an arc-shaped transition section.

10. A fixing device for machining a cylinder head cover according to claim 4, characterized in that, The handle assembly (36) includes a triangular plate (361) and a handle (362) fixed to the outside of the triangular plate (361). The inner side of the triangular plate (361) is fixedly connected to the third drive lever (313), and the inner side of the triangular plate (361) is also fixedly connected to the second drive lever (312).

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