Universal cylinder cover clamp

Abstract

The utility model discloses a universal cylinder cover clamp, which relates to the technical field of clamping tools and comprises a rotary table, a tool table is arranged in the rotary table and comprises a lower table plate, an upper table plate is fixedly mounted at the top of the lower table plate, a plurality of ejector rods are movably mounted in the upper table plate, guide rails are fixedly mounted on two sides of the bottom of the upper table plate, and sliders are movably mounted on the guide rails. A movable air cylinder clamp is fixedly installed at the top of the sliding block, and a fixed air cylinder clamp is further fixedly installed between the two ejector rods. A plurality of jacking rods capable of moving up and down are installed in the upper table plate in a penetrating mode, and two sets of guide rails, sliding blocks, take-up wheels and other structures are matched, so that after cylinder covers of different sizes are placed on the jacking rods, the upper table plate moving downwards and the take-up wheels are facilitated, and a steel wire rope drives two movable air cylinder clamps to move to one sides of the cylinder covers; and therefore, cylinder covers of different sizes can be quickly clamped and fixed in cooperation with a fixed cylinder clamp, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping workpieces, in particular to a general cylinder head fixture. Background Art

[0002] The engine cylinder head is a cover that closes the cylinder and forms the combustion chamber. The main function of the cylinder head is to jointly seal the combustion chamber with the cylinder block, piston, piston ring, etc., to ensure that after the fuel and air are mixed, under the action of the spark plug or fuel injector, efficient combustion occurs in the closed space, and then the piston is pushed to move, converting into mechanical energy to drive the vehicle;

[0003] After the casting of the engine cylinder head is completed, further grinding or inspection will be carried out on the cylinder head. During the above operation process, the cylinder head needs to be clamped through a clamping operation. For example, the Chinese utility model patent disclosed in the publication number CN220348158U: A cylinder head fixture. This application sets an adjustment knob to drive the rotating rod and two second bevel gears to rotate. Cooperating with the first bevel gear, the corresponding bidirectional lead screw rotates simultaneously. Cooperating with the clamping components arranged on the surface of the bidirectional lead screw, the corresponding two moving blocks and the L-shaped placement plate can move towards each other simultaneously, so as to clamp and fix the cylinder head. Although this application can quickly clamp and fix the cylinder head, since the four L-shaped placement plates can only adjust the distance in the X-axis direction, only cylinder heads with the same length or width can be clamped and fixed, thus unable to adapt to cylinder heads of other sizes. In addition, when clamping and fixing the engine cylinder head with the four L-shaped placement plates in this application, it is necessary to first adjust the four L-shaped placement plates to appropriate positions, then place the steel cover on the four L-shaped placement plates, and then adjust two of the L-shaped placement plates with the help of components such as the bidirectional lead screw to achieve the clamping of the cylinder head, making the operation process less convenient. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a general cylinder head fixture, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A general cylinder head fixture includes a turntable. A workbench is arranged inside the turntable. The workbench includes a lower platen. An upper platen is fixedly installed on the top of the lower platen. A plurality of ejector rods are movably installed inside the upper platen. Guide rails are fixedly installed on both sides of the bottom of the upper platen. Sliders are movably installed on the guide rails. An active cylinder fixture is fixedly installed on the top of the slider. A fixed cylinder fixture is fixedly installed between two of the ejector rods. Two wire reels are movably installed on the upper platen between the two guide rails.

[0007] Preferably, a plurality of fixed shafts are fixedly installed at the top of the lower platen. With the arrangement of the fixed shafts, the ejector rod can be inserted into the upper platen and the separation of the ejector rod from the upper platen can be restricted.

[0008] Preferably, an installation groove is formed in the ejector rod. The bottom of the ejector rod passes through the corresponding through groove in the upper platen and is inserted onto the fixed shaft. A snap ring is installed on the fixed shaft located in the installation groove, and a first compression spring is sleeved on the fixed shaft between the lower platen and the ejector rod. Inserting the ejector rod into the upper platen through the fixed shaft and the first compression spring can realize the vertical lifting movement of the ejector rod.

[0009] Preferably, two toothed plates are respectively fixedly installed on one side of two of the ejector rods.

[0010] Preferably, a wheel bracket is fixedly installed on the upper platen between the guide rail and the ejector rod. Gears are fixedly installed on both sides of the wire reel. Rotating shafts are fixedly installed at the central positions on one side of the two gears. The wire reel and the two gears are rotatably installed in the wheel bracket through the two rotating shafts. The two gears are respectively meshed with the corresponding toothed plates.

[0011] Preferably, a chute is formed in the guide rail.

[0012] Preferably, a fixed buckle is fixedly installed at the bottom of the slider. A steel wire rope is fixedly installed between the fixed buckle and the slider. The other end of the steel wire rope is wound around the corresponding wire reel.

[0013] Preferably, a connecting rod is inserted through the through groove in the upper platen above the guide rail. A second compression spring is sleeved on the connecting rod between the slider and the through groove. After pressing down the ejector rod, the toothed plates on one side of two of the ejector rods are respectively meshed with the corresponding gears, thereby driving the wire reel to rotate and cooperating with the steel wire rope to pull the slider, so that one side of the movable cylinder clamp abuts against one side of the cylinder head, and cooperating with the fixed cylinder clamp to clamp and fix cylinder heads of different sizes.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] For the general cylinder head clamp of the utility model, a plurality of liftable and movable ejector rods are inserted into the upper platen, and cooperating with two groups of structures such as guide rails, sliders, and wire reels, after placing cylinder heads of different sizes on the plurality of ejector rods, it is beneficial for the lower moving upper platen, wire reel, and steel wire rope to drive the two movable cylinder clamps to move to one side of the cylinder head, thereby cooperating with the fixed cylinder clamp to quickly clamp and fix cylinder heads of different sizes and improving the operation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 Structural schematic diagram of the tooling table of the present utility model;

[0018] Figure 3 Cross-sectional view of the tooling table of the present utility model;

[0019] Figure 4 is Figure 3 Enlarged view of location A in

[0020] Figure 5 Structural schematic diagram of the guide rail of the present utility model;

[0021] Figure 6 Exploded structural schematic diagram of the wheel frame and wire reel of the present utility model;

[0022] Figure 7 is Figure 3 Enlarged view of location B in

[0023] In the figure: 1, turntable; 2, tooling table; 3, lower platen; 4, upper platen; 5, ejector rod; 6, guide rail; 7, slider; 8, movable cylinder fixture; 9, fixed cylinder fixture; 10, wire reel; 11, installation groove; 12, fixed shaft; 13, first compression spring; 14, toothed plate; 15, wheel frame; 16, gear; 17, rotating shaft; 18, chute; 19, fixed buckle; 20, steel wire rope; 21, connecting rod; 22, second compression spring. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0025] As Figures 1 - 7 shown, a general cylinder head fixture provided by the present utility model includes a turntable 1. A tooling table 2 is arranged inside the turntable 1. The tooling table 2 includes a lower platen 3. An upper platen 4 is fixedly installed on the top of the lower platen 3. A plurality of ejector rods 5 are movably installed inside the upper platen 4. Guide rails 6 are fixedly installed on both sides of the bottom of the upper platen 4. Sliders 7 are movably installed on the guide rails 6. A movable cylinder fixture 8 is fixedly installed on the top of the slider 7. A fixed cylinder fixture 9 is also fixedly installed between two of the ejector rods 5. Two wire reels 10 are movably installed on the upper platen 4 between the two guide rails 6.

[0026] As Figures 3 - 4 , Figure 6As shown in the figure, a plurality of fixed shafts 12 are fixedly installed at the top of the lower platen 3. By means of the arrangement of the fixed shafts 12, the ejector rod 5 can be inserted and installed in the upper platen 4 and the separation of the ejector rod 5 from the upper platen 4 can be restricted. An installation groove 11 is formed in the ejector rod 5. The bottom of the ejector rod 5 passes through the corresponding through groove in the upper platen 4 and is inserted and installed on the fixed shaft 12. A snap spring is clamped on the fixed shaft 12 located in the installation groove 11. A first compression spring 13 is sleeved on the fixed shaft 12 between the lower platen 3 and the ejector rod 5. By inserting and installing the ejector rod 5 in the upper platen 4 through the fixed shaft 12 and the first compression spring 13, the vertical lifting movement of the ejector rod 5 can be realized. Two toothed plates 14 are respectively fixedly installed on one side of two of the ejector rods 5. A wheel bracket 15 is fixedly installed on the upper platen 4 between the guide rail 6 and the ejector rod 5. Gears 16 are fixedly installed on both sides of the wire reel 10. Rotating shafts 17 are fixedly installed at the central positions on one side of the two gears 16. The wire reel 10 and the two gears 16 are rotatably installed in the wheel bracket 15 through the two rotating shafts 17. The two gears 16 are respectively meshed with the corresponding toothed plates 14;

[0027] As Figures 3 - 7 shown in the figure, a chute 18 is formed in the guide rail 6. A fixed buckle 19 is fixedly installed at the bottom of the slider 7. A steel wire rope 20 is fixedly installed between the fixed buckle 19 and the slider 7. The other end of the steel wire rope 20 is wound around the corresponding wire reel 10. A connecting rod 21 is inserted and installed in the through groove in the upper platen 4 above the guide rail 6. A second compression spring 22 is sleeved on the connecting rod 21 between the slider 7 and the through groove. After the ejector rod 5 is pressed down, the toothed plates 14 on one side of two of the ejector rods 5 are respectively meshed with the corresponding gears 16, so as to drive the wire reel 10 to rotate and cooperate with the steel wire rope 20 to pull the slider 7, and then the side of the movable cylinder clamp 8 can be abutted against one side of the cylinder head, and the cylinder clamps of different sizes can be clamped and fixed in cooperation with the fixed cylinder clamp 9.

[0028] It should be noted that the present utility model is a general cylinder head fixture. When clamping and fixing the engine cylinder head, the cylinder head can be placed on multiple ejector rods 5, and the rear side of the cylinder head is made to abut against the front side position of the fixed cylinder fixture 9. Then, the self-weight of the cylinder head is used to press down the multiple ejector rods 5. As a result, the ejector rods 5 move downward in the corresponding through grooves in the upper platen 4 and simultaneously move in an interspersed manner on the corresponding fixed shafts 12, so that the ejector rods 5 compress the first compression springs 13 outside the fixed shafts 12 onto the lower platen 3. Moreover, the two toothed plates 14 on one side of two of the ejector rods 5 respectively drive the gears 16 on both sides of the corresponding wire reel 10 to rotate, and further cause the wire reel 10 to gradually wind up the corresponding wire ropes 20. Thus, the two wire ropes 20 respectively drive the corresponding sliders 7 to move relatively on the corresponding guide rails 6, and the two sliders 7 can synchronously drive the movable cylinder fixtures 8 at the top to move relatively. Also, the sliders 7 compress the second compression springs 22 outside the connecting rods 21 into the corresponding through grooves on one side of the upper platen 4. Then, the two movable cylinder fixtures 8 move to one side respectively and abut against one side of the cylinder head, and the continuous downward movement of the ejector rods 5 can be stopped. Then, by starting the movable cylinder fixture 8 and the fixed cylinder fixture 9 through an external controller, the cylinder head can be clamped and fixed;

[0029] When removing the cylinder head, the movable cylinder fixture 8 and the fixed cylinder fixture 9 can be first brought into contact to clamp the cylinder head, and then the cylinder head can be taken out. As a result, after the ejector rods 5 are not stressed, the ejector rods 5 are jacked up by the rebounding force of the first compression springs 13. At the same time, the second compression springs 22 stretch and rebound, and further cause the sliders 7 to move back to their original positions on the guide rails 6.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A general cylinder head fixture, characterized in that: It includes a turntable (1), and a tooling table (2) is arranged inside the turntable (1). The tooling table (2) includes a lower platen (3). A upper platen (4) is fixedly installed on the top of the lower platen (3). A plurality of ejector rods (5) are movably installed inside the upper platen (4). Guide rails (6) are fixedly installed on both sides of the bottom of the upper platen (4). Sliders (7) are movably installed on the guide rails (6). A movable cylinder clamp (8) is fixedly installed on the top of the slider (7). A fixed cylinder clamp (9) is also fixedly installed between two of the ejector rods (5). Two wire reels (10) are movably installed on the upper platen (4) between the two guide rails (6).

2. The general cylinder head fixture according to claim 1, wherein: A plurality of fixed shafts (12) are fixedly installed on the top of the lower platen (3).

3. The general cylinder head fixture according to claim 2, characterized in that: An installation groove (11) is formed inside the ejector rod (5). The bottom of the ejector rod (5) passes through a corresponding through groove inside the upper platen (4) and is inserted and installed on the fixed shaft (12). A snap ring is clamped on the fixed shaft (12) located inside the installation groove (11). A first compression spring (13) is sleeved on the fixed shaft (12) between the lower platen (3) and the ejector rod (5).

4. A general cylinder head fixture according to claim 1, characterized in that: Two rack plates (14) are respectively fixedly installed on one side of two of the ejector rods (5).

5. The general cylinder head fixture according to claim 4, characterized in that: A wheel bracket (15) is fixedly installed on the upper platen (4) between the guide rail (6) and the ejector rod (5). Gears (16) are fixedly installed on both sides of the wire reel (10). A rotating shaft (17) is fixedly installed at the center position of one side of each of the two gears (16). The wire reel (10) and the two gears (16) are rotationally installed inside the wheel bracket (15) through the two rotating shafts (17). The two gears (16) are respectively meshed and connected with the corresponding rack plates (14).

6. The general cylinder head fixture according to claim 5, characterized in that: A chute (18) is formed inside the guide rail (6).

7. The general cylinder head fixture according to claim 6, characterized in that: A fixed buckle (19) is fixedly installed on the bottom of the slider (7). A steel wire rope (20) is fixedly installed between the fixed buckle (19) and the slider (7). The other end of the steel wire rope (20) is wound around the corresponding wire reel (10).

8. The general cylinder head fixture according to claim 7, characterized in that: A connecting rod (21) is inserted and installed through a through groove inside the upper platen (4) at a position above the guide rail (6). A second compression spring (22) is sleeved on the connecting rod (21) between the slider (7) and the through groove.

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