Extended-range type cylinder cover three-groove clamping petal press-fitting tool

Abstract

The utility model discloses a stroke-increasing type cylinder cover three-groove clamping clack press-fitting tool, and belongs to the technical field of range extender assemblies for new energy automobiles. The problems that compared with a single-groove valve clamping flap, a three-groove valve clamping flap of a new energy range extender is difficult to press and cannot be manually pressed are solved, meanwhile, eccentric wear of a valve and a valve seat can be effectively avoided, the installation quality is guaranteed, and the performance of a range extender assembly is improved. The pressing head is arranged above the cylinder cover overturning and positioning mechanism, the pressing head is installed on the pressing mechanism, the pressing mechanism is horizontally installed at the upper end of the pressing table in a sliding mode through a sliding rail, and the pressing head is driven by the pressing mechanism to press the valve clamping flap on the valve rod. According to the utility model, the top surface of the spring is pressed below the valve clamping groove by manually operating the press-fitting device, the valve clamping flap is released by manually pushing the clamping flap shifting sheet, the pressure head is reset upwards, the clamping flap moves into the valve clamping groove along with the valve spring seat under the action of the elastic force of the valve spring, and the press-fitting of the clamping flap is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of range extender assemblies for new energy vehicles, and specifically relates to a range extender cylinder head three-groove clamping flap press-fitting tool. Background Art

[0002] The three-slot valve flap of the new energy range extender is more difficult to press-install than the single-slot valve flap and cannot be press-installed manually. At the same time, the valve and the valve seat are prone to eccentric wear during the installation process, which affects the installation quality. Utility Model Content

[0003] The purpose of the utility model is to provide a three-slot valve flap press-fitting tool for a range-extended cylinder head, which solves the problem that the three-slot valve flap of a new energy range extender is more difficult to press-fit than the single-slot valve flap and cannot be pressed manually, and at the same time can effectively avoid eccentric wear between the valve and the valve seat, ensure the installation quality, and improve the performance of the range extender assembly.

[0004] The technical solution adopted by the utility model is:

[0005] A three-slot clip-flap press-fitting tool for an extended-range cylinder head comprises a press-fitting table, a cylinder head positioning mechanism, a pressure head, a clamping mechanism and a slide rail; a cylinder head positioning mechanism is installed on the table top of the press-fitting table, and the cylinder head positioning mechanism is used to install a cylinder head that has been assembled with a valve stem, a valve spring and a valve spring seat; the pressure head is arranged above the cylinder head positioning mechanism, and the pressure head is installed on the clamping mechanism, and the clamping mechanism is installed on the upper end of the press-fitting table by means of a slide rail for horizontal sliding, and the valve clip is pressed onto the valve stem by driving the pressure head through the clamping mechanism.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] 1. The utility model The utility model uses a manually operated press-fit device to press the top surface of the spring under the valve slot, and manually pushes the valve flap to release the valve flap, and the pressure head is reset upward. The flap moves into the valve slot along with the valve spring seat under the elastic force of the valve spring. Figure 6 , the card flap is pressed and installed.

[0008] 2. The press-fitting process of the utility model is simple and has fewer steps. At the same time, the process method is also suitable for the press-fitting of single-groove valve flaps and has strong popularity.

[0009] 3. The utility model has a simple structure, strong compatibility and low cost.

[0010] 4. The utility model is compatible with the press-fitting of single-groove and three-groove valve flaps.

[0011] 5. The utility model mainly solves the problem that the three-groove valve flap is more difficult to press-install than the single-groove valve flap and cannot be press-installed manually, and is compatible with the press-installation of the three-groove valve flap and the single-groove valve flap. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a side view of the utility model;

[0014] Figure 3 It is a top view of the utility model;

[0015] Figure 4 This is the front view of the pressure head of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the pressure head of the utility model;

[0017] Figure 6 This is a diagram of the valve flap being pressed and assembled;

[0018] Among them: 1. Pressing table; 2. Card flap storage box; 3. Cylinder head positioning mechanism; 4. Press head; 5. Clamping mechanism; 6. Slide rail; 7. Rotating mechanism; 8. Downward operating mechanism; 9. Adsorption device; 11. Internal core shaft of the press head; 12. Card flap paddle; 13. Sliding block; 14. Round tube shell; 15. Valve spring seat; 16. Valve card flap; 17. Valve stem; 801. Press rod; 802. Hand-held rod; 803. Limit roller; 804. Limit rod. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 to Figure 6 As shown, the utility model provides a range-extended cylinder head three-slot flap pressing tool, comprising a pressing table 1, a cylinder head positioning mechanism 3, a pressing head 4, a clamping mechanism 5 and a slide rail 6; a cylinder head positioning mechanism 3 is installed on the table surface of the pressing table 1, and the cylinder head positioning mechanism 3 is used to install a cylinder head that has been assembled with a valve stem 17, a valve spring, and a valve spring seat 15; the pressing head 4 is arranged above the cylinder head positioning mechanism 3, and the pressing head 4 is installed on the clamping mechanism 5, and the clamping mechanism 5 is horizontally slidably installed on the upper end of the pressing table 1 through the slide rail 6, and the pressing head 4 is driven by the clamping mechanism 5 to press the valve flap 16 onto the valve stem 17.

[0021] The center line of the pressure head 4 coincides with the center line of the valve stem 17;

[0022] like Figure 1 , Figure 2As shown, the cylinder head positioning mechanism 3 is installed on the press-fitting table 1 through the rotating mechanism 7.

[0023] The cylinder head positioning mechanism 3 is an existing technology, and the cylinder head positioning mechanism 3 realizes the positioning of the cylinder head assembly through two cylinder head positioning pins and two mounting surfaces, and performs rough positioning.

[0024] The rotating mechanism 7 adopts a rotating support with an angle limit, which is a prior art.

[0025] like Figure 2 As shown, the clamping mechanism 5 includes a slider 13 and a downward operating mechanism 8; the slider 13 is slidably connected to the slide rail 6, the downward operating mechanism 8 is installed on the slider 13, and the pressure head 4 is installed on the downward operating mechanism 8.

[0026] like Figure 2 As shown, the downward operating mechanism 8 includes a pressure rod 801, a hand-held rod 802, a limit roller 803 and a limit rod 804; one end of the hand-held rod 802 is hinged to the front end surface of the slider 13, and an oblong hole is provided on the hand-held rod 802 along its length direction. A round rod slidably connected to the oblong hole is installed on the pressure rod 801. The hand-held rod 802 can drive the pressure rod 801 to move up and down through the round rod and the oblong hole, and the lower end of the pressure rod 801 is used to install the pressure head 4.

[0027] The rear end of the limiting rod 804 is connected to the front end surface of the slider 13, and the front end of the limiting rod 804 is supported on the pressure head 4 through the limiting roller 803 to keep the pressure head 4 moving up and down.

[0028] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the pressure head 4 includes a circular tube shell 14, an adsorption device 9, a pressure head internal core shaft 11 and two flap paddles 12; the pressure head internal core shaft 11 is installed at the center of the circular tube shell 14, and two oppositely arranged mounting grooves are provided on the circular tube shell 14, and the mounting grooves pass through the bottom surface of the circular tube shell 14, and the two flap paddles 12 are respectively embedded and hingedly installed in the corresponding mounting grooves, and the bottom surface of the circular tube shell 14 is provided with an adsorption device 9 for adsorbing the valve flap 16.

[0029] The valve flap storage box 2 is installed on the press-fitting platform 1 and is used to store the valve flap 16 .

[0030] The adsorption device 9 is made of magnet.

[0031] The pressure head 4: ① is used in conjunction with the clamping mechanism 5, and is mainly responsible for the suction and delivery of the valve flap 16. ② is used in conjunction with the clamping mechanism 5, and is responsible for the downward compression process of the cylinder head valve spring.

[0032] The clamping mechanism 5 is responsible for compressing the valve spring stroke downwards, so that the valve flap 16 can automatically slide down into the valve spring seat 15 through the flap feeding mechanism.

[0033] The press-fitting method of the utility model comprises the following steps:

[0034] S1. Manually assemble the valve stem 17, valve spring, valve spring seat 15 of the cylinder head, align the positioning point on the cylinder head positioning mechanism 3 and place it on the cylinder head positioning mechanism 3;

[0035] S2. Manually take two valve flaps 16 from the flap storage box 2, and adsorb the valve flaps 16 on the pressure head 4 by the adsorption device 9;

[0036] S3. Manually operated clamping mechanism 5 presses the valve flap 16 onto the valve slot of the valve stem 17;

[0037] S31. Manually move the clamping mechanism 5 through the slide rail 6 to the corresponding cylinder head valve position;

[0038] S32. Manually press the operating mechanism 8 downward to move the pressure head 4 downward, and the pressure head 4 compresses the valve spring downward to the lower end of the valve retaining spring groove. The inner core shaft 11 of the pressure head contacts the head of the valve stem 17. The flap paddle 12 is manually pushed to make the flap paddle 12 inside the pressure head 4 contract inward. The flap paddle 12 moves the valve flap 16, so that the valve flap 16 on the adsorption device 9 falls into the valve spring seat 15.

[0039] S33. The downward operating mechanism 8 is reset upward by the valve spring, the pressure head 4 returns, the valve spring works upward, the valve flap 16 is pushed to the valve slot under the elastic force of the valve spring, and a single flap is pressed and installed, such as Figure 6 The structure is shown.

[0040] S34. Manually move the pressure head 4 to the next cylinder limit position to press-fit the intake-side or exhaust-side valve flap 16.

[0041] S4. Manually switch the intake side and exhaust side of the cylinder head assembly through the rotating mechanism 7, repeat the operations S2 and S3, and press-fit the valve flaps 16 at the remaining positions until all are completed.

[0042] Through the above-mentioned utility model design, the press-fitting of the three-groove valve flap 16 can be realized, and the press-fitting qualification rate is 100%, which effectively solves the problem that the three-groove valve flap 16 cannot be press-fitted. At the same time, the pressure head is quick-change type. By replacing the pressure head, the remaining structure remains unchanged, which can effectively solve the problem that the three-groove valve flap 16 cannot be disassembled, greatly reducing the production and procurement costs.

[0043] The mechanism is not only suitable for the press-fitting of the three-groove valve flap 16 , but also suitable for the press-fitting of the single-groove valve flap 16 .

[0044] The utility model manually operates the pressing tool to press the top surface of the spring under the valve slot, and manually pushes the lever to release the valve flap 16, so that the valve spring elastic force pushes the valve spring seat 15, so that the valve flap 16 moves to the corresponding assembly position of the valve stem, and the pressing is completed. Figure 1 .

[0045] The three-slot valve flap manual press-fitting tool of the range extender mainly operates the press-fitting tool manually to press the top surface of the spring under the valve slot, releases the valve flap by manually pushing the lever, and the pressure head resets upward. The elastic force of the valve spring pushes the valve flap to the corresponding assembly position of the valve stem, and the press-fitting is completed.

[0046] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A three-slot clamping tool for a range-extended cylinder head, characterized in that: The invention comprises a press-fitting platform (1), a cylinder head positioning mechanism (3), a pressing head (4), a clamping mechanism (5) and a slide rail (6); a cylinder head positioning mechanism (3) is installed on the platform of the press-fitting platform (1), and the cylinder head positioning mechanism (3) is used to install a cylinder head that has been assembled with a valve stem (17), a valve spring and a valve spring seat (15); the pressing head (4) is arranged above the cylinder head positioning mechanism (3), the pressing head (4) is installed on the clamping mechanism (5), and the clamping mechanism (5) is installed on the upper end of the press-fitting platform (1) by means of a slide rail (6) to slide horizontally, and the pressing head (4) is driven by the clamping mechanism (5) to press-fit the valve flap (16) onto the valve stem (17).

2. The three-slot clamping tool for the extended-range cylinder head according to claim 1, characterized in that: The cylinder head positioning mechanism (3) is installed on the press-fitting platform (1) via a rotating mechanism (7).

3. The three-slot clamping tool for the extended-range cylinder head according to claim 1, characterized in that: The clamping mechanism (5) comprises a slider (13) and a downward operating mechanism (8); the slider (13) is slidably connected to the slide rail (6), the downward operating mechanism (8) is mounted on the slider (13), and the pressure head (4) is mounted on the downward operating mechanism (8).

4. The three-slot clamping tool for the extended-range cylinder head according to claim 3, characterized in that: The downward operating mechanism (8) comprises a pressure rod (801) and a hand-held rod (802); one end of the hand-held rod (802) is hinged to the front end surface of the slider (13); an oblong hole is provided on the hand-held rod (802) along its length direction; a round rod slidably connected to the oblong hole is installed on the pressure rod (801); the hand-held rod (802) can drive the pressure rod (801) to move up and down through the round rod and the oblong hole; the lower end of the pressure rod (801) is used to install the pressure head (4).

5. The three-slot clamping tool for the extended-range cylinder head according to claim 4, characterized in that: The downward operating mechanism (8) further comprises a limiting roller (803) and a limiting rod (804); the rear end of the limiting rod (804) is connected to the front end surface of the slider (13), and the front end of the limiting rod (804) is supported on the pressure head (4) through the limiting roller (803).

6. A three-slot clamping tool for a range-extended cylinder head according to claim 4 or 5, characterized in that: The pressure head (4) comprises a circular tube shell (14), an adsorption device (9), a pressure head internal core shaft (11) and two flap paddles (12); the pressure head internal core shaft (11) is installed at the center of the circular tube shell (14); two installation grooves arranged opposite to each other are provided on the circular tube shell (14), and the installation grooves penetrate the bottom surface of the circular tube shell (14); the two flap paddles (12) are respectively embedded in the corresponding installation grooves and hingedly installed; the bottom surface of the circular tube shell (14) is provided with an adsorption device (9) for adsorbing the valve flap (16).

7. The three-slot clamping tool for the extended-range cylinder head according to claim 1, characterized in that: The flap storage box (2) is mounted on the press-fitting platform (1) and is used to store the valve flaps (16).

Images