Automatic press-fitting equipment for cylinder cover

Abstract

The invention belongs to the technical field of cylinder machining, and discloses automatic cylinder cover press-fitting equipment which comprises a base, a clamp and a press-fitting assembly. The clamp is used for clamping a cylinder cover provided with a water channel opening; the press-fitting assembly comprises an upper pressing piece capable of abutting against the periphery of the water channel opening from top to bottom and a material taking piece capable of penetrating through the water channel opening, and the material taking piece sucks water blockage supported on the base through negative pressure. The upper pressing piece comprises an upper pressing frame and a pressing rod installed at the bottom of the upper pressing frame. The material taking part comprises a threaded outer sleeve rotationally installed on the upper pressing frame, a threaded inner rod is connected into the threaded outer sleeve in a screwed mode through threads, and a negative suction head is connected to the bottom of the threaded inner rod. In conclusion, the automatic negative suction device picks up water blockage and presses the water blockage into the water channel opening, positioning and positioning are accurate, the press fitting efficiency is high, in addition, the edge of the water channel opening is further supported in the press fitting process through cooperation of the upper pressing piece, the situation that the edge of the water channel opening is deformed due to too large press fitting pressure is effectively avoided, and the press fitting quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cylinder processing, and in particular relates to an automatic press-fitting device for a cylinder cover. Background Art

[0002] The cylinder head is a cover on the engine cylinder, which can prevent foreign matter from entering the engine and also plays a sealing role. When assembling the cylinder head, it is necessary to press a water plug into the waterway opening of the cylinder head to ensure the seal. The traditional press-fitting method is to manually put the water plug into the waterway opening and then manually hammer it to fix it. However, the hammering process can easily cause the force of the water plug to deviate, which is time-consuming and labor-intensive, and it is difficult to ensure the assembly quality. Summary of the invention

[0003] In view of this, in order to solve the problems raised in the above background technology, the object of the present invention is to provide an automatic press-fitting device for a cylinder head.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An automatic press-fitting device for a cylinder head, comprising a base, a fixture and a press-fitting assembly;

[0006] The base is used to support the cylinder head water plug;

[0007] The clamp is used to clamp the cylinder head with a water channel opening;

[0008] The press-fitting assembly comprises an upper pressing piece capable of abutting against the periphery of the waterway opening from top to bottom and a material taking piece capable of passing through the waterway opening, wherein the material taking piece negatively pressures the water blockage of the cylinder head supported on the base.

[0009] Preferably, a bracket is fixed on the base, the clamp is installed on the bracket, and a screw mechanism for driving the press-fitting assembly to move is also installed on the bracket.

[0010] Preferably, the upper pressing member includes an upper pressing frame and a pressing rod installed at the bottom of the upper pressing frame.

[0011] Preferably, the press-fitting assembly further comprises a lifting cylinder, and the bottom of the lifting cylinder is fixedly connected to the upper press frame.

[0012] Preferably, the material picking member comprises a threaded outer sleeve rotatably mounted on the upper press frame, and a threaded inner rod is connected to the threaded outer sleeve by threaded engagement, and a negative suction head is connected to the bottom of the threaded inner rod.

[0013] Preferably, the upper press frame comprises a top plate, an intermediate plate and a bottom plate fixedly connected by vertical rods, and the press rod is installed at the bottom of the bottom plate, and the threaded sleeve is rotatably installed between the intermediate plate and the bottom plate.

[0014] Preferably, the negative suction head includes a center rod fixed to the bottom of the threaded inner rod and a plurality of outer expansion rings coaxially assembled in sequence from the inside to the outside.

[0015] Preferably, a center hole is opened at the center of the center rod, a first guide ring groove is opened on the outer wall of the center rod, and a plurality of first guide holes are evenly connected between the center hole and the first guide ring groove.

[0016] Preferably, a diverter ring cavity is provided inside the outer expansion ring, a plurality of negative suction holes connected with the diverter ring cavity are provided at the bottom of the outer expansion ring, a second guide ring groove is provided on the outer wall of the outer expansion ring, and a plurality of second guide holes are evenly connected between the first guide ring groove, the diverter ring cavity and the second guide ring groove.

[0017] Preferably, a connecting thread is provided on the inner wall of the outer expansion ring, a thread groove is provided on the outer wall of the outer expansion ring, and a sealing sleeve is provided on the outer sliding sleeve of the outer expansion ring, and a spring is connected between the sealing sleeve and the top of the outer expansion ring.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The automatic negative suction of the present invention picks up the water blockage and presses it into the waterway outlet, positioning and accuracy are achieved, and the press-fitting efficiency is high. In addition, the edge of the waterway outlet is further supported during press-fitting through the cooperation of the upper pressing piece, thereby effectively avoiding deformation of the edge of the waterway outlet due to excessive press-fitting pressure, thereby improving the press-fitting quality.

[0020] (2) A module-assembled negative suction head is provided so that the overall device can effectively press-fit water plugs of different sizes onto the cylinder head.

[0021] (3) A sealing sleeve is arranged outside the outer expansion ring so that air is only taken in from the bottom of the whole negative suction head, thereby ensuring the negative suction stability and not affecting the assembly connection of multiple outer expansion rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 is a cross-sectional view of a press-fit assembly;

[0024] Figure 3 is a cross-sectional view of the negative suction head;

[0025] Figure 4 is a cross-sectional view of the outer expansion ring;

[0026] In the figure: base-1; screw mechanism-11; fixture-2; press-fitting assembly-3; upper pressing piece-31; material picking piece-32; upper pressing frame-33; pressing rod-34; threaded outer sleeve-35; threaded inner rod-36; negative suction head-37; lifting cylinder-38; center rod-01; outer expansion ring-02; sealing sleeve-03; spring-04. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, an automatic press-fitting device for a cylinder head provided by the present invention comprises a base 1 , a fixture 2 and a press-fitting assembly 3 .

[0029] Continue to refer Figure 1 As shown, the base 1 is used to support the water plugging of the cylinder head, and a bracket is fixed on the base 1, the clamp 2 (as shown in the figure, the clamp 2 includes a clamping cylinder, a clamping claw and other structures) is installed on the bracket, and the bracket is also equipped with a screw mechanism 11 for driving the press-fitting assembly 3 to move (as shown in the figure, the screw mechanism 11 includes a screw, a motor, a slide seat and other structures).

[0030] Continue to refer Figure 1 and Figure 2 As shown, the press assembly 3 includes a lifting cylinder 38, an upper pressing member 31 and a material picking member 32. The upper pressing member 31 includes an upper pressing frame 33 and a pressing rod 34 installed at the bottom of the upper pressing frame 33, and the lifting cylinder 38 is fixed between the slide and the upper pressing frame 33. The material picking member 32 includes a threaded outer sleeve 35 rotatably installed on the upper pressing frame 33, and a threaded inner rod 36 is connected to the threaded outer sleeve 35 through a threaded screw connection, the threaded inner rod 36 is slidably connected to the upper pressing frame 33, and a negative suction head 37 is connected to the bottom of the threaded inner rod 36.

[0031] Specifically, the upper pressure frame 33 includes a top plate, a middle plate and a bottom plate fixedly connected by vertical rods, and the pressure rod 34 is installed at the bottom of the bottom plate, the threaded sleeve 35 is rotatably installed between the middle plate and the bottom plate, the threaded inner rod 36 slides through the bottom plate, and a motor for driving the threaded sleeve 35 to rotate is installed between the top plate and the middle plate.

[0032] From the above, we can know that when the cylinder head is automatically pressed:

[0033] First, clamp and fix the cylinder head to be press-fitted on the fixture 2;

[0034] After the cylinder head is fixed, the water plug is placed on the base 1 according to the position of the water outlet opened on the cylinder head, and it is ensured that there is a corresponding water plug directly below each water outlet;

[0035] Start the screw mechanism 11 to drive the integral press-fit assembly 3 to move to the top of the waterway outlet;

[0036] Start the lifting cylinder 38 to drive the upper pressing piece 31 and the material taking piece 32 to descend, the negative suction head 37 of the material taking piece 32 passes through the waterway opening, and the pressure rod 34 of the upper pressing piece 31 gradually approaches and contacts the waterway opening;

[0037] Stop the lifting cylinder 38, start the motor to drive the threaded outer sleeve 35 to rotate forward, the threaded outer sleeve 35 and the threaded inner rod 36 are screwed together, and then drive the threaded inner rod 36 to slide through the bottom plate and move downward until the negative suction head 37 contacts and absorbs the water on the base 1 to block it;

[0038] The starting motor drives the threaded outer sleeve 35 to rotate in the opposite direction, thereby driving the threaded inner rod 36 to slide through the bottom plate and move upward, thereby driving the negative suction head 37 and the water plug to be pressed into the waterway outlet to complete the press installation.

[0039] Further, regarding the specific structure of the negative suction head 37, refer to Figure 3 and Figure 4 It can be seen that the negative suction head 37 includes a central rod 01 fixed to the bottom of the threaded inner rod 36 and a plurality of outer expansion rings 02 coaxially assembled in sequence from the inside to the outside.

[0040] A center hole is provided at the center of the center rod 01, a first guide ring groove is provided on the outer wall of the center rod 01, and a plurality of first guide holes are evenly connected between the center hole and the first guide ring groove;

[0041] A flow diversion ring cavity b is provided inside the outer expansion ring 02, a plurality of negative suction holes d connected to the flow diversion ring cavity b are provided at the bottom of the outer expansion ring 02, a second flow guide ring groove a is provided on the outer wall of the outer expansion ring 02, and a plurality of second flow guide holes c are evenly connected between the first flow guide ring groove, the flow diversion ring cavity b and the second flow guide ring groove a;

[0042] The inner wall of the outer expansion ring 02 is provided with a connecting thread, the outer wall of the outer expansion ring 02 is provided with a thread groove, and the outer sliding sleeve of the outer expansion ring 02 is provided with a sealing sleeve 03, and a spring 04 is also connected between the sealing sleeve 03 and the top of the outer expansion ring 02.

[0043] In summary, combined with Figure 3 and Figure 4It can be seen from the structure that when installing the negative suction head 37, the negative suction head 37 can be combined and adjusted according to the actual size of the waterway outlet and the water blockage (installing different numbers of outer expansion rings 02 can make the negative suction head 37 have different outer diameters). When installing the outer expansion ring 02:

[0044] The innermost outer expansion ring 02A is screwed to the central rod 01;

[0045] The outer expansion ring 02B ​​is spirally fixed to the outer expansion ring 02A; when the outer expansion ring 02B ​​is rotated and fixed, the outer expansion ring 02B ​​will gradually push the sealing sleeve 03A outside the outer expansion ring 02A to move upward, thereby stretching the spring 04A, thereby ensuring that the outer expansion ring 02B ​​can be connected with the second guide hole c of the outer expansion ring 02A, and the sealing sleeve 03B outside the outer expansion ring 02B ​​is not limited by any external force, so the sealing sleeve 03B forms a seal with the second guide ring groove a of the outer expansion ring 02B, thereby ensuring that the overall negative suction head 37 can achieve effective negative suction.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic press-fitting device for a cylinder head, characterized in that: It comprises a base (1), a clamp (2) and a press-fit assembly (3); The base (1) is used to support the cylinder head water plug; The clamp (2) is used to clamp a cylinder head provided with a water channel opening; The press-fitting assembly (3) comprises an upper pressing piece (31) capable of abutting against the periphery of the waterway opening from top to bottom, and a material taking piece (32) capable of passing through the waterway opening, wherein the material taking piece (32) uses negative pressure to absorb water from the cylinder head supported on the base (1).

2. The automatic cylinder head press-fitting device according to claim 1, characterized in that: A bracket is fixed on the base (1), the clamp (2) is mounted on the bracket, and a screw mechanism (11) for driving the press-fitting assembly (3) to move is also mounted on the bracket.

3. The automatic cylinder head press-fitting device according to claim 1, characterized in that: The upper pressing member (31) comprises an upper pressing frame (33) and a pressing rod (34) installed at the bottom of the upper pressing frame (33).

4. The automatic cylinder head press-fitting device according to claim 3, characterized in that: The press-fitting assembly (3) further comprises a lifting cylinder (38), and the bottom of the lifting cylinder (32) is fixedly connected to the upper press frame (33).

5. The automatic cylinder head press-fitting device according to claim 3, characterized in that: The material picking member (32) comprises a threaded outer sleeve (35) rotatably mounted on the upper pressing frame (33), and a threaded inner rod (36) is screwed into the threaded outer sleeve (35) via a threaded connection, and a negative suction head (37) is connected to the bottom of the threaded inner rod (36).

6. The automatic cylinder head press-fitting device according to claim 5, characterized in that: The upper pressing frame (33) comprises a top plate, an intermediate plate and a bottom plate fixedly connected by vertical rods, and the pressing rod (34) is installed at the bottom of the bottom plate, and the threaded sleeve (35) is rotatably installed between the intermediate plate and the bottom plate.

7. The automatic cylinder head press-fitting device according to claim 6, characterized in that: The negative suction head (37) comprises a central rod (01) fixed to the bottom of the threaded inner rod (36) and a plurality of outer expansion rings (02) coaxially assembled in sequence from the inside to the outside.

8. The cylinder head automatic press-fitting device according to claim 7, characterized in that: A center hole is provided at the center of the center rod (01), a first flow guide ring groove is provided on the outer wall of the center rod (01), and a plurality of first flow guide holes are evenly connected between the center hole and the first flow guide ring groove.

9. The automatic cylinder head press-fitting device according to claim 8, characterized in that: A flow diversion ring cavity is provided inside the outer expansion ring (02), a plurality of negative suction holes connected to the flow diversion ring cavity are provided at the bottom of the outer expansion ring (02), a second flow guide ring groove is provided on the outer wall of the outer expansion ring (02), and a plurality of second flow guide holes are evenly connected between the first flow guide ring groove, the flow diversion ring cavity and the second flow guide ring groove.

10. The cylinder head automatic press-fitting device according to claim 9, characterized in that: The inner wall of the outer expansion ring (02) is provided with a connecting thread, the outer wall of the outer expansion ring (02) is provided with a thread groove, and the outer sliding sleeve of the outer expansion ring (02) is provided with a sealing sleeve (03), and a spring (04) is also connected between the sealing sleeve (03) and the top of the outer expansion ring (02).

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