CN211708566U - A valve lock clamping and pressing machine - Google Patents

Abstract

The utility model discloses a valve lock clamping press machine, which comprises a base, a screw rod fixing bracket, a screw rod, a pressing block and a guide pin, which is characterized in that the screw rod fixing bracket is arranged on the base; the The screw rod is longitudinally arranged, the upper end is threadedly connected with the screw rod fixing bracket, and the lower end is arranged opposite to the pressure block; the pressure block is provided with a pin hole matched with the guide pin and the valve lock clip assembly hole. The utility model has the advantages of simple structure, convenient and quick operation and short assembly time, which can greatly improve the work efficiency and reduce the production cost.

Description

A valve lock clamping and pressing machine

technical field

The utility model relates to an auxiliary device for an automobile engine, in particular to an auxiliary special equipment required for assembling an engine valve lock clip, in particular to a valve lock clip press-fitting machine.

Background technique

As we all know, there are valves on the engine cylinders, and the tops of the valves are fitted with springs and valve lock clips. The valve lock is clamped between the end of the valve and the spring seat, and is embedded in the groove of the end of the valve. Usually, when assembling the valve lock clip, it is necessary to compress the valve spring until the valve is exposed, and during this process, each spring will generate a tension of 1000N, which cannot be achieved by hand, and needs to be realized with the help of special tools. However, the existing press-fitting tools and methods are time-consuming and labor-intensive, which affects the assembly progress.

SUMMARY OF THE INVENTION

The utility model aims to solve the above-mentioned technical problems existing in the prior art, and aims to provide a tool that can assemble the valve lock clip conveniently and quickly, so as to shorten the assembling time, improve the working efficiency and reduce the working cost.

In order to solve the above-mentioned problems, the utility model adopts the following technical scheme: a valve lock clamping and pressing machine, including a base, a screw rod fixing bracket, a screw rod, a pressing block and a guide pin, and it is characterized in that the screw rod fixing bracket is arranged on the on the base; the screw rod is longitudinally arranged, the upper end is threadedly connected with the screw rod fixing bracket, and the lower end is arranged opposite to the pressure block; the pressure block is provided with the guide pin to cooperate with pin holes and valve lock clip mounting holes.

The utility model relates to a valve lock clamping and pressing machine. The engine cylinder head assembly is placed on the operating table, the pressure block and the engine cylinder head assembly are positioned with guide pins, and the air gun sleeve is aligned with the head of the screw rod. Start the air gun, press and screw the pressure block to the desired position, so that the card groove at the end of the valve is exposed; then insert the valve lock clip into the card groove; finally, start the air gun in the reverse direction, release the pressure block, and complete the valve lock Clamp installation.

The utility model has the advantages of simple structure, convenient and quick operation and short assembly time, which can greatly improve the work efficiency and reduce the production cost.

Generally speaking, there are ready-made consoles at the assembly site that can be shared with other workstations. When there is no ready-made console, a console can be designed on the base.

As an improvement of the present invention, the screw rod fixing bracket is connected with the transverse guide rail fixed on the base through a linear bearing. In this way, a plurality of workstations can be set on the operating table, and the engine cylinder head assembly to be processed is placed on each workstation. The screw rod fixing bracket and the screw rod assembly can be moved laterally on the guide rail through the linear bearing to realize the conversion of the working position and further improve the work efficiency.

As a further improvement of the present invention, there are two guide rails, which are arranged up and down, and each guide rail is arranged opposite to a linear bearing. The double guide rail structure can make the screw rod fixing bracket move and balance.

As a further improvement of the present invention, the number of the guide pins is two, and they are arranged diagonally. This structure makes the guide pin and the valve staggered to avoid mutual interference between the parts. At the same time, the guide pins are arranged diagonally, which can increase the distance between the two guide pins and make it more stable during the up and down movement of the screw rod.

As a further improvement of the present invention, the screw rod is arranged on a threaded bushing, and the screw bushing is fixed on the screw rod fixing bracket by screws.

As a further improvement of the present invention, the pressing block is further provided with a bearing block, and the bearing block is arranged opposite to the bottom end of the screw rod. The downward force of the screw rod is transmitted to the pressing block through the bearing block, so as to avoid the horizontal movement or rotation of the pressing block directly affected by the spinning force, thereby ensuring the reliability and accuracy of the assembly.

As a further improvement of the present invention, the bearing block is arranged in a blind hole opened in the center of the pressing block, the bottom of the bearing block is provided with a bearing, and the top of the bearing block is limited by screws. With this structure, the bearing block absorbs the rotational force and only transmits the downforce to the pressing block.

As a further improvement of the present invention, the bearing block is provided with a notch adapted to the bottom end of the screw rod. The notch can play the role of guiding and positioning, and balance the radial force of the bearing block to avoid being squeezed to one side.

As a further improvement of the present invention, the notch on the bearing block is in an inverted conical shape.

As a further improvement of the present invention, the bottom end surface of the screw rod is spherical.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of the structure of the valve lock clamping and pressing machine of the present invention.

FIG. 2 is a left side view of FIG. 1 .

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 1 .

FIG. 4 is a view taken along the line B-B of FIG. 3 .

FIG. 5 is an enlarged view of C in FIG. 3 .

In the figure, 1-screw rod, 2-screw rod fixing bracket, 3-press block, 4-guide rail, 5-guide pin, 6-linear bearing, 7-operation table, 8-base, 9-threaded bushing, 10 -Screw, 11-pin hole, 12-bearing block, 13-limit screw, 14-bearing, 15-valve top lock clip connection end, 16-valve lock clip assembly hole, 17-valve lock clip, 18-spring, 19- valve, 20- blind hole, 21- card slot, 22- guide rail, 23- cantilever, 24- column, 25- concave, 26- engine cylinder head assembly, 27- bottom end face of screw rod.

Detailed ways

Referring to the accompanying drawings, a valve lock clamping and pressing machine of the present invention includes a base 8 , a screw rod fixing bracket 2 , a screw rod 1 , a pressing block 3 and a guide pin 5 . The base 8 is a box structure in which circuit boards and other control devices can be installed. The engine cylinder head assembly 26 to be processed is placed on the operating table 7 . The operating table 7 can be a ready-made operating table on the assembly site, shared with other workstations, or can be directly arranged on the base 8 .

The screw rod fixing bracket 2 is in the shape of "L" and has a horizontal cantilever 23 and a vertical column 24 . The upright column 24 is arranged on the base 8, and the cantilever 23 is used to connect the screw rod 1, so that the screw rod 1 will not interfere with other components during operation.

The upright column 24 can be directly fixed on the base 8 . In an optimized embodiment, the upright column 24 is connected with the transverse guide rail 4 fixed on the base 8 through the linear bearing 6 . In this way, a plurality of work stations can be set on the operating table 7, and the engine cylinder head assembly 26 to be processed is placed on each work station. The screw rod fixing bracket 2 and the screw rod 1 assembly can move laterally on the guide rail 4 through the linear bearing 6, so as to realize the conversion of the working position, and further improve the work efficiency. In this embodiment, the console 7 is provided with four processing stations (as shown in FIG. 4 ).

More preferably, there are two guide rails 4 , which are arranged up and down, and each guide rail 4 is arranged opposite to a linear bearing 6 . The double guide rail structure can make the screw rod fixing bracket move and balance.

The screw rod 1 is longitudinally arranged, the upper end is threadedly connected with the cantilever 23 of the screw rod fixing bracket, and the lower end is arranged opposite to the pressing block 3 . The screw rod 1 can be directly arranged on the cantilever 23 . In an optimized embodiment, the screw rod 1 is arranged on the cantilever 23 through a threaded bushing 9 . The threaded bushing 9 is fixed on the cantilever 23 by means of screws 10, and the screw rod 1 is connected to the threaded bushing 9 by means of a threaded connection.

The pressing block 3 is a flat plate structure, and is provided with a pin hole 11 which is matched with the guide pin, and a valve lock clip assembling hole 16 . There are two guide pin holes 11, which are arranged diagonally. This structure makes the guide pin 5 and the valve 19 staggered to avoid mutual interference between the parts. At the same time, the guide pin holes 11 are arranged diagonally, so that the distance between the two guide pins 5 can be increased, and the process of the up and down movement of the screw rod 1 is more stable.

The valve lock clip assembling holes 16 are 4 and are arranged staggered from each other.

A circular blind hole 20 is also opened in the center of the upper surface of the pressing block 3 . A sliding bearing 12 and a bearing block 12 are placed in the blind hole 20 , and the top of the bearing block 12 is limited by a pair of screws 13 . The bearing block 12 is disposed opposite to the bottom end of the screw rod. The downward force of the screw rod 1 is transmitted to the pressing block 3 through the bearing block 12, so as to avoid the horizontal movement or rotation of the pressing block 3 directly affected by the spinning force, thereby ensuring the reliability and accuracy of the assembly. The bearing block 12 absorbs the rotational force and transmits only the pressing force to the pressing block 3 .

The bearing block 12 is provided with a notch 25 which is adapted to the bottom end of the screw rod. The notch 25 can play the role of guiding and positioning, and balance the radial force of the bearing block 12 to avoid being squeezed to one side. In this embodiment, the notch 25 on the bearing block is in the shape of an inverted cone. The bottom end surface 26 of the screw rod is spherical.

A valve lock clamp press-fitting machine of the present invention is used to assemble the valve lock clamp to the engine cylinder head assembly in the following steps:

1. Place the engine cylinder head assembly 26 on the installation station of the operating table, and use the guide pin 5 to position the pressing block 3 and the engine cylinder head assembly 26.

2. Align the air gun sleeve with the head of the screw rod 1, start the air gun, and press and screw the pressure block 3 to the desired position. Pull out until the card slot 21 is exposed; then insert a pair of valve lock clips 17 into the card slot 21 .

3. Start the air gun in the reverse direction and release the pressure block 3. At this time, the spring 18 has been limited by the valve lock clip 17, and the assembly of the valve lock clip 17 can be completed.

4. Move the screw rod fixing bracket 2 on the lateral guide rail 4 through the linear bearing 6 to the next station, and assemble the valve lock clip 17 on the engine cylinder head assembly 26 installed on the station.

5. Continue to operate in this order until all the workpieces on the operating table are assembled. Then replace a set of workpieces and assemble them in the same way.

The utility model has the advantages of simple structure, convenient and quick operation and short assembly time, which can greatly improve the work efficiency and reduce the production cost.

It should be understood that: the above-mentioned embodiments are only the description of the present utility model, rather than the limitation of the present utility model, and any inventions and creations that do not exceed the scope of the essential spirit of the present utility model all fall within the protection scope of the present utility model.

Claims (10)

1. A valve lock clamping press machine, comprising a base, a screw rod fixing bracket, a screw rod, a pressing block and a guide pin, it is characterized in that the screw rod fixing bracket is arranged on the base; the screw rod Vertically arranged, the upper end is threadedly connected with the screw rod fixing bracket, and the lower end is arranged opposite to the pressure block; the pressure block is provided with a pin hole matched with the guide pin and a valve lock clip assembly hole. 2 . The valve lock clamping and pressing machine according to claim 1 , wherein the screw rod fixing bracket is connected with the transverse guide rail fixed on the base through a linear bearing. 3 . 3 . The valve lock clamping press as claimed in claim 2 , wherein the number of the guide rails is two, and they are arranged up and down. 4 . 4 . The valve lock clamping and pressing machine according to claim 1 , wherein the number of the guide pins is two, and they are arranged diagonally. 5 . 5. A valve lock press-fitting machine according to claim 1, characterized in that the screw rod is arranged on a threaded bushing, and the threaded bushing is fixed on the screw rod fixing bracket by screws . 6. A valve lock clamping press machine according to any one of claims 1-5, characterized in that the pressing block is further provided with a bearing block, the bearing block and the bottom end of the screw rod Relative configuration. 7. A valve lock press-fitting machine as claimed in claim 6, characterized in that the bearing block is arranged in the blind hole opened in the center of the pressing block, the bottom of the bearing block is provided with a bearing, and the top of the bearing block is limited by screws. bit. 8 . The valve lock clamping and pressing machine as claimed in claim 7 , wherein the bearing block is provided with a notch adapted to the bottom end of the screw rod. 9 . 9 . The valve lock clamping and pressing machine according to claim 8 , wherein the notch on the bearing block is in the shape of an inverted cone. 10 . 10 . The valve lock clamping and pressing machine according to claim 9 , wherein the bottom end surface of the screw rod is spherical. 11 .

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