CN209902612U - Controllable fixed-torque screwing machine - Google Patents

Abstract

The utility model discloses a controllable fixed torque screwing machine, which comprises a workbench, wherein a pressing claw and a positioning rotary disc are arranged on the workbench, the pressing claw is arranged on an installation support in a sliding manner, the top of the installation support is provided with a cylinder, a piston rod of the cylinder vertically extends downwards and is fixedly connected with the pressing claw, the pressing claw consists of a fixed pressing claw and a movable pressing claw, a positioning groove is formed between the rear end surface of the fixed pressing claw and the front end surface of the movable pressing claw, and the front end surface of the extending section of the movable pressing claw is divided into three sections, namely an upper vertical surface, an inclined transition surface and a lower vertical surface which are sequentially connected from top to bottom; the positioning rotary disc is located below the pressing claw and connected with the hydraulic motor through a transmission shaft, the clamping fixture is detachably mounted on the positioning rotary disc, the hydraulic motor drives the positioning rotary disc to rotate, and then the clamping fixture and a filter in the clamping fixture are driven to rotate, so that the filter and a cover plate above the filter are screwed in a threaded manner. The utility model has the advantages that: the torque is controllable, and the assembly quality and the production efficiency of the filter are improved.

Description

A controllable torque tightening machine

technical field

The utility model relates to a screwing device, in particular to a screwing machine with a controllable torque.

Background technique

The filter mainly refers to the air filter, the oil filter and the fuel filter. Its function is to filter the air, oil and fuel entering the engine, and it is an indispensable part of the automobile engine. At present, most car engines use spin-on oil filters. Since the filter is a one-time product, it needs to be replaced by hand or tools after reaching the specified service life, and the threaded cover of the filter is used. To be used repeatedly, there are certain requirements for the tightening of the filter and the threaded cover. If the tightening is too tight, the threaded cover will be damaged, and insufficient tightening torque will cause the filter to leak oil.

The connection between the filter and its cover is realized by threads, which is a typical threaded connection. In the prior art, it is generally tightened manually or with some simple auxiliary tools. Defects such as high strength and low assembly quality.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a controllable torque tightening machine, so as to achieve the purpose of controllable torque, improving filter assembly quality and production efficiency, and reducing manual labor of workers.

The utility model is achieved through the following technical solutions:

A controllable torque tightening machine, the tightening machine is used for screw tightening a filter and a cover plate, the cover plate is an L-shaped cover plate composed of a horizontal plate and a vertical plate, the The tightening machine includes a worktable, and the worktable is provided with a pressing claw and a positioning turntable,

The pressing claw is slidably arranged on the mounting bracket and can slide back and forth along the vertical direction. A cylinder is arranged on the top of the mounting bracket, and the piston rod of the cylinder extends vertically downward and is fixedly connected with the top of the pressing claw. The pressure claw is driven up and down in the vertical direction by the cylinder. The pressure claw is composed of a fixed pressure claw and a movable pressure claw which are arranged in front and back and are detachably connected. A positioning groove is formed for the vertical plate of the cover plate to be inserted into, the section of the movable claw extending downward beyond the fixed claw is the extension section, and the front end face of the extension section of the movable claw is divided from top to bottom. The upper vertical surface, the inclined transition surface and the lower vertical surface connected in sequence at the bottom have three sections in total, the upper vertical surface is flush with the rear side wall of the positioning groove, and the inclined transition surface is an inclined surface whose lower end is inclined backward;

The positioning rotary disc is located below the pressing claw, the bottom of the positioning rotary disc is connected with the hydraulic motor through a transmission shaft, and a tire tool for installing the filter is detachably installed on the positioning rotary disc. The hydraulic motor drives the positioning turntable to rotate, which in turn drives the tire and the filter in the tire to rotate, so that the filter and the upper cover plate are screwed tightly.

Further, the mounting bracket includes a horizontal adjustment plate and a vertical adjustment plate, the horizontal adjustment plate is connected to the workbench through a horizontal adjustment bolt on the rear side, and the horizontal adjustment bolt passes through the workbench from the rear to the front. It is threadedly connected with the horizontal adjustment plate, and the position of the horizontal adjustment plate in the front-rear direction can be adjusted by rotating the horizontal adjustment bolt; the vertical adjustment plate is connected with the horizontal adjustment plate through a vertical adjustment bolt, and the vertical adjustment The bolts pass through the vertical adjustment plate from top to bottom and then connect with the horizontal adjustment plate in threads. The vertical position of the vertical adjustment plate can be adjusted by rotating the vertical adjustment bolt. The cylinder is installed on the vertical adjustment plate. At the top, the rear end of the pressing claw is slidably connected to the guide rail on the front end surface of the horizontal adjustment plate through a slider.

Further, the bottom of the horizontal adjustment plate is provided with a horizontal positioning slider, and the worktable is provided with a horizontal positioning slot matched with the horizontal positioning slider, and the horizontal positioning slot extends in the front-rear direction; the lead The front side of the vertical adjustment plate is provided with a vertical positioning slider, the rear side of the horizontal adjustment plate is provided with a vertical positioning chute matched with the vertical positioning slider, and the vertical positioning chute extends in the vertical direction; The locking bolts pass through the waist-shaped holes on the vertical adjustment plate and the through holes on the horizontal adjustment plate in turn, and then screw on the nuts to realize the fixing of the vertical adjustment plate and the horizontal adjustment plate.

Further, the movable pressing claw and the fixed pressing claw are detachably connected by two connecting bolts.

Further, the front side wall of the positioning groove is a slope whose lower end is inclined forward.

Further, the bottom of the tire mold is a mounting plate, and the bolts pass through the mounting disk and the positioning rotary disk in turn to realize the fixed connection between the tire mold and the positioning rotary disk, and the center of the upper part of the tire mold is provided with a filter bottom. For the inserted positioning socket, the bottom of the filter side wall is a polygonal structure, and the shape of the positioning socket matches the shape of the bottom of the filter side wall.

Compared with the prior art, the utility model has the following advantages:

1. The utility model provides a controllable constant torque tightening machine, by installing the tire tool on the positioning turntable, the filter is positioned to prevent rotation; at the same time, the L-shaped cover plate is positioned and prevented by the upper pressing claw. When working, the pressure claw is driven by the cylinder to automatically move down to realize the self-positioning of the cover plate on the filter, and then the hydraulic motor drives the tire and the filter in the tire to rotate, so as to align the filter with the upper filter. The cover plate is automatically screwed, the assembly quality and assembly efficiency are high, and the manual labor of workers is reduced.

2. The utility model adopts the hydraulic motor to realize the tightening operation. The hydraulic motor has the characteristics of stable operation, light weight, small inertia and quick response, and the hydraulic motor is easy to realize quick start, braking and frequent reversing. It is easy to realize overload protection, and the tightening torque can be controlled, so as to control the axial pre-tightening force of thread tightening, and then control the size of the tightening force to further ensure the quality of tightening assembly.

3. The utility model drives the pressure claw to move down automatically through the cylinder, and cooperates with the three-section structure of the front end surface of the protruding section of the movable pressure claw. The plate is accurately introduced into the positioning groove of the pressing claw, which realizes the automatic and accurate positioning of the cover plate on the filter, prevents the filter from being crushed due to the skew placement of the cover plate and other reasons, and makes the tightening operation more accurate and reliable. The assembly quality is further guaranteed.

4. In the tightening machine provided by the present utility model, the movable pressing claw and the tire tool are respectively detachably connected with the fixed pressing claw and the positioning turntable, and the movable pressing claw and the tire tool of different sizes can be replaced according to the needs to adapt to different sizes. The tightening of the series of filters has strong versatility.

5. The tightening machine provided by the utility model, its mounting bracket is designed as a horizontal adjustment plate and a vertical adjustment plate, which can adjust the position of the pressing claw in the horizontal direction and the vertical direction, so as to meet the cover of the filter of different size series. The positioning and clamping of the board has strong versatility.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a partial enlarged view of the utility model after the filter and the cover plate are installed.

FIG. 3 is a perspective view of the mounting bracket part of the present invention.

4 is a side sectional view of the mounting bracket part of the present invention.

Fig. 5 is a perspective view of the pressing claw of the present invention.

Fig. 6 is a side view of the pressing claw of the present invention.

FIG. 7 is a schematic diagram of the connection between the pressing claw of the present invention and the piston rod of the cylinder.

Fig. 8 is a perspective view of the filter of the present invention and its cover plate after being assembled.

FIG. 9 is a perspective view of the tire mold of the present invention.

Labels in the figure: 1 Filter, 2 Cover, 3 Workbench, 4 Claw, 41 Fixed Claw, 42 Active Claw, 43 Connecting Bolt, 44 Lock Nut, 45 Washer, 46 Positioning Slot, 47 Upright Straight surface, 48 inclined transition surface, 49 vertical surface, 410 sliding block, 5 positioning turntable, 6 mounting bracket, 61 horizontal adjustment plate, 62 vertical adjustment plate, 63 horizontal adjustment bolt, 64 vertical adjustment bolt, 65 Locking bolts, 66 waist holes, 67 guide rails, 68 horizontal positioning sliders, 69 vertical positioning sliders, 7 cylinders, 71 piston rods, 8 transmission shafts, 9 hydraulic motors, 10 tires, 101 mounting plates, 102 positioning jack.

Detailed ways

The embodiments of the present utility model are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of the present utility model is not limited to the following described embodiment.

Referring to FIGS. 1 to 9 , the present embodiment discloses a torque-controllable tightening machine, which is used to screw the filter 1 and the cover plate 2, and the cover plate 2 is composed of a horizontal plate and a cover plate 2. The L-shaped cover plate 2 composed of vertical plates, the screwing machine includes a worktable 3, and the worktable 3 is provided with a pressing claw 4 and a positioning turntable 5.

The pressing claw 4 is slidably arranged on the mounting bracket 6 and can slide back and forth along the vertical direction. A cylinder 7 is provided on the top of the mounting bracket 6 , and the piston rod 71 of the cylinder 7 extends vertically downward and is fixedly connected with the top of the pressing claw 4 , the pressure claw 4 is driven up and down in the vertical direction by the air cylinder 7. The pressure claw 4 is composed of a fixed pressure claw 41 and a movable pressure claw 42 which are arranged in front and back and are detachably connected. A detachable connection is realized by connecting bolts 43 . The bottom of the piston rod 71 of the cylinder 7 is provided with a threaded section. During installation, the upper and lower two locking nuts 44 and corresponding washers 45 are screwed into the threaded section of the piston rod 71 of the cylinder 7, and then the threaded section of the piston rod 71 of the cylinder 7 is screwed into The threaded section extends into the stepped hole formed by the butting of the semi-circular holes on the opposite sides of the fixed pressure claw 41 and the movable pressure claw 42, and then the upper locking nut 44 is tightened to complete the piston rod 71 and the pressure claw. 4 installation. A positioning groove 46 is formed between the rear end surface of the fixed pressing claw 41 and the front end face of the movable pressing claw 42 for the vertical plate of the cover plate 2 to be inserted into. The rear side wall of the positioning groove 46 is a vertical plane. A section of the movable claw 42 extending downward beyond the fixed claw 41 is an extension section, and the front end surface of the extension section of the movable claw 42 is divided into an upper vertical surface 47, an inclined transition surface 48 and a lower vertical surface 47 connected from top to bottom in sequence. The straight surface 49 has three sections, the upper vertical surface 47 is flush with the rear side wall of the positioning groove 46 , and the inclined transition surface 48 is an inclined surface whose lower end is inclined backward.

The positioning rotary disc 5 is located under the pressing claw 4, the bottom of the positioning rotary disc 5 is connected with the hydraulic motor 9 through a transmission shaft 8, and a tire tool 10 for installing the filter 1 is detachably installed on the positioning rotary disc 5. , the tire 10 is made of soft materials, such as rubber, nylon, polyurethane and other soft materials. The bottom of the tire mold 10 is a mounting plate 101, and bolts pass through the mounting disk 101 and the positioning rotary disk 5 in turn to realize the fixed connection between the tire mold 10 and the positioning rotary disk 5. A filter 1 is provided in the center of the upper part of the tire mold 10. The positioning hole 102 inserted at the bottom has a polygonal structure at the bottom of the side wall of the filter 1 , and the shape of the positioning hole 102 matches the shape of the bottom of the side wall of the filter 1 . The positioning turntable 5 is driven by the hydraulic motor 9 to rotate, thereby driving the tire mold 10 and the filter 1 in the tire mold 10 to rotate, thereby screwing the filter 1 and the upper cover plate 2 .

Specifically, the mounting bracket 6 includes a horizontal adjustment plate 61 and a vertical adjustment plate 62. The horizontal adjustment plate 61 is connected to the worktable 3 through a horizontal adjustment bolt 63 on the rear side, and the horizontal adjustment bolt 63 passes through the worktable from the rear to the front. 3. After connecting with the horizontal adjustment plate 61, the position of the horizontal adjustment plate 61 in the front-rear direction can be adjusted by rotating the horizontal adjustment bolt 63; the vertical adjustment plate 62 is connected with the horizontal adjustment plate 61 through a vertical adjustment bolt 64. , the vertical adjustment bolt 64 passes through the vertical adjustment plate 62 from top to bottom and then is connected with the horizontal adjustment plate 61 in a threaded connection, and the position of the vertical adjustment plate 62 in the vertical direction can be adjusted by rotating the vertical adjustment bolt 64. The air cylinder 7 is installed on the top of the vertical adjustment plate 62 , and the rear end of the pressing claw 4 is slidably connected to the guide rail 67 on the front end surface of the horizontal adjustment plate 61 through the slider 410 .

Specifically, the bottom of the horizontal adjustment plate 61 is provided with a horizontal positioning slider 68, and the worktable 3 is provided with a horizontal positioning slide slot matched with the horizontal positioning slider 68, and the horizontal positioning slot extends in the front-rear direction; the vertical adjustment plate 62 The front side is provided with a vertical positioning slider 69, and the rear side of the horizontal adjustment plate 61 is provided with a vertical positioning chute matched with the vertical positioning slider 69, and the vertical positioning chute extends in the vertical direction; 65 passes through the waist-shaped hole 66 on the vertical adjustment plate 62 and the through hole on the horizontal adjustment plate 61 in sequence, and then screw on the nut to realize the fixing of the vertical adjustment plate 62 and the horizontal adjustment plate 61 .

When working, first select the appropriate movable pressing claw 42 and the mold 10 according to the different size series of the filter 1, install them on the fixed pressing claw 41 and the positioning turntable 5 respectively, and manually adjust the level adjustment bolts 63 and 10. After the plumb adjustment bolts make the horizontal adjustment plate 61 and the plumb adjustment plate in proper positions, they are locked by the locking bolts 65 . Then insert the filter 1 into the positioning hole 102 of the mold 10 from top to bottom, and connect the cover plate 2 to the top of the filter 1 with threads, and make the vertical plate of the L-shaped cover plate 2 on the rear side, Then, the cylinder 7 is activated, and the pressure claw 4 is driven by the cylinder 7 to move down. Under the introduction of the inclined transition surface 48 of the movable pressure claw 42, the vertical plate of the L-shaped cover plate 2 can be automatically guided to the positioning of the pressure claw 4. In the groove 46 , the air cylinder 7 stops operating at this time, and the cover plate 2 does not rotate relative to the pressing pawl 4 . Then, the hydraulic motor 9 is started, and the tire 10 and the filter 1 in the tire 10 are driven by the hydraulic motor 9 to rotate, so that the filter 1 and the upper cover plate 2 are automatically screwed.

The tightening machine adapts to the assembly requirements of different size series of the filter 1 through a simple mechanical structure, and can meet the tightening requirements of the engine filter 1 . Since the tightening operation is frequent and fast and reliable tightening is required, the hydraulic system is used as the driving unit, and the tightening operation is realized by the hydraulic motor 9. The hydraulic system has the characteristics of stable operation, light weight, small inertia and fast response, and the hydraulic pressure The system is easy to realize quick start, braking and frequent reversal, and at the same time, it is easy to realize overload protection, and it can control the tightening torque, so as to control the axial preload of thread tightening, and then control the tightening force. Because the threaded cover plate 2 is damaged due to excessive tightening force, the filter 1 will not leak oil due to insufficient tightening torque, which further ensures the quality of the tightening assembly. In general, the utility model greatly improves the assembly quality and production efficiency, and reduces the physical labor intensity of workers.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection.

Claims (6)

1. The utility model provides a controllable fixed torque machine of screwing, the machine of screwing is used for carrying out the screw thread with the apron and screws, the apron is the L shape apron of compriseing horizontal plate and vertical board, the machine of screwing includes workstation, its characterized in that: the workbench is provided with a pressing claw and a positioning rotary disk,

the pressing claw is arranged on the mounting support in a sliding mode and can slide back and forth along the vertical direction, a cylinder is arranged at the top of the mounting support, a piston rod of the cylinder extends vertically downwards and is fixedly connected with the top end of the pressing claw, the pressing claw is driven to lift along the vertical direction by the cylinder, the pressing claw consists of a fixed pressing claw and a movable pressing claw which are arranged in front and back and are detachably connected, a positioning groove for inserting a vertical plate of a cover plate is formed between the rear end face of the fixed pressing claw and the front end face of the movable pressing claw, one section of the movable pressing claw, which downwardly exceeds the fixed pressing claw, is an extending section, the front end face of the extending section of the movable pressing claw is divided into an upper vertical face, an inclined transition face and a lower vertical face which are sequentially connected from top to bottom, the upper vertical face is flush with the rear side wall of the positioning groove, and the inclined transition face;

the positioning rotary disc is located below the pressing claw, the bottom of the positioning rotary disc is connected with the hydraulic motor through a transmission shaft, a clamping fixture used for installing a filter is detachably installed on the positioning rotary disc, the hydraulic motor drives the positioning rotary disc to rotate, the clamping fixture and the filter in the clamping fixture are further driven to rotate, and therefore the filter and a cover plate above the filter are screwed in a threaded mode.

2. A controlled torque tightening machine according to claim 1, wherein: the mounting bracket comprises a horizontal adjusting plate and a vertical adjusting plate, the horizontal adjusting plate is connected with the workbench through a horizontal adjusting bolt at the rear side, the horizontal adjusting bolt penetrates through the workbench from back to front and then is in threaded connection with the horizontal adjusting plate, and the position of the horizontal adjusting plate in the front-rear direction can be adjusted by rotating the horizontal adjusting bolt; the vertical adjusting plate is connected with the horizontal adjusting plate through a vertical adjusting bolt, the vertical adjusting bolt penetrates through the vertical adjusting plate from top to bottom and then is in threaded connection with the horizontal adjusting plate, the position of the vertical adjusting plate in the vertical direction can be adjusted by rotating the vertical adjusting bolt, the air cylinder is installed at the top of the vertical adjusting plate, and the rear end of the pressing claw is in sliding connection with a guide rail of the front end face of the horizontal adjusting plate through a sliding block.

3. A controlled torque tightening machine according to claim 2, wherein: the bottom of the horizontal adjusting plate is provided with a horizontal positioning sliding block, the workbench is provided with a horizontal positioning sliding groove matched with the horizontal positioning sliding block, and the horizontal positioning sliding groove extends along the front-back direction; the front side of the vertical adjusting plate is provided with a vertical positioning sliding block, the rear side of the horizontal adjusting plate is provided with a vertical positioning sliding groove matched with the vertical positioning sliding block, and the vertical positioning sliding groove extends along the vertical direction; the locking bolt sequentially penetrates through the waist-shaped hole in the vertical adjusting plate and the through hole in the horizontal adjusting plate and then the nut is screwed, so that the vertical adjusting plate and the horizontal adjusting plate are fixed.

4. A controlled torque tightening machine according to claim 1, wherein: the movable pressing claw and the fixed pressing claw are detachably connected through two connecting bolts.

5. A controlled torque tightening machine according to claim 1, wherein: the front side wall of the positioning groove is an inclined plane with the lower end inclining forwards.

6. A controlled torque tightening machine according to claim 1, wherein: the bottom of the mould is provided with an installation disc, the installation disc and the positioning rotary disc are sequentially penetrated through bolts, so that the mould is fixedly connected with the positioning rotary disc, the center of the upper part of the mould is provided with a positioning insertion hole for inserting the bottom of the filter, the bottom of the side wall of the filter is of a polygonal structure, and the shape of the positioning insertion hole is matched with that of the bottom of the side wall of the filter.

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