CN210676461U

CN210676461U - Manual clamping block for bending machine

Info

Publication number: CN210676461U
Application number: CN201921589769.6U
Authority: CN
Inventors: 林忠; 曹宇; 吴达通
Original assignee: Jiangsu Hongdong Industrial Automation Co Ltd
Current assignee: Jiangsu Hongdong Industrial Automation Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-06-05
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a manual clamping block for a bending machine, which comprises a front clamping block main body (1), a middle clamping block main body (2), a rear clamping block main body (3), a front clamping plate (5), a pin screw (9), a movable piston (11), a large spring (12), a mould hook (13), a small spring (14), a cam handle (16) and a cam connecting shaft (19); the utility model is always hooked and pressed tightly when the mould is put in advance through the big and small springs, so that the mould can be held by two hands and not drop suddenly, thereby improving the safety of operation; meanwhile, in the clamping process, the die hook can automatically move upwards through the matching of the spring steel bending metal plate and the front clamping plate, so that the upper surface of the die just clings to the contact surface corresponding to the manual clamping block, the die closing process is not needed, and the production efficiency is improved.

Description

Manual clamping block for bending machine

Technical Field

The utility model relates to a bender accessory especially relates to a manual clamp splice is used to bender.

Background

The clamping block is an accessory device used for clamping the die on the bending machine and used for connecting an upper cross beam of the bending machine and the upper die of the bending machine. The processing quality of the clamping block and whether the mould is convenient to replace or not, and the bending precision and the working efficiency are directly influenced by labor saving. The clamping force action modes of the clamping block are usually manual, pneumatic and hydraulic driving, different clamping modes have advantages and disadvantages in the aspects of price, automatic control convenience and the like, and the manual clamping block is generally used at present.

The prior art manual clamping blocks typically push the front plate, which acts as a lever and clamps the mold by turning, by a horizontal rotation of a cam lever. The disadvantages are that:

1. when dismantling the mould of comparison heaviness in the installation, must have one hand to promote the cam pole, another hand must hold the mould simultaneously and make the mould fall down suddenly in order to prevent that the lever state transform of front splint from making when the cam pole rotates, can't both hands hold the mould, so it is harder at the installation of heavy mould dismantlement in-process, production efficiency is low.

2. The manual clamp splice of prior art is usually when the mould is fastened for the first time, because the strength of hand is inhomogeneous or can't guarantee at every turn just to put the mould in high most appropriate position to make mould upper surface and anchor clamps correspond the contact surface and paste tightly, consequently need the process of a pressure testing mould, the compound die promptly, thereby ensure that the mould is pressed the state that the upper surface pastes tightly under the effect of bender pressure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manual clamp splice for bending machine can both hands grip and dismouting mould, can not unexpected the dropping after the die holding, and the clamp splice can automatic lifting mould to suitable height and make the mould upper surface subside flat in the clamping process simultaneously.

The utility model discloses a realize like this:

a manual clamping block for a bending machine comprises a front clamping block main body, a middle clamping block main body, a rear clamping block main body, a front clamping plate, a screw with a pin, a movable piston, a large spring, a mold hook, a small spring, a cam handle and a cam connecting shaft; the front clamping block main body, the middle clamping block main body and the rear clamping block main body are in locking connection from front to back to form a manual clamping block main body; a movable piston is arranged in the rear clamping block main body, one end of a screw with a pin is embedded in the front clamping plate in a matching manner, the other end of the screw with the pin sequentially penetrates through the front clamping plate, the front clamping block main body, the mold hook and the middle clamping block main body and is connected with the movable piston, so that the mold hook is arranged on the front end surface of the front clamping block main body through the front clamping plate, and the mold is hung on the mold hook through a hook body at the bottom of the mold hook; the cam end of the cam handle is arranged in the middle clamping block main body through a cam connecting shaft, the cam handle rotates by taking the cam connecting shaft as a shaft, the connecting end of the cam handle penetrates through the front clamping block main body and extends above the front clamping plate and the mould hook, and the cam end of the cam handle is in contact connection with the movable piston and drives the movable piston to move back and forth when rotating; the large spring is sleeved on the screw with the pin and tightly supported between the front clamping plate and the front clamping block main body, so that the movable piston can push the front clamping plate to synchronously move through the large spring when moving; the small spring is tightly propped and installed between the mold hook and the front clamping plate.

The top of middle part clamp splice main part be equipped with the upper wedge, go up wedge and front portion clamp splice main part fixed connection, the both sides of going up the wedge are the inclined plane structure.

And side plate gold cover plates are respectively arranged on two sides of the front clamping plate and cover the side ends of the mold hooks.

And a gasket is arranged between the front clamping plate and the side plate gold cover plate.

The screw with the pin is provided with a step, the movable piston is internally provided with a screw hole, the step is inserted into the screw hole in a matching mode, and the surface of the step is attached to the surface of the movable piston.

The screw with the pin is provided with a screw plug, and the screw plug covers the inner six stages of the screw with the pin.

The connecting ends of the cam handles are connected through connecting handles and handle connecting shafts to form a handle main body with an integral structure.

And two ends of the cam connecting shaft are respectively provided with a stop gasket, and the stop gaskets are embedded on the middle clamping block main body.

The top of mould couple install a plurality of spring steel panel beating of bending, the front end that the panel beating was bent to the spring steel is arc bending structure, the top of front plate is equipped with the arc bending structure assorted inclined plane structure with the panel beating is bent to the spring steel, the inclined plane structure of front plate can laminate with the arc bending structure of the panel beating is bent to the spring steel, makes the front plate can promote mould couple upward movement.

And a rear clamping plate is fixedly arranged on the rear end surface of the rear clamping block main body, and covers the movable piston.

The utility model is always hooked and pressed tightly when the mould is put in advance through the big and small springs, so that the mould can be held by two hands and not drop suddenly, thereby improving the safety of operation; meanwhile, in the clamping process, the die hook can automatically move upwards through the matching of the spring steel bending metal plate and the front clamping plate, so that the upper surface of the die just clings to the contact surface corresponding to the manual clamping block, the die closing process is not needed, and the production efficiency is improved.

Drawings

Fig. 1 is a perspective view of a manual clamping block for a bending machine according to the present invention;

fig. 2 is an exploded view of the manual clamping block for the bending machine of the present invention;

fig. 3 is a cross-sectional view of the manual clamping block for the bending machine of the present invention.

In the figure, 1 front clamping block main body, 2 middle clamping block main bodies, 3 rear clamping block main bodies, 4 upper inclined iron, 5 front clamping plates, 6 rear clamping plates, 7 gaskets, 8 side sheet metal cover plates, 9 screws with pins, 91 steps, 10 screw plugs, 11 moving pistons, 111 screw holes, 12 large springs, 13 die hooks, 14 small springs, 15 spring steel bending sheet metals, 16 cam handles, 17 connecting handles, 18 handle connecting shafts, 19 cam connecting shafts and 20 stop gaskets.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, a manual clamping block for a bending machine comprises a front clamping block main body 1, a middle clamping block main body 2, a rear clamping block main body 3, a front clamping plate 5, a screw 9 with a pin, a movable piston 11, a large spring 12, a mold hook 13, a small spring 14, a cam handle 16 and a cam connecting shaft 19; the front clamping block main body 1, the middle clamping block main body 2 and the rear clamping block main body 3 are locked and connected from front to back through internal bolts to form an integrated manual clamping block main body; a piston hole is formed in the rear clamping block main body 3 and a movable piston 11 is correspondingly installed, a mounting hole is formed in the front clamping plate 5, one end of a screw 9 with a pin is embedded in the mounting hole in a matching mode, the other end of the screw 9 with the pin penetrates through the front clamping plate 5, the front clamping block main body 1, a mold hook 13 and the middle clamping block main body 2 in sequence and is connected with the movable piston 11, the mold hook 13 is installed on the front end face of the front clamping block main body 1 through the front clamping plate 5, and a mold is hung on the mold hook 13 through a hook body at the bottom of the mold hook 13; the cam end of the cam handle 16 is arranged in a corresponding processing hole in the middle clamping block main body 2 through a cam connecting shaft 19, the cam handle 16 rotates by taking the cam connecting shaft 19 as a shaft, the connecting end of the cam handle 16 penetrates through the front clamping block main body 1 and extends above the front clamping plate 5 and the die hook 13, and the cam end of the cam handle 16 is in contact connection with the movable piston 11 and drives the movable piston 11 to move back and forth in a specified stroke when rotating; the large spring 12 is sleeved on the screw 9 with the pin and tightly propped between the front clamping plate 5 and the front clamping block main body 1, so that the movable piston 11 can push the front clamping plate 5 to synchronously move through the large spring 12 when moving; 14 top tight installations of little spring are between mould couple 13 and front plate 5, it is preferred, the bottom of front plate 5 is equipped with the spring hole, the spring hole can cover the length after little spring 14 compresses tightly, when making manual clamp splice main part loosen, the coupler body of mould couple 13 bottom catches on the mould under little spring 14's elastic force effect, ensure that the mould can not drop, simultaneously because the coupler body structure, can lift the mould off after rotating certain angle of mould and extrusion little spring 14, thereby realize that the mould is handed to both hands and trade the mould from top to bottom fast.

The top of middle part clamp splice main part 2 be equipped with down tube 4, go up down tube 4 and pass through screw and front portion clamp splice main part 1 fixed connection, the both sides of going up down tube 4 are the inclined plane structure to installation position about finely tuning through the inclined plane structure, thereby the whole height of adjustment manual clamp splice main part. In the actual bending process, the most direct parts bearing the bending force are the middle clamping block main body 2 and the upper inclined iron 4, the more important factor finally influencing the bending precision is the integral installation height, and the integral installation height can be adjusted to an accurate value through the upper inclined iron 4 during installation.

The both sides of front splint 5 install curb plate golden apron 8 through the bolt respectively, curb plate golden apron 8 shroud is at the side of mould couple 13, prevents that mould couple 13 from dropping from both sides.

A gasket 7 is arranged between the front clamping plate 5 and the side plate metal cover plate 8, so that the side plate metal cover plate 8 is not too tight relative to the front clamping block main body 1 and is not too loose relative to the mould hook 13.

Referring to fig. 3, preferably, the screw 9 with the pin is provided with a step 91, the movable piston 11 is provided with a screw hole 111, the step 91 is inserted into the screw hole 111 in a matching manner, and the step surface is attached to the surface of the movable piston 11, so that the relative position of the front clamp plate 5 and the movable piston 11 is kept within a certain range by the precise processing distance of the step 91, the error is small, and the consistency of the clamping action is ensured.

The screw 9 with the pin is provided with a screw plug 10, and the screw plug 10 covers the inner six stages of the screw 9 with the pin, so that the screw has an attractive effect.

The connecting ends of the cam handles 16 are connected through connecting handles 17 and handle connecting shafts 18 to form a handle main body of an integrated structure, so that the cam handles 16 can be conveniently held and turned.

And two ends of the cam connecting shaft 19 are respectively provided with a stop gasket 20, and the stop gaskets 20 are embedded on the middle clamping block main body 2 to prevent the cam connecting shaft 19 from falling from two sides.

Preferably, the number of the hooks at the bottom of the mold hook 13 is 6, so that the balance and stability of the mold which is hung and clamped through the hooks are maintained, and the number of the large springs 12 and the number of the small springs 14 are 5 and are arranged horizontally in a straight line, so that the uniform stress of the front clamping plate 5 is ensured.

The top of mould couple 13 install a plurality of spring steel panel beating 15 of bending through the screw, the front end that the panel beating 15 is bent to the spring steel is arc bending structure, the top of front plate 5 be equipped with the spring steel 15 of bending arc bending structure assorted inclined plane structure, the inclined plane structure of front plate 5 can be laminated with the arc bending structure of spring steel 15 of bending panel beating, make front plate 5 can promote mould couple 13 upward movement.

The rear end face of the rear clamping block main body 3 is fixedly provided with a rear clamping plate 6 through screws, and the rear clamping plate 6 covers the movable piston 11, so that the manual clamping block main body can clamp the mold on two sides.

The utility model discloses the theory of operation of manual clamp splice for bending machine is: the mould is hung at the bottom of the mould hook 13 through the hook body, and is clamped and fixed through the front clamping plate 5 by the screw 9 with the pin, and also can be clamped through the rear clamping plate 6 by the screw, so that the double-side clamping function is realized. The purpose of loosening and tightening the die is achieved by manually controlling the rotation of the cam handle 16.

When the handle body rotates downwards around the cam connecting shaft 19 through the cam handle 16, the cam end of the cam handle 16 extrudes the movable piston 11, so that the elastic force of the large spring 14 pushes the front clamping plate 5 to move forwards, and the mould is loosened; on the contrary, when the cam handle 16 rotates upwards around the cam connecting shaft 19, the cam end of the cam handle 16 does not extrude the movable piston 11, the movable piston 11 moves backwards, and the front clamping plate 5 which is in locking connection with the movable piston moves backwards synchronously and is clamped on the mould hook 13, so that the mould is clamped; when moving to the clamped position, the cam handle 16 is held stationary and does not rotate due to static friction between the cam end of the cam handle 16 and the moving piston 11, thereby ensuring that the mold remains clamped and does not fall out. Because the inclined plane structure of front splint 5 and the matching laminating of the arc bending structure of spring steel panel beating 15, front splint 5 can promote spring steel panel beating 15 of bending and drive mould couple 13 upward movement at the tight removal in-process that presss from both sides to make the mould upward movement and paste on the stress surface that middle part clamp splice main part 2 corresponds, realize the clamping action, and need not the compound die.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a manual clamp splice is used to bender which characterized in that: the clamp comprises a front clamping block main body (1), a middle clamping block main body (2), a rear clamping block main body (3), a front clamping plate (5), a screw with a pin (9), a movable piston (11), a large spring (12), a mold hook (13), a small spring (14), a cam handle (16) and a cam connecting shaft (19); the front clamping block main body (1), the middle clamping block main body (2) and the rear clamping block main body (3) are connected in a front-to-rear locking manner to form a manual clamping block main body; a movable piston (11) is installed in the rear clamping block main body (3), one end of a screw (9) with a pin is embedded in the front clamping plate (5) in a matching mode, the other end of the screw (9) with the pin sequentially penetrates through the front clamping plate (5), the front clamping block main body (1), a mold hook (13) and the middle clamping block main body (2) and is connected with the movable piston (11), the mold hook (13) is installed on the front end face of the front clamping block main body (1) through the front clamping plate (5), and a mold is hung on the mold hook (13) through a hook body at the bottom of the mold hook (13); the cam end of the cam handle (16) is installed in the middle clamping block main body (2) through a cam connecting shaft (19), the cam handle (16) rotates by taking the cam connecting shaft (19) as a shaft, the connecting end of the cam handle (16) penetrates through the front clamping block main body (1) and extends to the upper parts of the front clamping plate (5) and the die hook (13), and the cam end of the cam handle (16) is in contact connection with the movable piston (11) and drives the movable piston (11) to move back and forth when rotating; the large spring (12) is sleeved on the screw (9) with the pin and tightly supported between the front clamping plate (5) and the front clamping block main body (1), so that the movable piston (11) can push the front clamping plate (5) to synchronously move through the large spring (12) when moving; the small spring (14) is tightly propped and arranged between the mould hook (13) and the front clamping plate (5).

2. The manual clamp block for a bending machine of claim 1, wherein: the top of middle part clamp splice main part (2) be equipped with down-tilting iron (4), go up down-tilting iron (4) and front portion clamp splice main part (1) fixed connection, the both sides of going up down-tilting iron (4) are the inclined plane structure.

3. The manual clamp block for a bending machine of claim 1, wherein: and side plate golden cover plates (8) are respectively arranged on two sides of the front clamping plate (5), and the side ends of the mold hooks (13) are covered by the side plate golden cover plates (8).

4. The manual clamp block for a bending machine of claim 3, wherein: and a gasket (7) is arranged between the front clamping plate (5) and the side plate golden cover plate (8).

5. The manual clamp block for a bending machine of claim 1, wherein: the screw (9) with the pin is provided with a step (91), the movable piston (11) is internally provided with a screw hole (111), the step (91) is inserted into the screw hole (111) in a matching mode, and the step surface is attached to the surface of the movable piston (11).

6. The manual clamp block for a bending machine of claim 1, wherein: the screw with the pin (9) is provided with a screw plug (10), and the screw plug (10) covers the inner six stages of the screw with the pin (9).

7. The manual clamp block for a bending machine of claim 1, wherein: the connecting ends of the cam handles (16) are connected through a connecting handle (17) and a handle connecting shaft (18) to form a handle main body with an integral structure.

8. The manual clamp block for a bending machine of claim 1, wherein: and two ends of the cam connecting shaft (19) are respectively provided with a stop gasket (20), and the stop gaskets (20) are embedded on the middle clamping block main body (2).

9. The manual clamp block for a bending machine of claim 1, wherein: the top of mould couple (13) install a plurality of spring steel panel beating (15) of bending, the front end that the panel beating (15) were bent to the spring steel is arc bending structure, the top of front splint (5) be equipped with the spring steel arc bending structure assorted inclined plane structure of panel beating (15) of bending, the inclined plane structure of front splint (5) can be laminated with the arc bending structure of spring steel panel beating (15) of bending, make front splint (5) can promote mould couple (13) upward movement.

10. The manual clamp block for a bending machine of claim 1, wherein: the rear clamping block is characterized in that a rear clamping plate (6) is fixedly mounted on the rear end face of the rear clamping block main body (3), and the rear clamping plate (6) covers the movable piston (11).