CN109175119B - Linear lifting push-pull mechanism - Google Patents

Abstract

The invention relates to a new type of linear lift and push-pull mechanism, which includes a slide table, a roller table, a lifting assembly and a hook assembly. The slide table includes a slide rail and a support table. There are two slide rails. Both sides of the support table are slidably arranged on the slide rail. There are two sets of roller tables, which are respectively arranged on the outside of the width direction of the two slide rails, and the roller table is higher than the support table; one end of the lifting component is fixed on the lower end surface of the support table, and its movable end can telescope up and down. Wear the support platform; the hook assembly is used to pull and push the mold/tooling; the height range of the lifting assembly and the hook assembly is limited in this way: when the movable end of the lifting assembly moves upward to the highest point, the hook assembly is higher than the tooling The plane where the hook seat is located; when the movable end of the lifting assembly moves downward to the lowest position, the hook assembly is lower than the plane where the roller platform is located. The invention reduces the labor intensity of operators, saves space, reduces safety risks and improves production efficiency.

Description

A linear lifting and pushing mechanism

Technical field

The present invention relates to the technical field of mold/tooling replacement, and in particular to a new type of linear lift and push-pull mechanism.

Background technique

In the field of existing mechanical processing, more and more machine tool processing methods are used to improve production efficiency and reduce scrap rates. Therefore, molds/tooling are widely used. Product changeover production requires the replacement of molds/tooling. Nowadays, conventional mold replacement Generally, crane hoisting, forklift handling and manual lifting platforms are used. This type of mold changing method takes up a lot of manpower, material resources and time, and cannot fully guarantee the safety and quality of the mold changing process.

Contents of the invention

The purpose of the present invention is to provide a new type of linear lift and push-pull mechanism in view of the above-mentioned current situation.

The technical solution adopted by the present invention: a new type of linear lifting push-pull mechanism, including a sliding table, a roller table, a lifting assembly and a hook assembly, wherein:

The slide table includes a slide rail and a support platform. There are two slide rails. Both sides of the support platform are slidably mounted on the slide rail;

There are two sets of roller tables, which are respectively arranged outside the width direction of the two slide rails, and the roller table is higher than the support table;

One end of the lifting component is fixed to the lower end surface of the support platform, and its movable end can extend up and down through the support platform;

The hook assembly includes a connecting rod, a hook head and a push head. One end of the connecting rod is connected to the lifting assembly and extends forward horizontally. The hook head is provided at the front end of the connecting rod and extends downward to pull. Tool, the push head is arranged on the lower end surface of the connecting rod and is located at the rear end of the hook head to push the tool forward, the upper end of the push head is lower than the lower end of the hook head, and the push head has a force-bearing Elasticity to retract backward;

The height range of movement of the lifting assembly and the hook assembly is defined as follows: when the movable end of the lifting assembly moves upward to the highest point, the hook assembly is higher than the plane where the hook seat of the tooling is located; When the end moves downward to the lowest position, the hook assembly is lower than the plane where the roller platform is located.

The beneficial effects of the present invention are: reducing labor intensity: the original traditional manual mold changing method is changed to a mechanical push-pull method without manual intervention, which greatly reduces the labor intensity of operators;

Space saving: Since the new linear lifting push-pull mechanism can be hidden under the roller table, the width of the mold-changing trolley is greatly shortened, thereby compressing the width of the mold-changing trolley channel, increasing the site area in disguise, and allowing more equipment to be laid out /machine, improve output ratio;

Reduce safety risks: Since operators are far away from the equipment and molds/tooling, accidents during the mold change process are prevented from harming the personal safety of employees;

Improve production efficiency: Since the mold/tooling is automatically changed by machinery without the need for full human intervention, the mold change time is shortened and the number of mold change personnel is reduced. Furthermore, the process productivity and change rate can be improved because the mold change time is shortened. line frequency to achieve rapid production of multiple varieties and small batches;

When the pusher head pushes the tooling forward, after the tooling reaches the designated area, the pusher head is forced backward and shrinks, thus protecting the pusher head and extending the service life of the device.

Description of drawings

The drawings involved in the description of the embodiments of the present invention are briefly introduced to facilitate a clearer and complete description of the technical solutions in the embodiments of the present invention. The following drawings are only for some embodiments of the present invention and are not intended to be limiting. The present invention, without performing other creative work, can obviously obtain other drawings based on these drawings.

Figure 1 is a front view of a lifting mold-changing trolley;

Figure 2 is a front view of a new type of linear lift and push-pull mechanism according to the present invention;

Figure 3 is a partial enlarged view of the new linear lifting push-pull mechanism shown in Figure 2;

Figure 4 is a schematic diagram of the combination of the lifting assembly and the hook assembly.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The directions or positional relationships indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connect, or connect in one piece. The connection can be mechanical or electrical. It can be a direct connection or an indirect connection through an intermediary. It can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly provided and limited, the term "above" or "below" a first feature of a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “below” and “beneath” the first feature of the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

As shown in Figure 1, a lift-type mold-changing trolley includes an upper mold position A1 for placing the mold/tooling to be replaced, and a lower mold position A2 for placing the mold/tooling to be replaced on the punch machine. , the upper mold position A1 and the lower mold position A2 are parallel, and each is equipped with a new linear lifting push-pull mechanism 1.

When changing the mold, first align the lower mold position A2 with the punch equipment, move the mold/tooling of the punch machine to this mold position through the new linear lifting push-pull mechanism, and then align the upper mold position A1 with the mold/tool to be replaced. quasi-punch equipment, and then move the mold/tooling to the punch equipment through a new linear lifting push-pull mechanism. In this way, the original traditional manual mold changing method is changed to a mechanical push-pull method without manual intervention, which greatly reduces the labor intensity of operators; at the same time, a loading position and a lowering position are set up to achieve rapid mold changing.

As shown in Figure 2, the new linear lifting push-pull mechanism 1 includes a sliding table 11, a roller table 12, a lifting component 13 and a hook component 14. in:

The sliding platform 11 includes a sliding rail 114 and a supporting platform 115. There are two sliding rails 114, and both sides of the supporting platform 115 are slidably mounted on the sliding rail 114;

There are two sets of roller tables 12, which are respectively arranged outside the width direction of the two slide rails 114, and the roller table 12 is higher than the support table 111;

One end of the lifting component 13 is fixed to the lower end surface of the support platform 115, and its movable end is telescopically inserted through the support platform 115;

The hook assembly 14 is used to pull and push the mold/tooling. It is fixed on the top of the movable end of the lifting assembly 13 and extends forward. The height range of movement of the lifting assembly 13 and the hook assembly 14 is defined as follows: the lifting assembly 13 When the movable end moves upward to the highest position, the hook assembly 14 is higher than the plane of the hook seat of the tool; when the movable end of the lifting assembly 13 moves downward to the lowest position, the hook assembly 14 is lower than the plane of the roller table 12 .

The sliding table 11 also includes a motor, a torque-adjustable clutch 110, a main sprocket 111, a slave sprocket 112 and a chain 113. The output end of the motor is connected to one end of the torque-adjustable clutch 110, and the other end of the latter is connected to the main sprocket 111. Coaxial transmission connection, the chain 113 is transmission connected between the main sprocket 111 and the slave sprocket 112, and the lower end surface of the support platform 115 is provided with a connecting block 1151 fixedly connected to a section of the chain 113.

Installing a torque-adjustable clutch 110 between the main sprocket 111 and the motor can accurately control the push and pull force to prevent damage to the equipment due to overload or jamming.

Preferably, a rotary encoder is installed at the slave sprocket 112 to accurately control the push-pull stroke, so that molds/tooling of different sizes can be changed.

As shown in Figure 3, it should be noted that the connecting block 1151 is welded to a single section of the chain 113. As shown in Figure 4, there are two connecting blocks 1151, which are welded to the two single sections of the chain 113 one after the other.

A plurality of power rollers 121 are spaced on the upper end surface of the roller table 12 , and the power rollers 121 protrude from the upper end surface of the roller table 12 .

Furthermore, the roller table 12 is also provided with a guide bar 122 extending along the length direction on the side away from the slide table 11 .

4, the lifting assembly 13 includes a lifting cylinder 131, a cylinder 132 and a support column 133. The hook assembly 14 includes a connecting rod 141, a hook head 142 and a push head 143. One end of the lifting cylinder 131 is threadedly connected to the lower end surface of the support platform 115. , its output end passes through the support platform 115 and is connected to the connecting rod 141. The cylinder 132 is arranged on one side of the lifting cylinder 131. The cylinder 132 is set with a support rod 133. The upper end of the support column 133 is fixedly connected to the connecting rod 141. On the lower end surface, the hook head 142 is disposed on the front end of the connecting rod 141 and extends downward. The push head 143 is disposed on the lower end surface of the connecting rod 141 and is located at the rear end of the hook head 142, and the upper end of the push head 143 is lower than the hook head 142. At the lower end, the push head 143 has elastic force to retract backward under force.

Further, the push head 143 includes a connecting body 143A, a spring 143B and a pushing block 143C. The upper end of the connecting body 143A is connected to the lower end surface of the connecting rod 141. The spring 143B is horizontally set at the lower end of the connecting body 143. The pushing block 143B is connected to a distance away from the spring. One end of the connector 143A.

Preferably, a cylinder 132 is provided on the front and rear sides of the lifting cylinder 131, and a supporting column 133 is provided correspondingly.

The lifting cylinder 131 pushes the connecting rod 141 to move up and down, and two supporting columns 133 are added to maintain the stability of the connecting rod 141 when it moves. The hook head 142 is used to buckle the hook seat, and the push head 143 is used to push the hook seat.

In order to further facilitate mold changing, the heights of the lifting cylinder 131, the hook head 142 and the push head 143 are limited as follows: when the lifting cylinder 131 rises to the highest position, the push head 143 and the hook seat are on the same level. At this time, the hook head 142 is not in contact with the hook. The support platform 115 can push the hook seat forward like this, and when it is necessary to extend the hook head 142 into the hook seat, it only needs to rise to the highest point first, and then when it reaches the top of the hook seat, it can be extended by slowly descending. into the hook base to avoid editing multiple control heights in the console.

The working process of the present invention is: when changing the mold, first align the lower mold position A2 with the punching equipment, lift the lifting cylinder 131, drive the supporting platform 115 of the slide 11 to move toward the punching equipment, and lower the lifting cylinder 131 to extend the hook head 142. Enter the hook seat of the punch machine, hook the mold/tool to be replaced, and then the slide table 11 drives the support table 115 back to pull the mold/tool back to one third of the roller table 12, and lift the cylinder 131 It rises again, and at the same time, the slide table 11 retreats a certain distance (that is, the mold is uncoupled), and then the lifting cylinder 131 drops below the surface of the roller table 12, and the power roller 121 of the roller table 12 starts to return the mold to the mold changing trolley. Middle position; the mold changing trolley moves, aligning the lower mold position A2 with the punching machine, the roller table 12 starts to send the mold to the direction of the punching machine, the lifting cylinder 131 rises, the slide table 11 drives the support table 115 forward, and the push head 143 Push the mold/tooling to be replaced to the designated position in the punching equipment to complete the mold change.

The advantages of this invention are: reducing labor intensity: the original traditional manual mold changing method is changed to a mechanical push-pull method without manual intervention, which greatly reduces the labor intensity of operators;

Saving space: Since the new linear lifting push-pull mechanism 1 can be hidden under the roller table 12, the width of the mold-changing trolley is greatly shortened, thereby compressing the width of the mold-changing trolley channel, increasing the site area in disguise, and allowing more space to be laid out. Multiple equipment/machines to improve output ratio;

Reduce safety risks: Since operators are far away from the equipment and molds/tooling, accidents during the mold change process are prevented from harming the personal safety of employees;

Improve production efficiency: Since the mold/tooling is automatically changed by machinery without the need for full human intervention, the mold change time is shortened and the number of mold change personnel is reduced. Furthermore, the process productivity and change rate can be improved because the mold change time is shortened. line frequency to achieve rapid production of multiple varieties and small batches;

When the pusher head pushes the tooling forward, after the tooling reaches the designated area, the pusher head is forced backward and shrinks, thus protecting the pusher head and extending the service life of the device.

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

Claims (6)

1. The utility model provides a straight line lift push-pull mechanism which characterized in that, includes slip table, roller platform, lifting unit and drag hook subassembly, wherein:

the sliding table comprises two sliding rails and a supporting table, and two sides of the supporting table are arranged on the sliding rails in a sliding manner;

the roller tables are respectively arranged at the outer sides of the two sliding rails in the width direction, the roller tables are higher than the supporting tables, a plurality of power rollers are arranged on the upper end surfaces of the roller tables at intervals, and the power rollers protrude out of the upper end surfaces of the roller tables;

one end of the lifting assembly is fixed on the lower end surface of the supporting table, and the movable end of the lifting assembly can vertically stretch and retract to penetrate through the supporting table;

the drag hook assembly comprises a connecting rod, a hook head and a push head, one end of the connecting rod is connected with the lifting assembly and extends forwards horizontally, the hook head is arranged at the front end of the connecting rod and extends downwards to pull the tool, the push head is arranged at the lower end face of the connecting rod and is positioned at the rear end of the hook head to push the tool forwards, the upper end of the push head is lower than the lower end of the hook head, and the push head has elastic force of being stressed to retract backwards;

the height movement range of the lifting assembly and the drag hook assembly is defined in the following way: when the movable end of the lifting assembly moves upwards to the highest position, the draw hook assembly is higher than the plane of the hook seat of the tool; when the movable end of the lifting assembly moves downwards to the lowest position, the drag hook assembly is lower than the plane where the roller table is located;

the push head comprises a connecting body, a spring and a push block, the upper end of the connecting body is driven to be connected with the lower end face of the connecting rod, the spring is horizontally arranged at the lower end of the connecting body, the push block is connected with the spring at one end far away from the connecting body, and when the push head pushes the tool forwards, the tool reaches a designated area and then is subjected to backward force to shrink.

2. The linear lifting push-pull mechanism according to claim 1, wherein the sliding table further comprises a motor, a torque adjustable clutch, a main chain wheel, a slave chain wheel and a chain, the output end of the motor is connected with one end of the torque adjustable clutch, the other end of the motor is coaxially connected with the main chain wheel in a transmission manner, the main chain wheel and the slave chain wheel are in transmission connection with the chain, and a connecting block fixedly connected with one section of the chain is arranged on the lower end face of the supporting table.

3. A linear lift push-pull mechanism according to claim 2, wherein a rotary encoder is provided at the slave sprocket.

4. The linear lifting push-pull mechanism according to claim 1, wherein the roller table is further provided with a guide strip extending in the length direction at a side far away from the sliding table.

5. The linear lifting push-pull mechanism according to claim 1, wherein the lifting assembly comprises a lifting cylinder, a cylinder body and a supporting column, one end of the lifting cylinder is in threaded connection with the lower end face of the supporting table, an output rod of the lifting cylinder penetrates through the supporting table and is connected with the connecting rod, the cylinder body is arranged on one side of the lifting cylinder, the supporting column is sleeved in the cylinder body, and the upper end of the supporting column is fixedly connected with the lower end face of the connecting rod.

6. The linear lift push-pull mechanism of claim 5 wherein the height of the lift cylinder, hook head and push head are defined by: when the lifting cylinder ascends to the highest position, the push head and the hook seat are in the same horizontal plane, and the hook head is not contacted with the hook seat.