CN110155694B - Modular positioning device capable of bearing additional pressure loading - Google Patents

Abstract

The invention relates to a modular positioning device capable of bearing additional pressure loading, which is applied to a standardized tray conveying system conveying line body module established on the basis of standard aluminum profiles. Comprising the following steps: the lifting device comprises an upper top plate, a lower top plate and a guide rod supported between the upper top plate and the lower top plate, wherein a bearing lifting module is arranged between the upper top plate and the lower top plate, one end of the bearing lifting module is provided with a cylinder, and a telescopic rod of the cylinder is connected into the bearing lifting module; the top end of the guide rod is fixedly connected to the upper top plate through a bolt, a support column is arranged on the upper surface of the upper top plate at a position corresponding to the top end of the guide rod, the bolt is arranged in the support column, a linear bearing is arranged at the bottom end of the guide rod, and the guide rod and the linear bearing are fixed on the lower top plate; according to the technical scheme, only one transverse cylinder is adopted for driving, so that pneumatic executing elements and control elements are saved, and the maintenance cost is effectively saved; in the aspect of pressurizing and bearing after positioning, the positioning device has a more reliable leaning mode and excellent bearing capacity.

Description

Modular positioning device to withstand additional pressure loading

Technical field

The invention relates to a modular positioning device that can withstand additional pressure loading and is applied to the conveyor line module of a standardized pallet conveyor system based on standard aluminum profiles.

Background technique

The jacking positioning device is a commonly used positioning device in the conveyor line and is used to accurately position the pallet after it is in place at the work station. The current standard linear positioning device is designed such that the cylinder is arranged perpendicular to the conveying plane, so that the cylinder thrust directly acts on the gravity force direction of the load pallet to lift it for lifting. Although the load pallet can be lifted within the specified load, However, it cannot withstand larger pressures other than load, so processes such as pressure leak testing and press installation cannot be performed at this station.

In the current industry, when press-fitting or leak testing on non-standard production lines, special designs are mostly used to meet this demand. In the production process, the structure is generally divided into three types. The first is to use the wedge method. The cylinder is arranged horizontally to push the staggered wedges, so that the upper floating wedge moves upward. The upward contact between the wedge and the wedge pushed by the cylinder is converted from inclined plane contact to plane contact. to withstand the pressurized load from above; the second is to use a horizontally arranged cylinder to push the hinged shaft in the middle of a 90° deflected herringbone-shaped linkage device, so that the linkage changes from a folded form to an upright form, and uses the self-locking nature of the linkage device to withstand the upward pressure Pressurized load; third, a dual-cylinder design is adopted. The first cylinder is arranged perpendicular to the conveying plane and is used to lift the load pallet. The second cylinder is arranged horizontally and is used to push in the solid pad after lifting. Use a solid pad The block is supported between the upper top plate of the load-carrying pallet and the lower support base to resist the pressurized load from above.

The shortcomings of the above-mentioned prior art are: 1. The wedge method is not often used. In the process of making the wedge, an oil groove needs to be opened on the contact surface, which requires relatively large thrust. If maintenance is not paid attention to during use, , there is a risk of getting stuck after long-term use; second, the connecting rod method uses the connecting rod method for load-bearing positioning. Since the final stress-bearing structure is a hinged shaft, in order to design a more reliable hinged shaft, the cross-sectional size of the hinged shaft needs to be increased. , when the size of the pallet is small, it is not easy to meet the design needs; third, the dual-cylinder design method, this design requires the use of two pneumatic actuators, and doubles the detection points required for control, increasing the manufacturing cost. Among them, the first and third design solutions both produce sliding friction between steel blocks, which have high maintenance costs and carry the risk of stuck failure.

Contents of the invention

In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a modular positioning device that can withstand additional pressure loading. In the positioning device, a wedge transmission mode in the form of rolling friction is used to replace the original sliding friction form, so that the bearing The pressure contact surfaces become face-to-face contact, which can achieve a reliable pressure-bearing effect.

In order to achieve the above object, the technical solution adopted by the present invention is: a modular positioning device that can withstand additional pressure loading, including: an upper top plate, a lower top plate, and a guide rod supported between the upper top plate and the lower top plate. The upper top plate There is a load-bearing lifting module between it and the lower top plate. One end of the load-bearing lifting module is equipped with a cylinder, and the telescopic rod of the cylinder is connected to the load-bearing lifting module;

The top of the guide rod is fixedly connected to the upper top plate through bolts. A pillar is provided on the upper surface of the upper roof plate corresponding to the top of the guide rod. The bolt is arranged in the pillar. The bottom end of the guide rod is provided with a linear bearing. The guide rod is fixed on the lower top plate together with the linear bearing;

There are four guide rods, which are respectively installed between the upper top plate and the lower top plate and away from the four corners of the lifting module area and the cylinder area;

The load-bearing lifting module includes: an upper support block, a lower support block, and a slider wheel set arranged between the upper support block and the lower support block; the upper support block is arranged on the lower surface of the upper roof, and the lower support The block is arranged on the upper surface of the lower roof;

The upper support block is fixedly connected by bolts provided on the upper roof plate, and the bolts are embedded in the pillars on the surface of the upper roof plate. There are two pillars; the lower support block is fixedly connected to the lower roof plate by bolts;

The upper support block is a wedge structure with an inclined surface and a reverse inclined surface, and a plane is between the inclined surface and the reverse inclined surface; the upper surface of the lower supporting block is symmetrically provided with grooves;

The slider wheel set includes a slider and three sets of bearing wheels; the first set of bearing wheels and the second set of bearing wheels are respectively provided with two bearing rollers, which are symmetrically arranged on both sides of the slider; the third set of bearing wheels The set of bearing wheels is provided with a bearing roller, and the bearing roller is arranged at the front end of the slide block; the tail section of the slide block is also provided with a groove-shaped connection structure;

The bearing rollers of the first group of bearing wheels and the bearing rollers of the third group of bearing wheels are on the same level, and the bottom of the rollers is lower than the bottom surface of the slide block; the top of the bearing rollers of the second group of bearing wheels is higher than the top of the slide block. surface; the first set of bearing wheels and the third set of bearing wheels are push wheels, allowing the slide block wheel set to move horizontally on the plane of the lower support block; the second set of bearing wheels are lifting wheels, used to push the upper support block upwards sports;

There is a cylinder mounting plate between one end of the telescopic rod of the cylinder and the cylinder. The cylinder and the cylinder mounting plate are fixed by bolts. The bottom end of the cylinder mounting plate is connected to the lower top plate by bolts; the other end of the cylinder telescopic rod is connected by the cylinder. The sliding connection is in the groove connection structure at the end of the slider, which facilitates the cylinder adapter to slide up and down in the groove connection structure;

The lower surface of the lower roof plate is also provided with a guide rod limit block at a position corresponding to the guide rod. A cushion block is provided between the guide rod limit block and the lower surface of the lower roof plate. The guide rod limit block is fixed by bolts. On the pad, the pad is fixedly connected to the lower top plate through bolts at both ends.

The bolts in the above technical solution all use GB70.1 hexagon socket head bolts.

The specific working process of adopting the above technical solution is:

(1) The slider wheel set moving on the lower support block is laterally pushed by the cylinder. The second set of bearing wheels of the slider wheel set pushes the upper support block with an inclined surface to move upward under the directional action of the guide rod. At the same time, the third One group and the third group of bearing wheels move horizontally on the plane of the lower support block; the movement process at this time is that the bearing wheels convert sliding friction into rolling friction, which reduces the movement resistance and does not require long-term maintenance;

(2) When the second set of bearing wheels of the slider wheel set passes through the slope of the upper support block and reaches the flat surface, the loaded and positioned pallet reaches the highest point, and at this time the cylinder continues to push forward;

(3) When the second set of bearing wheels of the slider wheel set passes through the plane of the upper support block, the second set of bearing wheels enters the reverse slope. At this time, the first and third sets of bearing wheels of the slider wheel set simultaneously Enter the reverse inclined groove of the lower support plate; during this process, the upper support block and the slider wheel set both fall in the vertical direction; finally, the flat part of the upper support block, the flat part of the slider wheel set and the lower support block mutually Contact, close; at this time, additional pressure is added to the load pallet, and the pressure is transmitted from the contacting plates to the bottom surface of the load-bearing position; this structure has the greatest support effect at this time.

(4) When returning, the cylinder pulls back the slider wheel set, and the three sets of bearing wheels of the slider wheel set push the reverse slopes of the upper support block and the lower support block respectively, which can separate the various contact surfaces. At this time In theory, it can greatly avoid the sliding friction between the steel contact surfaces when pulling the slider wheel set; when the cylinder rod is fully retracted, the load-bearing position returns to the low position, completing an action cycle.

The technical principle of the invention is an improvement on the wedge propulsion lifting structure. The improvement lies in using rolling friction instead of the previous sliding friction, and designing a drop point at the highest lifting point to convert the pressure-bearing contact into a metal block. The surface-to-surface contact between the wheels instead of applying pressure to the wheel axle, and when the slider wheel set retreats, bearing wheels with different heights are used to cooperate with the inclined surfaces of the upper and lower support blocks to separate the upper and lower support blocks outwards, effectively avoiding the sliding friction zone There are no disadvantages; and when the various parts are close together, it can achieve a more reliable pressure-bearing effect.

The beneficial effects of adopting the above technical solution compared with the existing technology are:

The transmission efficiency is improved, the transmission idea of the inclined wedge is used, and the rolling friction is improved by using shafts and bearings, which can ultimately achieve a stable close force effect in the dual-cylinder structure; this technical solution only uses a horizontal The cylinder is installed for driving, which saves pneumatic actuators and control components, and effectively saves maintenance costs; in terms of pressurized load-bearing after positioning, it has a more reliable abutment method and superior load-bearing capacity.

Description of the drawings

Figure 1 is a schematic structural diagram of the positioning device of the present invention.

Figure 2 is a side view of Figure 1.

FIG. 3 is a top view of FIG. 1 .

Figure 4 is a perspective view of Figure 1.

Fig. 5 is a top view of Fig. 4 with the upper top plate removed.

Figure 6 is a structural diagram of the load-bearing lifting module of Figure 1.

Figure 7 is a structural diagram of the slider wheel assembly of Figure 6.

Figure 8 is a structural diagram of the upper support block of Figure 6.

Figure 9 is a structural diagram of the lower support block of Figure 6.

FIG10 is a state diagram of the second group of bearing wheels of the slider wheel group when they reach the inclined surface of the upper support block.

Figure 11 is a state diagram when the second set of bearing wheels of the slider wheel set crosses the inclined surface of the support block and reaches the flat surface.

Figure 12 is a state diagram when the second set of bearing wheels of the slider wheel set passes through the support block plane and enters the reverse slope.

In the picture, 01, bolt M8×25, 02, pillar, 03, upper roof plate, 04, guide rod, 05, linear bearing, 06, guide rod limit block, 07, bolt M8×20, 08, bolt M8×16 ,09. Slider wheel set, 10. Lower support block, 10-1. Lower support block groove, 11. Cylinder take-over, 12. Bolt M6×20, 13. Upper support block, 14. Bolt M8×35, 15 , Cylinder, 16. Mounting plate positioning pin, 19. Bolt M5×16, 20. Cylinder mounting plate, 21. Lower top plate, 09-1, Slider, 09-2, First set of bearing wheels, 09-3, No. The second set of bearing wheels, 09-4, the third set of bearing wheels. 09-5. Grooved connection structure.

Detailed ways

The content of the present invention will be further clarified below with reference to the embodiments and drawings, but the content of the present invention is not limited to the following embodiments.

As shown in Figure 1-12, the modular positioning device that can withstand additional pressure loading includes: an upper top plate 03, a lower top plate 21, and a guide rod 04 supported between the upper top plate 03 and the lower top plate 21. The upper top plate 03 There is a load-bearing lifting module between the lower top plate 21 and a cylinder 15 at one end of the load-bearing lifting module. The telescopic rod of the cylinder 15 is connected to the load-bearing lifting module; the load-bearing lifting module is used in pallets with a minimum size of 240 *240~400*400 pallets.

The top of the guide rod 04 is fixedly connected to the upper top plate 03 through bolts 01. The upper surface of the upper top plate 03 is provided with a pillar 02 at a position corresponding to the top of the guide rod 04. The bolt 01 is arranged in the pillar 02. The guide rod The bottom end of 04 is provided with a linear bearing 05, and the guide rod 04 and the linear bearing 05 are fixed on the lower top plate 21;

There are four guide rods 04, which are respectively arranged between the upper top plate 03 and the lower top plate 21, and at the four corners away from the area carrying the lifting module and the area of the cylinder 15;

The load-bearing lifting module includes: an upper support block 13, a lower support block 10, and a slider wheel set 09 arranged between the upper support block 13 and the lower support block 10; the upper support block 13 is arranged on the upper top plate 03 Lower surface, the lower support block 10 is provided on the upper surface of the lower top plate 21;

The upper support block 13 is fixedly connected through bolts 14 provided on the upper roof plate 03. The bolts 14 are embedded in the pillars 02 on the surface of the upper roof plate. There are two pillars 02; the lower support block 10 is connected through bolts. 08 is fixedly connected to the lower top plate 21;

The upper support block 13 is a wedge structure with an inclined surface and a reverse inclined surface, and there is a plane between the inclined surface and the reverse inclined surface; the upper surface of the lower supporting block 10 is symmetrically provided with grooves 10-1;

The slider wheel set 09 includes a slider 09-1 and three sets of bearing wheels; the first set of bearing wheels 09-2 and the second set of bearing wheels 09-3 are respectively provided with 2 bearing rollers, which are symmetrically arranged on Both sides of the slider 09-1; the third set of bearing wheels 09-4 is provided with a bearing roller, and the bearing roller is arranged at the front end of the slider 09-1; the tail section of the slider 09-1 is also provided with There is a slotted connection structure 09-5;

The bearing rollers of the first group of bearing wheels 09-2 and the bearing rollers of the third group of bearing wheels 09-4 are on the same horizontal plane, and the bottom of the rollers is lower than the bottom surface of the slider 09-1; the second group of bearing wheels 09 The top of the bearing roller of -3 is higher than the top surface of the slider 09-1; the first set of bearing wheels 09-2 and the third set of bearing wheels 09-4 are push wheels, so that the slider wheel set 09 is on the plane of the lower support block 10 The upper horizontal movement; the second set of bearing 09-3 wheel is the lifting wheel, used to push the upper support block 13 to move upward;

A cylinder mounting plate 20 is provided between one end of the telescopic rod of the cylinder 15 and the cylinder 15. The cylinder 15 and the cylinder mounting plate 20 are fixed by bolts. The bottom end of the cylinder mounting plate 20 is fixedly connected to the lower top plate 21 through bolts 12; the cylinder The other end of the telescopic rod is slidably connected to the groove connection structure 09-5 at the rear end of the slider 09-1 through the cylinder joint 11, which facilitates the cylinder joint 11 to slide up and down in the groove connection structure 09-5;

The lower surface of the lower top plate 21 is also provided with a guide rod limiter block 06 at a position corresponding to the guide rod 04. A cushion block is provided between the guide rod limiter block 06 and the lower surface of the lower top plate 21. The guide rod limiter is The bit block 06 is fixed on the cushion block through bolts 07, and the cushion block is fixedly connected to the lower top plate 21 through bolts 19 at both ends.

The ejection process of the positioning device of the present invention includes:

(1) The slider wheel set 09 moving on the lower support block 10 is pushed laterally by the cylinder 15, and the second group of bearing wheels 09-3 of the slider wheel set 09 pushes the upper support block 13 with an inclined surface above to move upward under the directional action of the guide rod 04. At the same time, the first group 09-2 and the third group of bearing wheels 09-4 move horizontally on the plane of the lower support block 10. In this movement process, the bearing wheels convert sliding friction into rolling friction, which reduces movement resistance and does not require long-term maintenance.

(2) When the second set of bearing wheels 09-3 of the slider wheel set 09 reaches the plane through the slope of the upper support block 13, the loaded and positioned pallet reaches the highest point, and at this time the cylinder 15 continues to push forward;

(3) When the second set of bearing wheels 09-3 of the slider wheel set 09 passes through the plane of the upper support block 13, the second set of bearing wheels 09-3 enters the reverse slope. At this time, the second set of bearing wheels 09-3 of the slider wheel set 09 One set of bearing wheels 09-2 and the third set of bearing wheels 09-4 enter the reverse inclined groove 10-1 of the lower support plate 10 at the same time; during this process, the upper support block 13 and the slider wheel set 09 both fall in the vertical direction; Finally, the flat part of the upper support block 13, the flat part of the slider wheel set 09 and the lower support block 10 come into contact with each other. At this time, additional pressure is added to the load pallet, and the pressure is transmitted from the contacting plate surfaces to The bottom surface of the load-bearing position; this structure has the greatest support effect at this time.

(4) When returning, the cylinder 15 pulls back the slider wheel set 09, and the three sets of bearing wheels of the slider wheel set 09 push the reverse slopes of the upper support block 13 and the lower support block 10 respectively, which can separate the various contact surfaces. At this time, in theory, the sliding friction between the steel contact surfaces when pulling the slider wheel set 09 can be greatly avoided; when the cylinder rod 15 is fully retracted, the load-bearing positioning returns to the low position, completing an action cycle.

Claims (6)

1. A modular positioning device that can withstand additional pressure loading, characterized by including: an upper top plate, a lower top plate, and a guide rod supported between the upper top plate and the lower top plate; the lower surface of the lower top plate corresponds to the guide rod. A guide rod limit block is also provided at the position; a load-bearing lifting module is arranged between the upper top plate and the lower top plate, and a cylinder is provided at one end of the load-bearing lifting module, and the telescopic rod of the cylinder is connected to the load-bearing lifting module; The above-mentioned load-bearing lifting module includes: an upper support block, a lower support block, and a slider wheel set arranged between the upper support block and the lower support block; the upper support block is arranged on the lower surface of the upper roof, and the lower support block It is arranged on the upper surface of the lower top plate; the upper support block is a wedge structure with an inclined surface and a reverse inclined surface, and there is a plane between the inclined surface and the reverse inclined surface; the upper surface of the lower supporting block is symmetrically provided with grooves; The slide block wheel set includes a slide block and three sets of bearing wheels; the first set of bearing wheels and the second set of bearing wheels are each equipped with 2 bearing rollers, which are symmetrically arranged on both sides of the slide block; the third set of bearing wheels is equipped with There is a bearing roller, and the bearing roller is arranged at the front end of the slider; the tail section of the slider is also provided with a groove connection structure; the bearing rollers of the first set of bearing wheels and the bearing rollers of the third set of bearing wheels are in On the same horizontal plane, the bottom of the bearing rollers is lower than the bottom surface of the slide block; the top of the bearing rollers of the second set of bearing wheels is higher than the top surface of the slide block; the first set of bearing wheels and the third set of bearing wheels are push wheels, so that The slide block wheel set moves horizontally on the plane of the lower support block; when the second set of bearing wheels of the slide block wheel set passes through the plane of the upper support block, the second set of bearing wheels enters the reverse slope. At this time, the slide block wheel set The first and third sets of bearing wheels enter the reverse slope groove of the lower support plate at the same time; the second set of bearing wheels are lifting wheels used to push the upper support block upward. 2. The modular positioning device capable of withstanding additional pressure loading according to claim 1, characterized in that the top of the guide rod is fixedly connected to the upper top plate through bolts, and the upper surface of the upper top plate corresponds to the position of the top of the guide rod. A pillar is provided, bolts are arranged in the pillar, a linear bearing is arranged at the bottom of the guide rod, and the guide rod and the linear bearing are fixed on the lower top plate. 3. The modular positioning device capable of withstanding additional pressure loading according to claim 1 or 2, characterized in that four guide rods are provided, respectively arranged between the upper top plate and the lower top plate and away from the load-bearing lifting At the four corners of the module area and cylinder area. 4. The modular positioning device that can withstand additional pressure loading according to claim 1, characterized in that the upper support block is fixedly connected through bolts provided on the upper roof plate, and the bolts are embedded in the pillars on the surface of the upper roof plate. , the number of the pillars is 2; the lower support block is fixedly connected to the lower top plate through bolts. 5. The modular positioning device capable of withstanding additional pressure loading according to claim 1, characterized in that a cylinder mounting plate is provided between one end of the telescopic rod of the cylinder and the cylinder, and the cylinder and the cylinder mounting plate are fixed by bolts. , the bottom end of the cylinder mounting plate is fixedly connected to the lower top plate through bolts; the other end of the cylinder telescopic rod is slidingly connected to the groove connection structure at the end of the slider through the cylinder connector. 6. The modular positioning device capable of withstanding additional pressure loading according to any one of claims 1-5, characterized in that the specific working process of the positioning device is: (1) The slider wheel set moving on the lower support block is laterally pushed by the cylinder. The second set of bearing wheels of the slider wheel set pushes the upper support block with an inclined surface to move upward under the directional action of the guide rod. At the same time, the third One set and the third set of bearing wheels move horizontally on the plane of the lower support block; (2) When the second set of bearing wheels of the slider wheel set passes through the slope of the upper support block and reaches the flat surface, the loaded and positioned pallet reaches the highest point, and at this time the cylinder continues to push forward; (3) During this process, the upper support block and the slider wheel set both fall in the vertical direction; finally, the flat part of the upper support block, the flat part of the slider wheel set and the lower support block come into contact with each other; at this time, the When the load pallet adds additional pressure, the pressure is transmitted from the contacting plates to the bottom surface where the load is positioned; this structure has the greatest support effect at this time; (4) When returning, the cylinder pulls back the slider wheel set, and the three sets of bearing wheels of the slider wheel set push the reverse slopes of the upper support block and the lower support block respectively, which can separate the various contact surfaces; when the cylinder When the rod is fully retracted, the load-bearing position returns to the low position, completing an action cycle.