Holding, clamping and centering conveying device

Abstract

The utility model discloses a clamping centering conveying device which comprises an unpowered roller frame, a plurality of sets of unpowered rollers are rotationally installed in the unpowered roller frame, a hand wheel is arranged on one side of the unpowered roller frame, two sets of guide rods are arranged in the unpowered roller frame, the two sets of guide rods are arranged in a relatively inclined mode, and the two sets of guide rods are arranged on the other side of the unpowered roller frame. And the right side of the hand wheel is in threaded connection with a guide rod through a lead screw, and a powered roller frame is arranged on the front side of the unpowered roller frame. A product needing to be clamped is placed on the top of the mounting plate, then the two sets of opposite racks can be driven to move when the transmission gear is rotated, the rack connecting base, the sliding block connecting plate, the heightening base, the heightening base connecting base, the clamping rod mounting base and the clamping rods can be driven to move towards the sides close to one another through movement, and the four clamping rods move towards the center at the same time; and therefore, flexible design can be carried out according to the weight and the shape of the part.

Description

Technical Field

[0001] The utility model belongs to the technical field of centering, and in particular relates to a clamping centering conveying device. Background Art

[0002] Centering refers to the centering device in the perforation and rolling production of seamless steel pipes. Correct centering of the push rod is the primary process requirement. Inaccurate centering of the push rod and deviation of the push head from the rolling center will cause uneven wall thickness of the rough tube and intensify the vibration of the perforation and rolling process. The huge rolling force will accelerate the wear of the equipment and increase the consumption of tools such as the push rod and the push head. The greater harm is that the metal slip of the rough tube during the perforation process is increased, the perforation and rolling speed is reduced, the output is affected, and it will also cause production accidents such as the puncher being stuck. Usually, the three-roller centering device of the puncher has two transmission modes: gear transmission and connecting rod transmission.

[0003] The existing publication number is: CN214649432U, which discloses a conveying device for clamping and sealing boxes, including symmetrically arranged fixed plates; the fixed plates are movably connected with movable blocks, the movable blocks are movably connected with movable plates, and the opposite side walls of the two movable plates are fixedly connected with clamping plates, one end of the clamping plates is fixedly connected with a baffle, and the other end of the clamping plates is movably connected with a pressure plate. The utility model facilitates clamping the carton and conveying it to a suitable position before sealing the carton.

[0004] However, there are some problems with the existing technology: the entire assembly line uses powered rollers, which are costly. After workpieces of different specifications are parked in place, the centers of the workpieces are not in the same position. The robot program needs to be adjusted for each change of shape to ensure that the robot grabs the correct position, which cannot achieve rapid shape change and requires frequent shape change. The workpiece will be offset during its self-sliding process. When the workpiece reaches the powered roller, it is tightly attached to the front and back. When the front clamps the workpiece, it will squeeze the workpiece behind. Therefore, we propose a clamping and centering conveying device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a clamping and centering conveying device, which overcomes the problems of concentricity and rapid changeover of the parking positions of workpieces of different specifications through V-plate positioning and precise positioning of the clamping device.

[0006] The utility model is implemented as follows: a clamping and centering conveying device comprises an unpowered roller frame, a plurality of groups of unpowered rollers are rotatably installed inside the unpowered roller frame, a handwheel is provided on one side of the unpowered roller frame, two groups of guide rods are provided inside the unpowered roller frame, the two groups of guide rods are relatively inclined, the right side of the handwheel is threadedly connected to the guide rod through a screw rod, a powered roller frame is provided on the front side of the unpowered roller frame, a plurality of groups of powered rollers are provided inside the powered roller frame, connecting gears are fixedly connected at both ends of the plurality of groups of powered rollers, and a clamping device for clamping a workpiece is provided on the top of the powered roller frame.

[0007] Optionally, a V-plate mounting bracket is fixedly installed on the front end of the powered roller frame, a V-plate mounting cover is fixedly installed on the top of the V-plate mounting bracket by bolts, a V-plate is slidably installed inside the V-plate mounting cover, a locking handle is threadedly connected to the inside of the V-plate mounting cover, the bottom of the locking handle is in contact with the top of the V-plate, a reducer is fixedly installed on the bottom of the powered roller frame, and the reducer is connected through a chain and a connecting gear transmission, a brake cylinder is fixedly installed on the front side of the unpowered roller frame, and the brake cylinder is used in conjunction with the powered roller, two groups of sensor mounting brackets are fixedly installed on one side of the top of the powered roller frame, sensors are fixedly installed inside the sensor mounting brackets, and one group of the sensors is used for sensing the rear start of the brake cylinder.

[0008] Optionally, the clamping device includes a mounting plate, which is fixedly mounted on the top of the powered roller frame, a transmission gear is arranged on the top of the mounting plate, two groups of racks are meshed on the surface of the transmission gear, a rack connecting seat is fixedly mounted on the outer side of the rack, a slider connecting plate is fixedly mounted on the outer side of the rack connecting seat, four groups of elevated seats are arranged on the top of the mounting plate, two groups of elevated seat connecting seats are arranged on both sides of the top of the mounting plate, the bottom of the two groups of elevated seat connecting seats are fixedly mounted on the top of the elevated seat, a clamping rod mounting seat is fixedly mounted on the top of the elevated seat, and a clamping rod is fixedly mounted on the top of each group of clamping rod mounting seats.

[0009] Optionally, a connecting base is fixedly installed on the top of the mounting plate, a manual slide is connected to the internal thread of the connecting base, an insertion-searching photoelectric mounting plate is fixedly installed on the top of the manual slide, an insertion-searching photoelectric is fixedly installed on the top of the insertion-searching photoelectric mounting plate, and an insertion-searching photoelectric probe used in conjunction with the insertion-searching photoelectric is fixedly installed on one side of the clamping rod mounting seat.

[0010] Optionally, a slide rail is fixedly installed at the bottom of the elevated seat, and the slide rail is slidably connected to a positioning block matched with the top of the mounting plate.

[0011] Optionally, a telescopic cylinder is fixedly installed on the bottom of the mounting plate, a cylinder push plate is fixedly installed on the telescopic end of the elevated seat connecting seat of the telescopic cylinder, and the top of the cylinder push plate and the bottom of the elevated seat connecting seat are fixedly installed.

[0012] Optionally, a centering sleeve is provided on the top of the surface of the clamping rod, and the centering sleeve is used to wrap the clamping rod.

[0013] Optionally, perforated foot cups are fixedly mounted at the four corners of the bottom of the powered roller frame, and the holes on the top of the perforated foot cups can be fixed to the ground by screws.

[0014] Optionally, a bearing seat is fixedly mounted on the top of the mounting plate, and the top of the bearing seat and the bottom of the transmission gear are fixedly mounted.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Place the product to be clamped on the top of the mounting plate, and then rotate the transmission gear to drive the two sets of relative racks to move. The movement will drive the rack connecting seat, slider connecting plate, heightening seat, heightening seat connecting seat, clamping rod mounting seat and clamping rod to move closer to each other. The four clamping rods move toward the center at the same time to achieve workpiece centering, so that the design can be flexibly carried out according to the weight and shape of the parts.

[0017] 2. Through the setting of the clamping device, the product to be clamped is placed on the top of the mounting plate, and then the transmission gear can be rotated to drive the two sets of relative racks to move. The movement will drive the rack connecting seat, slider connecting plate, heightening seat, heightening seat connecting seat, clamping rod mounting seat and clamping rod to move closer to each other. The four clamping rods move toward the center at the same time to realize the centering of the workpiece, so that it can be flexibly designed according to the weight and shape of the parts.

[0018] 3. When there is no workpiece in the powered roller frame, the reducer drives the powered roller to rotate continuously until a workpiece enters the powered roller frame. The first sensor installed in the sensor mounting bracket senses the presence of the workpiece, and the brake cylinder installed at the end of the unpowered roller frame is activated to brake two or more unpowered rollers at the end of the unpowered roller frame line, so that the workpiece behind stops at this position.

[0019] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the unpowered roller frame provided by the utility model;

[0021] Figure 2This is a schematic diagram of the top structure of the mounting plate provided by the utility model;

[0022] Figure 3 The utility model provides Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 The utility model provides Figure 2 Enlarged view of point B in the middle;

[0024] Figure 5 The utility model provides Figure 1 Enlarged view of point C in the middle;

[0025] Figure 6 The utility model provides Figure 1 Enlarged view of point D in the middle.

[0026] In the figure: 1, non-powered roller frame; 2, non-powered roller; 3, hand wheel; 4, guide rod; 5, powered roller frame; 6, powered roller; 7, clamping device; 71, mounting plate; 72, telescopic cylinder; 73, cylinder push plate; 74, slide rail; 75, heightening seat; 76, heightening seat connecting seat; 77, clamping rod mounting seat; 78, clamping rod; 79, bearing seat; 710, transmission gear; 711, slider connecting plate; 712, rack connecting Connector; 713, rack; 714, manual slide; 715, plug-in photoelectric mounting board; 716, plug-in photoelectric; 717, plug-in photoelectric probe; 718, centering sleeve; 8, V-shaped plate; 9, locking handle; 10, V-shaped plate mounting cover; 11, V-shaped plate mounting bracket; 12, reducer; 13, sensor mounting bracket; 14, sensor; 15, foot cup with holes; 16, brake cylinder; 17, connecting gear; 18, connecting base. DETAILED DESCRIPTION

[0027] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 6 As shown, an embodiment of the utility model provides a clamping and centering conveying device, including an unpowered roller frame 1, a plurality of groups of unpowered rollers 2 are rotatably installed inside the unpowered roller frame 1, a hand wheel 3 is arranged on one side of the unpowered roller frame 1, two groups of guide rods 4 are arranged inside the unpowered roller frame 1, the two groups of guide rods 4 are arranged relatively inclined, the right side of the hand wheel 3 is threadedly connected to the guide rod 4 through a screw rod, a powered roller frame 5 is arranged on the front side of the unpowered roller frame 1, a plurality of groups of powered rollers 6 are arranged inside the powered roller frame 5, connecting gears 17 are fixedly connected at both ends of the plurality of groups of powered rollers 6, and a clamping device 7 for clamping a workpiece is arranged on the top of the powered roller frame 5.

[0029] Specifically, Figures 1 to 6 As shown, the operator places the product to be processed on the unpowered roller frame 1, and the workpiece is driven by the unpowered roller 2 to slide down. During the self-sliding process, there is a possibility of deviation. When the workpiece slides down to the guide rod 4, the bearing installed on the guide rod 4 guides the workpiece to the middle position of the roller line for correction. According to the different specifications and sizes of products, the hand wheel 3 can be shaken to drive the screw to rotate, and the size of the opening of the guide rod 4 can be adjusted to ensure that the workpiece can pass smoothly; when there is no workpiece on the powered roller frame 5, the reducer 12 drives the powered roller 6 to rotate continuously until a workpiece enters the powered roller frame 5.

[0030] Furthermore, a V-plate mounting bracket 11 is fixedly installed at the front end of the powered roller frame 5, a V-plate mounting cover 10 is fixedly installed on the top of the V-plate mounting bracket 11 by bolts, a V-plate 8 is slidably installed inside the V-plate mounting cover 10, a locking handle 9 is internally threadedly connected to the V-plate mounting cover 10, the bottom of the locking handle 9 is in contact with the top of the V-plate 8, a reducer 12 is fixedly installed at the bottom of the powered roller frame 5, the reducer 12 is connected through a chain and a connecting gear 17, a brake cylinder 16 is fixedly installed on the front side of the unpowered roller frame 1, the brake cylinder 16 is used in conjunction with the powered roller 6, two sets of sensor mounting brackets 13 are fixedly installed on one side of the top of the powered roller frame 5, sensors 14 are fixedly installed inside the sensor mounting bracket 13, one set of sensors 14 is used for sensing and then starting the brake cylinder 16.

[0031] Specifically, Figures 1 to 6 As shown, the first sensor 14 installed in the sensor mounting bracket 13 senses the presence of a workpiece, and the brake cylinder 16 installed at the end of the unpowered roller frame 1 is activated to brake two or more unpowered rollers 2 at the end of the unpowered roller frame 1, so that the following workpiece stops at this position; when the workpiece passes the second sensor 14, the sensor 14 transmits a signal to the clamping device 7, at which time the workpiece has been positioned under the action of the V-plate 8, and the clamping device 7 can clamp the product to achieve the product centering function.

[0032] Furthermore, the clamping device 7 includes a mounting plate 71, which is fixedly mounted on the top of the powered roller frame 5. A transmission gear 710 is arranged on the top of the mounting plate 71, and two groups of racks 713 are meshed on the surface of the transmission gear 710. A rack connecting seat 712 is fixedly mounted on the outer side of the rack 713, and a slider connecting plate 711 is fixedly mounted on the outer side of the rack connecting seat 712. Four groups of elevated seats 75 are arranged on the top of the mounting plate 71, wherein one side of two groups of elevated seats 75 are fixedly mounted to the top of the slider connecting plate 711, and two groups of elevated seat connecting seats 76 are arranged on both sides of the top of the mounting plate 71, and the bottom of the two groups of elevated seat connecting seats 76 are fixedly mounted to the top of the elevated seat 75, and a clamping rod mounting seat 77 is fixedly mounted on the top of the elevated seat 75, and a clamping rod 78 is fixedly mounted on the top of each group of clamping rod mounting seats 77.

[0033] Specifically, Figures 1 to 6 As shown, the product to be clamped is placed on the top of the mounting plate 71, and then the transmission gear 710 can be rotated to drive the two sets of relative racks 713 to move. The movement of 713 will drive the rack connecting seat 712, the slider connecting plate 711, the heightening seat 75, the heightening seat connecting seat 76, the clamping rod mounting seat 77 and the clamping rod 78 to move toward each other. The four clamping rods 78 move toward the center at the same time to achieve workpiece centering, so that it can be flexibly designed according to the weight and shape of the parts.

[0034] Furthermore, a connecting base 18 is fixedly installed on the top of the mounting plate 71, and a manual slide 714 is connected to the internal thread of the connecting base 18. An insertion-searching photoelectric mounting plate 715 is fixedly installed on the top of the manual slide 714. An insertion-searching photoelectric 716 is fixedly installed on the top of the insertion-searching photoelectric mounting plate 715. An insertion-searching photoelectric probe 717 used in conjunction with the insertion-searching photoelectric 716 is fixedly installed on one side of the clamping rod mounting seat 77.

[0035] Specifically, Figures 1 to 6 As shown, at this time, the threaded rotating rod in the connecting base 18 can be rotated, and when the threaded rotating rod rotates, it will drive the manual slide 714 to move to one side. When the manual slide 714 moves, it will drive the insertion photoelectric mounting plate 715 and the insertion photoelectric 716 to move to one side. The insertion photoelectric 716 will gradually approach the insertion photoelectric probe 717, thereby realizing that when the clamping rod 78 is in a loose state, the insertion photoelectric probe 717 is driven to move. When the insertion photoelectric probe 717 and the insertion photoelectric 716 are in contact, the clamping rod 78 will stop moving.

[0036] Furthermore, a slide rail 74 is fixedly installed at the bottom of the heightened seat 75 , and the slide rail 74 is slidably connected to a positioning block matched with the top of the mounting plate 71 .

[0037] Specifically, Figures 1 to 6As shown, the elevated seat 75 and the parts on its top can be supported, and the stability of the elevated seat 75 during movement can be increased to prevent the elevated seat 75 from being offset during movement.

[0038] Furthermore, a telescopic cylinder 72 is fixedly installed on the bottom of the mounting plate 71, a cylinder push plate 73 is fixedly installed on the telescopic end of the elevated seat connecting seat 76 of the telescopic cylinder 72, and the top of the cylinder push plate 73 and the bottom of the elevated seat connecting seat 76 are fixedly installed.

[0039] Specifically, Figures 1 to 6 As shown, when the workpiece needs to be centered, the telescopic cylinder 72 is first started. The telescopic end of the telescopic cylinder 72 will drive the cylinder push plate 73 to move to the left. The movement of the cylinder push plate 73 will cause the heightening seat 75, the clamping rod mounting seat 77 and the clamping rod 78 to move toward one side close to each other. At this time, the four clamping rods 78 move toward the center at the same time, achieving the advantage of workpiece centering.

[0040] Furthermore, a centering sleeve 718 is provided on the top of the surface of the clamping rod 78 , and the centering sleeve 718 is used to wrap the clamping rod 78 .

[0041] Specifically, Figures 1 to 6 As shown, when the workpiece is centered and placed on the top of the mounting plate 71, since the centering sleeve 718 is made of soft rubber, the workpiece can be centered to prevent wear.

[0042] Furthermore, perforated foot cups 15 are fixedly mounted at the four corners of the bottom of the powered roller frame 5, and the holes on the top of the perforated foot cups 15 can be fixed to the ground by screws.

[0043] Specifically, Figures 1 to 6 As shown, a screw can be passed through the perforated foot cup 15, and then the screw can be hammered into the ground by a tool such as a hammer, thereby preventing the vibration generated by the powered roller frame 5 during operation, thereby causing the powered roller frame 5 to shake.

[0044] Furthermore, a bearing seat 79 is fixedly mounted on the top of the mounting plate 71 , and the top of the bearing seat 79 and the bottom of the transmission gear 710 are fixedly mounted.

[0045] Specifically, Figures 1 to 6 As shown, firstly, the stability of the transmission gear 710 during rotation can be improved, and the friction of the transmission gear 710 during rotation can be reduced, thereby improving the stability of the transmission gear 710 during operation.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and centering conveying device, comprising an unpowered roller frame (1), characterized in that: A plurality of groups of unpowered rollers (2) are rotatably mounted inside the unpowered roller frame (1), a hand wheel (3) is arranged on one side of the unpowered roller frame (1), two groups of guide rods (4) are arranged inside the unpowered roller frame (1), the two groups of guide rods (4) are arranged at an angle relative to each other, the right side of the hand wheel (3) is threadedly connected to the guide rod (4) via a screw rod, a powered roller frame (5) is arranged on the front side of the unpowered roller frame (1), a plurality of groups of powered rollers (6) are arranged inside the powered roller frame (5), both ends of the plurality of groups of powered rollers (6) are fixedly connected to connecting gears (17), and a clamping device (7) for clamping a workpiece is arranged on the top of the powered roller frame (5).

2. A clamping and centering conveying device according to claim 1, characterized in that: A V-shaped plate mounting bracket (11) is fixedly mounted on the front end of the powered roller frame (5); a V-shaped plate mounting cover (10) is fixedly mounted on the top of the V-shaped plate mounting bracket (11) by means of bolts; a V-shaped plate (8) is slidably mounted inside the V-shaped plate mounting cover (10); a locking handle (9) is threadedly connected to the inside of the V-shaped plate mounting cover (10); the bottom of the locking handle (9) is in contact with the top of the V-shaped plate (8); a reducer (12) is fixedly mounted on the bottom of the powered roller frame (5) The reducer (12) is connected by a chain and a connecting gear (17). A brake cylinder (16) is fixedly installed on the front side of the unpowered roller frame (1). The brake cylinder (16) is used in conjunction with the powered roller (6). Two groups of sensor mounting brackets (13) are fixedly installed on one side of the top of the powered roller frame (5). Sensors (14) are fixedly installed inside the sensor mounting brackets (13), and one group of the sensors (14) is used to sense and then start the brake cylinder (16).

3. The clamping and centering conveying device according to claim 1 is characterized in that: The clamping device (7) comprises a mounting plate (71), wherein the mounting plate (71) is fixedly mounted on the top of the powered roller frame (5), a transmission gear (710) is arranged on the top of the mounting plate (71), two groups of racks (713) are meshed on the surface of the transmission gear (710), a rack connecting seat (712) is fixedly mounted on the outer side of the rack connecting seat (712), a slider connecting plate (711) is fixedly mounted on the outer side of the rack connecting seat (712), and a transmission gear (710) is arranged on the top of the mounting plate (71). Four groups of elevated seats (75) are provided, one side of two groups of the elevated seats (75) is fixedly mounted to the top of the slider connecting plate (711), two groups of elevated seat connecting seats (76) are provided on both sides of the top of the mounting plate (71), the bottom of the two groups of elevated seat connecting seats (76) is fixedly mounted to the top of the elevated seat (75), a clamping rod mounting seat (77) is fixedly mounted on the top of the elevated seat (75), and a clamping rod (78) is fixedly mounted on the top of each group of the clamping rod mounting seats (77).

4. A clamping and centering conveying device according to claim 3, characterized in that: A connecting base (18) is fixedly installed on the top of the mounting plate (71), a manual slide (714) is connected to the internal thread of the connecting base (18), an insertion-searching photoelectric mounting plate (715) is fixedly installed on the top of the manual slide (714), an insertion-searching photoelectric (716) is fixedly installed on the top of the insertion-searching photoelectric mounting plate (715), and an insertion-searching photoelectric probe (717) used in conjunction with the insertion-searching photoelectric (716) is fixedly installed on one side of the clamping rod mounting seat (77).

5. The clamping and centering conveying device according to claim 3 is characterized in that: A slide rail (74) is fixedly mounted on the bottom of the heightened seat (75), and the slide rail (74) is slidably connected to a positioning block matched with the top of the mounting plate (71).

6. The clamping and centering conveying device according to claim 3 is characterized in that: A telescopic cylinder (72) is fixedly mounted on the bottom of the mounting plate (71), a cylinder push plate (73) is fixedly mounted on the telescopic end of the elevated seat connecting seat (76) of the telescopic cylinder (72), and the top of the cylinder push plate (73) and the bottom of the elevated seat connecting seat (76) are fixedly mounted.

7. The clamping and centering conveying device according to claim 3 is characterized in that: A centering sleeve (718) is provided at the top of the surface of the clamping rod (78), and the centering sleeve (718) is used to wrap the clamping rod (78).

8. The clamp centering conveying device according to claim 1, characterized in that: Four corners of the bottom of the powered roller frame (5) are fixedly mounted with perforated foot cups (15), and the holes on the top of the perforated foot cups (15) can be fixed to the ground by screws.

9. The clamp centering conveying device according to claim 3 is characterized in that: A bearing seat (79) is fixedly mounted on the top of the mounting plate (71), and the top of the bearing seat (79) and the bottom of the transmission gear (710) are fixedly mounted.

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