Cantilever type chain positioner

Abstract

The utility model relates to a cantilever type chain position changing machine which comprises a structural part. The electric hoist is used for driving the chain driving framework to move up and down; the chain driving framework comprises two vertical plates which are connected in a left-right spaced mode, a connecting rod is installed between the two vertical plates, and corresponding annular protruding edges are arranged on the connecting rod at intervals; the chain driving mechanism comprises a gear rotationally installed between the two vertical plates, and the gear is connected with a chain ring in an engaged mode; the anti-rotation mechanism comprises a clamping piece rotationally mounted on the lifting hook; after the lifting hook is hooked with the connecting rod, the clamping piece rotates to the groove of the clamping piece and is clamped with the tail end part of the lifting hook, and the two sides of the clamping piece are integrally formed and bent to form side edge plates arranged between the two annular convex edges; after the clamping piece rotates in place, a corresponding n-shaped piece is fixedly connected between the lifting hook and the clamping piece and located above the connecting rod. According to the utility model, the stability of turnover and displacement of the workpiece is effectively improved through the anti-rotation mechanism, and the anti-rotation mechanism can be mounted in a smaller space.

Description

Technical Field

[0001] This utility model relates to the field of chain positioner technology, specifically to a cantilever chain positioner. Background Technology

[0002] Chain positioners achieve efficient transmission between different wheel sets through the flexible traction of chains, thereby enabling the flipping and repositioning of workpieces. They can achieve ±360° workpiece repositioning and can stop at any angle to meet the welding angle requirements of workers, ensuring the appropriate wrap angle of the workpiece and preventing slippage.

[0003] The chain positioner mainly consists of structural components, an electric hoist, a chain drive mechanism, and a chain drive frame. The wire rope of the electric hoist is connected to the chain drive frame through a pulley and a hook to drive the chain drive frame to move up and down. However, relying solely on the hook to connect the chain drive frame results in poor connection stability and can easily cause the chain drive frame to deflect left and right during flipping and positioning, thus affecting the stability of the workpiece and the progress and efficiency of the flipping.

[0004] Therefore, the research objective of this utility model is to design a cantilever chain positioner that can ensure the connection stability between the hook and the chain drive frame through an anti-rotation mechanism, thereby effectively improving the stability of workpiece flipping and repositioning, and enabling the installation of the anti-rotation mechanism in a relatively small space. Utility Model Content

[0005] In view of the technical problems existing in the prior art, the present invention provides a cantilever chain positioner, which can effectively solve the technical problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A cantilever chain positioner, comprising:

[0008] The structural component includes a cantilever frame that is vertically and fixedly supported and mounted on a base plate, the cantilever frame being composed of two cantilever columns arranged in an inverted L-shape connected together;

[0009] An electric hoist is installed at the top front end of the cantilever frame to drive the chain drive structure to move up and down.

[0010] The chain-driven structure includes two vertical plates that are fixedly connected at left and right intervals, and corresponding connecting rods are horizontally fixedly installed on the top of the two vertical plates. The connecting rods are provided with corresponding annular protrusions at intervals. A set of steel wire ropes connected to the electric hoist slides downward and passes through corresponding pulleys. A corresponding hook is rotatably installed between the two pulleys. The hook is hooked to the connecting rod located between the two annular protrusions.

[0011] The chain drive mechanism includes a gear rotatably mounted between the two upright plates, and an electric motor for driving the gear to rotate is provided on the outer side of either of the upright plates;

[0012] A chain ring, which meshes with the gear and extends downward to accommodate a displaced workpiece;

[0013] The anti-rotation mechanism includes a hinge seat fixed at the vertical bend of the hook. An n-shaped locking member is rotatably mounted on the hinge seat. The bottom of the locking member has a groove that matches the end of the hook. After the hook is connected to the connecting rod, the locking member rotates until its groove engages with the end of the hook. Both sides of the locking member are integrally bent to form side plates between the two annular protrusions. After the locking member is rotated to its position, a corresponding n-shaped member is fixedly connected between the hook and the locking member above the connecting rod. The bottom of the n-shaped member engages with the outer bottom of the hook, and its two ends are fixedly connected to the two side plates of the locking member.

[0014] The end portion of the n-shaped component is fixedly connected to the two side plates of the positioning component by welding.

[0015] The outer sides of the two side plates of the positioning component are inclinedly welded and fixed with corresponding connecting pipes. The end of the n-shaped component is provided with an external thread that matches the nut. When the n-shaped component is installed in place, the end of the n-shaped component is inserted into the corresponding connecting pipe and tightened by the matching nut.

[0016] The bottom of the two side plates of the locking component is set as an arc surface. After the hook is connected to the connecting rod and the locking component is rotated into place, the side plates of the locking component are respectively attached to the inner sidewall of the two annular protrusions.

[0017] An L-shaped plate is fixedly installed on the inner side of the upright plate above the connecting rod by bolts. Both L-shaped plates extend upward and are fixedly connected at their tops by bolts.

[0018] The outer side of the other vertical plate, where the motor is not installed, may be equipped with counterweights for adjusting balance. The four ends of the vertical plate are laterally fixed with corresponding sleeve rods, and the counterweights are fitted through the sleeve rods and locked in place by corresponding nuts.

[0019] The chain positioner also includes a connecting mechanism for ensuring the number of meshing teeth between the chain ring and the gear. The connecting mechanism includes at least two guide wheels rotatably mounted between the two upright plates. The two guide wheels are symmetrically arranged on the outside of the chain ring and on both sides of the lower end of the gear.

[0020] The front end of the cantilever frame is equipped with a corresponding bracket. The electric hoist is slidably mounted on the front end of the cantilever frame by the cooperation of two sets of pulleys on the left and right. Each set of pulleys is connected to a drive motor.

[0021] The chain positioner also includes a limiting mechanism for controlling the outward movement distance of the electric hoist. The limiting mechanism includes a set of L-shaped uprights fixedly installed at the front end of the cantilever frame and located at the rear side of the support. J-shaped limiting members are installed between the L-shaped uprights through corresponding grooves. A pulley not connected to the drive motor is connected to a corresponding limiting rod, and the limiting rod extends to the J-shaped limiting member.

[0022] The structural component includes two sets of cantilever frames. The sides and tops of the cantilever frames are fixedly connected by corresponding connecting rods and X-shaped components, and the sides and tops of the two cantilever columns are fixedly connected by corresponding X-shaped components.

[0023] Advantages of this utility model:

[0024] 1) This utility model effectively improves the connection stability between the hook and the chain drive frame by adding an anti-rotation mechanism to limit the left and right deflection of the hook. Furthermore, the anti-rotation mechanism can be installed in a relatively small space. A corresponding locking component is rotatably installed at the vertical bend of the hook via a hinge seat. The front end of the locking component has a corresponding groove. After the locking component rotates to its position, its groove engages with the end of the hook to form a fixed connection. The two sides of the locking component are integrally formed and bent inward to form side plates, which are positioned between two annular protrusions to provide anti-rotation. However, due to the limited placement of the anti-rotation mechanism, the locking component is a thin plate structure, which limits its strength. Therefore, an n-shaped component with both ends fixed to the side plates is further fitted at the rear end of the hook. The bottom of the n-shaped component is locked to the bottom of the hook's outer side. Combined with the shape of the hook, this enhances the strength of the locking component, achieving an effective anti-rotation effect and improving the connection stability between the hook and the chain drive frame.

[0025] 2) This utility model adds a connecting mechanism between the two uprights of the chain drive structure. The connecting mechanism includes at least two rollers symmetrically arranged on the outside of the chain ring. By limiting the maximum opening angle of the chain ring through the rollers, when facing workpieces with large tilting and repositioning shapes, such as chassis housings, it can effectively ensure the number of meshing teeth between the chain ring and the gears, and ensure the rotational stability of the chain ring.

[0026] 3) This utility model uses two sets of pulleys and brackets to move the electric hoist left and right to adapt to workpieces of different lengths. It also adds a corresponding limiting mechanism to limit the lateral movement and protect the pulleys and brackets. When the limiting rod connecting the pulleys moves to the bend of the J-shaped limiting part, the drive motor stops running, thereby ensuring the practical effect of this utility model. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the installation of the electric hoist and the limit mechanism.

[0029] Figure 3 This is a schematic diagram of the installation of the chain-driven architecture and anti-rotation mechanism.

[0030] Figure 4 A schematic diagram of the chain-driven architecture after removing one vertical plate.

[0031] In the attached diagram: Structural component 1, base plate 101, cantilever frame 102, electric hoist 2, chain drive structure 3, upright plate 301, connecting rod 302, annular flange 303, chain drive mechanism 4, gear 401, motor 402, chain ring 5, anti-rotation mechanism 6, hinge seat 601, locking component 602, groove 6021, side plate 6022, n-shaped component 603, connecting pipe 604, hook 7, L-shaped plate 8, counterweight block 9, support wheel 10, bracket 11, pulley plate 12, limiting mechanism 13, L-shaped upright 1301, grooved rod 1302, J-shaped limiting component 1303, limiting rod 1304, X-shaped component 14. Detailed Implementation

[0032] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0033] Example 1

[0034] refer to Figure 1-4 A cantilever chain positioner, comprising:

[0035] Structural component 1 includes a cantilever frame 102 that is vertically and fixedly supported and installed on a base plate 101. The cantilever frame 102 is composed of two cantilever columns arranged in an inverted L-shape connected together.

[0036] Electric hoist 2 is installed at the top front end of the cantilever frame 102 and is used to drive the chain drive frame 3 to move up and down.

[0037] The chain-driven structure 3 includes two vertical plates 301 fixedly connected at left and right intervals, and corresponding connecting rods 302 are horizontally fixedly installed on the top of the two vertical plates 301. Corresponding annular protrusions 303 are provided at intervals on the connecting rods 302. A set of steel wire ropes connected to the electric hoist 2 slides downward and passes through corresponding pulleys 12. Corresponding hooks 7 are rotatably installed between the two pulleys 12. The hooks 7 hook the connecting rods 302 located between the two annular protrusions 303.

[0038] The chain drive mechanism 4 includes a gear 401 rotatably mounted between the two upright plates 301, and an electric motor 402 for driving the gear 401 to rotate is provided on the outer side of either of the upright plates 301.

[0039] Chain ring 5, which meshes with gear 401 and extends downward to accommodate the displaced workpiece;

[0040] The anti-rotation mechanism 6 includes a hinge seat 601 fixed at the vertical bend of the hook 7. A locking member 602 with an n-shaped cross-section is rotatably mounted on the hinge seat 601. The bottom of the locking member 602 is provided with a groove 6021 that matches the end of the hook 7. After the hook 7 is connected to the connecting rod 302, the locking member 602 rotates until its groove 6021 engages with the end of the hook 7. Both sides of the locking member 602 are integrally formed and bent to form side plates 6022 between the two annular protrusions. After the locking member 602 is rotated into position, a corresponding n-shaped member 603 is fixedly connected between the hook 7 and the locking member 602 above the connecting rod 302. The bottom of the n-shaped member 603 is engaged with the outer bottom of the hook 7, and its two ends are respectively fixedly connected to the two side plates 6022 of the locking member 602.

[0041] This utility model adds an anti-rotation mechanism 6 to limit the left and right deflection of the hook 7, thereby effectively improving the connection stability between the hook 7 and the chain drive frame, and the anti-rotation mechanism 6 can be installed in a small space. A corresponding locking component 602 is rotatably installed at the vertical bend of the hook 7 via the hinge seat 601. The front end of the locking component 602 is provided with a corresponding groove 6021. After the locking component 602 is rotated into place, its groove 6021 is engaged with the end of the hook 7 to form a fixation. The two sides of the locking component 602 are integrally formed and bent inward to form a side plate 6022. The side plate 6022 is set between two annular protrusions 303 to form an anti-rotation function. However, due to the limitation of the anti-rotation mechanism 6, the locking component 602 is a thin plate structure, which limits its strength. Therefore, an n-shaped component 603 with both ends fixed to the side plate 6022 is further sleeved at the rear end of the hook 7. The bottom of the n-shaped component 603 is locked at the bottom of the outer side of the hook 7. Combined with the shape of the hook 7, the strength of the locking component 602 is enhanced, achieving an effective anti-rotation effect and improving the connection stability between the hook 7 and the bar drive frame.

[0042] The end portion of the n-shaped component 603 is fixedly connected to the two side plates 6022 of the locking component 602 by welding.

[0043] The bottom of the two side plates 6022 of the locking member 602 is set as an arc surface. After the hook 7 is connected to the connecting rod 302 and the locking member 602 is rotated into place, the side plates 6022 of the locking member 602 are respectively attached to the inner sidewalls of the annular protrusions 303 on both sides.

[0044] An L-shaped plate 8 is fixedly installed on the inner side of the upright plate 301 above the connecting rod 302 by bolt locking. Both L-shaped plates 8 extend upward and are fixedly connected to each other by bolt locking at their tops.

[0045] On the outer side of the other upright plate 301 without the motor 402 installed, a counterweight 9 for adjusting balance can be added or removed. Corresponding sleeve rods are horizontally fixed to the four ends of the upright plate 301, and the counterweight 9 is fitted through the sleeve rods and locked in place by corresponding nuts 605. The counterweight 9 is used to adjust the balance of the chain drive structure 3, thereby ensuring stability during tilting and repositioning.

[0046] The chain positioner also includes a connecting mechanism for ensuring the number of meshing teeth between the chain ring 5 and the gear 401. The connecting mechanism includes at least two rollers 10 rotatably mounted between the two upright plates 301. The two rollers 10 are symmetrically arranged on the outside of the chain ring 5 and on both sides of the lower end of the gear 401.

[0047] This utility model adds a connecting mechanism between the two upright plates 301 of the chain drive structure 3. The connecting mechanism includes at least two guide wheels 10 symmetrically arranged on the outside of the chain ring 5. The guide wheels 10 limit the maximum opening angle of the chain ring 5. When facing a workpiece with a large tilting and repositioning shape, such as a chassis box, it can effectively ensure the number of meshing teeth between the chain ring 5 and the gear 401, and ensure the rotational stability of the chain ring 5.

[0048] The front end of the cantilever 102 is equipped with a corresponding bracket 11. The electric hoist 2 is slidably installed at the front end of the cantilever 102 by the cooperation of the left and right sets of pulleys and the bracket 11. Any set of pulleys is connected to a drive motor.

[0049] This utility model uses two sets of pulleys and brackets 11 to move the electric hoist 2 left and right to accommodate workpieces of different lengths. A corresponding limiting mechanism 13 is added to limit the lateral movement and protect the pulleys and brackets 11. When the limiting rod connecting the pulleys moves to the bend of the J-shaped limiting member 1303, the drive motor stops running, thus ensuring the practical effect of this utility model.

[0050] The chain positioner also includes a limiting mechanism 13 for controlling the outward movement distance of the electric hoist 2. The limiting mechanism 13 includes a set of L-shaped uprights 1301 fixedly installed at the front end of the cantilever frame 102 and located behind the support 11. J-shaped limiting members 1303 are installed between the L-shaped uprights 1301 through corresponding grooved rods 1302. The pulleys not connected to the drive motor are connected to corresponding limiting rods 1304, and the limiting rods 1304 extend to the J-shaped limiting members 1303.

[0051] The structural component 1 includes two sets of cantilever frames 102. The sides and tops of the cantilever frames 102 are fixedly connected by corresponding connecting rods 302 and X-shaped parts 14, respectively. The sides and tops of the two cantilever columns are fixedly connected by corresponding X-shaped parts 14, so as to improve the support and stability of the chain positioner.

[0052] Example 2

[0053] refer to Figure 4 The difference between this embodiment and Embodiment 1 is that: the outer sides of the two side plates 6022 of the locking member 602 are inclinedly welded and fixedly installed with corresponding connecting pipes 604, and the end of the n-shaped member 603 is provided with an external thread that matches the nut 605; when the n-shaped member 603 is installed in place, the end of the n-shaped member 603 is respectively inserted into the corresponding connecting pipe 604, and is tightened and fixed by the matching nut 605.

[0054] It should be noted that this embodiment is implemented in the same way as embodiment one in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in embodiment one.

[0055] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cantilever chain positioner characterized by, Include: Structural member (1), containing upright fixed support mounted on the floor (101) cantilever frame (102), the cantilever frame (102) is composed of two inverted L-shaped arrangement of cantilever column connection; Electric hoist (2), installed at the top of the cantilever frame (102) front end, for driving chain drive architecture (3) up and down; Chain drive architecture (3), containing two left and right interval fixed connection of vertical plate (301), and the top of the two vertical plate (301) is transversely fixed installation has corresponding connecting rod (302), the connecting rod (302) is arranged on the corresponding ring-shaped convex edge (303), the electric hoist (2) is connected with a group of steel wire rope is downward sliding through the corresponding pulley disc (12), two pulley disc (12) between the rotating installation has corresponding hook (7), the hook (7) hook connection between the two ring-shaped convex edge (303) connecting rod (302); Chain drive mechanism (4), containing gear (401) rotatingly installed between two vertical plate (301), the outer side of any one vertical plate (301) is provided with a motor (402) for driving the gear (401) rotation; Chain ring (5), the chain ring (5) is engaged with the gear (401), and it extends downward for the workpiece to be displaced; Anti rotation mechanism (6), containing hinge seat (601) fixed in the vertical bending of the hook (7), the hinge seat (601) is rotatably installed with the n-shaped cross section of the clamping part (602), the bottom of the clamping part (602) is provided with a groove (6021) matched with the end of the hook (7); after the hook (7) is connected with the connecting rod (302), the clamping part (602) is rotated to the groove (6021) and the end of the hook (7) are clamped with each other, and the two sides of the clamping part (602) are integrally formed and bent to form the side plate (6022) arranged between the two ring-shaped convex edges; after the clamping part (602) is rotated in place, the n-shaped part (603) is fixedly connected above the connecting rod (302) between the hook (7) and the clamping part (602), the bottom of the n-shaped part (603) is clamped on the outside bottom of the hook (7), and the two ends thereof are respectively fixedly connected with the two side plates (6022) of the clamping part (602).

2. A cantilever chain positioner according to claim 1, characterised in that, The end of the n-shaped part (603) is fixedly connected with the two side plates (6022) of the clamping part (602) by welding.

3. A cantilever chain positioner according to claim 1, wherein, The outer side of the two side plates (6022) of the clamping part (602) is obliquely welded and fixedly installed with a corresponding adapter pipe (604), and the end of the n-shaped part (603) is provided with an outer thread matched with a nut (605); when the n-shaped part (603) is installed in place, the end of the n-shaped part (603) is respectively inserted into the corresponding adapter pipe (604), and is fixed by the matched nut (605).

4. A cantilever chain positioner according to claim 1, wherein, The bottom of the two side plates (6022) of the clamping piece (602) is provided in a circular arc shape, the hook (7) is connected with the connecting rod (302), and after the clamping piece (602) is rotated to the position, the side plates (6022) of the clamping piece (602) are respectively attached to the inner side walls of the two annular convex edges (303).

5. A cantilever chain positioner according to claim 1 wherein, The inner side of the vertical plate (301) is fixedly installed with an L-shaped plate (8) above the connecting rod (302) by bolt locking, and the two L-shaped plates (8) extend upward and are fixedly connected at the top by bolt locking.

6. A cantilever chain positioner according to claim 1 wherein, The outer side of the other vertical plate (301) without the motor (402) is provided with a counterweight (9) for adjusting balance, and the four ends of the vertical plate (301) are transversely fixedly connected with corresponding sleeve rods, and the counterweight (9) is sleeved on the sleeve rods and locked and fixed by corresponding nuts (605).

7. A cantilever chain positioner according to claim 1 wherein, The chain shifting machine further comprises a linking mechanism for ensuring the number of meshing teeth between the chain ring (5) and the gear (401), and the linking mechanism comprises at least two supporting wheels (10) rotatably installed between the two vertical plates (301), and the two supporting wheels (10) are symmetrically arranged outside the chain ring (5) and located on both sides of the lower end of the gear (401).

8. A cantilever chain positioner according to claim 1 wherein, The front end of the cantilever frame (102) is provided with a corresponding support (11), and the electric hoist (2) is slidably installed at the front end of the cantilever frame (102) by cooperation of the left and right groups of pulleys and the support (11), and any one group of pulleys is connected with a driving motor.

9. A cantilever chain positioner according to claim 8, wherein, The chain shifting machine further comprises a limiting mechanism (13) for controlling the outward moving distance of the electric hoist (2), and the limiting mechanism (13) comprises a group of L-shaped vertical rods (1301) fixedly installed at the front end of the cantilever frame (102) and located at the rear side of the support (11), and the L-shaped vertical rods (1301) are installed with J-shaped limiting pieces (1303) through corresponding slot rods (1302), and the pulleys not connected with the driving motor are connected with corresponding limiting rods (1304), and the limiting rods (1304) extend to the J-shaped limiting pieces (1303).

10. A cantilever chain positioner according to claim 1 wherein, The structural member (1) comprises two groups of cantilever frames (102), and the sides and tops of the cantilever frames (102) are fixedly connected by corresponding connecting rods (302) and X-shaped members (14), respectively, and the sides and tops of the two cantilever columns are fixedly connected by corresponding X-shaped members (14).

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