Pipelined glove clamping device

Abstract

The application discloses a pipeline glove clamping device for realizing glove clamping on a pipeline, which comprises a first clamping block and a second clamping block connected in rotation, a locking mechanism for controlling the relative movement of the first clamping block and the second clamping block, the second clamping block is provided with a plurality of gravity ratchets, the first clamping block is provided with a plurality of clamping grooves corresponding to the gravity ratchets, the gravity ratchet comprises at least a rotating part and a tooth-shaped part, the rotating part is connected with the second clamping block in rotation, and the cooperation state of the tooth-shaped part and the clamping groove is controlled. The application has the beneficial effects that the rotating part of the gravity ratchet rotates with the change of the gravity of the glove, thereby changing the cooperation state of the tooth-shaped part and the clamping groove, so that when the gravity of the glove is small, the tooth-shaped part does not clamp into the clamping groove, but only abuts against the side surface of the first clamping block, thereby realizing the clamping of the light glove, and when the gravity of the glove increases, the rotating part rotates to drive the tooth-shaped part to rotate and clamp into the clamping groove, thereby increasing the clamping force on the glove and ensuring the stable clamping of the glove.

Description

Technical Field

[0001] This application relates to the field of assembly line clamping, and more particularly to assembly line glove clamping devices. Background Technology

[0002] Currently, insulating gloves are protective equipment to prevent operators from electric shock. Insulating gloves generally need to undergo withstand voltage tests regularly, and can only be used after passing the test to ensure personal safety. When rubber gloves are tested for withstand voltage, the handpiece often needs to be transported to different platforms for subsequent withstand voltage testing. At present, a considerable number of manufacturers use manual clamping methods to grab and transport them to different platforms. The existing manual clamping method has the problems of inconvenience for testing personnel to perform withstand voltage testing on gloves and poor clamping effect of manual operation.

[0003] Chinese patent "A Sewing Machine Shell Clamping Device", publication number: CN209777643U, publication date: December 13, 2019, specifically discloses a device including a support shaft located next to a heating furnace, a support platform rotatably mounted on the support shaft, a support plate mounted on the support platform, a first clamping plate fixedly mounted on the support plate, a second clamping plate mounted on the support plate via a first rotating shaft, a ratchet mounted on the first rotating shaft, a second rotating shaft located inside the support plate, a pawl mounted on the second rotating shaft that engages with the ratchet, and a driving component mounted on the second rotating shaft to drive its rotation. This solution achieves clamping through the ratchet and pawl engagement, but it is only suitable when the weight of the clamped object does not change. However, when performing pressure resistance testing on rubber gloves, water needs to be injected into the inside of the rubber gloves. If the clamping force is still in its initial state at this time, unstable clamping is highly likely to occur.

[0004] Chinese patent "A Test Device for Tensile Strength of Rubber Gloves", publication number: CN207181163U, publication date: April 3, 2018, discloses a sample tensile unit comprising a fixed clamping component, a movable clamping component, and a column. The column is vertically positioned on the worktable, and a slide rail is vertically mounted on the front side of the column. The fixed clamping component is located at the upper end of the slide rail. The movable clamping component is mounted on the slide rail. The clamping openings of the movable and fixed clamping components are opposite to each other. A driving device can drive the movable clamping component to move up and down along the slide rail. This solution adjusts the clamping force of the glove by manually tightening it, which obviously cannot adjust the clamping force according to changes in the weight of the glove. In assembly line testing, gloves of different specifications may be tested on the same line, requiring a clamping device that can automatically adjust the clamping force according to the weight of the glove. Summary of the Invention

[0005] The purpose of this application is to solve the problem in the prior art where the clamping device cannot increase friction with changes in the weight of the clamped object, resulting in unstable clamping when the weight of the clamped object increases.

[0006] To achieve the above-mentioned technical objectives, this application provides a technical solution: a glove clamping device for assembly lines, used to clamp gloves on an assembly line, comprising at least a first clamping block and a second clamping block rotatably connected, and a locking mechanism for controlling the relative movement of the first clamping block and the second clamping block. The second clamping block is provided with a plurality of gravity ratchet teeth, and the first clamping block is provided with a plurality of slots corresponding to the gravity ratchet teeth. The gravity ratchet teeth include at least a rotating part and a toothed part. The rotating part is rotatably connected to the second clamping block, and the engagement state of the toothed part and the slot is controlled.

[0007] Furthermore, it also includes a fixing plate, to which the first clamping block is connected.

[0008] Furthermore, the locking mechanism includes a pawl, a ratchet, and a lever. The ratchet is located at the connection end between the second clamping block and the first clamping block. The pawl is fixedly connected to the lever, and the lever is located on the first clamping block to control the engagement state of the pawl and the ratchet.

[0009] Furthermore, the first clamping block is fixedly connected to the fixed plate, the second clamping block is rotatably connected to the fixed plate, and the ratchet is fastened to the second clamping block through a cylindrical pin.

[0010] Furthermore, the first clamping block is provided with a square groove, and the swing arm is disposed in the square groove.

[0011] Furthermore, the toothed portion of the gravity ratchet and the first clamping block have: a first contact state in which at least part of the toothed portion abuts against the side of the first clamping block near the second clamping block, and a second contact state in which at least part of the toothed portion abuts against the slot.

[0012] Furthermore, the first clamping block is provided with several downwardly inclined slots, and the gravity ratchet and the slots are staggered in the vertical direction.

[0013] Furthermore, the gravity ratchet also includes a torsion spring, which is disposed at the connection end between the rotating part and the second clamping block.

[0014] Furthermore, the second clamping block is also equipped with a gravity sensor for acquiring the glove's weight data and a controller for controlling the movement of the rotating part, the controller being connected to the rotating part.

[0015] Furthermore, the rotating part and the toothed part are connected by a push rod, and the controller is connected to the push rod and the rotating part.

[0016] The beneficial effects of this application are as follows: the rotating part of the gravity ratchet rotates with the change of the glove's weight, thereby changing the engagement state between the toothed part and the slot. When the glove's weight is small, the toothed part does not engage in the slot, but only abuts against the side of the first clamping block, achieving a lighter glove clamping. When the glove's weight increases, the rotating part rotates, causing the toothed part to rotate and engage in the slot, thereby increasing the clamping force on the glove and ensuring stable glove clamping. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of a production line glove clamping device in one embodiment of this application.

[0018] Figure 2 This is a top view of the structure of the assembly line glove clamping device in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the structure of the assembly line glove clamping device in another embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the initial clamping state of the assembly line glove clamping device in another embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the slot of the assembly line glove clamping device in another embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the initial clamping state of the assembly line glove clamping device in another embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the gravity ratchet structure in one embodiment of this application.

[0024] Explanation of markings in the diagram: 1. Ratchet; 2. Rocker arm; 3. Pawl; 4. First clamping block; 5. Second clamping block; 6. Fixing plate; 7. Gravity ratchet; 8. Slot; a. Toothed part; b. Rotating part; c. Push rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description of this application is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely one preferred embodiment of this application and are only used to explain this application. They do not limit the scope of protection of this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown in the first embodiment of this application, the assembly line glove clamping device includes at least a first clamping block 4 and a second clamping block 5 rotatably connected, and a locking mechanism for controlling the relative movement of the first clamping block 4 and the second clamping block 5. The second clamping block 5 is provided with a plurality of gravity ratchet teeth 7, and the first clamping block 4 is provided with a plurality of slots 8 corresponding to the gravity ratchet teeth 7. The gravity ratchet teeth 7 include at least a rotating part b and a toothed part a. The rotating part b is rotatably connected to the second clamping block 5, controlling the engagement state of the toothed part a and the slot 8. The rotating part b is movably connected to the second clamping block 5 by means of a pin, i.e., the pin is fixed to the second clamping block 5. The rotating part b is provided with a hole that engages with the pin. The hole and the pin are in transition fit to achieve friction between the rotating part b and the pin that allows the rotating part b to remain stationary during initial clamping. When the weight of the glove increases, the friction in the transition fit is less than the rotational force given to the rotating part b by the glove, and the rotating part b rotates. Similarly, in other embodiments, the rotating part b and the second clamping block 5 can also be connected by threads, that is, the screw is set on the second clamping block 5, and the rotating part b is provided with a threaded hole that is threaded to the screw. During initial clamping, due to the damping of the threaded engagement, it can be ensured that the rotating part b remains stationary. When the weight of the glove increases, the rotational force exerted by the glove on the rotating part b is greater than the damping of the threaded engagement, and the rotating part b rotates. It can be understood that at this time, there is at least some space for relative movement between the rotating part b and the second clamping block 5, so that the rotating part b can rotate along the screw to move closer to or away from the second clamping block 5. When the glove is initially clamped, the locking mechanism is in an unlocked state, and the first clamping block 4 and the second clamping block 5 can move relative to each other. After the initial clamping of the glove is completed, the locking mechanism locks, and the first clamping block 4 and the second clamping block 5 cannot move relative to each other, ensuring stable clamping of the glove. When the glove is not filled with water, the toothed part a abuts against the side of the first clamping block 4 near the second clamping block 5 to achieve stable clamping of the glove. When the glove is filled with water, driven by the weight of the glove, the rotating part b of the gravity ratchet 7 rotates, which drives the toothed part a to rotate and engage in the slot 8, increasing the friction between the glove and the first clamping block 4 and the gravity ratchet 7, ensuring stable clamping of the glove. This makes the clamping force increase with the weight of the glove, avoiding excessive clamping force applied to the glove and causing wear.

[0029] Specifically, the assembly line glove clamping device also includes a fixed plate 6. The assembly line glove clamping device is connected to the assembly line device through the fixed plate 6. The first clamping block 4 is connected to the fixed plate 6. When the locking mechanism is not locked, the second clamping block 5 moves relative to the first clamping block 4. In some embodiments, the fixed plate 6 is slidably connected to the assembly line device, such as by a sliding connection with the slot 8. In other embodiments, the fixed plate 6 is fixedly connected to the conveyor belt of the assembly line device, and the assembly line glove clamping device moves on the assembly line device through the conveyor belt. The way the fixed plate 6 cooperates with the assembly line device is not limited to a fixed connection or a sliding connection, as long as the assembly line glove clamping device can move on the assembly line device. Similarly, the connection between the first clamping block 4 and the fixed plate 6 can be a fixed connection. In this case, the first clamping block 4 does not move during the clamping process, but the second clamping block 5 moves relative to the first clamping block 4 to achieve clamping. In other embodiments, the connection between the first clamping block 4 and the fixed plate 6 can also be a rotatable connection, so that both the first clamping block 4 and the second clamping block 5 can move relative to the fixed plate 6. Due to the influence of gravity, even if both the first clamping block 4 and the second clamping block 5 can move relative to the fixed plate 6, when the moving speed of the glove clamping device on the assembly line is slow, the first clamping block 4 and the second clamping block 5 will not shake when clamping the glove, which can meet the stability requirements of the assembly line for glove clamping. It is understood that in some embodiments, the second clamping block 5 can also be connected to the fixed plate 6.

[0030] In the second embodiment of this application, the locking mechanism includes a pawl 3, a ratchet 1, and a lever 2. The ratchet 1 is located at the connection end between the second clamping block 5 and the first clamping block 4. The pawl 3 is fixedly connected to the lever 2, which is located on the first clamping block 4 to control the engagement state of the pawl 3 and the ratchet 1. When the glove is clamped, the lever 2 controls the pawl 3 to move away from the ratchet 1. At this time, the locking mechanism is in an unlocked state, the ratchet 1 can rotate, and the second clamping block 5 and the first clamping block 4 can move relative to each other. After clamping is completed, the lever 2 controls the pawl 3 to fall onto the teeth of the ratchet 1, and the ratchet 1 can no longer rotate. At this time, the locking mechanism is in a locked state, and the second clamping block 5 and the first clamping block 4 cannot move relative to each other, ensuring stable clamping of the glove.

[0031] In this embodiment, the first clamping block 4 is fixedly connected to the fixed plate 6, and the second clamping block 5 is rotatably connected to the fixed plate 6. The ratchet 1 is fastened to the second clamping block 5 by a cylindrical pin. When the ratchet 1 is locked, the second clamping block 5 cannot move relative to the first clamping block 4. In the vertical direction, the first clamping block 4 is at least partially located above the ratchet 1. The rocker arm 2 is located on the portion of the first clamping block 4 located above the ratchet 1. The center point of the rocker arm 2 and the center point of the ratchet 1 are in the same vertical direction. The pawl 3 is located on the side of the rocker arm 2 closer to the ratchet 1, so that when the rocker arm 2 swings up and down, the engagement state of the pawl 3 and the ratchet 1 can be controlled. In some embodiments, the rocker arm 2 is rotatably connected to the first clamping block 4. The rocker arm 2 rotates with its connection point to the first clamping block 4 as the center point, such that when the side of the rocker arm 2 away from the pawl 3 moves downward, the side of the rocker arm 2 near the pawl 3 moves upward, causing the pawl 3 to disengage from the ratchet 1. Conversely, when the side of the rocker arm 2 away from the pawl 3 moves upward, the side of the rocker arm 2 near the pawl 3 moves downward, and the pawl 3 engages with the ratchet 1 to achieve locking. Figure 5 As shown, the first clamping block 4 is provided with a square groove, and the rocker arm 2 is set in the square groove and slides in cooperation with the first clamping block 4. By controlling the rocker arm 2 to move in the square groove, the rocker arm 2 as a whole can be moved up or down. In the figure, moving up means moving from the solid line position to the dashed line position, thereby realizing the change of the engagement state of the pawl 3 and the ratchet 1.

[0032] In Embodiment 3 of this application, the toothed portion a of the gravity ratchet 7 and the first clamping block 4 are in a first contact state where at least part of the toothed portion a abuts against the side of the first clamping block 4 near the second clamping block 5, and a second contact state where at least part of the toothed portion abuts against the slot 8. When the rotating part b rotates under the action of gravity, the contact state between the toothed portion a and the first clamping block 4 changes from the first contact state to the second contact state.

[0033] In this embodiment, the toothed part a is a pointed corner that partially protrudes from the rotating part b. The opening size of the slot 8 is at least smaller than the height of the rotating part b in the vertical direction, and the width of the toothed part a is at least smaller than the height of the rotating part b in the vertical direction. This ensures that the pointed corner of the toothed part a can be inserted into the slot 8 after rotation, while the rotating part b cannot be inserted into the slot 8 when no rotation occurs, thus realizing the transition between the two contact states.

[0034] In other embodiments, the toothed part a can also be triangular in shape. That is, when the planar projection shape of the toothed part a is triangular, the size of the opening of the slot 8 is at least smaller than the hypotenuse of the triangle and larger than the adjacent side of the triangle. The side of the toothed part a projected as the hypotenuse of the triangle abuts against the side of the first clamping block 4 near the second clamping block 5 in the first contact state, and in the second contact state, the side moves downward so that the sharp corner of the triangle can be smoothly inserted into the slot 8.

[0035] In some other embodiments, such as Figure 6As shown, the slot 8 is a downwardly inclined slot 8, and the gravity ratchet 7 is staggered with the slot 8 in the vertical direction. When in the first contact state, the toothed part a completely abuts against the side of the first clamping block 4 near the second clamping block 5. When in the second contact state, the rotating part b rotates, and the toothed part a tilts downward and inserts into the slot 8.

[0036] In the fourth embodiment of this application, the gravity ratchet 7 also includes a torsion spring. The torsion spring is disposed at the connection end between the rotating part b and the second clamping block 5. When the rotating part b is flipped downward under the action of gravity, the torsion spring applies torque to the gravity ratchet 7, thereby increasing the pressure of the toothed part a on the glove and increasing the friction between the glove, the toothed part a, and the first clamping block 4. When the glove is removed, the rotating part b is reset by the action of the torsion spring, thereby achieving the effect of increasing friction as the weight of the glove increases to ensure stable clamping.

[0037] As a fifth embodiment of this application, the second clamping block 5 is also provided with a gravity sensor and a controller. The controller is connected to the rotating part b. The gravity sensor acquires the glove's gravity data in real time and outputs it to the controller. The controller controls the rotation angle of the rotating part b according to the gravity data transmitted by the gravity sensor, thereby ensuring the glove is clamped stably.

[0038] In other embodiments, such as Figure 7 As shown, the rotating part b and the toothed part a are connected by a push rod c, which is a telescopic rod. The controller is connected to the push rod c and the rotating part b. The controller controls the rotation angle of the rotating part b and the extension and extension of the push rod c and the pushing force according to the gravity data transmitted by the gravity sensor, thereby realizing the engagement of the gravity ratchet with the slot 8 and the pressure change, and further controlling the friction between the glove and the clamping device.

[0039] The above-described specific embodiments are preferred embodiments of the production line glove clamping device of this application, and are not intended to limit the specific scope of this application. The scope of this application includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with the shape and structure of this application are within the protection scope of this application.

Claims

1. A glove clamping device for assembly lines, used to clamp gloves on an assembly line, characterized in that: It includes at least a first clamping block and a second clamping block that are rotatably connected, and a locking mechanism for controlling the relative movement of the first clamping block and the second clamping block. The second clamping block is provided with a plurality of gravity ratchet teeth, and the first clamping block is provided with a plurality of slots corresponding to the gravity ratchet teeth. The gravity ratchet teeth include at least a rotating part and a toothed part. The rotating part is rotatably connected to the second clamping block and controls the engagement state of the toothed part and the slot.

2. The assembly line glove clamping device as described in claim 1, characterized in that: It also includes a fixing plate, to which the first clamping block is connected.

3. The assembly line glove clamping device as described in claim 2, characterized in that: The locking mechanism includes a pawl, a ratchet, and a rocker arm. The ratchet is located at the connection end between the second clamping block and the first clamping block. The pawl is fixedly connected to the rocker arm, and the rocker arm is located on the first clamping block to control the engagement state of the pawl and the ratchet.

4. The assembly line glove clamping device as described in claim 3, characterized in that: The first clamping block is fixedly connected to the fixed plate, the second clamping block is rotatably connected to the fixed plate, and the ratchet is fastened to the second clamping block by a cylindrical pin.

5. The assembly line glove clamping device as described in claim 3, characterized in that: The first clamping block is provided with a square groove, and the swing rod is disposed in the square groove.

6. The assembly line glove clamping device as described in claim 1, characterized in that: The toothed portion of the gravity ratchet has the following contact states with the first clamping block: a first contact state in which at least part of the toothed portion abuts against the side of the first clamping block near the second clamping block, and a second contact state in which at least part of the toothed portion abuts against the slot.

7. The assembly line glove clamping device as described in claim 1, characterized in that: The first clamping block is provided with a plurality of downwardly inclined slots, and the gravity ratchet is staggered with the slots in the vertical direction.

8. The assembly line glove clamping device as described in claim 1, characterized in that: The gravity ratchet also includes a torsion spring, which is disposed at the connection end between the rotating part and the second clamping block.

9. The assembly line glove clamping device as described in claim 1, characterized in that: The second clamping block is also equipped with a gravity sensor for acquiring the glove's weight data and a controller for controlling the movement of the rotating part, the controller being connected to the rotating part.

10. The assembly line glove clamping device as described in claim 9, characterized in that: The rotating part and the toothed part are connected by a push rod, and the controller is connected to the push rod and the rotating part.

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