Automatic candle grabbing mechanism

Abstract

The utility model relates to the automatic candle grabbing mechanism of grabbing mechanism field, including fixed frame, drive component and a plurality of sets of clamping claw, fixed frame includes lower bottom plate and upper fixed plate, and the lower bottom plate and upper fixed plate are fixedly connected through the support column between, and the lower bottom plate is provided with a plurality of positioning hole, and drive component includes lifting plate, driver and a plurality of extruding blocks, and the lifting plate is parallelly arranged between lower bottom plate and upper fixed plate, and the extruding block is installed in the one end of lifting plate close to lower bottom plate, and the one end of extruding block away from lifting plate is provided with extruding slope, and passes through the inside of clamping claw and contacts with positioning hole, and the driver is installed between lifting plate and upper fixed plate, and the driver drives lifting plate to go up and down between lower bottom plate and upper fixed plate, and the extruding block is used for driving clamping claw to open, and clamping is stable and reliable, and the normal state of clamping claw is closing state, and realizes release through the slope of extruding block and opens, and only needs to remove extrusion force when grabbing, and clamping claw is automatic reset to closing state.

Description

Technical Field

[0001] This utility model relates to the field of gripping mechanisms, and in particular to an automatic candle gripping mechanism. Background Technology

[0002] Chinese Patent Publication No. CN118723540A, entitled "A Mechanism for Gripping Oil and Wax Parts," includes a sliding mechanism and a fixing mechanism. The sliding mechanism consists of a gripping movable frame, a power source mechanism, a second connecting column, and a sliding plate. The fixing mechanism consists of a fixing frame, a first connecting column, and a pressing plate. The sliding mechanism and the fixing mechanism are slidably connected. The power source mechanism can drive the output shaft to extend and retract, causing the two to slide relative to each other. This, in turn, causes the gripping claws in the sliding plate to grip the oil and wax parts by compressing and contracting the elastic grippers. The gripping structure mainly achieves clamping by continuously applying external force.

[0003] In practical use, this method makes it difficult to ensure that the force of each gripper is consistent. The clamping state depends entirely on the external force continuously applied by the power source. Once the power is interrupted or fluctuates, the clamping force will disappear immediately, leading to the risk of the workpiece falling off. The clamping effect is unstable, the structure is complex, and multiple components such as sliding plates and connecting columns need to be linked together, resulting in high assembly and maintenance costs. The retraction range of the elastic gripper is limited by the stroke of the sliding block, making it unsuitable for irregularly shaped or large-sized products. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides an automatic candle gripping mechanism, which can effectively solve the technical problems of unstable gripping and complex structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The automatic candle gripping mechanism includes a fixed frame, a drive assembly, and several sets of gripping claws. The fixed frame includes a lower base plate and an upper fixed plate, which are fixedly connected by a support column. The lower base plate is provided with several evenly arranged positioning holes that penetrate the lower base plate. Each set of gripping claws is installed in each positioning hole, and the open end of the gripping claw extends through the positioning hole to the side of the lower base plate away from the upper fixed plate.

[0007] The drive assembly includes a lifting plate, a driver, and several pressing blocks. The lifting plate is arranged parallel between the lower base plate and the upper fixed plate. The pressing blocks are installed at the end of the lifting plate near the lower base plate. The end of the pressing blocks away from the lifting plate is provided with a pressing slope, which passes through the positioning hole and contacts the inner side of the clamping claw. The driver is installed between the lifting plate and the upper fixed plate. The driver drives the lifting plate to move up and down between the lower base plate and the upper fixed plate. The pressing blocks are used to drive the clamping claw to open.

[0008] Furthermore, the clamping claw is composed of three or more elastic clamping arms, which are evenly distributed around the axis of the positioning hole.

[0009] Furthermore, the elastic clamping arm includes a positioning part, a guiding part, an inward retraction part, and a gripping part. A positioning groove connected to the positioning hole is provided around the positioning hole. The positioning part is installed in the positioning groove. The guiding part passes through the positioning hole. The inward retraction part bends toward the axis of the positioning hole. The gripping part bends in the opposite direction to the inward retraction part.

[0010] Furthermore, the sidewall of the extrusion block is provided with a guide groove that slides in cooperation with the guide portion, and the guide groove extends to the extrusion slope.

[0011] Furthermore, a limiting hole is provided at the end of the positioning groove away from the positioning hole, the positioning part is bent and inserted into the limiting hole, and a positioning cover plate covering the positioning groove is installed on the bottom plate.

[0012] Furthermore, a sliding sleeve is installed in the lifting plate, and the sliding sleeve is sleeved with the support column. The lifting plate moves along the axial direction of the support column through the sliding sleeve.

[0013] Furthermore, a drive connection plate is installed at the rear of the fixed frame, and the drive connection plate is connected to the edge of the lower base plate through a horizontal support arm.

[0014] Compared with the prior art, the advantages of this utility model are: stable and reliable clamping; the clamping claw is normally in a closed state, and is released by the inclined surface of the squeezing block; when gripping, only the squeezing force needs to be released, and the clamping claw will automatically return to the closed state without continuous external force, avoiding the risk of objects falling off; a single-layer lifting plate drives the squeezing block, eliminating the complex components such as sliding mechanisms and connecting columns in the prior art; the clamping claw is directly embedded in the positioning hole of the bottom plate, reducing assembly levels and lowering the failure rate; the driver only operates when releasing, reducing energy consumption. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the lifting plate, lower base plate, clamping claws and extrusion block in this utility model;

[0019] Figure 5 This is a schematic diagram of the elastic clamping arm in this utility model;

[0020] Figure 6 This is a schematic diagram showing the connection between the present invention and the boxing mechanism;

[0021] The diagram is labeled as follows: 1-lower base plate, 101-positioning groove, 102-limiting hole, 2-upper fixing plate, 3-positioning hole, 4-support column, 5-positioning cover plate, 6-lifting plate, 7-cylinder, 8-extrusion block, 801-extrusion slope, 802-guide slide, 9-sliding sleeve, 10-clamping claw, 1001-elastic clamping arm, 1002-positioning part, 1003-guide part, 1004-retracting part, 1005-gripping part, 11-drive connecting plate, 12-horizontal support arm, 13-mechanical arm, 14-packaging box, 15-candle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The following is combined with Figures 1-6 The automatic candle gripping mechanism of this utility model is described in detail below:

[0024] The automatic candle gripping mechanism includes a fixed frame, a drive assembly, and several sets of gripping claws 10. The fixed frame includes a lower base plate 1 and an upper fixed plate 2, which are fixedly connected by a support column 4. The lower base plate 1 is provided with several evenly arranged positioning holes 3, which penetrate the lower base plate 1. Each set of gripping claws 10 is installed in each positioning hole 3, and the open end of the gripping claw 10 extends through the positioning hole 3 to the side of the lower base plate 1 away from the upper fixed plate 2.

[0025] The driving assembly includes a lifting plate 6, a driver, and several extrusion blocks 8. The driver is a cylinder 7. The lifting plate 6 is arranged parallel between the lower base plate 1 and the upper fixed plate 2. The extrusion blocks 8 are installed at the end of the lifting plate 6 near the lower base plate 1. The end of the extrusion block 8 away from the lifting plate 6 is provided with an extrusion inclined surface 801, which passes through the positioning hole 3 and contacts the inner side of the clamping claw 10. The cylinder 7 is installed between the lifting plate 6 and the upper fixed plate 2. The cylinder 7 drives the lifting plate 6 to rise and fall between the lower base plate 1 and the upper fixed plate 2. The extrusion blocks 8 are used to drive the clamping claw 10 to open. A sliding sleeve 9 is installed in the lifting plate 6. The sliding sleeve 9 is sleeved with the support column 4. The lifting plate 6 moves along the axial direction of the support column 4 through the sliding sleeve 9. The sliding sleeve 9 and the support column 4 eliminate radial shaking when the lifting plate 6 moves, ensuring that the extrusion blocks 8 rise and fall vertically and accurately, and avoiding the failure of the inclined surface drive.

[0026] The clamping mechanism is stable and reliable. The clamping claw 10 is normally in the closed state and is released by the inclined surface of the squeezing block 8. When gripping, only the squeezing pressure needs to be released, and the clamping claw 10 will automatically return to the closed state. No external force needs to be continuously applied in the closed state, avoiding the risk of the object falling off after the power is lost. The single-layer lifting plate 6 drives the squeezing block 8, eliminating the complex components such as sliding mechanism and connecting column in the existing technology. The clamping claw 10 is directly embedded into the positioning hole 3 of the lower base plate 1, reducing the assembly level and the failure rate. The driver only operates when releasing, reducing energy consumption.

[0027] The gripper 10 consists of four elastic gripping arms 1001. The elastic gripping arms 1001 are evenly distributed around the axis of the positioning hole 3 to form a multi-directional synchronous gripping force, which avoids deformation or damage to the candle 15 caused by uneven force. It is especially suitable for enveloping gripping of cylindrical candles 15.

[0028] The elastic clamping arm 1001 includes a positioning part 1002, a guide part 1003, an inward retraction part 1004, and a gripping part 1005. A positioning groove 101 connected to the positioning hole 3 is provided around the positioning hole 3. A limiting hole 102 is provided at the end of the positioning groove 101 away from the positioning hole 3. The positioning part 1002 is bent and inserted into the limiting hole 102. A positioning cover plate 5 covering the positioning groove 101 is installed on the lower base plate 1. The positioning part 1002 is installed in the positioning groove 101 and is pressed together with the positioning cover plate 5 to achieve double mechanical locking, completely preventing… The gripper 10 disengages, while also supporting quick disassembly and maintenance. The guide part 1003 passes through the positioning hole 3. The side wall of the extrusion block 8 is provided with a guide groove 802 that slides with the guide part 1003. The guide groove 802 extends to the extrusion slope 801. The guide part 1003 cooperates with the positioning hole 3 to ensure that the gripper moves vertically without deviation. The inward part 1004 bends toward the axis of the positioning hole 3, so that the gripper 10 is normally kept in a self-locking closed position. The gripping part 1005 bends in the opposite direction to the inward part 1004, which can grip larger candles 15.

[0029] A drive connection plate 11 is installed at the rear of the fixed frame. The drive connection plate 11 is connected to the edge of the lower base plate 1 via a horizontal support arm 12. The automatic candle gripping mechanism is connected to the mechanical arm 13 of the boxing mechanism via the drive connection plate 11, as shown in the figure. It is used to accurately transfer the candle 15 into the packaging box 14. The specific operation process is as follows:

[0030] In the initial stage, cylinder 7 is in a retracted state, lifting plate 6 is located below upper fixed plate 2, and the squeezing slope 801 of squeezing block 8 does not contact the inner retracted part 1004. At this time, the elastic gripping arms 1001 of clamping claw 10 remain closed under normal elastic force, and the distance between gripping parts 1005 is less than the diameter of candle 15. Cylinder 7 drives lifting plate 6 to press down, causing squeezing block 8 to move down to the inner retracted part 1004 and enter guide groove 802. Squeezing slope 801 pushes the inner retracted part 1004 to expand outward. External robotic arm 13 moves the mechanism to directly above the candle 15 station through drive connecting plate 11. In the gripping stage, the lowering mechanism of robotic arm 13 aligns clamping claw 10 with the top of candle 15, and candle 15 is inserted into the closing space of gripping part 1005. Cylinder 7 drives lifting plate 6 to reset, and clamping claw 10 clamps the side wall of candle 15 under its own elasticity. In the transfer stage, the lifting mechanism of robotic arm 13 moves candle 15 to the top of packaging box 14 for positioning. During the release phase, cylinder 7 pushes the lifting plate 6 downward, and candle 15 falls precisely into packaging box 14. During the reset phase, the driver retracts and drives the lifting plate 6 upward, the squeezing block 8 disengages from the clamping claw 10, and the elastic clamping arm 1001 instantly closes and resets. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic candle gripping mechanism, comprising a fixed frame, a drive assembly, and several sets of gripping claws, characterized in that: The fixed frame includes a lower base plate and an upper fixed plate. The lower base plate and the upper fixed plate are fixedly connected by support columns. The lower base plate is provided with a number of evenly arranged positioning holes. The positioning holes penetrate the lower base plate. Each set of clamping claws is installed in each positioning hole respectively. The open end of the clamping claws extends through the positioning hole to the side of the lower base plate away from the upper fixed plate. The drive assembly includes a lifting plate, a driver, and several pressing blocks. The lifting plate is arranged parallel between the lower base plate and the upper fixed plate. The pressing blocks are installed at the end of the lifting plate near the lower base plate. The end of the pressing blocks away from the lifting plate is provided with a pressing slope, which passes through the positioning hole and contacts the inner side of the clamping claw. The driver is installed between the lifting plate and the upper fixed plate. The driver drives the lifting plate to move up and down between the lower base plate and the upper fixed plate. The pressing blocks are used to drive the clamping claw to open.

2. The automatic candle gripping mechanism according to claim 1, characterized in that: The clamping claw consists of three or more elastic clamping arms, which are evenly distributed around the axis of the positioning hole.

3. The automatic candle gripping mechanism according to claim 2, characterized in that: The elastic clamping arm includes a positioning part, a guide part, an inward retraction part, and a gripping part. A positioning groove connected to the positioning hole is provided around the positioning hole. The positioning part is installed in the positioning groove. The guide part passes through the positioning hole. The inward retraction part bends toward the axis of the positioning hole. The gripping part bends in the opposite direction to the inward retraction part.

4. The automatic candle gripping mechanism according to claim 3, characterized in that: The side wall of the extrusion block is provided with a guide groove that slides in conjunction with the guide part, and the guide groove extends to the extrusion slope.

5. The automatic candle gripping mechanism according to claim 3, characterized in that: The positioning groove is provided with a limiting hole at the end away from the positioning hole. The positioning part is bent and inserted into the limiting hole. The bottom plate is equipped with a positioning cover plate that covers the positioning groove.

6. The automatic candle gripping mechanism according to any one of claims 1-5, characterized in that: The lifting plate is equipped with a sliding sleeve, which is sleeved with the support column. The lifting plate moves along the axis of the support column through the sliding sleeve.

7. The automatic candle gripping mechanism according to any one of claims 1-5, characterized in that: A drive connection plate is installed at the rear of the fixed frame, and the drive connection plate is connected to the edge of the lower base plate through a horizontal support arm.

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