Fixture quick-change fixing structure

Abstract

The utility model discloses a fixture quick-change fixing structure, which is characterized in that a bottom frame is fixedly connected with turntable equipment, a fixture frame is overlapped or separated at the upper part of the bottom frame to realize the change of different models of fixtures, and a plurality of heavy buffer mechanisms are arranged on the two sides of the bottom frame in the length direction; at least two sets of first lateral guide blocks and second lateral guide blocks are arranged on the side face of the bottom frame in the width direction and matched with the first lateral ball guide mechanism and the second lateral ball guide mechanism, and a plurality of low-friction heavy universal requirements are arranged at the joint of the surface of the bottom frame and the clamp frame. A plurality of X-direction positioning grooves and Z-direction positioning grooves are formed in one end of the bottom frame in the length direction and matched with or separated from the X-direction positioning blocks and the Z-direction positioning blocks, X-Y-direction positioning lock holes are formed in the tail end of the bottom frame, and X-Y-direction sliding positioning pins are arranged at the positions, corresponding to the X-Y-direction positioning lock holes, of the clamp frame. The technical problems that in the prior art, a clamp is not easy to align during replacement and the working efficiency is low due to a complex fixing structure are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical device technical field, especially relate to a quick change fixing structure of clamp. BACKGROUND

[0002] At present, in the automobile welding automation production line, a welding automation production line usually corresponds to multiple vehicle products, and different vehicle products usually correspond to different clamps and toolings, therefore, the rotary table and the like are usually selected in the automation production line to load multiple clamps to switch vehicle models, and the rotary table can at most only be compatible with four vehicle models, and at present, the automobile industry is far more than four vehicle models, therefore, more vehicle clamp switching needs to be stopped to disassemble and switch, and a reliable, high-precision, convenient and rapid clamp quick change fixing tooling can greatly reduce the production downtime, the required equipment, the process and the operator, most clamps weigh more than one ton, and when the forklift is forked, the position of the clamp is completely moved by the forklift, and it is difficult to align, and it consumes a lot of time and is easy to cause collision, property loss and safety accidents, the weight of the clamp is heavy and is used on the rotary table, a large number of bolts are needed to lock and tighten, and the process also consumes a lot of time and personnel, therefore, how to develop a quick change structure for quick replacement and fixation is a difficult problem that the technical personnel in the field have been thinking about. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a quick change fixing structure of clamp, and solves the technical problems of the above-mentioned prior art that the clamp is not easy to align during replacement and the complex fixing structure leads to low work efficiency.

[0004] The utility model adopts the technical scheme that:

[0005] A quick-change fixing structure for clamps is disclosed for quick replacement of clamp bases in a turntable device. The clamp base includes a bottom frame and a clamp frame that cooperate with each other. The bottom frame is fixedly connected to the turntable device. The clamp frame can be overlapped or separated on the upper part of the bottom frame to allow for the replacement of different types of clamps. Several heavy-duty buffer mechanisms are provided on both sides of the length direction of the bottom frame. At least two sets of first lateral guide blocks and second lateral guide blocks are provided on the side of the width direction of the bottom frame. The clamp frame has a first lateral ball guide mechanism and a second lateral ball guide mechanism at positions corresponding to the first and second lateral guide blocks, respectively. Several low-friction heavy-duty universal joints are provided at the junction of the bottom frame surface and the clamp frame. Several X-axis positioning grooves and Z-axis positioning grooves are provided at one end of the length direction of the bottom frame. X-axis positioning blocks and Z-axis positioning blocks that cooperate or separate from the X-axis and Z-axis positioning grooves are provided at positions corresponding to the X-axis and Z-axis positioning grooves, respectively. XY-axis positioning locking holes are provided at the end of the bottom frame. XY-axis sliding positioning pins are provided at positions corresponding to the XY-axis positioning locking holes of the clamp frame.

[0006] This utility model discloses a quick-change fixing structure for a clamp. The bottom frame is symmetrically provided with XZ guide mechanisms on both sides along its length. The XZ guide mechanisms on both sides are inclined upward to form a V-shaped structure. The clamp frame has XZ guide blocks that cooperate with the XZ guide mechanisms at the corresponding positions.

[0007] This utility model discloses a quick-change fixing structure for a clamp. On the bottom frame, there is a Z-direction quick clamp located on one side of the XY-direction positioning lock hole. The clamp frame and the Z-direction quick clamp each have a Z-direction tensioning claw at the corresponding positions. The Z-direction quick clamp and the Z-direction tensioning claw can be locked or separated.

[0008] The present invention provides a quick-change fixing structure for a clamp, wherein the Z-direction quick clamp has a Z-direction tensioning induction switch on one side for detecting whether it is locked.

[0009] The present invention provides a quick-change fixing structure for a clamp, wherein an XY-direction positioning induction switch is provided below the XY-direction positioning lock hole.

[0010] This utility model discloses a quick-change fixing structure for a clamp, wherein the bottom frame has a vehicle model recognition switch, and the clamp frame has an identification card at the position corresponding to the vehicle model recognition switch.

[0011] The present invention provides a quick-change fixing structure for a clamp, wherein the bottom frame has a limiting seat on the surface away from the turntable equipment.

[0012] The beneficial effects of this utility model are as follows: It proposes a quick-change fixing structure for the clamp, which reduces the impact caused by the clamp frame descending too quickly by using a heavy-duty buffer mechanism with its internal stacked springs; it achieves rough positioning through the cooperation of the XZ-direction guide mechanism and the XZ-direction guide block; it reduces the resistance of the clamp frame's planar pushing by using a low-friction heavy-duty universal joint, and provides rough guidance through the cooperation of the lateral guide block and the lateral ball guide mechanism on the inner side; it achieves precise positioning and limiting through the cooperation of the X and Z-direction positioning grooves with the corresponding positioning blocks; and it achieves rapid locking and separation of the two parts through quick clamps, improving assembly and disassembly efficiency; it can identify whether the assembly is in place by using a position sensing switch; and it can identify whether the clamp is the correct model by using a vehicle model recognition switch. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0014] Fig. 1 This is a schematic diagram of the bottom frame of an embodiment of the present invention;

[0015] Fig. 2 This is a schematic diagram of the clamp frame according to an embodiment of the present utility model;

[0016] Fig. 3 This is a schematic diagram illustrating an application example of an embodiment of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] like Figs. 1-3As shown, a quick-change fixing structure for clamps is used for quick replacement of clamp bases 200 in a turntable device 100. The clamp base 200 includes a bottom frame 110 and a clamp frame 210 that cooperate with each other. The bottom frame 110 is fixedly connected to the turntable device 100. The clamp frame 210 overlaps or separates on the top of the bottom frame 110 to allow for the replacement of different types of clamps. Several heavy-duty buffer mechanisms 1100 are provided on both sides of the bottom frame 110 along its length. At least two sets of first lateral guide blocks 150 and second lateral guide blocks 160 are provided on the sides of the bottom frame 110 along its width. The clamp frame 210 interacts with the first lateral guide blocks 150 and the second lateral guide blocks 160. The bottom frame 110 has a first lateral ball guide mechanism 250 and a second lateral ball guide mechanism 260 at corresponding positions. The bottom frame 110 has several low-friction heavy-duty universal joints 114 at the junction with the clamp frame 210. The bottom frame 110 has several X-axis positioning grooves 130 and Z-axis positioning grooves 120 at one end along its length. The clamp frame 210 has X-axis positioning blocks 230 and Z-axis positioning blocks 220 at positions corresponding to the X-axis positioning grooves 130 and Z-axis positioning grooves 120, respectively, which can cooperate with or separate from them. The bottom frame 110 has an XY-axis positioning lock hole 140 at its end. The clamp frame 210 has an XY-axis sliding positioning pin 240 at positions corresponding to the XY-axis positioning lock hole 140.

[0019] It should be noted that the heavy-duty buffer mechanism 1100 is located at both ends of the bottom frame 110 on the side away from the turntable device 100, and there are generally two of them. The top surface of the buffer mechanism 110 is higher than the highest point of the large surface of the bottom frame 110. The bottom frame 110 is located on the side of the bottom surface of the bottom frame 110. The first lateral ball guide mechanism 250 and the second lateral ball guide mechanism 260 extend downward from the bottom to the clamp frame 210 through the mounting base, so as not to affect the fit of the two contact surfaces. The X-axis positioning groove 130 and the Z-axis positioning groove 120 are set on one side of the surface of the bottom frame 110 through the mounting base. After being assembled with the X-axis positioning block 230 and the Z-axis positioning block 220, they achieve precise positioning while also restricting the movement in that direction.

[0020] In a preferred embodiment, the bottom frame 110 is symmetrically provided with XZ guide mechanisms 170 on both sides of the length direction. The XZ guide mechanisms 170 on both sides are inclined upward to form a V-shaped structure. The clamp frame 210 has XZ guide blocks 270 that cooperate with the XZ guide mechanisms 170 at the corresponding positions.

[0021] In a preferred embodiment, the bottom frame 110 has a Z-direction quick clamp 190 on one side of the XY-direction positioning lock hole 140, and the clamp frame 210 has a Z-direction tensioning claw 280 at the corresponding position of the Z-direction quick clamp 190. The Z-direction quick clamp 190 and the Z-direction tensioning claw 280 are locked or separated.

[0022] In a preferred embodiment, the Z-direction quick clamp 190 has a Z-direction tension induction switch 112 on one side to detect whether it is locked.

[0023] In a preferred embodiment, an XY-direction positioning sensor switch 113 is provided below the XY-direction positioning lock hole 140.

[0024] In a preferred embodiment, the bottom frame 110 has a vehicle model recognition switch 111, and the clamp frame 210 has an identification card at the position corresponding to the vehicle model recognition switch 111.

[0025] Brief description of usage:

[0026] The clamp frame 210 is the part of the clamp that needs to be replaced. The bottom frame 110 on the turntable device 100 is the part that fixes the clamp frame 210. During installation, the clamp frame 210 is lifted by a forklift to a position approximately above the bottom frame 110. The height of the fork arm is slowly lowered. The stacked spring in the heavy-duty buffer mechanism 1100 reduces the impact caused by the rapid descent of the fork arm. The clamp frame 210 is roughly positioned under the interaction between the XZ direction guide block 170 and the XZ direction guide mechanism 270. The clamp frame 210 rests on the low-friction heavy-duty universal ball 114. Then, external force is used to push the clamp frame 210 towards the X direction positioning block 130. The interaction between the first lateral guide block 150 and the second lateral guide block 160 and the first lateral guide mechanism 250 and the second lateral guide mechanism 260 provides coarse guidance for this process. When it is about to be in place... The Z-axis positioning groove 120 and X-axis positioning groove 130 are precisely guided and limited between the Z-axis positioning block 220 and X-axis positioning block 230. Then, the XY-axis sliding positioning pin 240 is inserted into the XY-axis positioning pin hole 140. When the XY-axis positioning sensor switch 113 receives a signal, the Z-axis tension quick clamp 190 is engaged with the Z-axis tensioning claw 280 and tightened. When the Z-axis tensioning sensor switch 112 receives a signal, the vehicle model recognition switch 111 is used to confirm the vehicle model information of the replaced fixture. During disassembly, the Z-axis tension quick clamp 190 is released and the XY-axis sliding positioning pin 240 is removed. Then, the fixture frame 210 is forked away to continue replacing other models of fixtures.

[0027] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A quick-change fixing structure of a clamp, used for quick replacement of a clamp base (200) by a rotary table device (100), characterized in that, The fixture base (200) comprises a bottom frame (110) and a fixture frame (210) that cooperate with each other, the bottom frame (110) is fixedly connected with the rotary table device (100), the fixture frame (210) is overlapped or separated on the upper part of the bottom frame (110) to realize replacement of different types of fixtures, a plurality of heavy buffering mechanisms (1100) are arranged on the length direction sides of the bottom frame (110), at least two groups of first lateral guide blocks (150) and second lateral guide blocks (160) are arranged on the width direction sides of the bottom frame (110), the fixture frame (210) is provided with first lateral ball guide mechanisms (250) and second lateral ball guide mechanisms (260) at positions corresponding to the first lateral guide blocks (150) and the second lateral guide blocks (160) respectively, a plurality of low-friction heavy universal bearings (114) are arranged at the joint of the surface of the bottom frame (110) and the fixture frame (210), the bottom frame (110) is provided with a plurality of X-direction positioning grooves (130) and Z-direction positioning grooves (120) at one end in the length direction, the fixture frame (210) is provided with X-direction positioning blocks (230) and Z-direction positioning blocks (220) that cooperate with or are separated from the X-direction positioning grooves (130) and the Z-direction positioning grooves (120) at positions corresponding to the X-direction positioning grooves (130) and the Z-direction positioning grooves (120) respectively, and the bottom frame (110) is provided with XY-direction positioning lock holes (140) at the end, and the fixture frame (210) is provided with XY-direction sliding positioning pins (240) at positions corresponding to the XY-direction positioning lock holes (140).

2. The quick-change fixing structure of a clamp according to claim 1, characterized in that, The bottom frame (110) is symmetrically provided with XZ guide mechanisms (170) on the length direction sides, the XZ guide mechanisms (170) on the two sides are inclined upward to form a V-shaped structure, and the fixture frame (210) is provided with XZ-direction guide blocks (270) that cooperate with the XZ guide mechanisms (170) at positions corresponding to the XZ guide mechanisms (170).

3. The quick-change fixing structure of a clamp according to claim 2, characterized in that, The bottom frame (110) is provided with a Z-direction fastening and clamping clamp (190) on one side of the XY-direction positioning lock hole (140), the fixture frame (210) is provided with a Z-direction tensioning claw (280) at a position corresponding to the Z-direction fastening and clamping clamp (190), and the Z-direction fastening and clamping clamp (190) is locked or separated from the Z-direction tensioning claw (280).

4. The quick-change fixing structure of a clamp according to claim 3, characterized in that, The Z-direction fastening and clamping clamp (190) is provided with a Z-direction tensioning inductive switch (112) on one side to detect whether it is locked.

5. The quick-change fixture fixing structure according to claim 1, wherein The XY-direction positioning lock hole (140) is provided with an XY-direction in-place inductive switch (113) below.

6. The quick-change fixture securing structure according to claim 1, wherein The bottom frame (110) is provided with a vehicle type identification switch (111), and the fixture frame (210) is provided with an identity recognition card at a position corresponding to the vehicle type identification switch (111).

7. The quick-change fixture securing structure of claim 1, wherein The surface of the bottom frame (110) away from the rotary table device (100) is provided with a limiting seat (180).

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