Machining device suitable for multi-vehicle-type clamp switching

Abstract

The utility model relates to the technical field of intelligent welding systems, in particular to a machining device suitable for multi-vehicle-type fixture switching, which comprises a rotary table, a trolley, a trolley guide mechanism, a trolley positioning mechanism, a fixture guide mechanism and a fixture positioning mechanism, the clamp guide mechanism comprises a trolley sliding rail and clamp sliding rails arranged on the periphery of the rotary table in the radial direction, Z-shaped guide notches are formed in the free ends of the clamp sliding rails, each clamp is provided with two clamp sliding rails, the guide notches in the two clamp sliding rails are symmetrically arranged, and Z-shaped butt joint notches are formed in the free ends of the trolley sliding rails. The butt joint notch is used for being matched with the guide notch to achieve butt joint of the trolley sliding rail and the clamp sliding rail; rollers are rotationally arranged at the bottoms of the two sides of the clamp, and anti-deviation wheels are rotationally arranged on the two sides of the rollers. The automobile machining device solves the problem that an existing automobile machining device is troublesome to operate when clamps are switched.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent welding systems, and in particular to a processing device suitable for switching between clamps of multiple vehicle types. Background Art

[0002] In automobile manufacturing, due to the different structures of positioning fixtures required for white-body products of different models, traditional welding workshops can generally only meet the online production of 2-3 models. Therefore, in order to improve production efficiency, most welding workshops currently use a four-sided turntable to switch between different models of fixtures. That is, four different models of fixtures are fixed on the turntable, and the corresponding model fixtures are turned to the welding robot for processing by rotating the turntable, which can meet the welding of 4 models. However, if more models are to be produced, workers are required to manually remove the fixtures from the turntable and replace them with fixtures of new models. Due to the large size and heavy weight of the fixtures, the disassembly and transportation process is time-consuming and labor-intensive, which seriously affects production efficiency. Utility Model Content

[0003] The utility model aims to provide a processing device suitable for clamp switching of multiple vehicle models, so as to solve the problem that the existing automobile processing device is troublesome to operate when the clamp is switched, which affects the production efficiency.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A processing device suitable for switching of multiple types of fixtures comprises a turntable, on which four types of fixtures can be detachably installed, a trolley, a trolley guiding mechanism, a trolley positioning mechanism, a fixture guiding mechanism and a fixture positioning mechanism, the fixture guiding mechanism comprising a trolley slide rail arranged on the trolley and a fixture slide rail radially arranged around the turntable, a Z-shaped guiding notch is arranged at the free end of the fixture slide rail, two fixture slide rails are arranged at each fixture, and the guiding notches on the two fixture slide rails are symmetrically arranged, a Z-shaped docking notch is arranged at the free end of the trolley slide rail, and the docking notch is used to cooperate with the guiding notch to achieve docking between the trolley slide rail and the fixture slide rail; rollers are rotatably arranged at the bottom of both sides of the fixture, and the rollers can roll on the top surfaces of the fixture slide rail and the trolley slide rail, and anti-skew wheels are rotatably arranged on both sides of the rollers, and the anti-skew wheels can roll on the sides of the fixture slide rail and the trolley slide rail.

[0006] Preferably, as an improvement, wheels are arranged on both sides of the trolley, and the trolley guiding mechanism includes wheel guide plates symmetrically arranged on both sides of the trolley, the wheel guide plates are arranged on the ground, and the wheel guide plates include a straight section extending along the moving direction of the trolley and an outer biased section offset toward the outer side of the trolley, and the straight section is smoothly connected to one end of the outer biased section close to the turntable.

[0007] Preferably, as an improvement, the trolley guide mechanism also includes guide wheels and guide blocks, the guide wheels include side guide wheels and top guide wheels, the guide blocks are symmetrically fixed to the ground, and side guide surfaces for the side guide wheels to roll are formed on the outer sides of the guide blocks. The side guide surfaces include a straight surface extending along the moving direction of the trolley and an arcuate surface offset toward the inner side of the trolley, the straight surface is smoothly connected to one end of the arcuate surface close to the turntable, and a guide inclined surface is inclined on the top of the guide block for the top guide wheel to roll to the top surface of the guide block.

[0008] Preferably, as an improvement, the clamp positioning mechanism includes a vertically arranged positioning pin, the positioning pin is connected to a cylinder for driving the positioning pin to rise and fall, the clamp is provided with wing plates on both sides, a plurality of positioning wheels are rotatably provided at the bottom of the wing plates, a positioning space for the positioning pin to be inserted is formed between the plurality of positioning wheels, and the positioning wheels and the positioning pins are in rolling cooperation.

[0009] Preferably, as an improvement, the clamp positioning mechanism further comprises a clamp positioning plate fixed to the bottom of the wing plate, and a clamping assembly for clamping the clamp positioning plate is provided on one side of the clamp positioning plate.

[0010] Preferably, as an improvement, the trolley positioning mechanism includes trolley positioning plates arranged on both sides of the trolley, and a trolley clamping cylinder is arranged on one side of the trolley positioning plate.

[0011] Preferably, as an improvement, the clamp guiding mechanism also includes a pressure plate, a pressure plate seat is fixed on the wing plate, one end of the pressure plate is pressed on the pressure plate seat, and the other end of the pressure plate is pressed on the trolley, and a limit plate is vertically arranged on the pressure plate seat for limiting the pressure plate.

[0012] The beneficial effects of this program are:

[0013] 1. This solution sets rollers and anti-bias wheels at the bottom of the fixture, and sets a fixture slide rail. When replacing the fixture, the trolley slide rail is docked with the fixture slide rail. After removing the fixture, push the fixture along the fixture slide rail and the trolley slide rail, and the fixture can be easily moved to the trolley. The fixture to be replaced is transported away by the trolley; the new fixture is also pushed onto the turntable along the trolley slide rail and the fixture slide rail and then locked by bolts. In this solution, after removing the bolts of the fixture, the fixture can be easily pushed onto the trolley, and the fixture can be transported directly by the trolley. There is no need to manually carry the fixture, which is convenient for replacement and efficient.

[0014] 2. When the trolley is docked, on the one hand, the wheel guide plates on both sides guide the wheels; on the other hand, the side guide wheels roll along the side guide surfaces of the guide blocks, and the top guide wheels roll along the top surfaces of the guide blocks to guide and limit the trolley; on the other hand, the trolley rail and the fixture rail are docked, and when docking, the Z-shaped docking notch on the trolley rail and the Z-shaped guide notch on the fixture rail cooperate to guide and limit the trolley. This solution guides and limits the trolley from the above three aspects, and can achieve precise docking of the trolley and the fixture.

[0015] 3. After the trolley is in place, the trolley positioning plate is clamped by the trolley clamping cylinder, which can effectively realize the positioning of the trolley and ensure the sliding stability of the fixture.

[0016] 4. The anti-deflection wheels at the bottom of the fixture roll along the fixture slide rails and the trolley slide rails, holding the trolley slide rails and the fixture slide rails from both sides, which can also ensure the stable sliding of the fixture. In addition, when the fixture slides, the pressure plate seat on the wing plate slides along the pressure plate, which can further guide the fixture and further ensure the stability of the fixture sliding. Furthermore, by buckling the pressure plate on the pressure plate seat and the trolley, on the basis of guiding the fixture, the two wings of the fixture can also be pressed to prevent the fixture from deflecting to the side, so that the fixture remains stable.

[0017] 5. After the fixture is in place, on the one hand, it is connected to the turntable by bolts; on the other hand, the cylinder drives the positioning pin to be inserted into the positioning space to position the fixture; on the other hand, the fixture clamping cylinder clamps the fixture positioning plate. This solution positions the fixture from the above three aspects to ensure the stability of the fixture during processing.

[0018] 6. Using multiple positioning wheels to form a positioning space for the positioning pin to be inserted can reduce the wear of the positioning pin and extend the service life of the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure 2 for Figure 1 Schematic diagram of part of the structure.

[0021] Figure 3 It is a schematic diagram of the structure of the guide wheel and guide block.

[0022] Figure 4 for Figure 2 Enlarged schematic diagram of part A.

[0023] Figure 5 for Figure 2 Schematic diagram of the enlarged portion B.

[0024] Figure 6 for Figure 2 Enlarged schematic diagram of part C. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: turntable 1, clamp 2, trolley 3, trolley positioning plate 31, trolley clamping cylinder 32, wheel 4, straight section 41, outer deviated section 42, trolley slide rail 50, pressure plate 51, limit plate 52, pressure plate seat 53, clamp slide rail 54, guide notch 55, anti-deflection wheel 56, guide block 6, guide inclined surface 61, arc surface 62, straight surface 63, side guide wheel 64, top guide wheel 65, positioning pin 7, positioning wheel 71, cylinder 72, connecting plate 73, clamping cylinder 74.

[0027] Example:

[0028] like Figure 1 As shown, a processing device suitable for switching of multiple types of fixtures includes a turntable 1, a trolley 3, a trolley guide mechanism, a trolley positioning mechanism, a fixture guide mechanism and a fixture positioning mechanism. Four types of fixtures 2 are installed on the turntable 1 by bolts, and the fixture 2 is positioned by the fixture positioning mechanism when on the turntable 1. The trolley 3 is used to switch the fixture 2. Specifically, the trolley 3 is docked with the turntable 1 to transport the fixture 2 to be replaced from the turntable 1, and then the fixture 2 to be installed is transported to the turntable 1 by the trolley 3.

[0029] The fixture guide mechanism is used to guide the fixture 2 when the fixture 2 is transported to the trolley 3 and when the fixture 2 is transported from the trolley 3 to the turntable 1. Figure 2 and Figure 5 As shown, the fixture guide mechanism includes a trolley rail 50 bolted to both sides of the trolley 3 and a fixture rail 54 radially installed around the turntable 1, and a Z-shaped guide notch 55 is formed at the free end of the fixture rail 54. Two fixture rails 54 are installed at each fixture 2, and the guide notches 55 on the two fixture rails 54 are symmetrically arranged. The two fixture rails 54 are respectively docked with the two trolley rails 50 on the trolley 3, and a Z-shaped docking notch is formed at the free end of the trolley rail 50. The docking notch is used to cooperate with the guide notch 55 to achieve docking between the trolley rail 50 and the fixture rail 54. Rollers are rotatably installed at the bottom of both sides of the fixture 2, and the rollers can roll on the top surfaces of the fixture rail 54 and the trolley rail 50. Anti-deflection wheels 56 are rotatably installed on both sides of the rollers, and the anti-deflection wheels 56 can roll on the sides of the fixture rail 54 and the trolley rail 50.

[0030] Combination Figure 6 As shown, the clamp guiding mechanism also includes a pressure plate 51, and wing plates are integrally formed on both sides of the clamp 2. A pressure plate seat 53 is bolted to the top of the wing plate. One end of the pressure plate 51 is placed on the pressure plate seat 53, and the other end of the pressure plate 51 is placed on the trolley 3. Limiting plates 52 for limiting the pressure plate 51 are vertically fixed on both sides of the top of the pressure plate seat 53 by bolts.

[0031] Combination Figure 4As shown, wheels 4 are rotatably mounted on both sides of the trolley 3, and the trolley guide mechanism includes wheel guide plates symmetrically arranged on the ground on both sides of the trolley 3. The wheel guide plates include straight sections 41 extending along the moving direction of the trolley 3 (radial direction of the turntable 1) and outer deflected sections 42 offset toward the outside of both sides of the trolley 3. The straight section 41 is smoothly connected to one end of the outer deflected section 42 close to the turntable 1. Figure 3 As shown, the trolley guide mechanism also includes guide wheels and guide blocks 6, the guide wheels include side guide wheels 64 and top guide wheels 65, the guide blocks 6 are symmetrically fixed to the ground, and the outer side of the guide blocks 6 is formed with side guide surfaces for the side guide wheels 64 to roll, and the side guide surfaces include a flat surface 63 extending along the moving direction of the trolley 3 and an arcuate surface 62 offset toward the inner side of the trolley 3, and the flat surface 63 is smoothly connected to one end of the arcuate surface 62 close to the turntable 1. A guide inclined surface 61 is inclinedly arranged on the top of the guide block 6 for the top guide wheel 65 to roll to the top surface of the guide block 6.

[0032] like Figure 6 As shown, the fixture positioning mechanism includes a vertical positioning pin 7, the positioning pin 7 is connected to a cylinder 72 for driving the positioning pin 7 to rise and fall, the piston rod of the cylinder 72 is connected to the positioning pin 7 through a connecting plate 73, three positioning wheels 71 are rotatably installed at the bottom of the wing plates on both sides of the fixture 2, and a positioning space for the positioning pin 7 to be inserted is formed between the three positioning wheels 71, the rotation direction of the three positioning wheels 71 is consistent with the lifting direction of the positioning pin 7, and the three positioning wheels 71 are rollingly matched with the positioning pin 7, that is, the wheel surfaces of the three positioning wheels 71 can be rollingly connected with the circumferential surface of the positioning pin 7. The fixture positioning mechanism also includes a fixture positioning plate bolted to the bottom of the wing plate, and a clamping assembly for clamping the fixture positioning plate is installed on one side of the fixture positioning plate, and the clamping assembly includes a clamping cylinder 74, a connecting rod group and a clamping plate, and the clamping cylinder 74 and the clamping plate are connected by a connecting rod group, and the connecting rod group is used to transmit the power of the clamping cylinder 74 to the clamping plate.

[0033] like Figure 5 As shown, the trolley positioning mechanism includes a trolley positioning plate 31 bolted to both sides of the trolley 3, and a trolley clamping cylinder 32 is installed on one side of the trolley positioning plate 31. After the trolley 3 reaches the trolley clamping cylinder 32, the trolley clamping cylinder 32 clamps the trolley positioning plate 31 to achieve the positioning of the trolley 3.

[0034] The working principle of a processing device suitable for multi-model fixture switching is as follows:

[0035] The trolley 3 moves to the fixture 2 that needs to be switched, and the trolley 3 drives toward the turntable 1, so that the trolley slide rail 50 is docked with the fixture slide rail 54. During the docking process, on the one hand, the wheel guide plates on both sides guide the wheels 4 of the trolley 3; on the other hand, the side guide wheels 64 roll along the side guide surfaces of the guide block 6, and the top guide wheels 65 roll along the top surface of the guide block 6; on the other hand, the Z-shaped docking notch on the trolley slide rail 50 is inserted into the Z-shaped guide notch 55 on the fixture slide rail 54. The trolley 3 is guided from the above three aspects to ensure that the trolley slide rail 50 and the fixture slide rail 54 are accurately docked.

[0036] After the trolley slide rail 50 and the fixture slide rail 54 are docked, the trolley 3 is in place, and after the trolley 3 is in place, the trolley clamping cylinder 32 clamps the trolley positioning plate 31 to achieve the positioning of the trolley 3. After the trolley 3 is in place, the pressing plate 51 is placed, one end of the pressing plate 51 is pressed on the pressing plate seat 53, and the other end of the pressing plate 51 is pressed on the trolley 3.

[0037] After the trolley 3 is positioned, the piston rod of the cylinder 72 extends, and the piston rod drives the positioning pin 7 to descend through the connecting plate 73, and the positioning pin 7 is separated from the positioning space; in addition, the clamping cylinder 74 is actuated, and the connecting rod group transmits the power of the clamping cylinder 74 to the clamping plate, and the clamping plate releases the fixture positioning plate, and the fixture 2 is released. The worker removes the bolts connecting the fixture 2 and the turntable 1, and then pushes the fixture 2 along the fixture slide rail 54 and the trolley slide rail 50 to the trolley 3, and is transported away by the trolley 3, which is convenient for disassembly and transportation. The fixture 2 to be replaced is transported to the turntable 1 by the trolley 3. After the trolley slide rail 50 is docked with the fixture slide rail 54, the fixture 2 to be replaced is pushed into the turntable 1 along the trolley slide rail 50 and the fixture slide rail 54, and the clamping plate clamps the fixture positioning plate, and the positioning pin 7 is reset and inserted into the positioning wheel 71, and the fixture 2 is locked, and then the fixture 2 is fixed to the turntable 1 by bolts, and the replacement of the fixture 2 is completed.

[0038] When the clamp 2 slides along the trolley slide rail 50 and the clamp slide rail 54, the anti-deflection wheels 56 on both sides hold the trolley slide rail 50 and the clamp slide rail 54 to achieve anti-deflection. On the other hand, the wing plates on both sides of the clamp 2 move along the pressure plate 51 through the pressure plate seat 53, which can further guide the movement of the clamp 2 and improve the sliding stability of the clamp 2. In addition, the pressure plate 51 pressed on both sides of the clamp 2 can further prevent the clamp 2 from lateral deviation and improve the anti-deflection effect.

[0039] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A processing device suitable for switching between multiple types of fixtures, comprising a turntable on which four types of fixtures can be detachably mounted, characterized in that: The clamp guide mechanism includes a trolley, a trolley guide mechanism, a trolley positioning mechanism, a fixture guide mechanism and a fixture positioning mechanism. The fixture guide mechanism includes a trolley slide rail arranged on the trolley and a fixture slide rail radially arranged around the turntable. The free end of the fixture slide rail is provided with a Z-shaped guide notch. Two fixture slide rails are provided at each fixture and the guide notches on the two fixture slide rails are symmetrically arranged. The free end of the trolley slide rail is provided with a Z-shaped docking notch, and the docking notch is used to cooperate with the guide notch to achieve the docking of the trolley slide rail and the fixture slide rail; rollers are rotatably arranged at the bottom of both sides of the fixture, and the rollers can roll on the top surfaces of the fixture slide rails and the trolley slide rails. Anti-skew wheels are rotatably arranged on both sides of the rollers, and the anti-skew wheels can roll on the sides of the fixture slide rails and the trolley slide rails.

2. A processing device suitable for switching between multiple types of fixtures according to claim 1, characterized in that: Wheels are arranged on both sides of the trolley. The trolley guiding mechanism includes wheel guide plates symmetrically arranged on both sides of the trolley. The wheel guide plates are arranged on the ground. The wheel guide plates include a straight section extending along the moving direction of the trolley and an outer biased section offset toward the outer side of the trolley. The straight section is smoothly connected to one end of the outer biased section close to the turntable.

3. A processing device suitable for switching between multiple types of fixtures according to claim 2, characterized in that: The trolley guide mechanism also includes guide wheels and guide blocks. The guide wheels include side guide wheels and top guide wheels. The guide blocks are symmetrically fixed on the ground. Side guide surfaces for rolling of the side guide wheels are formed on the outer sides of the guide blocks. The side guide surfaces include a straight surface extending along the moving direction of the trolley and an arcuate surface offset toward the inner side of the trolley. The straight surface is smoothly connected to one end of the arcuate surface close to the turntable. A guide inclined surface is inclined on the top of the guide block for rolling the top guide wheel to the top surface of the guide block.

4. A processing device suitable for switching between multiple types of fixtures according to claim 3, characterized in that: The fixture positioning mechanism includes a vertically arranged positioning pin, which is connected to a cylinder for driving the positioning pin to rise and fall. The fixture is provided with wing plates on both sides, and a plurality of positioning wheels are rotatably arranged at the bottom of the wing plates. A positioning space for the positioning pin to be inserted is formed between the plurality of positioning wheels, and the positioning wheels and the positioning pins are in rolling cooperation.

5. A processing device suitable for switching between multiple types of fixtures according to claim 4, characterized in that: The fixture positioning mechanism also includes a fixture positioning plate fixed to the bottom of the wing plate, and a clamping assembly for clamping the fixture positioning plate is arranged on one side of the fixture positioning plate.

6. A processing device suitable for switching between multiple types of fixtures according to claim 5, characterized in that: The trolley positioning mechanism comprises trolley positioning plates arranged on both sides of the trolley, and a trolley clamping cylinder is arranged on one side of the trolley positioning plate.

7. A processing device suitable for switching between multiple types of fixtures according to claim 6, characterized in that: The fixture guiding mechanism also includes a pressing plate, a pressing plate seat is fixed on the wing plate, one end of the pressing plate is pressed on the pressing plate seat, and the other end of the pressing plate is pressed on the trolley, and a limiting plate for limiting the pressing plate is vertically arranged on the pressing plate seat.

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