Positioning clamp device and assembly line conveying system

Abstract

The utility model relates to a positioning clamp device and an assembly line conveying system. The positioning clamp device comprises a clamp base and a clamping mechanism; the clamp base is arranged on the conveying belt and used for loading a machined part. The clamp base comprises a base body and a clamping piece arranged on the base body and used for fixing a machined piece. The clamping mechanism is used for clamping the clamp base and enabling the clamp base to be separated from the conveying belt; the clamping mechanism comprises a pair of clamping jaws arranged oppositely and a clamping air cylinder used for driving the two clamping jaws to be close to each other or away from each other. The clamping jaw is provided with a positioning assembly corresponding to the positioning area of the clamp base. The assembly line conveying system comprises the positioning clamp device and further comprises a conveying belt used for conveying the clamp base, and the clamping mechanisms are arranged at different machining stations along the conveying belt. Compared with the prior art, the clamp base can be clamped and separated from the conveying belt, and the machining quality of products and efficient operation of an assembly line are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a positioning jig device and an assembly line conveying system. Background Art

[0002] In a full-automatic assembly line, devices with different functions are arranged in sequence according to the technological process, and the devices are connected by a conveyor belt. The conveyor belt is provided with a special base for carrying parts. The conveyor belt is responsible for transporting the base carrying the parts to each device. Among them, when the base carries each device, extremely precise positioning is required, otherwise the device will not be able to perform corresponding processing operations on the parts. Moreover, the base needs to be separated from the conveyor belt during positioning to avoid the vibration brought by the conveyor belt affecting the positioning accuracy of the base and thus damaging the parts being processed. This precise positioning requirement and the separation design of the base from the conveyor belt are crucial for ensuring the processing quality of the product and the efficient operation of the assembly line.

[0003] However, the current equipment situation has significant irrationality. In the original technical mode, whenever the part base enters the device for processing, it needs to be pushed out from the conveyor belt, clamped and fixed by the device before the processing operation can be carried out. After the processing is completed, the clamp is loosened, and then the base is pushed back to the assembly line. Such operations will make the space utilization rate of the production line extremely low, and each device needs to be equipped with a set of independent and complete action execution mechanisms to realize the whole set of process actions of pushing out, clamping, processing, loosening and pushing back. This not only causes serious losses in terms of time, but also greatly increases the investment cost of the equipment and causes excessive consumption of resources.

[0004] Therefore, it is urgent to develop a new type of positioning jig device to efficiently clamp the jig base on the assembly line conveying system and separate it from the conveyor belt. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a positioning jig device and an assembly line conveying system to clamp the jig base on the assembly line conveying system and separate it from the conveyor belt, so as to improve the processing quality of the product and realize the efficient operation of the assembly line system.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] The utility model provides a positioning jig device, including a jig base and a clamping mechanism;

[0008] The fixture base is placed on the conveyor belt and used for loading workpieces to be processed; the fixture base includes a base body and a clamping member provided on the base body for fixing the workpiece to be processed; at least two centrally symmetric positioning areas are provided on the outer side of the base body, and each positioning area includes a vertical positioning groove and a horizontal positioning groove, and the vertical positioning groove and the horizontal positioning groove are arranged in a cross shape;

[0009] The clamping mechanism is used for clamping the fixture base and separating the fixture base from the conveyor belt; the clamping mechanism includes a pair of oppositely arranged clamping jaws and a clamping cylinder for driving the two clamping jaws to approach or separate from each other; a positioning component corresponding to the positioning area of the fixture base is provided on the clamping jaw, and the positioning component includes a vertical positioning member capable of fitting with the vertical positioning groove and a horizontal positioning member capable of fitting with the horizontal positioning groove, and the vertical positioning member and the horizontal positioning member are arranged in a cross shape;

[0010] Define the distance from the cross center of the positioning area to the conveyor belt as the first height, and the distance from the cross center of the positioning component to the conveyor belt as the second height, and the first height is less than the second height.

[0011] Further, both the vertical positioning groove and the horizontal positioning groove are V-shaped grooves, and the two groove walls of the V-shaped groove are inclined groove walls.

[0012] Further, the included angle formed between the two groove walls of the V-shaped groove is 90°, and the two groove walls are transitioned by an arc.

[0013] Further, both the vertical positioning member and the horizontal positioning member are cylindrical pin structures.

[0014] Furthermore, the vertical positioning member can be tangent to the two groove walls of the vertical positioning groove, and the horizontal positioning member can be tangent to the two groove walls of the horizontal positioning groove.

[0015] Further, the clamping jaw is of an L-shaped structure, which includes a horizontal section slidably arranged on the clamping cylinder and a vertical section connected to the horizontal section, and the positioning component is arranged at the top end of the vertical section.

[0016] Further, the difference between the first height and the second height is 3 - 5 mm.

[0017] The present utility model further provides an assembly line conveying system including the above positioning fixture device, and further includes a conveyor belt for conveying the fixture base, and the clamping mechanism is arranged at different processing stations along the conveyor belt.

[0018] Further, the clamping cylinder is arranged below the conveyor belt.

[0019] Further, the clamping jaws are respectively arranged on both sides of the conveyor belt, and the conveyor belt can pass through the space formed between the two clamping jaws.

[0020] Furthermore, the pipeline conveying system further includes a material blocking mechanism respectively arranged at different processing stations.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) In the utility model, the fixture base transports the workpieces on the conveyor belt, and at the same time, the clamping mechanism clamps the fixture base and separates it from the conveyor belt to avoid the influence of the vibration of the conveyor belt on the positioning accuracy of the base, thereby improving the processing quality of the product and the efficient operation of the pipeline.

[0023] (2) The utility model ingeniously designs the shapes of the positioning components and the positioning area, so that when the cylindrical positioning component approaches the V-shaped groove of the positioning area, it can be naturally positioned on the center line of the V-shaped groove, realizing the automatic centering of the positioning piece, restricting the six degrees of freedom of the fixture base, reducing the positioning error, and achieving precise positioning.

[0024] (3) The fixture base of the utility model can be lifted upward by a certain distance under the cooperation of the positioning components and the positioning area to successfully separate from the conveyor belt, effectively blocking the vibration transmission of the entire conveyor belt system.

[0025] (4) Since the utility model has V-shaped grooves for guiding in both the horizontal and vertical directions, the requirements for controlling the initial position of the fixture base on the conveyor belt are relatively loose, and the compatibility and reliability are more excellent.

[0026] (5) The pipeline conveying system of the utility model integrates the processes of conveying, clamping, and processing workpieces, and integrates the independent base positioning station into the assembly station, which can greatly save equipment investment and equipment floor area, reduce production costs, and improve the reliability of the entire conveying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the positioning fixture device of the utility model.

[0028] Figure 2 is a schematic structural diagram of the fixture base of Embodiment 2 of the utility model.

[0029] Figure 3 is a top view of the fixture base of Embodiment 2 of the utility model.

[0030] Figure 4 is a schematic structural diagram of the horizontal positioning groove of Embodiment 2 of the utility model.

[0031] Figure 5 is a schematic structural diagram of the clamping mechanism of Embodiment 3 of the utility model.

[0032] Figure 6This is the front view of the clamping mechanism of Embodiment 3 of the present utility model.

[0033] Figure 7 This is the structural schematic diagram of the positioning component of Embodiment 3 of the present utility model.

[0034] Figure 8 This is the schematic diagram of the fixture base of Embodiment 4 of the present utility model being detached from the conveyor belt.

[0035] Figure 9 This is the structural schematic diagram of the pipeline conveyor system of Embodiment 5 of the present utility model.

[0036] Figure 10 This is the structural schematic diagram of the material blocking mechanism of Embodiment 5 of the present utility model.

[0037] Explanation of the marks in the figure:

[0038] 1 - Fixture base, 11 - Base main body, 12 - Clamping piece, 13 - Positioning area, 131 - Vertical positioning groove, 132 - Horizontal positioning groove;

[0039] 2 - Clamping mechanism, 21 - Claw, 211 - Horizontal section, 212 - Vertical section, 22 - Clamping cylinder, 23 - Positioning component, 231 - Vertical positioning piece, 232 - Horizontal positioning piece;

[0040] 3 - Workpiece to be processed;

[0041] 4 - Conveyor belt;

[0042] 5 - Material blocking mechanism. Detailed implementation manners

[0043] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0044] In the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] Embodiment 1:

[0047] A positioning fixture device comprises a fixture base 1 and a clamping mechanism 2.

[0048] like Figure 1 As shown, the fixture base 1 of this embodiment is placed on the conveyor belt 4 and is used to load the workpiece 3. The fixture base 1 includes a base body 11 and a clamping member 12 provided on the base body 11 for fixing the workpiece 3; the outer side surface of the base body 11 is provided with at least two centrally symmetrical positioning areas 13, each of which includes a vertical positioning groove 131 and a horizontal positioning groove 132, and the vertical positioning groove 131 and the horizontal positioning groove 132 are arranged in a cross shape.

[0049] The clamping mechanism 2 of this embodiment is used to clamp the clamp base 1 and make the clamp base 1 separate from the conveyor belt 4. The clamping mechanism 2 includes a pair of clamping jaws 21 arranged opposite to each other and a clamping cylinder 22 for driving the two clamping jaws 21 to move closer to or farther from each other. The clamping jaws 21 are provided with a positioning assembly 23 corresponding to the positioning area 13 of the clamp base 1. The positioning assembly 23 includes a vertical positioning member 231 that can fit with the vertical positioning groove 131 and a horizontal positioning member 232 that can fit with the horizontal positioning groove 132. The vertical positioning member 231 and the horizontal positioning member 232 are arranged in a cross shape.

[0050] In this embodiment, the distance from the cross center of the vertical positioning groove 131 and the horizontal positioning groove 132 to the conveyor belt 4 is defined as the first height, and the distance from the cross center of the vertical positioning member 231 and the horizontal positioning member 232 to the conveyor belt 4 is defined as the second height. The first height is less than the second height. Therefore, during the clamping process, the fixture base 1 can be lifted upward by a certain height under the guidance of the vertical positioning groove 131 and the horizontal positioning groove 132, so that the first height after clamping is equal to the second height, realizing the successful separation of the fixture base 1 from the conveyor belt 4.

[0051] Embodiment 2:

[0052] A positioning fixture device includes a fixture base 1 and a clamping mechanism 2.

[0053] As Figures 2-4 shown, the fixture base 1 of this embodiment includes a base main body 11 and a clamping member 12 provided on the base main body 11 for fixing the workpiece 3. The clamping member 12 of this embodiment is an overall hollow cylindrical structure, which can firmly clamp and fix the cylindrical workpiece 3. At least two centrally symmetric positioning areas 13 are provided on the outer side surface of the base main body 11. The positioning areas 13 are centrally symmetric along the axis of the base main body 11, which can achieve stable clamping, and the number of the positioning areas 13 can be correspondingly increased according to the clamping position and the shape of the base main body 11. The clamping mechanism 2 includes a pair of oppositely arranged clamping jaws 21 and a clamping cylinder 22 for driving the two clamping jaws 21 to approach or separate from each other. A positioning component 23 corresponding to the positioning area 13 of the fixture base 1 is provided on the clamping jaw 21.

[0054] The positioning areas 13 of this embodiment each include a vertical positioning groove 131 and a horizontal positioning groove 132, and the vertical positioning groove 131 and the horizontal positioning groove 132 are arranged in a cross shape. Specifically, the vertical positioning groove 131 and the horizontal positioning groove 132 of this embodiment are both V-shaped grooves, and the two groove walls of the V-shaped groove are both inclined groove walls. The included angle formed between the two groove walls of the V-shaped groove is 90°, and the two groove walls are transitioned by an arc. The positioning component 23 of this embodiment includes a vertical positioning member 231 that can fit with the vertical positioning groove 131 and a horizontal positioning member 232 that can fit with the horizontal positioning groove 132, and the vertical positioning member 231 and the horizontal positioning member 232 are arranged in a cross shape. The vertical positioning member 231 and the horizontal positioning member 232 of this embodiment are both cylindrical pin structures, wherein the vertical positioning member 231 can be tangent to the two groove walls of the vertical positioning groove 131 respectively, and the horizontal positioning member 232 can be tangent to the two groove walls of the horizontal positioning groove 132 respectively.

[0055] Based on the geometric symmetry and self - positioning effect of the V - groove, under the action of the clamping cylinder 22, when the cylindrical vertical positioning member 231 and the horizontal positioning member 232 approach the V - groove, the vertical positioning member 231 and the horizontal positioning member 232 will naturally be positioned on the center line of the V - groove, making the corresponding positioning members automatically centered. This self - positioning characteristic can limit the six degrees of freedom of the fixture base 1, reduce the positioning error, and achieve precise positioning.

[0056] Embodiment 3:

[0057] A positioning fixture device includes a fixture base 1 and a clamping mechanism 2. The difference from Embodiment 2 is that, as Figures 5-7 shown, the jaw 21 of this embodiment is of an L - shaped structure, which includes a horizontal section 211 slidably arranged on the clamping cylinder 22 and a vertical section 212 connected to the horizontal section 211, and the positioning assembly 23 is arranged at the top of the vertical section 212. Specifically, two L - shaped jaws 21 are arranged symmetrically with respect to the mirror image, and the positioning assemblies 23 are also arranged symmetrically with respect to the mirror image. The clamping cylinder 22 drives the two jaws 21 to move relatively, so that the two positioning assemblies 23 on the jaws 21 can approach each other to clamp the fixture base 1.

[0058] Embodiment 4:

[0059] A positioning fixture device includes a fixture base 1 and a clamping mechanism 2. The difference from Embodiment 2 is that in this embodiment, the distance from the cross - intersection center of the vertical positioning groove 131 and the horizontal positioning groove 132 to the conveyor belt 4 is defined as the first height, and the distance from the cross - intersection center of the vertical positioning member 231 and the horizontal positioning member 232 to the conveyor belt 4 is defined as the second height, and the first height is less than the second height.

[0060] Specifically, as Figure 8 shown, when the fixture base 1 is carried on the conveyor belt 4, the distance (13 mm) from the cross - intersection center of the positioning assembly 23 to the conveyor belt 4 is 3 mm higher than the distance (10 mm) from the center of the V - groove on the fixture base 1 (i.e., the cross - intersection center of the positioning area 13) to the conveyor belt 4. This enables the fixture base 1 to be lifted upward by 3 mm under the guidance of the V - groove during the clamping process, successfully disengaging from the conveyor belt 4, and effectively blocking the vibration transmission of the entire conveyor belt system. Since the V - groove guides in both the horizontal and vertical directions, the requirements for the initial position control of the fixture base 1 on the conveyor belt 4 are relatively loose, and the compatibility and reliability are more excellent.

[0061] Embodiment 5:

[0062] This embodiment provides an assembly - line conveyor system, which specifically includes the positioning fixture device described in Embodiment 1, and also includes a conveyor belt 4 for conveying the fixture base 1. As Figures 9-10As shown, the clamping mechanism 2 is arranged at different processing stations along the conveyor belt 4. Specifically, the clamping cylinder 22 is arranged below the conveyor belt 4, and the clamping jaws 21 are respectively arranged on both sides of the conveyor belt 4. The conveyor belt 4 can pass through the space formed between the two clamping jaws 21. The pipeline conveying system of this embodiment further includes a material blocking mechanism 5 respectively arranged at different processing stations, and the material blocking mechanism 5 can be a conventional telescopic cylinder.

[0063] The specific working principle of the pipeline conveying system of this embodiment is as follows:

[0064] A plurality of fixture bases 1 are loaded on the conveyor belt 4. The fixture bases 1 clamp and fix the workpieces 3 through the clamping members 12 on the base bodies 11, so that the workpieces 3 can enter different processing stations along with the conveyor belt 4. When entering the processing station A, the telescopic rod of the material blocking mechanism 5 extends to stop the fixture base 1. Subsequently, the clamping cylinder 22 of the clamping mechanism 2 drives the two clamping jaws 21 to approach each other, so that the positioning component 23 of the clamping mechanism 2 gradually approaches the positioning area 13 of the fixture base 1, and the clamping mechanism 2 firmly clamps the fixture base 1 through self-positioning. After the processing of the workpiece 3 is completed, the clamping mechanism 2 releases the clamping of the fixture base 1, and the fixture base 1 carries the workpiece 3 and enters the processing station B along with the conveyor belt 4 for subsequent processing.

[0065] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. A positioning fixture device, characterized in that, It includes a fixture base (1) and a clamping mechanism (2); The fixture base (1) is placed on the conveyor belt (4) and is used to load the workpiece (3); the fixture base (1) includes a base body (11) and a clamping member (12) provided on the base body (11) for fixing the workpiece (3); at least two centrally symmetric positioning areas (13) are provided on the outer side of the base body (11), and each positioning area (13) includes a vertical positioning groove (131) and a horizontal positioning groove (132), and the vertical positioning groove (131) and the horizontal positioning groove (132) are arranged in a cross shape; The clamping mechanism (2) is used to clamp the fixture base (1) and make the fixture base (1) separate from the conveyor belt (4); the clamping mechanism (2) includes a pair of oppositely arranged clamping jaws (21) and a clamping cylinder (22) for driving the two clamping jaws (21) to approach or separate from each other; a positioning component (23) corresponding to the positioning area (13) of the fixture base (1) is provided on the clamping jaw (21), and the positioning component (23) includes a vertical positioning member (231) that can fit with the vertical positioning groove (131) and a horizontal positioning member (232) that can fit with the horizontal positioning groove (132), and the vertical positioning member (231) and the horizontal positioning member (232) are arranged in a cross shape; Define the distance from the cross center of the positioning area (13) to the conveyor belt (4) as the first height, and the distance from the cross center of the positioning component (23) to the conveyor belt (4) as the second height, and the first height is less than the second height.

2. The positioning fixture device according to claim 1, wherein Both the vertical positioning groove (131) and the horizontal positioning groove (132) are V-shaped grooves, and the two groove walls of the V-shaped groove are inclined groove walls.

3. The positioning fixture device according to claim 2, characterized in that, The included angle formed between the two groove walls of the V-shaped groove is 90°, and the two groove walls are transitioned by an arc.

4. A positioning fixture device according to claim 2, characterized in that, Both the vertical positioning member (231) and the horizontal positioning member (232) are cylindrical pin structures.

5. A positioning fixture device according to claim 4, characterized in that, The vertical positioning member (231) can be tangent to the two groove walls of the vertical positioning groove (131), and the horizontal positioning member (232) can be tangent to the two groove walls of the horizontal positioning groove (132).

6. The positioning fixture device according to claim 1, characterized in that, The clamping jaw (21) is an L-shaped structure, which includes a horizontal section (211) slidably arranged on the clamping cylinder (22) and a vertical section (212) connected to the horizontal section (211), and the positioning component (23) is arranged at the top of the vertical section (212).

7. A positioning fixture device according to claim 1, wherein, The difference between the first height and the second height is 3 - 5 mm.

8. An assembly line conveying system comprising the positioning fixture device according to any one of claims 1-7, characterized in that, It also includes a conveyor belt (4) for conveying the fixture base (1); The clamping mechanism (2) is arranged at different processing stations along the conveyor belt (4).

9. A pipeline conveying system according to claim 8, characterized in that, The clamping cylinder (22) is arranged below the conveyor belt (4); The clamping jaws (21) are respectively arranged on both sides of the conveyor belt (4), and the conveyor belt (4) can pass through the space formed between the two clamping jaws (21).

10. A pipeline conveying system according to claim 8, characterized in that, The pipeline conveying system also includes a material blocking mechanism (5) respectively arranged at different processing stations.

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