Assembly tool rapid switching system

Abstract

The invention provides an assembly tool rapid switching system. The assembly tool rapid switching system comprises a precise positioning mechanism and a trolley loaded with workpieces to be assembled. The precise positioning mechanism is fixedly arranged at a preset position; the trolley has a first state and a second state; in the first state, the trolley is configured to be capable of being matched with the precise positioning mechanism, so that the workpiece to be assembled is in a to-be-assembled state; and in the second state, the trolley is configured to be capable of being separated from the precise positioning mechanism, so that the trolley loaded with the to-be-assembled workpiece is in a to-be-switched state. According to the quick switching system for the assembly tools, the trolleys loaded with the different workpieces to be assembled can be manually pushed to be matched with the precise positioning mechanism, so that the workpieces to be assembled can be quickly replaced, the replacement time is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of auxiliary tooling, and in particular to a rapid switching system for assembly tooling. Background Art

[0002] The process of assembling standard parts to large workpieces to be assembled, such as die castings, cannot be separated from the assembly tooling. When a die casting is assembled with standard parts, it is necessary to replace the die casting with the assembled standard parts by a crane or forklift, so as to replace another die casting to be assembled with the assembly tooling, and then assemble the standard parts. Due to the large size and complex structure of the crane or forklift, it is easy to have a large safety hazard.

[0003] Each die-casting usually has a different model. When another die-casting of a different model is replaced in the assembly tool, it is necessary not only to repeatedly adjust the placement of the other die-casting by crane or forklift, but also to adjust the positioning accuracy of the assembly tool accordingly, which increases labor costs. In addition, the method of replacing die-castings by crane or forklift will also greatly increase the replacement time of die-castings and reduce production efficiency. Summary of the invention

[0004] The present application provides a rapid switching system for assembly tooling, which can greatly shorten the replacement time of workpieces to be assembled, thereby improving production efficiency.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] On the one hand, the present application provides an assembly tool rapid switching system, comprising:

[0007] A precise positioning mechanism and a trolley loaded with workpieces to be assembled; the precise positioning mechanism is fixedly arranged at a preset position; the trolley has a first state and a second state; in the first state, the trolley is configured to cooperate with the precise positioning mechanism so that the workpieces to be assembled are in a state to be assembled; in the second state, the trolley is configured to be separable from the precise positioning mechanism so that the trolley loaded with the workpieces to be assembled is in a state to be switched.

[0008] Optionally, the trolley includes a body, a plurality of first columns and a plurality of second columns spaced apart from the body; the plurality of first columns are provided with positioning surfaces for fitting with the workpieces to be assembled, and the plurality of second columns are provided with positioning members for positioning and cooperating with the workpieces to be assembled.

[0009] Optionally, the trolley further comprises a first clamping cylinder fixedly arranged on the plurality of first columns; a first clamping block for pressing the workpiece to be assembled onto the positioning surface is installed at the output end of the first clamping cylinder.

[0010] Optionally, the precise positioning mechanism includes a main body, a first positioning portion and a second positioning portion arranged on the main body; the trolley includes a body, a first positioning matching portion and a second positioning matching portion arranged on the body; when the trolley moves from the second state to the first state, the first positioning matching portion is positioned and matched with the first positioning portion along the moving direction of the trolley, and the second positioning matching portion is positioned and matched with the second positioning portion along the first direction; the first direction is located in the movement plane of the trolley and is perpendicular to the moving direction of the trolley.

[0011] Optionally, the second positioning portion includes a first roller; the first roller includes a first rotation axis arranged perpendicular to the movement plane of the trolley and a first roller surface arranged around the first rotation axis; the trolley includes a guide member arranged on the vehicle body and extending along the moving direction of the trolley; the first surface of the guide member serves as the second positioning matching portion and contacts with the first roller surface.

[0012] Optionally, the precise positioning mechanism also includes a third positioning portion arranged on the main body, and the trolley also includes a third positioning matching portion arranged on the body; when the trolley moves from the second state to the first state, the third positioning matching portion is positioned and matched with the third positioning portion along a second direction perpendicular to the movement plane.

[0013] Optionally, the third positioning portion includes a second roller; the second roller and the first roller are located on the same side of the main body; the second roller includes a second rotation axis arranged parallel to the movement plane of the trolley and a second roller surface arranged around the second rotation axis; the guide member includes a second surface arranged adjacent to the first surface; the second surface serves as the third positioning matching portion and contacts with the second roller surface.

[0014] Optionally, the second positioning portion includes a plurality of the first rollers spaced apart along the moving direction of the trolley; the third positioning portion includes a plurality of the second rollers spaced apart along the moving direction of the trolley; and the plurality of the first rollers and the plurality of the second rollers are staggered.

[0015] Optionally, the first positioning portion includes a positioning block arranged on the main body; the first positioning matching portion includes a positioning matching surface arranged on the vehicle body, which is used to fit with the positioning block in the moving direction of the trolley; the precise positioning mechanism also includes a second clamping cylinder fixedly arranged on the main body; the output end of the second clamping cylinder is equipped with a second clamping block for pressing the vehicle body to the main body in the moving direction of the trolley.

[0016] Optionally, the precise positioning mechanism further includes a plurality of proximity switch sensors disposed on the main body; when the trolley moves close to the plurality of proximity switch sensors, different arrangements and combinations of the plurality of proximity switch sensors can correspondingly detect different models of the trolley.

[0017] The technical solution provided by this application can achieve the following beneficial effects:

[0018] The present application provides a rapid switching system for assembly tooling, which can quickly realize the replacement of workpieces to be assembled by manually pushing each trolley loaded with different workpieces to be assembled into cooperation with a precise positioning mechanism, thereby greatly shortening the replacement time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an assembly tool rapid switching system shown in an exemplary embodiment of the present application, in which the trolley is in a first state and cooperates with a precise positioning mechanism.

[0020] Figure 2 It is a structural schematic diagram of a precise positioning mechanism shown in an exemplary embodiment of the present application.

[0021] Figure 3 It is a structural schematic diagram of an exemplary embodiment of the present application showing a trolley without being loaded with workpieces to be assembled.

[0022] Figure 4 It is another structural schematic diagram of an exemplary embodiment of the present application showing a trolley without being loaded with workpieces to be assembled.

[0023] Figure 5 It is a structural front view of an assembly tool quick switching system shown in an exemplary embodiment of the present application, in which the trolley is in a first state and cooperates with the precise positioning mechanism.

[0024] Figure 6 yes Figure 5 A magnified view of the structure at A.

[0025] Reference numerals: 1. precise positioning mechanism; 10. body; 11. first roller; 111. first rotating shaft; 112. first roller surface; 12. second roller; 121. second rotating shaft; 122. second roller surface; 13. second pressing cylinder; 14. second pressing block; 15. proximity switch sensor; 16. guide member; 161. guide body; 162. guide folding edge; 17. positioning block; 18. mounting frame; 2. trolley; 2 0. Vehicle body; 21. First pillar; 22. Second pillar; 23. Positioning surface; 24. Positioning member; 25. First clamping cylinder; 26. First clamping block; 27. Guide member; 271. First surface; 272. Second surface; 2721. Positioning groove; 2722. First part; 2723. Second part; 28. Handle; 29. ​​Wheel; 30. Pin; 31. Positioning mating surface; 100. Assembly tooling quick switching system. DETAILED DESCRIPTION

[0026] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments are only to present the concept of the present application and do not represent all implementations under the concept of the present application. Instead, they are only examples of devices and methods consistent with some aspects of the concept of the present application.

[0027] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two and more than two. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" are included, and the elements or objects listed after "include" or "include" and their equivalent elements or objects are included. Other elements or objects are not excluded in this application. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0028] See also Figures 1 to 3The present application discloses a fast switching system 100 for assembly tooling, comprising a precise positioning mechanism 1 and a trolley 2 loaded with a workpiece to be assembled. The precise positioning mechanism 1 is fixedly arranged at a preset position; the trolley 2 has a first state and a second state; in the first state, the trolley 2 is configured to cooperate with the precise positioning mechanism 1 so that the workpiece to be assembled (not shown in the figure) is in a state to be assembled; in the second state, the trolley 2 is configured to be separated from the precise positioning mechanism 1 so that the trolley 2 loaded with the workpiece to be assembled is in a state to be switched.

[0029] Among them, the number of trolleys 2 can be multiple, and each trolley 2 can be loaded with different types of workpieces to be assembled. Then, by manually pushing each trolley 2 loaded with different workpieces to be assembled into the precise positioning mechanism 1, the replacement of the workpieces to be assembled can be quickly realized, which greatly shortens the replacement time and improves production efficiency. In this embodiment, since the workpieces to be assembled of different types have been pre-integrated and installed with the trolley 2, the positioning accuracy of the workpieces to be assembled is not affected by the size of the precise positioning mechanism 1 fixed at the preset position. Therefore, in the process of replacing the trolley 2, there is no need to repeatedly adjust the relative position of the workpieces to be assembled of different types relative to the precise positioning mechanism 1. Only one person needs to push the trolley 2 into the precise positioning mechanism 1 to complete the replacement of different types of workpieces to be assembled. As a result, the trolley 2 and the precise positioning mechanism 1 can be standardized and mass-produced, which greatly saves manpower and changeover time compared to the large-scale assembly tooling of traditional cranes or forklifts.

[0030] In one embodiment, the precise positioning mechanism 1 can be directly fixed on the ground; in another embodiment, Figure 2 As shown, the precise positioning mechanism 1 can be fixedly installed on the ground through the mounting frame 18. Of course, in other embodiments, the installation position of the precise positioning mechanism 1 is not limited to the ground.

[0031] It should be noted that the workpiece to be assembled can be a large die-casting part, such as a vehicle die-cast aluminum alloy body; or a large injection molded part. Of course, the specific structure of the workpiece to be assembled is not limited thereto.

[0032] See also Figure 3 In one embodiment, the trolley 2 includes a body 20, a plurality of first columns 21 and a plurality of second columns 22 arranged at intervals on the body 20; the plurality of first columns 21 are provided with positioning surfaces 23 for fitting with the workpiece to be assembled, and the plurality of second columns 22 are provided with positioning members 24 for positioning and cooperating with the workpiece to be assembled. Thus, by using the positioning surfaces 23 and the positioning members 24 in coordination, the workpiece to be assembled can be easily and accurately positioned on the trolley 2, and the structure is simple.

[0033] In one embodiment, the positioning surface 23 is the end surface of the first column 21 away from the vehicle body 20, and the workpiece to be assembled is in contact with the end surface; the positioning member 24 is a positioning pin provided on the end surface of the second column 22 away from the vehicle body 20, and the workpiece to be assembled is provided with a corresponding fixing hole to cooperate with the positioning pin for fixing. Therefore, compared with the larger positioning block structure in the traditional assembly tooling, the structure is compact, the cost is low, and it is easy to replace.

[0034] In one embodiment, the trolley 2 also includes a flexible block arranged on the positioning surface 23, and the workpiece to be assembled fits with the flexible block. Of course, in other embodiments, the second column 22 is also provided with a flexible block on the end face away from the vehicle body 20, and the positioning pin is fixedly arranged on the second column 22 and penetrates the flexible block. Therefore, when the size of different types of workpieces to be assembled does not vary much, the deformation size of the flexible block can be adjusted to meet the purpose of fine adjustment of the installation position of the workpiece to be assembled. It should be noted that the flexible block is a block structure made of flexible material, and the flexible material can be polyester, polyvinyl alcohol and other materials, but is not limited to this.

[0035] In one embodiment, a plurality of first columns 21 and a plurality of second columns 22 are all detachably fixedly connected to the vehicle body 20, for example, fixed by bolts. Thus, when the size of different types of workpieces to be assembled varies greatly, it is convenient to disassemble the first column 21 and the second column 22 in time, and to replace the installation positions of the first column 21 and the second column 22 in time, so that the positioning surface 23 and the positioning member 24 meet the positioning accuracy requirements of different types of workpieces to be assembled, and the versatility is strong. Of course, in other embodiments, the positioning surface 23 can also be designed separately from the first column 21, and the positioning member 24 can also be designed separately from the second column 22. For example, the positioning surface 23 is detachably fixedly connected to the first column 21 through a mounting bracket, and the positioning member 24 is detachably fixedly connected to the second column 22 through a mounting bracket. Thus, when the size of different types of workpieces to be assembled varies greatly, the positioning surface 23 and the positioning member 24 can meet the positioning accuracy requirements of different types of workpieces to be assembled by only adjusting the installation position of the mounting bracket. In the above scheme, there is no need to remake the entire trolley 2, which greatly reduces the production cost.

[0036] Of course, in other embodiments, the first columns 21 and the second columns 22 may be fixedly connected to the vehicle body 20 in an irremovable manner, such as by welding, etc. Of course, the first columns 21 and the second columns 22 may be integrally formed with the vehicle body 20.

[0037] Please note that Figure 3 and Figure 4, the number of the first pillars 21 can be 4, which are respectively located at the four corners of the vehicle body 20, and accordingly, the number of the positioning surfaces 23 is also 4; the number of the second pillars 22 can be 2, which are respectively located at the diagonal positions of the vehicle body 20, and accordingly, the number of the positioning members 24, such as positioning pins, is also 2. Of course, the number and installation positions of the first pillars 21 and the second pillars 22 are not limited thereto and can be adjusted arbitrarily according to actual assembly requirements.

[0038] See also Figure 4 In one embodiment, the trolley 2 further includes a first clamping cylinder 25 fixedly disposed on the plurality of first columns 21; the output end of the first clamping cylinder 25 is provided with a first clamping block 26 for pressing the workpiece to be assembled onto the positioning surface 23. Thus, when the workpiece to be assembled (not shown in the figure) is fitted with the positioning surface 23, the first clamping block 26 is driven by the first clamping cylinder 25 to press the workpiece to be assembled, so that the workpiece to be assembled is tightly pressed onto the positioning surface 23, so as to prevent the workpiece to be assembled from being misaligned during the process of assembling standard parts, thereby affecting the assembly efficiency of standard parts. It is understandable that after the workpiece to be assembled is assembled, it should be located between the positioning surface 23 and the first clamping block 26.

[0039] It should be noted that the number of the first pressing cylinders 25 and the first pressing blocks 26 should correspond to the number of the positioning surfaces 23. In other words, after each positioning surface 23 is fitted with the workpiece to be assembled, it is necessary to use a first pressing cylinder 25 and a first pressing block 26 for pressing. For example, when the number of the positioning surfaces 23 is 4, the number of the first pressing cylinders 25 and the first pressing blocks 26 should also be 4.

[0040] Please continue reading Figure 2 In one embodiment, the precise positioning mechanism 1 includes a body 10, a first positioning portion and a second positioning portion provided on the body 10; the trolley 2 includes a first positioning matching portion and a second positioning matching portion provided on the body 20; when the trolley 2 moves from the second state to the first state, the first positioning matching portion is positioned and matched with the first positioning portion along the moving direction of the trolley 2, and the second positioning matching portion is positioned and matched with the second positioning portion along the first direction; the first direction is located in the moving plane of the trolley 2 and is perpendicular to the moving direction of the trolley 2. Thus, the first positioning portion can fix the trolley 2 in the moving direction of the trolley 2, and the second positioning portion can fix the trolley 2 in the first direction perpendicular to the moving direction of the trolley 2, so as to prevent the position of the trolley 2 from deviating from the precise positioning mechanism 1.

[0041] like Figure 1 and Figure 2As shown, when the trolley 2 moves from the second state to the first state, the moving direction of the trolley 2 is the forward direction relative to the main body 10, the first direction is the left or right direction relative to the main body 10, and the second direction is the downward direction relative to the main body 10.

[0042] Please continue reading Figures 1 to 3 In one embodiment, the first positioning portion includes a positioning block 17 disposed on the main body 10; the first positioning matching portion includes a positioning matching surface 31 disposed on the vehicle body 20, which is used to fit with the positioning block 17 in the moving direction of the trolley 2; the precise positioning mechanism 1 also includes a second clamping cylinder 13 fixedly disposed on the main body 10; the output end of the second clamping cylinder 13 is installed with a second clamping block 14 for pressing the vehicle body 20 against the main body 10 in the moving direction of the trolley 2. Therefore, when the trolley 2 is moved into position, the second clamping cylinder 13 can be used to drive the second clamping block 14 to clamp the trolley 2 to prevent the trolley 2 from moving in the moving direction. Figure 2 In one embodiment, the positioning block 17 can be detachably fixedly connected to the body 10 through a mounting bracket. Thus, it is convenient to change the installation position of the positioning block 17 at any time to meet the different requirements of positioning accuracy for different types of workpieces to be assembled.

[0043] It should be noted that there are two positioning blocks 17, which are spaced apart at the front of the body 10. Correspondingly, there are two positioning mating surfaces 31, which are spaced apart at the front of the vehicle body 20. Of course, the number of positioning blocks 17 and positioning mating surfaces 31 is not limited thereto, and may be, for example, 3, 4 or even more.

[0044] See also Figure 2 , Figure 5 and Figure 6 In one embodiment, the second positioning portion includes a first roller 11; the first roller 11 includes a first rotation axis 111 arranged perpendicular to the moving plane of the trolley 2 and a first roller surface 112 arranged around the first rotation axis 111; the trolley 2 includes a guide member 27 arranged on the vehicle body 20 and extending along the moving direction of the trolley 2; the first surface 271 of the guide member 27 serves as the second positioning matching portion and contacts the first roller surface 112. Thus, the first roller 11 can not only position the trolley 2 in the first direction, but also, since the first roller surface 112 contacts the first surface 271 of the guide member 27, during the movement of the trolley 2, the first roller 11 can greatly reduce the friction during the movement of the trolley 2, so that the trolley 2 can be easily pushed into the precise positioning mechanism 1.

[0045] It should be noted that the number of the first rollers 11 can be multiple, evenly distributed on the opposite sides of the body 10 along the first direction, and arranged in a mirror image, so as to fix the trolley 2 in both the left and right directions relative to the body 10. Among them, the number of the first rollers 11 can be 8, and the body 10 is respectively provided with 4 first rollers 11 on the opposite sides along the first direction. Of course, it is not limited to this, for example, the number of the first rollers 11 can also be 4, 6 or even more.

[0046] In one embodiment, the precise positioning mechanism 1 further includes a third positioning portion provided on the body 10, and the trolley 2 further includes a third positioning matching portion provided on the body 20; when the trolley 2 moves from the second state to the first state, the third positioning matching portion is positioned and matched with the third positioning portion along a second direction perpendicular to the motion plane. Thus, the third positioning portion can fix the trolley 2 in the second direction, preventing the trolley 2 from moving in the third direction.

[0047] Please continue reading Figure 2 , Figure 5 and Figure 6 In one embodiment, the third positioning portion includes a second roller 12; the second roller 12 and the first roller 11 are located on the same side of the body 10; the second roller 12 includes a second rotation axis 121 arranged parallel to the motion plane of the trolley 2 and a second roller surface 122 arranged around the second rotation axis 121; the guide 27 includes a second surface 272 arranged adjacent to the first surface 271; the second surface 272, as the third positioning matching portion, contacts the second roller surface 122. Thus, the second roller 12 can not only position the trolley 2 in the second direction, but also can lift the body 20 of the trolley 2 during the movement of the trolley 2; since the second roller surface 122 can contact the second surface 272 of the guide 27, along with the rotation of the second roller 12, it can assist the movement of the trolley 2, greatly reduce the friction during the movement of the trolley 2, and enable the trolley 2 to be easily pushed into the precise positioning mechanism 1.

[0048] It should be noted that the number of the second rollers 12 can be multiple, for example, 6, evenly distributed on two opposite sides of the body 10 along the first direction. Of course, the number of the first rollers 11 is not limited thereto, for example, it can be 4, 8 or even more.

[0049] See also Figure 2In one embodiment, the second positioning portion includes a plurality of the first rollers 11 spaced apart along the moving direction of the trolley 2; the third positioning portion includes a plurality of the second rollers 12 spaced apart along the moving direction of the trolley 2; the plurality of the first rollers 11 and the plurality of the second rollers 12 are staggered. Thus, the guide member 27 provided on the body 20 of the trolley 2 can first contact with one of the first roller 11 and the second roller 12 to reduce the matching accuracy of the guide member 27; and avoid contacting with the first roller 11 and the second roller 12 at the same time, resulting in excessive matching accuracy and affecting the matching efficiency. In one embodiment, the guide member 27 provided on the body 20 of the trolley 2 can first contact with the second roller 12 to lift the body 20 of the trolley 2, and then as the trolley 2 moves forward, the guide member 27 gradually contacts with the first roller 11.

[0050] See also Figure 5 and Figure 6 In one embodiment, the guide member 27 includes a first surface 271 extending in the up-down direction and a second surface 272 extending in the left-right direction. The second surface 272 is provided with a positioning groove 2721, and the second roller surface 122 of the second roller 12 contacts the positioning groove 2721 to prevent the guide member 27 from being misaligned with the second roller 12 during movement. In one embodiment, the positioning groove 2721 separates the second surface 272 into a first portion 2722 and a second portion 2723, wherein the second portion 2723 is located between the first roller 11 and the second roller 12, and the shortest straight-line distance between the first roller 11 and the second roller 12 gradually decreases from the back to the front. Thus, when the trolley 2 just moves to contact with the precise positioning mechanism 1, it can be ensured that the second portion 2723 can be more easily embedded between the first roller 11 and the second roller 12; and as the trolley 2 gradually moves forward, the second portion 2723 gradually fits with the first roller surface 112 of the first roller 11, thereby gradually improving the positioning accuracy.

[0051] It should be noted that the matching accuracy between the first positioning portion and the first positioning matching portion, the second positioning portion and the second positioning matching portion, and the third positioning portion and the third positioning matching portion should be within a certain threshold range, such as ±0.05mm, to ensure more accurate positioning.

[0052] See also Figure 1 and Figure 2 In one embodiment, the precise positioning mechanism 1 further comprises a plurality of proximity switch sensors 15 disposed on the body 10; when the trolley 2 moves close to the plurality of proximity switch sensors 15, different arrangements and combinations of the plurality of proximity switch sensors 15 can detect trolleys of different models accordingly. Thus, it is possible to avoid trolleys 2 of different models being pushed in incorrectly.

[0053] The proximity switch sensor 15 is a sensor device that can detect the approach or distance of an object. It can sense the existence of an object through electromagnetic, photoelectric and other principles, thereby outputting a corresponding signal. When different pins 30 of the car 2 enter the sensor's detectable range, the circuit inside the proximity switch sensor 15 will change, thereby generating a corresponding output signal to identify the type of the car 2.

[0054] For example, the number of proximity switch sensors 15 can be arranged side by side in multiple numbers, for example, two. Both proximity switch sensors 15 are arranged at the front position of the body 10; accordingly, two pins 30 are arranged side by side at the front position of the body 20 of the trolley 2. When the first proximity switch sensor 15 and the second proximity switch sensor 15 correspond to the first pin 30 and the second pin 30 of the trolley 2, respectively, a specific model of the trolley 2 can be detected. When the next trolley 2 is pushed in, if at least one of the first proximity switch sensor 15 and the second proximity switch sensor 15 does not sense the first pin 30 and / or the second pin 30, it means that the model of the trolley 2 is wrong.

[0055] The pin 30 may be a metal object or a non-metal object. If the pin 30 is a metal object, the working principle of an inductive proximity switch or a capacitive proximity switch may be used. If the pin 30 is a non-metal object, the working principle of a capacitive proximity switch may also be used.

[0056] It should be noted that the number of the proximity switch sensors 15 may be 3, 4 or even more. Accordingly, the number of the pins 30 provided on the vehicle body 20 may be 3, 4 or even more. A plurality of proximity switch sensors 15 may be provided on opposite sides of the front of the body 10, and a plurality of pins 30 may be provided on opposite sides of the front of the vehicle body 20. In addition, since the working principles of the proximity switch sensors 15 are all existing known technologies, no further elaboration is made here.

[0057] Please continue reading Figures 1 to 3 In one embodiment, the trolley 2 includes a plurality of wheels 29 disposed on the vehicle body 20; the precise positioning mechanism 1 also includes two guide members 16, which are respectively disposed on opposite sides of the body 10 along the first direction and are spaced apart from the body 10. Thus, the wheels 29 of the trolley 2 can move forward smoothly under the action of the guide members 16. In one embodiment, the guide member 16 includes a guide body 161 extending along the moving direction of the trolley 2 and a guide fold 162 gradually bent outward and extending from the rear of the guide body 161 in a direction away from the body 10. Thus, the wheels 29 can first move forward under the guiding action of the guide fold 162, and then the wheels 29 gradually cooperate with the guide body 161 to further achieve the guiding action.

[0058] Please continue reading Figure 3 In one embodiment, the trolley 2 further includes a handle portion 28 disposed at the front or rear position of the trolley body 20 to facilitate manual pulling or pushing of the trolley 2.

[0059] In one embodiment, the trolley 2 and the air pipe and cable of the precise positioning mechanism 1 can be connected by a quick-connect connector to facilitate the replacement of the trolley 2.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A fast switching system for assembly tooling, characterized in that: include: Precision positioning mechanism and trolley loaded with workpieces to be assembled; The precise positioning mechanism is fixedly arranged at a preset position; The trolley has a first state and a second state; in the first state, the trolley is configured to cooperate with the precise positioning mechanism so that the workpiece to be assembled is in a state to be assembled; In the second state, the trolley is configured to be separable from the precise positioning mechanism, so that the trolley loaded with the workpiece to be assembled is in a waiting state.

2. The assembly tooling rapid switching system according to claim 1, characterized in that: The trolley comprises a vehicle body, a plurality of first columns and a plurality of second columns spaced apart from the vehicle body; the plurality of first columns are provided with positioning surfaces for fitting with the workpieces to be assembled, and the plurality of second columns are provided with positioning members for positioning and cooperating with the workpieces to be assembled.

3. The assembly tooling rapid switching system according to claim 2, characterized in that: The trolley also includes a first clamping cylinder fixedly arranged on the plurality of first columns; a first clamping block for pressing the workpiece to be assembled onto the positioning surface is installed at the output end of the first clamping cylinder.

4. The assembly tooling rapid switching system according to claim 1, characterized in that: The precise positioning mechanism includes a main body, a first positioning portion and a second positioning portion arranged on the main body; the trolley includes a body, a first positioning matching portion and a second positioning matching portion arranged on the body; when the trolley moves from the second state to the first state, the first positioning matching portion is positioned and matched with the first positioning portion along the moving direction of the trolley, and the second positioning matching portion is positioned and matched with the second positioning portion along the first direction; the first direction is located in the movement plane of the trolley and is perpendicular to the moving direction of the trolley.

5. The assembly tooling rapid switching system according to claim 4, characterized in that: The second positioning portion includes a first roller; the first roller includes a first rotation axis arranged perpendicular to the movement plane of the trolley and a first roller surface arranged around the first rotation axis; the trolley includes a guide member arranged on the vehicle body and extending along the moving direction of the trolley; the first surface of the guide member serves as the second positioning matching portion and contacts with the first roller surface.

6. The assembly tool rapid switching system according to claim 5, characterized in that: The precise positioning mechanism also includes a third positioning portion arranged on the main body, and the trolley also includes a third positioning matching portion arranged on the body; when the trolley moves from the second state to the first state, the third positioning matching portion is positioned and matched with the third positioning portion along a second direction perpendicular to the movement plane.

7. The assembly tooling rapid switching system according to claim 6, characterized in that: The third positioning portion includes a second roller; the second roller and the first roller are located on the same side of the body; the second roller includes a second rotation axis arranged parallel to the movement plane of the trolley and a second roller surface arranged around the second rotation axis; the guide member includes a second surface arranged adjacent to the first surface; the second surface serves as the third positioning matching portion and contacts with the second roller surface.

8. The assembly tool rapid switching system according to claim 7, characterized in that: The second positioning portion includes a plurality of the first rollers arranged at intervals along the moving direction of the trolley; the third positioning portion includes a plurality of the second rollers arranged at intervals along the moving direction of the trolley; the plurality of the first rollers and the plurality of the second rollers are staggered.

9. The assembly tool rapid switching system according to claim 4, characterized in that: The first positioning portion includes a positioning block arranged on the main body; the first positioning matching portion includes a positioning matching surface arranged on the vehicle body, which is used to fit with the positioning block in the moving direction of the trolley; the precise positioning mechanism also includes a second clamping cylinder fixedly arranged on the main body; the output end of the second clamping cylinder is equipped with a second clamping block for pressing the vehicle body to the main body in the moving direction of the trolley.

10. The assembly tool rapid switching system according to claim 4, characterized in that: The precise positioning mechanism also includes a plurality of proximity switch sensors arranged on the main body; when the trolley moves close to the plurality of proximity switch sensors, different arrangements and combinations of the plurality of proximity switch sensors can detect different models of the trolley accordingly.

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