Positioning tool and chassis riveting device

Abstract

The utility model provides a positioning tool and a chassis riveting device which are used for positioning a workpiece. At least two positioning through holes with different orientations and / or sizes are formed in the side edge of the workpiece; the positioning tool comprises a positioning assembly, the positioning assembly comprises a positioning pin seat and a positioning pin, the bottom of the positioning pin is fixed in the positioning pin seat, and when a workpiece is installed and fixed, the positioning through hole is correspondingly inserted into the top of the positioning pin. The different positioning through holes in the workpiece are positioned through the positioning assembly, it is ensured that the workpiece is placed in the correct direction, the workpiece is prevented from being reversely arranged, and the positioning accuracy and positioning efficiency of the workpiece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning of workpieces during installation, in particular to a positioning tool and a chassis riveting device. Background Art

[0002] During the workpiece assembly process, the workpiece must be installed in the production line or base in the correct direction or orientation before the next step of workpiece assembly and processing can proceed. To facilitate workpiece installation, it is usually necessary to provide positioning holes in the workpiece, and tighten the positioning holes by fixing the workpiece in place by screws.

[0003] In existing workpiece assembly techniques, such as riveting the chassis of an appliance like an air conditioner, the base footing must be placed within the chassis. Due to its flat structure, the base footing can easily become reversed during placement, affecting the final assembly. Therefore, manual inspection is required after the base footing assembly process to prevent reversed placement and prevent chassis assembly quality issues.

[0004] Therefore, the existing positioning tooling cannot achieve the fool-proofing function during the production process, seriously affecting the assembly efficiency and assembly accuracy of the chassis components. Utility Model Content

[0005] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide a positioning tool, which ensures the correct installation direction of the workpiece through at least two different positioning through holes and at least one adaptive positioning component, avoids the workpiece from being reversed, and improves the positioning accuracy and positioning efficiency of the workpiece.

[0006] A positioning tool is used to position a workpiece; the side of the workpiece is provided with at least two positioning through holes with different orientations and / or sizes;

[0007] The positioning tooling includes a positioning assembly, which includes a positioning pin seat and a positioning pin. The bottom of the positioning pin is fixed in the positioning pin seat, and the positioning pin has the same orientation and size as one of the positioning through holes. When the workpiece is installed and fixed, the positioning through hole is correspondingly plugged into the top of the positioning pin.

[0008] In this application, the positioning pin can only be adapted and plugged into the matching positioning through hole in the workpiece when the workpiece is placed on the front side. If the workpiece is placed on the back side, the positioning through hole in the workpiece cannot be adapted and plugged into the matching positioning pin. This application ensures the correct installation direction of the workpiece through at least two different positioning through holes and at least one matching positioning component to avoid the workpiece being reversed, which affects the further assembly and processing of the workpiece. The positioning tooling structure of this application is simple, has a wide range of applications, and is easy to assemble and disassemble.

[0009] In a better technical solution of the present invention, a guide limit portion is provided on the top of the positioning pin, the guide limit portion is a conical structure, and the cross-sectional area of ​​the guide limit portion close to the positioning pin seat is larger than the cross-sectional area of ​​the side away from the positioning pin seat.

[0010] In this application, the locating pin is used to fit and plug into the locating through hole in the workpiece. At the same time, the locating pin needs to be fixed at the side of the production line or processing device first, so that the workpiece can be positioned and installed at the side of the production line or processing device. Correspondingly, this application fixes the bottom of the locating pin in the locating pin seat, and sets the positioning of the locating pin to a conical structure. The conical structure design can facilitate the workpiece to be placed downward from the top of the locating pin, and when the workpiece is placed from top to bottom, the conical guide limit part in the locating pin can play a guiding role, ensuring that the workpiece is stably placed at the locating pin position, thereby improving the efficiency of the workpiece positioning and placement, and avoiding collision and wear on the locating pin and the workpiece.

[0011] In a preferred technical solution of the present invention, a cylindrical fixing portion is provided at the bottom of the positioning pin, and a fixing pin hole adapted to the fixing portion is provided in the positioning pin seat.

[0012] In practice, the fixing portion can also be designed in any other shape, as long as the shape of the fixing portion matches the shape of the fixing pin hole in the positioning pin holder. In this embodiment, the cylindrical fixing portion and the fixing pin hole are provided to facilitate the insertion and assembly between the fixing portion and the fixing pin hole, making the positioning pin and the positioning pin holder easy to disassemble and assemble.

[0013] In a preferred technical solution of the present invention, the positioning assembly further includes a positioning block, the positioning pin seat is fixed in the positioning block, and the positioning block is fixed to the side of the assembly station.

[0014] In this application, after the locating pin and locating pin holder are assembled, they are fixed to the side of the production line using a locating block. The production line here can be a production line for processing workpieces, or an assembly station for assembling workpieces, etc. The locating pin and locating pin holder are relatively small in size. By installing a larger locating block, the position of the locating pin and locating pin holder can be ensured, thereby improving the positioning accuracy of the workpiece.

[0015] In a better technical solution of the present invention, a U-shaped groove is provided on the side of the positioning block close to the production line, the positioning pin seat is fixed inside the U-shaped groove, and a fixing plate is provided on the side of the positioning block away from the production line, and the fixing plate is fixed to the side of the assembly station by fasteners.

[0016] The front end of the positioning block of the present application is provided with a U-shaped groove. The design of the U-shaped groove can accommodate the positioning pin seat and the positioning pin, and at the same time, it can form an avoidance space on the side of the workpiece to avoid interference between the positioning component and the workpiece. At the same time, a fixed plate is provided on the side away from the workpiece. The fixed plate is used to fix the positioning block, the positioning pin seat and the positioning pin as a whole, and can be specifically fixed on the outside of the production line. When the production line is a production line for workpiece processing, the fixed plate is fixed on the outside of the production line, and the internal space of the U-shaped groove extends to the side position of the workpiece in the production line to achieve the positioning of the positioning through hole on the side of the workpiece. When the production line is an assembly position for workpiece assembly, the fixed plate is fixed on the outside of the assembly, and the internal space of the U-shaped groove extends to the position in the assembly position that coincides with the workpiece to achieve the positioning of the positioning through hole on the side of the workpiece.

[0017] In a preferred technical solution of the present invention, a first limiting hole is provided on the inner side wall of the U-shaped groove, a first fixing through hole adapted to the first limiting hole is provided in the positioning pin seat, and the first fixing through hole and the first limiting hole are fixed by fasteners.

[0018] The inner wall of the U-shaped groove of the present application is provided with a first limiting hole near one end of the fixed plate, and the first limiting hole does not need to pass through the inner wall of the U-shaped groove. A first fixing through-hole is provided in the positioning pin seat, and the first fixing through-hole passes through the positioning pin seat. In this embodiment, the fastener is a second fixing bolt, which passes through the first fixing through-hole in sequence and extends to the inside of the first limiting hole, thereby suspending the positioning pin seat in the inner side wall of the U-shaped groove. By setting the position of the first limiting hole, it can be ensured that the bottom of the positioning pin seat is higher than the bottom of the U-shaped groove, thereby realizing the suspended setting of the positioning pin seat.

[0019] In a preferred technical solution of the present invention, a second fixing through hole is provided in the fixing plate, a second limiting hole is provided on the side of the production line, and the second limiting hole and the second fixing through hole are fixed by fasteners.

[0020] In this application, the second fixing through-hole is a through-hole that passes through the fixing plate in the vertical direction. Bolts and other fasteners pass through the second fixing through-hole in sequence from top to bottom and extend into the interior of the second limiting hole to fix the fixing plate and, in turn, the entire positioning assembly. When the positioning assembly is fixed, a positioning pin seat is suspended in the U-shaped groove of the positioning block. A positioning pin is provided in the positioning pin seat. The bottoms of the positioning pin seat and the positioning pin are both higher than the transmission line or assembly station surface in the production line. The positioning pin can be used to position and install the workpiece.

[0021] In a preferred technical solution of the present invention, two positioning through holes with different directions are respectively provided on both sides of the workpiece, and there are one or two positioning components, and the two positioning components are respectively located on opposite sides of the production line.

[0022] When there are two positioning components in this application, the two positioning components can be installed on both sides of the production line, that is, the two positioning pins correspond to the two positioning holes at both ends of the workpiece. The positioning components installed on both sides of the production line can fully utilize the space outside the production line, avoiding redundancy on the same side of the production line and affecting the normal operation of the production line. When there is only one positioning component in this application, one positioning component can be installed on the side corresponding to the front of the workpiece in the production line to ensure that the positioning holes and positioning pins cannot be adapted when the workpiece is placed on the back.

[0023] In a preferred technical solution of the present invention, an in-position sensor for detecting whether the workpiece is installed in place is also included. The in-position sensor is located on the side of the production line or in the positioning component.

[0024] In the present application, the in-place sensor may include a transmitter and a receiver, and the transmitter and the receiver are arranged relative to each other. When the workpiece is placed in the production line, the transmitter and the receiver are just facing the workpiece. At this time, the signal from the transmitter cannot be received by the receiver, and it can be judged that the loading of the workpiece is completed. When the workpiece is not placed in the production line, the signal emitted by the transmitter can be received by the receiver, and it can be judged that the loading of the workpiece is not completed. In actual operation, the in-place sensor can be set on the side of the production line, or integrated with the positioning block, or set in the vertical direction, etc. It is only necessary to define the correct loading position of the workpiece first, and then install the receiving end and the transmitter of the in-place sensor corresponding to the upper and lower, left and right, or front and back of the position. In this way, after the positioning pin realizes the calibration of the workpiece orientation, the in-place sensor can further avoid the abnormality of missing the workpiece, thereby achieving the purpose of accurate correction of the workpiece orientation and avoiding the missing of the workpiece in the present application.

[0025] A second object of the present application is to provide a chassis riveting device, including a positioning tool as described above.

[0026] The chassis of this application needs to be positioned and riveted to the base. When the base is placed in the chassis, the positional relationship between the positioning holes in at least two bases and the positioning pins that match one of the positioning holes can ensure that the base is placed positively, thereby achieving a fool-proof effect on the loading of the base and avoiding abnormal chassis assembly.

[0027] The beneficial effects of the utility model are:

[0028] The utility model provides a positioning tool for positioning a workpiece; the side of the workpiece is provided with at least two positioning holes with different orientations and / or sizes; correspondingly, the positioning tool includes a positioning assembly, the positioning assembly includes a positioning pin seat and a positioning pin, the bottom of the positioning pin is fixed in the positioning pin seat, and when the workpiece is installed and fixed, the positioning hole is correspondingly plugged into the top of the positioning pin. In this application, only when the workpiece is placed on the front side can the positioning pin be plugged into the matching positioning hole in the workpiece. If the workpiece is placed on the back side, the positioning hole in the workpiece cannot be plugged into the matching positioning pin. This application ensures the correct installation direction of the workpiece through at least two different positioning holes and at least one matching positioning assembly, avoids the workpiece from being reversed, and affects the further assembly and processing of the workpiece. In addition, the positioning tool of this application has a simple structure, a wide range of applications, and is easy to assemble and disassemble.

[0029] The present application also provides a chassis riveting device, including the positioning tooling as described above. Specifically, the chassis needs to be positioned and riveted with the base foot. When the base foot is placed in the chassis, the positional relationship between the positioning through holes in at least two base feet and the positioning pins adapted to one of the positioning through holes ensures that the base foot is placed positively, thereby achieving a fool-proof effect on the loading of the base foot and avoiding abnormal chassis assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the overall structural diagram of the positioning block;

[0031] Figure 2 It is a top view of the positioning block;

[0032] Figure 3 Schematic diagram of the overall structure of the positioning pin seat;

[0033] Figure 4 It is a top view of the positioning pin seat;

[0034] Figure 5 Schematic diagram of the overall structure of the positioning pin;

[0035] Figure 6 is a side view of the positioning pin;

[0036] Figure 7 This is a schematic diagram of the assembly of the positioning component;

[0037] Figure 8 A side view of the positioning component;

[0038] Figure 9 A top view of the positioning assembly;

[0039] Figure 10 This is a schematic diagram of the positions of the two positioning components on both sides of the production line in Example 3;

[0040] Figure 11 This is a schematic diagram of the positions of the two positioning components on both sides of the production line in Example 4;

[0041] Figure 12 This is a schematic diagram of the positions of the two positioning components on the same side of the production line in Example 5.

[0042] Reference numerals:

[0043] 1. Locating pin; 11. Guide limiter; 12. Fixing part; 2. Locating pin seat; 21. First fixing through hole; 22. Fixing pin hole; 3. Locating block; 31. U-shaped groove; 32. Fixing plate; 33. First limiting hole; 34. Second fixing through hole; 4. In-position sensor; 5. Chassis; 6. Base foot; 71. First fixing bolt; 72. Second fixing bolt. DETAILED DESCRIPTION

[0044] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0045] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. As used in this utility model and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0046] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0047] Example 1

[0048] like Figures 1-9As shown, a positioning tool is used to position a workpiece; the side of the workpiece is provided with at least two positioning through holes with different orientations and / or sizes; the positioning tool includes a positioning assembly, the positioning assembly includes a positioning pin seat 2 and a positioning pin 1, the bottom of the positioning pin 1 is fixed in the positioning pin seat 2, and the positioning pin has the same orientation and size as one of the positioning through holes; when the workpiece is installed and fixed, the positioning through hole is correspondingly inserted into the top of the positioning pin 1.

[0049] In this application, the positioning pin 1 can only be adapted and plugged into the matching positioning through hole in the workpiece when the workpiece is placed on the front side. If the workpiece is placed on the back side, the positioning through hole in the workpiece cannot be adapted and plugged into the positioning pin 1. This application ensures the correct installation direction of the workpiece through at least two different positioning through holes and at least one matching positioning component to avoid the workpiece being reversed, which affects the further assembly and processing of the workpiece. The positioning tooling structure of this application is simple, has a wide range of applications, and is easy to assemble and disassemble.

[0050] In actual operation, the number of positioning holes can be greater than 2, and the positioning holes are asymmetrically arranged in the workpiece, that is, it is necessary to ensure that when the front of the workpiece is placed, the positioning holes in the workpiece can be plugged into the corresponding positioning pin 1, and when the back of the workpiece is placed, the positioning holes in the workpiece and the positioning pin 1 cannot be matched and plugged. Only in this way can the unique positioning of the front of the workpiece be achieved to avoid the workpiece being inverted.

[0051] In order to achieve the above-mentioned foolproof effect, the present application can set two or more positioning holes in the workpiece to have different sizes. In this way, only when the workpiece is placed on the front side can the positioning holes be ensured to be adapted and plugged into the corresponding positioning pins 1. Once the workpiece is placed on the back side, the positioning holes and the corresponding positioning pins 1 will be misaligned, making it impossible to align and install the workpiece.

[0052] Alternatively, the present application can also provide two or more positioning holes in the workpiece with different sizes, so that only when the workpiece is placed on the front side can the positioning holes be ensured to fit and plug into the corresponding positioning pins 1. Once the workpiece is placed on the back side, the positioning holes and the corresponding positioning pins 1 will be misaligned, making it impossible to align and install the workpiece.

[0053] In the present application, the number of positioning components can be one, or can correspond one-to-one to the number of positioning holes in the workpiece. When there is only one positioning component, since each positioning hole is different, the positioning pin in the positioning component can only be matched with one positioning hole and not with the other positioning holes. This ensures that the matching positioning hole is on the positioning pin only when the workpiece is placed correctly. If the workpiece is placed incorrectly, the matching positioning hole is not on the positioning pin, and the workpiece and the positioning pin cannot be assembled at this time, and the workpiece orientation needs to be adjusted.

[0054] When there are multiple positioning components, the fool-proofing principle is the same as above.

[0055] Example 2

[0056] like Figures 1-9 As shown, a positioning tool is used to position a workpiece; the side of the workpiece is provided with at least two positioning through holes with different orientations and / or sizes; the positioning tool includes a positioning assembly, the positioning assembly includes a positioning pin seat 2 and a positioning pin 1, the bottom of the positioning pin 1 is fixed in the positioning pin seat 2, and the positioning pin has the same orientation and size as one of the positioning through holes; when the workpiece is installed and fixed, the positioning through hole is correspondingly inserted into the top of the positioning pin 1.

[0057] This embodiment takes one of the positioning components as an example for detailed description. The structures of the other positioning components are similar, except that the orientation and size of the positioning pins 1 in the positioning components need to be adapted to the corresponding positioning through holes. The specific structure of one of the positioning components is described in detail below.

[0058] Specifically, a guide limit portion 11 is provided on the top of the positioning pin 1. The guide limit portion 11 is a conical structure, and the cross-sectional area of ​​the guide limit portion 11 close to the positioning pin seat 2 is larger than the cross-sectional area of ​​the guide limit portion 11 away from the positioning pin seat 2.

[0059] In this application, the locating pin 1 is used to adapt and plug into the locating through hole in the workpiece. At the same time, the locating pin 1 needs to be fixed at the side of the production line or processing device first, so that the workpiece can be positioned and installed at the side of the production line or processing device. Correspondingly, this application fixes the bottom of the locating pin 1 in the locating pin seat 2, and sets the positioning of the locating pin 1 to a conical structure. The conical structure design can facilitate the workpiece to be placed downward from the top of the locating pin 1, and when the workpiece is placed from top to bottom, the conical guide limit portion 11 in the locating pin 1 can play a guiding role, ensuring that the workpiece is stably placed at the position of the locating pin 1, thereby improving the efficiency of the workpiece positioning and placement, and avoiding collision and wear on the locating pin 1 and the workpiece.

[0060] Specifically, a cylindrical fixing portion 12 is provided at the bottom of the positioning pin 1 , and a fixing pin hole 22 adapted to the fixing portion 12 is provided in the positioning pin seat 2 .

[0061] In actual operation, the fixing portion 12 can also be designed into any other shape, and it is only necessary to adapt the shape of the fixing portion 12 to the shape of the fixing pin hole 22 in the positioning pin seat 2. In this embodiment, the cylindrical fixing portion 12 and the fixing pin hole 22 are provided to facilitate the insertion and assembly between the fixing portion 12 and the fixing pin hole 22, so that the positioning pin 1 and the positioning pin seat 2 are easy to disassemble and assemble.

[0062] In this embodiment, an internal thread can be provided in the fixing pin hole 22 and an external thread can be provided in the fixing portion 12. When the locating pin 1 and the locating pin seat 2 need to be assembled together, the assembly of the two can be achieved by assembling the matching internal thread and external thread.

[0063] In this embodiment, a fixing hole can also be provided at the bottom of the fixing portion 12, i.e., at the end of the fixing portion 12 away from the guide limit portion 11. When the positioning pin 1 and the positioning pin seat 2 need to be assembled together, the first fixing bolt 71 is inserted into the fixing hole to achieve the assembly of the positioning pin 1 and the positioning pin seat 2. At the same time, the first fixing nut at the end of the first fixing bolt 71 is larger than the inner diameter of the fixing hole. The first fixing nut cooperates with the first fixing bolt 71 and the fixing hole to achieve the fixation of the positioning pin 1 and the positioning pin seat 2.

[0064] In actual operation, the guide and limit portion 11 only serves to guide the positioning through-hole in the workpiece, and the fixing portion 12 is used to fix the positioning pin 1 in the positioning pin seat 2. After the workpiece is fixed, the positioning through-hole in the workpiece and the area between the guide and limit portion 11 and the fixing portion 12 are adapted. For example, if the positioning through-hole in the workpiece is a waist-shaped through-hole, the portion between the guide and limit portion 11 and the fixing portion 12 in the positioning pin 1 can be set to a shape and size that is adapted to the inner diameter of the waist-shaped through-hole. In this way, the guiding role of the guide and limit portion 11 for the positioning through-hole can be achieved, and a gap-free fit between the positioning pin 1 and the positioning through-hole can be ensured.

[0065] Furthermore, the positioning assembly further includes a positioning block 3, the positioning pin seat 2 is fixed in the positioning block 3, and the positioning block 3 is fixed to the side of the assembly station.

[0066] In this application, after assembling the locating pin 1 and the locating pin holder 2, they are fixed to the side of the production line via the locating block 3. The production line here can be a production line for processing workpieces, or an assembly position for assembling workpieces, etc. The locating pin 1 and the locating pin holder 2 are relatively small in size. By installing the larger locating block 3, the position of the locating pin 1 and the locating pin holder 2 can be ensured, thereby improving the positioning accuracy of the workpiece.

[0067] Furthermore, a U-shaped groove 31 is provided on the side of the positioning block 3 close to the production line, the positioning pin seat 2 is fixed inside the U-shaped groove 31, and a fixing plate 32 is provided on the side of the positioning block 3 away from the production line, and the fixing plate 32 is fixed to the side of the assembly station by fasteners.

[0068] The front end of the positioning block 3 of the present application is provided with a U-shaped groove 31. The design of the U-shaped groove 31 can accommodate the positioning pin seat 2 and the positioning pin 1, and at the same time, it can form an avoidance space on the side of the workpiece to avoid interference between the positioning component and the workpiece. At the same time, a fixed plate 32 is provided on the side away from the workpiece. The fixed plate 32 is used to fix the positioning block 3, the positioning pin seat 2 and the positioning pin 1 as a whole, and can be specifically fixed on the outside of the production line. When the production line is a production line for workpiece processing, the fixed plate 32 is fixed on the outside of the production line, and the internal space of the U-shaped groove 31 extends to the side position of the workpiece in the production line to achieve the positioning of the workpiece side positioning through hole. When the production line is an assembly position for workpiece assembly, the fixed plate 32 is fixed on the outside of the assembly, and the internal space of the U-shaped groove 31 extends to the position in the assembly position that coincides with the workpiece to achieve the positioning of the workpiece side positioning through hole.

[0069] It should be noted that the fixed plate 32 in the positioning block 3 in the present application is used to fix the entire positioning assembly. After the fixed plate 32 is fixed, the positioning pin seat 2 is suspended inside the U-shaped groove 31, and the positioning pin 1 is also suspended inside the U-shaped groove 31 and in the positioning pin seat 2. That is, in the overall structure of the positioning assembly, only the fixed plate 32 is in contact with the outside of the production line, and the positioning pin seat 2 and the positioning pin 1 do not contact the production line. This can ensure the normal placement, processing and assembly of the workpiece in the production line, and avoid interference between the positioning assembly and the workpiece.

[0070] Furthermore, a first limiting hole 33 is provided on the inner side wall of the U-shaped groove 31 , and a first fixing through hole 21 adapted to the first limiting hole 33 is provided in the positioning pin seat 2 , and the first fixing through hole 21 and the first limiting hole 33 are fixed by fasteners.

[0071] In the present application, a first limiting hole 33 is provided on the inner side wall of the U-shaped groove 31 near one end of the fixing plate 32. The first limiting hole 33 does not need to pass through the inner side wall of the U-shaped groove 31. A first fixing through hole 21 is provided in the positioning pin seat 2, and the first fixing through hole 21 passes through the positioning pin seat 2. In this embodiment, the fastener is a second fixing bolt 72, which passes through the first fixing through hole 21 in sequence and extends to the inside of the first limiting hole 33, so that the positioning pin seat 2 is suspended in the inner side wall of the U-shaped groove 31. By setting the position of the first limiting hole 33, it can be ensured that the bottom of the positioning pin seat 2 is higher than the bottom of the U-shaped groove 31, thereby realizing the suspended setting of the positioning pin seat 2.

[0072] In order to ensure the stability between the positioning pin seat 2 and the positioning block 3, the present application can set two first fixing through holes 21 at both ends of the positioning pin seat 2, and correspondingly, set two corresponding first limiting holes 33 on the inner side wall of the positioning block 3. By fixing the two ends of the positioning pin seat 2, stable assembly between the positioning pin seat 2 and the positioning block 3 can be achieved.

[0073] Furthermore, a second fixing through hole 34 is provided in the fixing plate 32, and a second limiting hole is provided on the side of the production line. The second limiting hole and the second fixing through hole 34 are fixed by fasteners.

[0074] In the present application, the second fixing through-hole 34 is a through-hole that passes through the fixing plate 32 in the vertical direction. Bolts and other fasteners pass through the second fixing through-hole 34 in sequence from top to bottom and extend into the interior of the second limiting hole to fix the fixing plate 32 and, in turn, fix the entire positioning assembly. When the positioning assembly is fixed, a positioning pin holder 2 is suspended in the U-shaped groove 31 of the positioning block 3. A positioning pin 1 is provided in the positioning pin holder 2. The bottoms of the positioning pin holder 2 and the positioning pin 1 are both higher than the transmission line or assembly station surface in the production line. The positioning pin 1 can be used to position and install the workpiece.

[0075] Furthermore, two positioning through holes with different directions are respectively provided on both sides of the workpiece, and the two positioning components are respectively located on opposite sides of the production line.

[0076] When two positioning assemblies are used in this application, they can be installed on either side of the production line, with the two positioning pins 1 corresponding to the two positioning holes at either end of the workpiece. Installing positioning assemblies on both sides of the production line allows for full utilization of the space outside the production line, avoiding redundancy on the same side of the production line that could affect normal operation.

[0077] Alternatively, two positioning assemblies can be installed on the same side of the production line, with the two positioning pins 1 facing different directions to correspond to two positioning holes of different orientations or sizes on the same side of the workpiece. Installing two positioning assemblies on the same side of the production line facilitates manual inspection or maintenance, as only the positioning assemblies on the same side of the production line need to be monitored and repaired.

[0078] Furthermore, the positioning tool also includes an in-position sensor 4 for detecting whether the workpiece is installed in place, and the in-position sensor 4 is located on the side of the production line or in the positioning component.

[0079] In the present application, the in-place sensor 4 may include a transmitter and a receiver, and the transmitter and the receiver are arranged relative to each other. When the workpiece is placed in the production line, the transmitter and the receiver are just facing the workpiece. At this time, the signal from the transmitter cannot be received by the receiver, and it can be determined that the loading of the workpiece is completed. When the workpiece is not placed in the production line, the signal emitted by the transmitter can be received by the receiver, and it can be determined that the loading of the workpiece is not completed. In actual operation, the in-place sensor 4 can be set on the side of the production line, or integrated with the positioning block 3, or set in the vertical direction, etc. It is only necessary to define the correct loading position of the workpiece first, and then install the receiving end and the transmitter of the in-place sensor 4 corresponding to the upper and lower, left and right, or front and back of the position. In this way, after the positioning pin 1 realizes the calibration of the workpiece orientation, the in-place sensor 4 can further avoid the abnormality of missing the workpiece, thereby achieving the purpose of accurately correcting the orientation of the workpiece and avoiding the missing of the workpiece in the present application.

[0080] Example 3

[0081] The present application provides a chassis riveting device for riveting a footing 6 to a chassis 5 to achieve assembly of the chassis 5. The chassis riveting device provided in this embodiment includes a positioning tool as described in Example 2.

[0082] Specifically, such as Figure 10 As shown, the positioning fixture includes two opposing positioning assemblies, each of which includes the positioning pin 1, positioning pin holder 2, and positioning block 3 described in Example 2. The specific structure and connection relationship of the positioning pin 1, positioning pin holder 2, and positioning block 3 are not described in detail. During assembly, the positioning block 3 is installed on the side of the assembly station, the positioning pin 1 and positioning pin holder 2 are fixed together, and finally, the positioning pin holder 2 is fixed in the positioning block 3, thereby forming two opposing positioning assemblies.

[0083] like Figure 11 As shown, two positioning through holes are respectively provided on both sides of the base foot 6 , both positioning through holes are waist-shaped through holes, and the center lines of the waist-shaped through holes in the two positioning through holes are perpendicular to each other.

[0084] This embodiment provides a chassis riveting device for riveting the base foot 6 to the chassis 5. In actual operation, the chassis 5 needs to be placed in the assembly station first, and then the base foot 6 is placed in the chassis 5 in the correct direction, and finally the riveting between the chassis 5 and the base foot 6 is achieved.

[0085] In this embodiment, two positioning holes are respectively provided on both sides of the base foot 6. Both positioning holes are waist-shaped holes, and the center lines of the waist-shaped holes in the two positioning holes are perpendicular to each other. Two positioning components are respectively provided on opposite sides of the assembly station, and the shape and orientation of the positioning pins 1 in the two positioning components are adapted to the positioning holes on both sides when the base foot 6 is placed frontally. In this way, after the chassis 5 is placed, during the placement of the base foot 6, the base foot 6 can only be placed frontally, and the positioning holes in the base foot 6 can be adapted and plugged with the positioning pins 1 in the two positioning components. If the base foot 6 is inverted, the positioning holes in the base foot 6 cannot be adapted and plugged with the positioning pins 1 in the two positioning components. At this time, the base foot 6 cannot be placed and needs to be inverted before it can be placed. This can achieve fool-proof loading of the base foot 6 and prevent the base foot 6 from being inverted, which affects the assembly efficiency of the chassis 5.

[0086] At the same time, if Figure 11 As shown, in this embodiment, two positioning components are provided on the left and right sides of the chassis 5, and position sensors 4 are provided on the front and rear sides of the chassis 5. Specifically, the transmitting end and the receiving end of the position sensor 4 are provided on the front and rear sides of the chassis 5, respectively, to detect whether the base 6 is placed in place. After the two positioning pins 1 have calibrated the orientation of the workpiece, the position sensor 4 can further avoid the abnormality of missing the workpiece, thereby achieving the purpose of accurately correcting the orientation of the workpiece and preventing the missing of the workpiece.

[0087] Example 4

[0088] The present application provides a chassis riveting device for riveting a footing 6 to a chassis 5 to achieve assembly of the chassis 5. The chassis riveting device provided in this embodiment includes a positioning tool as described in Example 2.

[0089] Specifically, such as Figure 11 As shown, the positioning fixture includes only one positioning assembly, which includes the positioning pin 1, positioning pin holder 2, and positioning block 3 described in Example 2. The specific structure and connection relationship of the positioning pin 1, positioning pin holder 2, and positioning block 3 are not described in detail. During assembly, the positioning block 3 is installed on the side of the assembly station, the positioning pin 1 and positioning pin holder 2 are fixed together, and finally the positioning pin holder 2 is fixed to the positioning block 3 to complete the positioning assembly.

[0090] Two positioning through holes are respectively provided on both sides of the base foot 6 . Both positioning through holes are waist-shaped through holes, and the center lines of the waist-shaped through holes in the two positioning through holes are perpendicular to each other.

[0091] This embodiment provides a chassis riveting device for riveting the base foot 6 to the chassis 5. In actual operation, the chassis 5 needs to be placed in the assembly station first, and then the base foot 6 is placed in the chassis 5 in the correct direction, and finally the riveting between the chassis 5 and the base foot 6 is achieved.

[0092] In this embodiment, two positioning holes are respectively provided on both sides of the base foot 6. Both positioning holes are waist-shaped holes, and the center lines of the waist-shaped holes in the two positioning holes are perpendicular to each other. Two positioning components are respectively provided on opposite sides of the assembly station, and the shape and orientation of the positioning pins 1 in the two positioning components are adapted to the positioning holes on both sides when the base foot 6 is placed frontally. In this way, after the chassis 5 is placed, during the process of placing the base foot 6, the base foot 6 can only be placed frontally, and the positioning hole in the base foot 6 that is adapted to the only positioning pin can be adapted and plugged with the positioning pin 1. If the base foot 6 is inverted, the positioning hole in the base foot 6 is inverted and cannot be adapted and plugged with the positioning pin 1 in the positioning component. At this time, the base foot 6 cannot be placed and needs to be inverted before it can be placed. This can achieve fool-proof loading of the base foot 6 and avoid the inversion of the base foot 6, which affects the assembly efficiency of the chassis 5.

[0093] Example 5

[0094] The present application provides a chassis riveting device for riveting a footing 6 to a chassis 5 to achieve assembly of the chassis 5. The chassis riveting device provided in this embodiment includes a positioning tool as described in Example 2.

[0095] Specifically, such as Figure 12 As shown, the positioning fixture includes positioning assemblies installed on the same side. Each positioning assembly includes the positioning pin 1, positioning pin holder 2, and positioning block 3 described in Example 2. The specific structure and connection relationship of the positioning pin 1, positioning pin holder 2, and positioning block 3 are not described in detail. During assembly, the positioning block 3 is installed on the side of the assembly station, the positioning pin 1 and positioning pin holder 2 are fixed together, and finally the positioning pin holder 2 is fixed in the positioning block 3, forming two opposing positioning assemblies.

[0096] Two positioning through holes are respectively provided on the same side of the base foot 6 . Both positioning through holes are waist-shaped through holes, and the center lines of the waist-shaped through holes in the two positioning through holes are perpendicular to each other.

[0097] This embodiment provides a chassis riveting device for riveting the base foot 6 to the chassis 5. In actual operation, the chassis 5 needs to be placed in the assembly station first, and then the base foot 6 is placed in the chassis 5 in the correct direction, and finally the riveting between the chassis 5 and the base foot 6 is achieved.

[0098] In this embodiment, two positioning holes are respectively provided on the same side of the base foot 6. Both positioning holes are waist-shaped holes, and the center lines of the waist-shaped holes in the two positioning holes are perpendicular to each other. Two positioning components are sequentially provided on the same side of the assembly station, and the shapes and orientations of the positioning pins 1 in the two positioning components are adapted to the positioning holes on both sides when the base foot 6 is placed frontally. In this way, after the chassis 5 is placed, during the process of placing the base foot 6, the base foot 6 can only be placed frontally, and the positioning holes in the base foot 6 can be adapted and plugged with the positioning pins 1 in the two positioning components. If the base foot 6 is inverted, the positioning holes in the base foot 6 cannot be adapted and plugged with the positioning pins 1 in the two positioning components. At this time, the base foot 6 cannot be placed and needs to be inverted before it can be placed. This can achieve fool-proof loading of the base foot 6 and avoid the inversion of the base foot 6, which affects the assembly efficiency of the chassis 5.

[0099] At the same time, if Figure 12 As shown, in this embodiment, two positioning components are arranged on the left or right side of the chassis 5, and position sensors 4 are arranged on the front and rear sides of the chassis 5. Specifically, the transmitting end and the receiving end of the position sensor 4 are respectively arranged on the front and rear sides of the chassis 5 to detect whether the base 6 is placed in place. After the two positioning pins 1 calibrate the direction of the workpiece, the position sensor 4 can further avoid the abnormality of missing the workpiece, thereby achieving the purpose of accurately correcting the direction of the workpiece and avoiding missing the workpiece.

[0100] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures. In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0101] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0102] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0103] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A positioning tool for positioning a workpiece; characterized in that: The side edge of the workpiece is provided with at least two positioning through holes with different orientations and / or sizes; The positioning tool comprises a positioning assembly, wherein the positioning assembly comprises a positioning pin seat (2) and a positioning pin (1), wherein the bottom of the positioning pin (1) is fixed in the positioning pin seat (2), and the positioning pin (1) has the same orientation and size as one of the positioning through holes; when the workpiece is installed and fixed, the positioning through hole is correspondingly plugged into the top of the positioning pin (1).

2. A positioning tool according to claim 1, characterized in that: A guide limit portion (11) is provided on the top of the positioning pin (1), and the cross-sectional area of ​​the guide limit portion (11) on the side close to the positioning pin seat (2) is larger than the cross-sectional area on the side away from the positioning pin seat (2).

3. A positioning tool according to claim 1, characterized in that: A cylindrical fixing portion (12) is provided at the bottom of the positioning pin (1), and a fixing pin hole (22) adapted to the fixing portion (12) is provided in the positioning pin seat (2).

4. A positioning tool according to claim 1, characterized in that: The positioning assembly further comprises a positioning block (3), the positioning pin seat (2) is fixed in the positioning block (3), and the positioning block (3) is fixed on the side of the assembly station.

5. A positioning tool according to claim 4, characterized in that: A U-shaped groove (31) is provided on the side of the positioning block (3) close to the production line, and the positioning pin seat (2) is fixed inside the U-shaped groove (31). A fixing plate (32) is provided on the side of the positioning block (3) away from the production line, and the fixing plate (32) is fixed to the side of the assembly station by fasteners.

6. A positioning tool according to claim 5, characterized in that: The inner side wall of the U-shaped groove (31) is provided with a first limiting hole (33), and the positioning pin seat (2) is provided with a first fixing through hole (21) adapted to the first limiting hole (33), and the first fixing through hole (21) and the first limiting hole (33) are fixed by a fastener.

7. A positioning tool according to claim 5, characterized in that: A second fixing through hole (34) is provided in the fixing plate (32), and a second limiting hole is provided on the side of the production line. The second limiting hole and the second fixing through hole (34) are fixed by fasteners.

8. A positioning tool according to claim 1, characterized in that: Two positioning through holes with different directions are respectively provided on both sides of the workpiece. There are one or two positioning components, and the two positioning components are respectively located on opposite sides of the production line.

9. A positioning tool according to claim 1, characterized in that: It also includes an on-position sensor (4) for detecting whether the workpiece is installed in place, and the on-position sensor (4) is located on the side of the production line or in the positioning component.

10. A chassis riveting device, characterized in that: A positioning tool comprising any one of claims 1 to 9.

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