Automatic pin riveting device

Abstract

The utility model discloses an automatic pin riveting device which comprises an upper mounting plate and a lower mounting plate which are horizontally arranged, the upper mounting plate is connected with an air cylinder enabling the upper mounting plate to do vertical linear motion, and the top of the lower mounting plate is provided with a product containing area used for containing products. A pressing head is vertically arranged at the bottom of the upper mounting plate corresponding to the position where a pin needs to be mounted on a product, a pin hole matched with the pin is vertically formed in the bottom of the pressing head, an air cavity communicated with the pin hole is formed in the pressing head, a vacuum pipeline communicated with the air cavity is arranged on the side portion of the pressing head, and the vacuum pipeline is connected with a vacuum generator and a negative pressure meter. According to the utility model, the riveting efficiency is high, the consistency of riveting depth is good, and the product yield can be ensured; besides, in the riveting process, the pin is adsorbed to the bottom of the pressure head through negative pressure generated by the vacuum generator, so that the pin is convenient to feed, the existence of the pin can be detected through the pressure change of the negative pressure meter, and the problem of neglected mounting of the pin can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to a device for automatically riveting and pressing pins, belonging to the technical field of riveting and pressing devices. Background Art

[0002] The main function of the pin is to locate and fasten parts. It can be installed by pressing or knocking in soft metal. At present, the pin is mainly installed by manual riveting, that is, the staff first manually puts the pin into the pin installation hole on the product, and then presses the pin into the product with a pressure block. This manual riveting method is not only inefficient, but also prone to pin leakage during the riveting process. The depth of the pin riveting is difficult to control, and it is easy to have the riveting depth not in place. At the same time, the consistency of the riveting depth is poor, which affects the product yield. Utility Model Content

[0003] In view of the above problems existing in the prior art, the purpose of the utility model is to provide a device for automatically riveting pins.

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

[0005] A device for automatically riveting pins comprises an upper mounting plate and a lower mounting plate which are arranged horizontally, the upper mounting plate being connected to a cylinder which enables it to make linear up and down motion, the top of the lower mounting plate being provided with a product placement area for placing products, the bottom of the upper mounting plate being vertically provided with a pressure head at a position where a pin needs to be installed on the corresponding product, the bottom of the pressure head being vertically provided with a pin hole which is adapted to the pin, the interior of the pressure head being provided with an air cavity which communicates with the pin hole, the side of the pressure head being provided with a vacuum pipeline which communicates with the air cavity, the vacuum pipeline being respectively connected with a vacuum generator and a negative pressure gauge.

[0006] In one implementation scheme, the negative pressure gauge and the vacuum generator are respectively arranged on the front and rear sides of the upper mounting plate.

[0007] In one implementation scheme, a plurality of fixing sleeves are vertically and symmetrically provided at the bottom of the upper mounting plate, a pre-pressing block is vertically provided directly below the fixing sleeve, a fixing shaft is vertically connected between the fixing sleeve and the pre-pressing block, an outer sleeve of the fixing shaft is provided with a telescopic spring, and when the pin is located in the pin hole at the bottom of the pressure head, the bottom surface height of the pre-pressing block is lower than the bottom surface height of the pin.

[0008] In one implementation, limiting columns are vertically provided on both sides of the bottom of the upper mounting plate.

[0009] In one embodiment, a plurality of guide blocks are vertically arranged in the product placement area.

[0010] In one embodiment, a plurality of positioning pins are vertically arranged in the product placement area.

[0011] In one embodiment, a proximity sensor is provided on top of the lower mounting plate.

[0012] In one implementation, guide pillars are vertically provided on both sides of the bottom of the upper mounting plate, and guide sleeves matched with the guide pillars are vertically provided on the top of the lower mounting plate at positions corresponding to the guide pillars.

[0013] In one implementation scheme, a top plate is horizontally provided above the upper mounting plate, a bottom plate is horizontally provided below the lower mounting plate, columns are vertically connected between the four corners of the top plate and the bottom plate, the cylinder is installed on the top plate, and the output end of the cylinder is connected to the upper mounting plate after passing through the top plate, a support plate is vertically provided at the bottom of the lower mounting plate, a support bottom plate is horizontally provided at the bottom of the support plate, and the support bottom plate is fixed to the top of the bottom plate.

[0014] In a preferred solution, a pressure plate is fixedly provided on the top of the upper mounting plate, and the output end of the cylinder passes through the top plate and is connected to the pressure plate.

[0015] In a preferred embodiment, a plurality of linear bearings are vertically and symmetrically arranged around the cylinder on the top plate, a guide shaft is passed through the linear bearing, and the bottom of the guide shaft is fixedly connected to the top of the pressure plate.

[0016] In a preferred embodiment, support columns are vertically connected between the four corners of the lower mounting plate and the support base plate.

[0017] In one embodiment, the device further comprises an indicator light, which is disposed below a side portion of the lower mounting plate.

[0018] Compared with the prior art, the beneficial technical effects of the utility model are:

[0019] The device provided by the utility model can realize automatic riveting of pins, which not only has high riveting efficiency, but also has controllable riveting depth, and will not cause the situation that the riveting depth is not in place, and the consistency of the riveting depth is good, thereby ensuring the product yield; in addition, during the riveting process, the pins are adsorbed to the bottom of the pressure head by the negative pressure generated by the vacuum generator, which not only makes it convenient to load the pins, but also can detect the presence of the pins through the pressure change of the negative pressure gauge, thereby effectively avoiding the problem of missing pins. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an automatic riveting pin pressing device provided by an embodiment of the utility model;

[0021] Figure 2 It is a front view of the automatic riveting pin pressing device provided by the embodiment of the utility model;

[0022] Figure 3It is a side view of the automatic riveting pin pressing device provided by the embodiment of the utility model;

[0023] Figure 4 This is a state diagram of the automatic riveting pin device provided by the embodiment of the utility model when in use;

[0024] Figure 5 This is a schematic diagram of the distribution structure of the components on the upper mounting plate in the embodiment of the utility model;

[0025] Figure 6 yes Figure 5 A cross-sectional view of

[0026] Figure 7 yes Figure 6 A partial enlarged view of

[0027] Figure 8 This is a schematic diagram of the distribution structure of the components on the lower mounting plate in the embodiment of the utility model;

[0028] Fig. 9 This is a state diagram of the product on the lower mounting plate after riveting in the embodiment of the utility model;

[0029] Fig.10 This is a schematic diagram of the product structure after riveting in the embodiment of the utility model;

[0030] The numbers in the figure are as follows:

[0031] 1. Upper mounting plate; 2. Lower mounting plate; 3. Cylinder; 4. Product; 5. Pin; 6. Pressure head; 601. Pin hole; 602. Air cavity; 7. Vacuum pipeline; 8. Vacuum generator; 9. Negative pressure gauge; 10. Fixed sleeve; 11. Pre-pressure block; 12. Fixed shaft; 13. Telescopic spring; 14. Limit column; 15. Guide block; 16. Locating pin; 17. Proximity sensor; 18. Guide column; 19. Guide sleeve; 20. Top plate; 21. Bottom plate; 22. Column; 23. Support plate; 24. Support bottom plate; 25. Pressure plate; 26. Linear bearing; 27. Guide shaft; 28. Support column; 29. ​​Indicator light. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the terms used in the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. Unless otherwise defined, the technical terms or scientific terms used in the utility model should be the usual meanings understood by people with general skills in the field. The directions or positional relationships indicated by the terms "inside", "outside", "upper", "lower", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", etc. are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. In addition, terms such as "set", "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. It should also be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or there can be a central element.

[0033] Example

[0034] Please combine Figures 1 to 10 As shown: This embodiment provides an automatic riveting pin device, comprising an upper mounting plate 1 and a lower mounting plate 2 which are arranged horizontally, the upper mounting plate 1 being connected to a cylinder 3 which enables it to make linear up and down motion, the top of the lower mounting plate 2 being provided with a product placement area for placing a product 4, the bottom of the upper mounting plate 1 being provided with a pressing head 6 vertically at a position where a pin 5 needs to be installed on the corresponding product 4, the bottom of the pressing head 6 being provided with a pin hole 601 which is adapted to the pin 5 vertically, the interior of the pressing head 6 being provided with an air cavity 602 which is communicated with the pin hole 601, the side of the pressing head 6 being provided with a vacuum pipeline 7 which is communicated with the air cavity 602, the vacuum pipeline 7 being respectively connected with a vacuum generator 8 and a negative pressure gauge 9.

[0035] In the present invention, the number and distribution of the pressure heads 6 can be adjusted according to the shape of the product. The number of pressure heads 6 corresponds to the number of pins 5 that need to be installed in the product 4. In this embodiment, Fig.10 The control panel of the CNC machining center shown is a product 4 . Taking the example that two pins 5 need to be installed on the product 4 , two pressing heads 6 are correspondingly provided at the bottom of the upper mounting plate 1 .

[0036] In the present invention, when there are multiple pressure heads 6, all pressure heads 6 share a vacuum generator 8 and a negative pressure gauge 9 through a vacuum pipeline 7. Figure 5As shown, in this embodiment, two pressure heads 6 share a vacuum generator 8 and a negative pressure gauge 9 through a vacuum pipeline 7.

[0037] The method of using the automatic riveting pin device described in the utility model is as follows:

[0038] Place the product 4 on the product placement area on the top of the lower mounting plate 2, place the pin 5 into the pin hole 601 at the bottom of the pressure head 6, turn on the vacuum generator 8, and generate negative pressure in the air cavity 602 of the pressure head 6 through the vacuum generator 8, and then generate negative pressure in the pin hole 601, so that the pin 5 is adsorbed and fixed in the pin hole 601 under the action of the negative pressure, so that the pin 5 is installed in the pin hole 601 of the pressure head 6. In this process, since the negative pressure gauge 9 is connected to the air cavity 602 of the pressure head 6 through the vacuum pipeline 8, it is possible to judge whether the pin 5 is installed in place by the pressure measured by the negative pressure gauge 9. When all the pins 5 are installed in place, a negative pressure path is formed between the negative pressure gauge 9 and the pressure head 6, and negative pressure is displayed on the negative pressure gauge 9. When the pin 5 is missing, a negative pressure path cannot be formed between the negative pressure gauge 9 and the pressure head 6, and no negative pressure is displayed on the negative pressure gauge, so it can be used to detect the missing pin situation at the same time;

[0039] When all the pins 5 are installed in place, start the cylinder 3, and the upper mounting plate 1 and the pressure head 6 at the bottom of the upper mounting plate 1 make a downward linear motion under the action of the cylinder 3. In this way, the pressure head 6 contacts the product 4 under the action of the cylinder 3, and the pin 5 is pressed into the product 4 under the action of the pressure head 6. Since the pin 5 is pressed into the product 4, there is an interference fit with the product 4, and the force of this interference fit is greater than the negative pressure adsorption force of the pressure head 6 on the pin 5. Therefore, after the riveting is completed, there is no need to turn off the vacuum generator 8. It is only necessary to make the cylinder 3 drive the upper mounting plate 1 and the pressure head 6 to move upward, and then take away the product 4 with the pin 5 installed, and the pin riveting work can be completed;

[0040] As can be seen from the above, the device described in the utility model can realize automatic riveting of pins through the cylinder 3 and the pressure head 6, and the riveting efficiency is high compared with manual riveting; in addition, during the riveting process, the linear motion displacement of the upper mounting plate 1 is controlled by the cylinder 3, and then the motion displacement of the pressure head 6 is controlled, so that the riveting depth is controllable, and the situation of insufficient riveting depth will not occur, and the consistency of the riveting depth is good, ensuring the product yield; in addition, during the riveting process, the negative pressure generated by the vacuum generator 8 adsorbs the pin 5 on the bottom of the pressure head 6, which not only makes it convenient to load the pin 5, but also can detect the presence or absence of the pin 5 through the pressure change of the negative pressure gauge 9, thereby effectively avoiding the problem of missing the pin 5.

[0041] In this embodiment, please combine Figures 1 to 5As shown, the negative pressure gauge 9 and the vacuum generator 8 are respectively arranged on the front and rear sides of the upper mounting plate 1, so that the staff can detect the presence or absence of the pin 5 through the pressure change on the negative pressure gauge 9.

[0042] In this embodiment, please combine Figures 1 to 5 As shown, a plurality of fixing sleeves 10 are vertically and symmetrically arranged at the bottom of the upper mounting plate 1, a pre-pressing block 11 is vertically arranged directly below the fixing sleeve 10, a fixing shaft 12 is vertically connected between the fixing sleeve 10 and the pre-pressing block 11, a telescopic spring 13 is arranged on the outer sleeve of the fixing shaft 12, and when the pin 5 is located in the pin hole 601 at the bottom of the pressure head 6, the bottom height of the pre-pressing block 11 is lower than the bottom height of the pin 5. The number of pre-pressing blocks 11 can be adjusted according to the use requirements. In this embodiment, two pre-pressing blocks 11 are arranged, and the two pre-pressing blocks 11 are symmetrically distributed. During use, when the product 4 is placed on the product placement area on the top of the lower mounting plate 2 and all the pins 5 on the pressure head 6 are installed in place, the cylinder 3 is started, the upper mounting plate 1 moves downward, and the pre-pressing block 11 also moves downward. During the movement, the pre-pressing block 11 cooperates with the telescopic spring 13 to first press onto the surface of the product 4, pressing the product 4 tightly, thereby effectively preventing the product 4 from moving when the subsequent pins 5 are pressed in, and effectively ensuring the stability of the pins during riveting.

[0043] In this embodiment, please combine Figures 1 to 5 As shown, limit columns 14 are vertically provided on both sides of the bottom of the upper mounting plate 1, and the limit columns 14 are used to hard-limit the downward stroke of the pressing head 6, so that the depth of the pin 5 pressed into the product 4 is a fixed value, thereby further ensuring the accuracy and consistency of the pin pressing depth.

[0044] In this embodiment, please combine Figures 1 to 4 , Figure 8 and Fig. 9 As shown, a plurality of guide blocks 15 are vertically arranged in the product placement area to guide the product 4 and ensure that the product 4 is placed in place.

[0045] In this embodiment, please combine Figure 8 and Fig. 9 As shown, a plurality of positioning pins 16 are vertically arranged in the product placement area to position and fix the product 4 so as to facilitate the subsequent riveting operation on the product 4 .

[0046] In this embodiment, please combine Figure 8 and Fig. 9 As shown, a proximity sensor 17 is provided on the top of the lower mounting plate 2, and the proximity sensor 17 is used to detect whether the product 4 is placed in the product placement area.

[0047] In this embodiment, please combine Figures 1 to 5As shown, guide columns 18 are vertically provided on both sides of the bottom of the upper mounting plate 1, and guide sleeves 19 matched with the guide columns 18 are vertically provided on the top of the lower mounting plate 2 at positions corresponding to the guide columns 18. The guide columns 18 and the guide sleeves 19 further guide the up and down movement of the upper mounting plate 1, thereby ensuring the linearity of the movement of the upper mounting plate 1, thereby ensuring the linearity of the movement of the pressing head 6, and further ensuring the riveting effect.

[0048] In this embodiment, please combine Figures 1 to 4 As shown, a top plate 20 is horizontally arranged above the upper mounting plate 1, a bottom plate 21 is horizontally arranged below the lower mounting plate 2, and columns 22 are vertically connected between the four corners of the top plate 20 and the bottom plate 21. The cylinder 3 is mounted on the top plate 20, and the output end of the cylinder 3 is connected to the upper mounting plate 1 after passing through the top plate 20. A support plate 23 is vertically arranged at the bottom of the lower mounting plate 2, and a support bottom plate 24 is horizontally arranged at the bottom of the support plate 23. The support bottom plate 24 is fixedly arranged on the top of the bottom plate 21. Through the design of the top plate 20, the bottom plate 21, the columns 22, the support plate 23, and the support bottom plate 24, the upper mounting plate 1, the lower mounting plate 2, and the cylinder 3 can be installed and fixed.

[0049] In addition, a pressing plate 25 is fixed on the top of the upper mounting plate 1, and the output end of the cylinder 3 is connected to the pressing plate 25 after passing through the top plate 20. When in use, the cylinder 3 drives the pressing plate 25 to move up and down linearly and then drives the upper mounting plate 1 to move up and down linearly.

[0050] In addition, a plurality of linear bearings 26 are vertically and symmetrically arranged around the cylinder 3 on the top plate 20, and a guide shaft 27 is passed through the linear bearing 26. The bottom of the guide shaft 27 is fixedly connected to the top of the pressing plate 25, further ensuring the linearity of the movement of the pressing plate 25, thereby ensuring the riveting effect.

[0051] In addition, support columns 28 are vertically connected between the four corners of the lower mounting plate 2 and the supporting bottom plate 23 to support and fix the lower mounting plate 2 .

[0052] In this embodiment, please combine Figure 1 , Figure 2 , Figure 8 and Fig. 9As shown, the device further includes an indicator light 29, which is disposed below the side of the lower mounting plate 2. Further, the device further includes a controller (not shown in the figure), which is electrically connected to the cylinder 3, the vacuum generator 8, the negative pressure gauge 9, the proximity sensor 17, and the indicator light 29. When the proximity sensor 17 shows that the product 4 is placed in the product placement area on the top of the lower mounting plate 2, and the negative pressure gauge 9 shows that all the pins 5 on the pressure head 6 are installed in place, the indicator light 29 lights up, and then the cylinder 3 is started. In this way, the indicator light 29 can intuitively display whether the product 4 and the pins 5 are in place.

[0053] Finally, it is necessary to point out that the above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be covered within the protection scope of the utility model.

Claims

1. A device for automatically riveting pins, characterized in that: It includes an upper mounting plate and a lower mounting plate which are arranged horizontally, the upper mounting plate is connected to a cylinder which enables it to make linear motion up and down, the top of the lower mounting plate is provided with a product placement area for placing products, the bottom of the upper mounting plate is vertically provided with a pressure head at a position where a pin needs to be installed corresponding to the product, the bottom of the pressure head is vertically provided with a pin hole which is adapted to the pin, the interior of the pressure head is provided with an air cavity which communicates with the pin hole, the side of the pressure head is provided with a vacuum pipeline which communicates with the air cavity, and the vacuum pipeline is respectively connected with a vacuum generator and a negative pressure gauge.

2. The automatic riveting pin device according to claim 1, characterized in that: A plurality of fixing sleeves are vertically and symmetrically provided at the bottom of the upper mounting plate, a pre-pressing block is vertically provided directly below the fixing sleeve, a fixing shaft is vertically connected between the fixing sleeve and the pre-pressing block, a telescopic spring is provided on the outer sleeve of the fixing shaft, and when the pin is located in the pin hole at the bottom of the pressure head, the bottom surface height of the pre-pressing block is lower than the bottom surface height of the pin.

3. The automatic riveting pin device according to claim 1, characterized in that: Limiting columns are vertically arranged on both sides of the bottom of the upper mounting plate.

4. The automatic riveting pin device according to claim 1, characterized in that: A plurality of guide blocks are vertically arranged in the product placement area.

5. The automatic riveting pin device according to claim 1, characterized in that: A plurality of positioning pins are vertically arranged in the product placement area.

6. The automatic riveting pin device according to claim 1, characterized in that: A proximity sensor is disposed on the top of the lower mounting plate.

7. The automatic riveting pin device according to claim 1, characterized in that: Guide pillars are vertically arranged on both sides of the bottom of the upper mounting plate, and guide sleeves matched with the guide pillars are vertically arranged on the top of the lower mounting plate at positions corresponding to the guide pillars.

8. The automatic riveting pin device according to claim 1, characterized in that: A top plate is horizontally provided above the upper mounting plate, a bottom plate is horizontally provided below the lower mounting plate, columns are vertically connected between the four corners of the top plate and the bottom plate, the cylinder is installed on the top plate, and the output end of the cylinder is connected to the upper mounting plate after passing through the top plate, a support plate is vertically provided at the bottom of the lower mounting plate, a support bottom plate is horizontally provided at the bottom of the support plate, and the support bottom plate is fixed to the top of the bottom plate.

9. The automatic riveting pin device according to claim 8, characterized in that: A pressing plate is fixedly arranged on the top of the upper mounting plate, and the output end of the cylinder is connected with the pressing plate after passing through the top plate.

10. The automatic riveting pin device according to claim 9, characterized in that: A plurality of linear bearings are vertically and symmetrically arranged around the cylinder on the top plate, a guide shaft is passed through the linear bearing, and the bottom of the guide shaft is fixedly connected to the top of the pressure plate.

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