Balance riveting mechanism

Abstract

The invention relates to the technical field of riveting machining, in particular to a balance riveting mechanism which comprises a lower die base arranged on a lower supporting plate, two lower back plates symmetrically arranged front and back are arranged on the lower die base, two lower die plates symmetrically arranged left and right are arranged on the upper portion of each lower back plate, and a mounting groove is formed between the two lower back plates. The left end and the right end of the installation groove are each provided with a containing groove used for containing a riveted product, the front portion and the rear portion of each containing groove are each provided with a lower die plate, an upper die base is arranged above the lower die base, the middle of each containing groove is provided with a positioning guide column connected with the lower die base, the positioning guide columns are vertically arranged, and the upper portions of the positioning guide columns are slidably connected with the upper die base. The main positioning guide column and the guide sleeve are arranged in the center of the riveting mechanism, the two ends of the riveting mechanism are of symmetrical structural design, stamping and riveting of products can be completed at the same time, production efficiency is improved, and stamping and riveting force in the riveting mechanism is better balanced.

Description

Technical Field

[0001] The invention relates to the technical field of riveting processing, and in particular to a balanced riveting mechanism. Background Art

[0002] Riveting is a method of connecting two workpieces through an intermediate workpiece using mechanical force. Rivets are usually used to connect the two workpieces.

[0003] For example, on March 5, 2014, a document with a publication number of CN103611828A was disclosed, and its name was a hood riveting device for an automobile fan motor hood riveting machine. The hood riveting device for the automobile fan motor hood riveting machine includes a fan motor supporting device fixed on the workbench plane, columns are installed on both sides of the lower base plate of the fan motor supporting device, and a two-stage gas-liquid boost riveting mechanism is installed on the upper end of the column. The riveting mold of the two-stage gas-liquid boost riveting mechanism is connected to the column through a linear slider. The invention can effectively reduce labor costs and improve production efficiency; but the applicant found that when the stamping is higher and narrower than the product with an ordinary template size, it is very easy to generate unstable and unbalanced impact riveting force during the stamping riveting action, which reduces production efficiency. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a balanced riveting mechanism to solve the problem of reduced production efficiency.

[0005] The camming mechanism according to claim 1, wherein the two members are arranged on a line, the two members being arranged on a line with the two cams and the two members being arranged on a line with the two cams.

[0006] Optionally, side guide pillars are vertically arranged on both sides of the lower mold base, and the upper parts of the side guide pillars are slidably connected to the upper mold base.

[0007] Optionally, Teflon inserts connected to the lower end surface of the upper die seat are provided on both left and right sides of the placement groove, and the lower parts of the sides where the two Teflon inserts are arranged facing each other are provided with chamfers.

[0008] Optionally, a support frame is provided on the lower support plate, and the lower support plate is connected to the support frame by a moving member, and the moving member is used to control the support frame to approach or move away from the placement groove, and the support frame is located on one side between the two lower templates, and a driving member and a driving shaft are provided on the support frame, and the driving member is used to control the rotation of the driving shaft, and the driving shaft is horizontally arranged, and a first flip arm is fixedly connected to the side wall of the driving shaft, and a first bevel gear is coaxially arranged on the driving shaft, and a second bevel gear is meshed on the first bevel gear, and the second bevel gear is coaxially connected with an oblique shaft located above the driving shaft, and the oblique shaft is tilted, and the oblique shaft is rotatably connected to the support frame through a bearing, and a second flip arm is fixedly connected to the side wall of the oblique shaft, and the ends of the first flip arm and the ends of the second flip arm are both provided with clamping members for clamping riveted products.

[0009] Optionally, the moving part includes a moving cylinder, and both ends of the moving cylinder are respectively connected to the lower support plate and the support frame.

[0010] Optionally, the driving member includes a driving motor arranged on the supporting frame, the output end of the driving motor is connected to a driving shaft, a driving arm is fixedly connected to the side wall of the driving shaft, the end of the driving arm away from the driving shaft is connected to a slide rail arm, a rotating shaft and a driving shaft are arranged in sequence from bottom to top directly above the driving shaft, a first slider is arranged on the rotating shaft and is slidably connected to the slide rail arm, a driving arm is fixedly connected to the side wall of the driving shaft, and a second slider is arranged on the end of the driving arm away from the driving shaft and is slidably connected to the slide rail arm.

[0011] Optionally, the slide rail arm is provided with a slide groove or a bar hole which is slidably connected to the first slide block and the second slide block.

[0012] Optionally, installation grooves for accommodating the lower template are provided on both left and right sides of the upper end surface of the lower back plate, and a lower template pad is provided between the lower template and the bottom of the installation groove.

[0013] Optionally, the lower support plate and the lower mold base are supported and connected by a plurality of lower pads.

[0014] Beneficial effects of the present invention: The present invention provides a balanced riveting mechanism. Compared with the traditional riveting mechanism design concept, the present riveting mechanism adopts a structural design with symmetry at both ends, and can rivet two products at the same time, thereby improving production efficiency and better balancing the stamping riveting force inside the riveting mechanism, reducing the time for debugging and repairing the riveting mechanism, maintaining the stability of the riveting mechanism, and balancing the impact riveting force. At the same time, it also ensures the stability of the size of the riveted product and reduces the defective rate of the riveted product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the local structure of the present invention;

[0017] Figure 2 It is a schematic diagram of a partial top view of the structure of the present invention with a riveted product placed thereon;

[0018] Figure 3 It is a partial front view structural schematic diagram of the present invention with riveted products placed thereon;

[0019] Figure 4 It is a structural schematic diagram of the riveted product of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the connection between the lower support plate and the flip member of the present invention;

[0021] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 7 It is a schematic diagram of the structure in which the first helical gear and the second helical gear are meshing with each other according to the present invention.

[0023] In the figure: 1. flip part; 2. positioning guide column; 3. riveting punch; 4. Teflon insert; 5. riveting product; 6. upper die seat; 7. upper pad; 8. upper clamping plate; 9. stripper plate; 10. lower template; 11. lower die pad; 12. lower die seat; 13. lower pad; 14. lower support plate; 15. lower backing plate; 16. side guide column; 17. support frame; 101. drive motor; 102. drive shaft; 103. drive arm; 104. slide rail arm; 105. rotating shaft; 106. first slider; 107. drive shaft; 108. second slider; 109. drive arm; 110. first flip arm; 111. oblique shaft; 112. first bevel gear; 113. second bevel gear; 114. second flip arm; 115. clamping part. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1 and Figure 7As shown, a balanced riveting mechanism includes a lower die base 12 arranged on a lower supporting plate 14, the lower die base 12 is provided with two lower back plates 15 symmetrically arranged front and back, each of the lower back plates 15 is provided with two lower templates 10 symmetrically arranged left and right, a mounting groove is provided between the two lower back plates 15, and both left and right ends of the mounting groove are provided with receiving grooves for accommodating and placing riveted products 5, the lower templates 10 are arranged in front and behind the receiving grooves, and a matching groove opened on the upper end surface of the lower die base 12 is provided below the receiving groove, and the matching groove facilitates the placement of the riveted product 5, and an upper die base 6 is provided above the lower die base 12. When in use, the upper die base 6 can be connected and fixed to a common hydraulic punch or a pneumatic punch, so as to drive the upper die base 6 to move up and down. An upper pad 7 and an upper clamping plate 8 are sequentially arranged below the upper die seat 6, and stripping plates 9 cooperating with the lower template 10 are arranged on the left and right sides of the lower end surface of the upper clamping plate 8. The two stripping plates 9 are respectively located above the two accommodating grooves, and a riveting punch 3 for riveting the riveted product 5 is arranged on the stripping plate 9. The upper end of the riveting punch 3 passes through the stripping plate 9 and is connected to the lower end surface of the upper pad 7. A positioning guide column 2 connected to the lower die seat 12 is arranged in the middle of the accommodating groove. The positioning guide column 2 is vertically arranged, and the upper part of the positioning guide column 2 is slidably connected to the upper die seat 6, wherein the main positioning guide column guide sleeve is placed in the center of the riveting mechanism, and the two ends are designed with a symmetrical structure, which can complete the stamping and riveting of two products at the same time.

[0027] Compared with the traditional riveting mechanism design concept, this riveting mechanism adopts a structural design with symmetry at both ends, which can rivet two products at the same time, thereby improving production efficiency, better balancing the stamping riveting force inside the riveting mechanism, reducing the time for debugging and repairing the riveting mechanism, maintaining the stability of the riveting mechanism, and balancing the impact riveting force. At the same time, it also ensures the stability of the size of the riveted product 5 and reduces the defective rate of the riveted product 5.

[0028] Side guide columns 16 are vertically arranged on both sides of the lower die base 12. The upper part of the side guide columns 16 is slidably connected to the upper die base 6. The arrangement of the side guide columns 16 facilitates the improvement of stable and balanced impact riveting force during the punching and riveting action, thereby improving production efficiency.

[0029] The left and right sides of the placement groove are both provided with Teflon inserts 4 connected to the lower end surface of the upper die seat 6, and the Teflon inserts 4 are fixedly connected to the upper clamping plate 8. The lower parts of the two Teflon inserts 4 on the side facing each other are both provided with chamfers. When the riveted product 5 is placed in the accommodating groove and the matching groove, the upper die seat 6 moves toward each other to drive the chamfers of the Teflon inserts 4 to push the riveted product 5, so that the riveted product 5 is better matched and placed in the matching groove.

[0030] In order to facilitate the exchange and flipping of the two riveted products 5, a support frame 17 is provided on the lower support plate 14, and the lower support plate 14 and the support frame 17 are connected by a moving member, and the moving member is used to control the support frame 17 to approach or move away from the placement groove. The support frame 17 is located on one side between the two lower templates 10. A flip member 1 is provided on the support frame 17, and the flip member 1 is used to realize the exchange and flipping of the two riveted products 5. The flip member 1 includes a driving member and a driving shaft 107, and the driving member is used to control the rotation of the driving shaft 107. The driving shaft 107 is horizontally arranged. A first flip arm 110 is fixedly connected to the side wall of the support frame 17, a first bevel gear 112 is coaxially arranged on the driving shaft 107, a second bevel gear 113 is meshed on the first bevel gear 112, the second bevel gear 113 is coaxially connected to an oblique shaft 111 located above the driving shaft 107, the oblique shaft 111 is tilted, the oblique shaft 111 is rotatably connected to the support frame 17 through a bearing, a second flip arm 114 is fixedly connected to the side wall of the oblique shaft 111, and a clamping piece 115 for clamping the riveted product 5 is provided at the end of the first flip arm 110 and the end of the second flip arm 114;

[0031] When it is necessary to exchange and flip the two riveted products 5, the moving part controls the support frame 17 to approach the placement groove, and the driving part is used to control the rotation of the driving shaft 107. Due to the meshing transmission of the first bevel gear 112 and the second bevel gear 113, the angle between the bevel shaft 111 and the driving shaft 107 is less than ninety degrees. When the driving shaft 107 and the first flipping arm 110 rotate clockwise, the left-side riveted product 5 in the accommodating groove on the left side of the lower die base 12 is flipped and moved to the accommodating groove on the right side of the lower die base 12. The bevel shaft 111 and the second flipping arm 114 rotate counterclockwise to flip the right-side riveted product 5 in the accommodating groove on the right side of the lower die base 12 to the accommodating groove on the left side of the lower die base 12, thereby realizing the exchange and flipping of the two riveted products 5.

[0032] The clamping member 115 includes a suction cup, which is connected to a suction machine via a connecting pipe. The suction cup can adsorb and clamp the riveted product 5.

[0033] In order to facilitate the control of the support frame 17 to approach or move away from the placement slot, so that the first flip arm 110 and the second flip arm 114 can exchange and flip the riveted product 5, the moving part includes a moving cylinder, and the two ends of the moving cylinder are respectively connected to the lower support plate 14 and the support frame 17. The extension and retraction of the moving cylinder facilitates the control of the support frame 17 to approach or move away from the placement slot.

[0034] The driving member includes a driving motor 101 arranged on the supporting frame 17, the output end of the driving motor 101 is connected to a driving shaft 102, a driving arm 103 is fixedly connected to the side wall of the driving shaft 102, and a slide rail arm 104 is connected to the end of the driving arm 103 away from the driving shaft 102, and a rotating shaft 105 and a driving shaft 107 are arranged in sequence from bottom to top directly above the driving shaft 102, a first slider 106 slidably connected to the slide rail arm 104 is arranged on the rotating shaft 105, a driving arm 109 is fixedly connected to the side wall of the driving shaft 107, and a second slider 108 slidably connected to the slide rail arm 104 is arranged at one end of the driving arm 109 away from the driving shaft 107;

[0035] In order to facilitate the control of the reciprocating motion of the driving shaft 107 and the oblique shaft 111 to rotate 180 degrees clockwise and 180 degrees counterclockwise, so as to facilitate the first flip arm 110 and the second flip arm 114 to flip 180 degrees, the driving motor 101 is started to drive the driving shaft 102 and the driving arm 103 to rotate, so that the slide rail arm 104 swings left and right, and the first slider 106 and the second slider 108 slide on the slide rail arm 104, thereby driving the driving shaft 107 and the first flip arm 110 to rotate 180 degrees clockwise and 180 degrees counterclockwise. The reciprocating motion of the first bevel gear 112 and the second bevel gear 113 is meshed and transmitted, and the angle between the bevel shaft 111 and the driving shaft 107 is less than ninety degrees. When the driving shaft 107 and the first flip arm 110 rotate clockwise, the left-side riveted product 5 in the accommodating groove on the left side of the lower die base 12 is flipped and moved to the accommodating groove on the right side of the lower die base 12. The bevel shaft 111 and the second flip arm 114 rotate counterclockwise to flip the right-side riveted product 5 in the accommodating groove on the right side of the lower die base 12 to the accommodating groove on the left side of the lower die base 12, thereby realizing the exchange and flipping of the two riveted products 5.

[0036] The slide rail arm 104 is provided with a slide groove or a bar hole slidably connected to the first slider 106 and the second slider 108 to limit the movement trajectory of the first slider 106 and the second slider 108 and prevent the first slider 106 and the second slider 108 from moving and deviating.

[0037] The left and right sides of the upper end surface of the lower back plate 15 are provided with mounting grooves for accommodating the lower template 10 , and a lower template pad 11 is arranged between the lower template 10 and the bottom of the mounting groove to facilitate the connection support of the riveted product 5 .

[0038] The lower supporting plate 14 is supported and connected to the lower die base 12 by a plurality of lower pads 13 , so as to facilitate the connection and support of the lower die base 12 .

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. The present invention is not limited to the above-mentioned implementation modes, that is, it does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A balanced riveting mechanism, comprising a lower die seat (12) disposed on a lower support plate (14), characterized in that: The lower die base (12) is provided with two lower back plates (15) symmetrically arranged front and back, and each of the lower back plates (15) is provided with two lower templates (10) symmetrically arranged left and right on the upper part, and a mounting groove is provided between the two lower back plates (15), and both left and right ends of the mounting groove are provided with receiving grooves for accommodating and placing riveted products (5), and the lower templates (10) are arranged in front and behind the receiving grooves, and an upper die base (6) is provided above the lower die base (12), and an upper pad (7) and an upper clamping plate (8) are provided in sequence below the upper die base (6), and the lower end surface of the upper clamping plate (8) is A stripping plate (9) is provided on both the left and right sides to cooperate with the lower template (10), and the two stripping plates (9) are respectively located above the two receiving grooves. A riveting punch (3) for riveting the riveted product (5) is provided on the stripping plate (9), and the upper end of the riveting punch (3) passes through the stripping plate (9) and is connected to the lower end surface of the upper pad (7). A positioning guide column (2) connected to the lower die base (12) is provided in the middle of the receiving groove, and the positioning guide column (2) is vertically arranged, and the upper part of the positioning guide column (2) is slidably connected to the upper die base (6).

2. A balanced riveting mechanism according to claim 1, characterized in that: Side guide columns (16) are vertically arranged on both sides of the lower die seat (12), and the upper parts of the side guide columns (16) are slidably connected to the upper die seat (6).

3. A balanced riveting mechanism according to claim 1, characterized in that: Teflon inserts (4) connected to the lower end surface of the upper die seat (6) are arranged on both the left and right sides of the placement groove, and the lower parts of the two Teflon inserts (4) facing each other are both provided with chamfers.

4. A balanced riveting mechanism according to claim 1, characterized in that: A support frame (17) is arranged on the lower support plate (14), and the lower support plate (14) and the support frame (17) are connected via a moving part, and the moving part is used to control the support frame (17) to approach or move away from the placement groove, and the support frame (17) is located on one side between the two lower templates (10), and a driving member and a driving shaft (107) are arranged on the support frame (17), and the driving member is used to control the rotation of the driving shaft (107), and the driving shaft (107) is arranged horizontally, and a first flip arm (110) is fixedly connected to the side wall of the driving shaft (107), and the driving shaft (107) A first bevel gear (112) is coaxially arranged on the upper side, a second bevel gear (113) is meshed with the first bevel gear (112), the second bevel gear (113) is coaxially connected to an oblique rotating shaft (111) located above the driving rotating shaft (107), the oblique rotating shaft (111) is tilted, the oblique rotating shaft (111) is rotatably connected to the support frame (17) via a bearing, a second flip arm (114) is fixedly connected to the side wall of the oblique rotating shaft (111), and a clamping member (115) for clamping the riveted product (5) is provided at the end of the first flip arm (110) and the end of the second flip arm (114).

5. A balanced riveting mechanism according to claim 4, characterized in that: The moving part comprises a moving cylinder, and the two ends of the moving cylinder are respectively connected with the lower support plate (14) and the support frame (17).

6. A balanced riveting mechanism according to claim 4, characterized in that: The driving member comprises a driving motor (101) arranged on the supporting frame (17), the output end of the driving motor (101) is connected to a driving shaft (102), a driving arm (103) is fixedly connected to the side wall of the driving shaft (102), an end of the driving arm (103) away from the driving shaft (102) is connected to a slide rail arm (104), a rotating shaft (105) and a driving shaft (107) are arranged in sequence from bottom to top directly above the driving shaft (102), a first sliding block (106) slidably connected to the slide rail arm (104) is arranged on the rotating shaft (105), a driving arm (109) is fixedly connected to the side wall of the driving shaft (107), and a second sliding block (108) slidably connected to the slide rail arm (104) is arranged at one end of the driving arm (109) away from the driving shaft (107).

7. A balanced riveting mechanism according to claim 6, characterized in that: The slide rail arm (104) is provided with a slide groove or a strip-shaped hole which is slidably connected to the first slide block (106) and the second slide block (108).

8. A balanced riveting mechanism according to claim 1, characterized in that: The left and right sides of the upper end surface of the lower back plate (15) are provided with mounting grooves for accommodating the lower template (10), and a lower template pad (11) is arranged between the lower template (10) and the bottom of the mounting groove.

9. A balanced riveting mechanism according to claim 1, characterized in that: The lower support plate (14) and the lower die base (12) are supported and connected via a plurality of lower pads (13).

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