Plate connecting and positioning device and connecting equipment thereof

Abstract

The utility model discloses a plate connecting and positioning device and connecting equipment thereof, the plate connecting and positioning device comprises a base, an X-direction restraining mechanism, a Z-direction restraining mechanism and a Y-direction restraining mechanism, the Y-direction restraining mechanism comprises a limiting rod capable of moving along the base and a stopping structure capable of stopping the limiting rod from moving, and the X-direction restraining mechanism is connected with the Z-direction restraining mechanism. The limiting rod is located in a plate connecting area, and the limiting rod can abut against the end of a connected plate. The design of the limiting rod can be adjusted to be in place according to the size of a plate connecting area, then the limiting rod is fixed, the limiting rod is clamped after scales are aligned in the X direction, and the limiting rod is restrained in the Z direction, so that it is guaranteed that the length displacement of each connected plate stretching into the die can be rapidly determined in the Y direction, and the time-consuming and labor-consuming operation step of measuring and scribing is avoided. Moreover, as the position of the limiting rod is fixed and the constraints in the X direction, the Y direction and the Z direction are determined, the connection of multiple groups of plates in the same batch can ensure that the positions of connection points are accurate, and the connection quality data of workpieces in the same batch have no deviation.

Description

Technical Field

[0001] The utility model belongs to the technology of stamping connection and self-piercing riveting, and specifically relates to a plate material connection positioning device and a connection device thereof, which is especially suitable for matching with a mold on the stamping connection and self-piercing riveting equipment. Background Art

[0002] At present, stamping technology and self-piercing riveting technology are widely recognized as representative connection technologies for thin plate materials. Connection tests are often required during the research process. The success of the test is affected by many factors, such as equipment performance, parameter control, process feasibility, etc., especially the ability of the punch to punch the center of the plate during the stamping process is one of the most critical factors. In the prior art, when conducting thin plate material connection tests, in order to ensure that the punch can be aligned with the center position of the connection area, it is necessary to measure and mark the connection area in advance to find the center position; then, when connecting, hold the connected sheet by hand, and use the naked eye to observe that the punch is aligned with the center position before stamping and riveting.

[0003] The existing operation mode has the following defects:

[0004] 1. The error generated is large, and the connection point often deviates from the center position, causing test data deviation and inaccurate test results.

[0005] 2. When holding the connected parts, the hand is very close to the punch, and the operator's safety cannot be guaranteed. Under long-term conditions, misoperation may cause the hand to be crushed. Utility Model Content

[0006] In view of the above problems, the utility model aims to provide a positioning device which can ensure the accurate position of the connection points when connecting the plates and is safe to operate, and also provides a connecting device with such a positioning device.

[0007] The directional terms mentioned in this case are defined as follows:

[0008] The X direction, Y direction, and Z direction described in this case are concepts of a three-dimensional rectangular coordinate system, which are directions determined for the convenience of describing the positioning device and do not constitute a limitation on the structure of the utility model.

[0009] Sheet material connection area: refers to the area where connection points need to be made, that is, the area where the connected sheets overlap.

[0010] The technical solution of the utility model to solve the problem is: a plate material connection and positioning device, comprising:

[0011] A base, wherein the base is provided with an open area in the Z direction for allowing an object to pass through;

[0012] An X-direction constraint mechanism, adapted to limit the X-direction freedom of the sheet material, the X-direction constraint mechanism comprising a clamping mechanism capable of clamping the sheet material in the X-direction, the clamping mechanism being arranged on the base;

[0013] A Z-direction constraint mechanism, suitable for limiting the Z-direction freedom of the sheet material, the Z-direction constraint mechanism comprises an arm and a pressing end, one end of the arm is movably connected to the base, and the other end of the arm is connected to the pressing end that can abut against the surface of the sheet material;

[0014] The Y-axis constraint mechanism is suitable for limiting the Y-axis freedom of the sheet material. The Y-axis constraint mechanism is arranged on the base and close to the sheet material connection area. The Y-axis constraint mechanism includes a limit rod that can move along the base and a stop structure that can stop the limit rod from moving. The limit rod is located in the sheet material connection area, and the limit rod can abut against the end of the connected sheet material.

[0015] In the above scheme, the limit rod can be adjusted to different positions according to the size of the sheet connection area to limit the length of the sheet extending into the lower mold in the Y direction, so as to quickly determine the position of the sheet in the Y direction, and then cooperate with the constraints in the X and Z directions to quickly and accurately locate the position where the connection point needs to be placed directly below the punch.

[0016] Specifically, the X-axis constraint mechanism further includes a through slot provided on the base and a notch provided on the base;

[0017] In the notch area, the through groove is connected to the outside; the sheet material can be placed in the notch;

[0018] The clamping mechanism comprises a pair of screw rods arranged in the through slots, each screw rod is provided with a slider, and the two sliders can independently rotate with the screw rods to approach or move away from each other, so as to achieve clamping or loosening of the sheet material in the X direction.

[0019] Furthermore, a center scale is provided in the notch area, the center scale takes the middle position of the notch as the 0 mark, and two sliders are symmetrically distributed along the middle position of the notch.

[0020] Furthermore, a handwheel which can be used to rotate the screw rod is provided at one end of the screw rod away from the notch.

[0021] In a preferred solution, one end of the arm is movably connected to the base via a pin, so that the arm can rotate around the pin in the horizontal direction;

[0022] The other end of the arm is provided with a sleeve, and the pressing end includes a pressure rod inserted into the sleeve, a stopper that cannot pass through the sleeve is fixed at the top of the pressure rod, and a pressure pad that can abut against the surface of the sheet is provided at the lower end of the pressure rod;

[0023] A spring which is always kept in a compressed state is arranged between the pressure pad and the lower surface of the sleeve.

[0024] Specifically, a slide groove A is opened on the base along the Y direction, and one end of the limit rod is arranged in the slide groove A and can move in the slide groove A;

[0025] The limiting rod can abut against the end of each connected sheet material;

[0026] The stop structure can limit the movement of one end of the limiting rod located in the A sliding groove.

[0027] A specific solution is that the limit rod is a cantilever structure, and one end of the limit rod away from the A slide groove abuts against the end of the connected sheet material;

[0028] or,

[0029] Another specific solution is that the limit rod is a simply supported beam structure, and a slide groove B is opened along the Y direction on the base on the opposite side of the slide groove A. One end of the limit rod is arranged in the slide groove A and the other end is arranged in the slide groove B. Both ends of the limit rod move in the slide grooves A and B at the same time, and the middle area of ​​the limit rod abuts against the end of the connected sheet material.

[0030] In order to quickly determine the size of the connected area, a scale line is provided at the position of chute A.

[0031] Furthermore, the stop structure includes a threaded section and a handle section fixedly connected to the threaded section, the threaded section is threadedly connected to one end of the limit rod located in the A slide groove, and the handle section is locked to the outer surface of the A slide groove to limit the limit rod;

[0032] or,

[0033] The stop structure is a damping layer arranged on the A slide groove, which limits the movement of the limit rod at one end of the A slide groove through friction.

[0034] In a preferred solution, the X-axis constraint mechanism is provided with two pairs and is located on opposite sides of the base;

[0035] The Z-direction constraint mechanism is provided with two pairs, which are respectively located on one side of the X-direction constraint mechanism;

[0036] The Y-direction constraint mechanisms are provided in two pairs, and are respectively located on two opposite sides of the base where no X-direction constraint mechanisms are provided.

[0037] Preferably, the base is a rectangular frame structure.

[0038] Correspondingly, the utility model also provides a connection device, including a frame, a lower mold installed on the frame, and a punch mechanism installed on the frame suitable for stamping connection or self-piercing riveting, the punch mechanism includes an upper mold, and also includes the above-mentioned sheet material connection positioning device, the sheet material connection positioning device is fixedly installed on the frame, and the lower mold is arranged in the open area of ​​the base.

[0039] The remarkable effects of the utility model are:

[0040] 1. The design of the limit rod can be adjusted to the size of the sheet connection area and then fixed in place, and then clamped after aligning the scale in the X direction, plus the constraint in the Z direction, so as to ensure that each connected sheet can quickly determine the length displacement of the mold in the Y direction, avoiding the time-consuming and labor-intensive operation steps of measuring and marking. Moreover, since the position of the limit rod is fixed and the constraints in the three directions of XYZ are determined, the connection of multiple groups of sheets in the same batch can ensure the precise position of the connection point, ensuring that the connection quality data of the same batch of workpieces is not biased.

[0041] 2. No need to hold the sheet metal to connect, which avoids errors caused by human factors and ensures personnel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The utility model will be further described below in conjunction with the accompanying drawings.

[0043] Figure 1 This is a structural schematic diagram of the positioning device of the utility model from one viewing angle.

[0044] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0045] Figure 3 This is a structural schematic diagram of the positioning device of the utility model from another perspective.

[0046] Figure 4 for Figure 3 Enlarged view of B.

[0047] Figure 5 This is a working state diagram of the positioning device of the utility model.

[0048] Figure 6 It is a schematic diagram of the position relationship between the positioning device of the utility model and the upper and lower molds.

[0049] Figure 7 This is a schematic diagram of the structure of the connection device of the utility model.

[0050] In the figure: 1-base, 2-clamping mechanism, 3-Z-direction constraint mechanism, 4-handwheel, 5-sheet, 6-Y-direction constraint mechanism, 7-frame, 8-lower mold, 9-punch mechanism, 10-upper mold; 11-slot, 12-center dividing scale, 13-A slide groove, 14-through groove, 15-B slide groove, 16-scale line; 21-slider, 22-screw; 31-arm, 32-stop, 33-spring, 34-pressing end, 35-pressure pad, 36-pressure rod, 37-pin, 38-sleeve; 61-limit rod, 62-stop structure. DETAILED DESCRIPTION

[0051] For the convenience of description, the description of the relative position relationship of each component (such as: up, down, left, right, etc.) is described according to the layout direction of the drawings in the specification, and does not limit the structure of this patent.

[0052] like Figures 1 to 5 As shown, a plate material connection and positioning device comprises:

[0053] A base 1, wherein the base 1 is provided with an open area in the Z direction for allowing objects to pass through; in this embodiment, the base 1 is a rectangular frame structure;

[0054] An X-direction constraint mechanism, suitable for limiting the X-direction freedom of the sheet material, the X-direction constraint mechanism comprises a clamping mechanism 2 which can clamp the sheet material in the X-direction, and the clamping mechanism 2 is arranged on the base 1;

[0055] A Z-direction constraint mechanism 3 is suitable for limiting the Z-direction freedom of the sheet material. The Z-direction constraint mechanism 3 comprises an arm 31 and a pressing end 34. One end of the arm 31 is movably connected to the base 1, and the other end of the arm 31 is connected to the pressing end 34 that can abut against the surface of the sheet material 5.

[0056] The Y-direction constraint mechanism 6 is suitable for limiting the Y-direction freedom of the sheet material. The Y-direction constraint mechanism 6 is arranged on the base 1 and close to the connection area of ​​the sheet material 5. The Y-direction constraint mechanism 6 includes a limit rod 61 that can move along the base 1 and a stop structure 62 that can stop the limit rod 61 from moving. The limit rod 61 is located in the sheet material connection area, and the limit rod 61 can abut against the end of the connected sheet material 5.

[0057] In a preferred solution, the X-axis constraint mechanism is provided with two pairs and is located on two opposite sides of the base 1;

[0058] The Z-direction constraint mechanism 3 is provided with two pairs, which are respectively located on one side of the X-direction constraint mechanism;

[0059] The Y-direction constraint mechanisms 6 are provided in two pairs, and are respectively located on two opposite sides of the base 1 where no X-direction constraint mechanisms are provided.

[0060] Specifically, the X-axis restraint mechanism further includes a through slot 14 disposed on the base 1 and a notch 11 formed on the base 1. In the notch 11 area, the through slot 14 is connected to the outside. The sheet material 5 can be placed in the notch 11.

[0061] The clamping mechanism 2 includes a pair of screw rods 22 arranged in the through groove 14, each screw rod 22 is provided with a slider 21, and the two sliders 21 can independently rotate with the screw rod 22 to approach or move away from each other to achieve clamping or loosening of the sheet material 5X direction.

[0062] The screw rod 22 can be driven electrically or manually, both of which are mature technologies. In this embodiment, the manual driving method is adopted. A hand wheel 4 that can be used to rotate the screw rod 22 is provided at one end of the screw rod 22 away from the notch 11 .

[0063] Furthermore, a center scale 12 is provided in the region of the notch 11. The center scale 12 takes the middle position of the notch 11 as the 0 scale line, and two sliders 21 are symmetrically distributed along the middle position of the notch 11. The purpose of designing the center scale 12 is that after the sheet 5 is placed between the sliders 21, the X-direction position of the sheet can be adjusted by pushing the sliders 21, and the X-direction coordinate of the required riveting point can be quickly and accurately found through the center scale 12. The principle is that by inserting the sheet 5 into the fixed scale line of the center scale 12, the X-direction position of the riveting point can be ensured to be accurate.

[0064] There are many specific structures of the Z-axis constraint mechanism 3. In principle, it only needs to be able to switch between the two states of pressing and non-pressing the sheet material 5 without interfering with other operations.

[0065] In the solution of this embodiment, one end of the arm 31 is movably connected to the base 1 via a pin 37, so that the arm 31 can rotate around the pin 37 in the horizontal direction.

[0066] The other end of the arm 31 is provided with a sleeve 38, and the pressing end 34 includes a pressure rod 36 inserted into the sleeve 38, a stopper 32 that cannot pass through the sleeve 38 is fixed at the top of the pressure rod 36, and a pressure pad 35 that can abut against the surface of the sheet 5 is provided at the lower end of the pressure rod 36. A spring 33 that always keeps a compressed state is provided between the pressure pad 35 and the lower surface of the sleeve 38.

[0067] There are many ways to set the specific structure of the Y-axis constraint mechanism 6. In this embodiment, two specific ways are listed:

[0068] The first type: the limiting rod 61 is a cantilever structure (not shown in the figure).

[0069] A slide groove 13 is opened on the base 1 along the Y direction. One end of the limit rod 61 is arranged in the slide groove 13 and can move in the slide groove 13. The end of the limit rod 61 away from the slide groove 13 abuts against the end of the connected sheet 5.

[0070] The limiting rod 61 can abut against the end of each connected sheet 5. The number of limiting rods 61 is determined according to the number of connected sheets 5. Taking the self-piercing riveting of two sheets as an example, two cantilever limiting rods 61 can be provided.

[0071] The limiting rod 61 may preferably be a rod structure with a retractable length.

[0072] The second type: the limit rod is a simply supported beam structure, such as Figure 1 ,3 shown.

[0073] A B chute 15 is provided on the base 1 on the opposite side of the A chute 13 along the Y direction. One end of the limit rod 61 is arranged in the A chute 13, and the other end is arranged in the B chute 15. Both ends of the limit rod 61 move in the A chute 13 and the B chute 15 at the same time, and the middle area of ​​the limit rod 61 abuts against the end of the connected sheet 5. The number of the limit rods 61 is determined according to the number of the connected sheets 5.

[0074] In the above two solutions, the A chute 13 can be set as a whole section or divided into multiple sections. When the A chute 13 is set as a whole section, one of the limit rods 61 can be set as a bent rod to ensure that it can abut against the end face of the sheet 5 (because the two plates are overlapped up and down, there is a height difference between the end faces). When the A chute 13 is set as multiple sections with different heights, the different sections of the A chute 13 can be set at the same height corresponding to the different end faces of the sheet.

[0075] In the above solution, in order to quickly determine the size of the connected area, a scale line 16 is provided at the position of the A chute 13 and / or the B chute 15. According to the size of the riveted area determined in advance, the Y coordinate can be quickly determined by controlling the position of the limit rod 61 on the scale line 16.

[0076] The stop structure 62 can limit the movement of the end of the limiting rod 61 located in the A slide groove 13. Of course, the stop structure 62 can also be set at the B slide groove 15. It can be set according to actual needs.

[0077] The stop structure 62 can also be designed in a variety of ways, and two are listed in this embodiment:

[0078] The first type is that the stop structure 62 includes a threaded section and a handle section fixedly connected to the threaded section, which is threadedly connected to one end of the limit rod located in the A slide groove, and the handle section is locked to the outer surface of the A slide groove to limit the limit rod. Commonly used ones include adjustable locking handle screws and clevis bolts.

[0079] Second, the stop structure 62 is a damping layer disposed on the A slide groove 13 and / or the B slide groove 15, and limits the movement of the limit rod 61 at one end of the slide groove by friction.

[0080] like Figures 6-7As shown, the utility model also provides a connection device, including a frame 7, a lower die 8 mounted on the frame 7, and a punch mechanism 9 mounted on the frame 7 for coining connection or self-piercing riveting, the punch mechanism 9 includes an upper die 10, and also includes the above-mentioned sheet material connection positioning device, the sheet material connection positioning device is fixedly mounted on the frame 7 through a connection ear arranged on the base 1, and the lower die 8 is arranged in the open area of ​​the base 1. Generally, the lower die 8 is located at the center of the rectangular frame.

[0081] During operation, the limit rod 61 can be adjusted to different positions according to the size of the connection area of ​​the sheet 5 to limit the length of the sheet extending into the lower mold in the Y direction, thereby quickly determining the position of the sheet in the Y direction, and then cooperating with the constraints in the X and Z directions, so as to quickly and accurately locate the position where the connection point needs to be made directly below the upper mold 10. When the laboratory needs to produce batches of test pieces, the sheet connection positioning device can bring the advantages of high efficiency and good consistency of connection points.

Claims

1. A plate connection and positioning device, characterized in that: include: A base, wherein the base is provided with an open area in the Z direction for allowing an object to pass through; An X-direction constraint mechanism, adapted to limit the X-direction freedom of the sheet material, the X-direction constraint mechanism comprising a clamping mechanism capable of clamping the sheet material in the X-direction, the clamping mechanism being arranged on the base; A Z-direction constraint mechanism, suitable for limiting the Z-direction freedom of the sheet material, the Z-direction constraint mechanism comprises an arm and a pressing end, one end of the arm is movably connected to the base, and the other end of the arm is connected to the pressing end that can abut against the surface of the sheet material; The Y-axis constraint mechanism is suitable for limiting the Y-axis freedom of the sheet material. The Y-axis constraint mechanism is arranged on the base and close to the sheet material connection area. The Y-axis constraint mechanism includes a limit rod that can move along the base and a stop structure that can stop the limit rod from moving. The limit rod is located in the sheet material connection area, and the limit rod can abut against the end of the connected sheet material.

2. The plate material connection and positioning device according to claim 1, characterized in that: The X-axis restraint mechanism also includes a through slot provided on the base and a notch provided on the base; In the notch area, the through groove is connected to the outside; the sheet material can be placed in the notch; The clamping mechanism comprises a pair of screw rods arranged in the through slots, each screw rod is provided with a slider, and the two sliders can independently rotate with the screw rods to approach or move away from each other, so as to achieve clamping or loosening of the sheet material in the X direction.

3. The plate material connection and positioning device according to claim 2, characterized in that: A center scale is provided in the notch area, the center scale takes the middle position of the notch as the 0 scale line, and two sliders are symmetrically distributed along the middle position of the notch.

4. The plate material connection and positioning device according to claim 1, characterized in that: One end of the arm is movably connected to the base via a pin, so that the arm can rotate around the pin in the horizontal direction; The other end of the arm is provided with a sleeve, and the pressing end includes a pressure rod inserted into the sleeve, a stopper that cannot pass through the sleeve is fixed at the top of the pressure rod, and a pressure pad that can abut against the surface of the sheet is provided at the lower end of the pressure rod; A spring which is always kept in a compressed state is arranged between the pressure pad and the lower surface of the sleeve.

5. The plate material connection and positioning device according to claim 1, characterized in that: A slide groove A is opened on the base along the Y direction, and one end of the limit rod is arranged in the slide groove A and can move in the slide groove A; The limiting rod can abut against the end of each connected sheet material; The stop structure can limit the movement of one end of the limiting rod located in the A sliding groove.

6. The plate material connection and positioning device according to claim 5, characterized in that: The limiting rod is a cantilever structure, and one end thereof away from the A slide groove abuts against the end of the connected sheet material; or, The limit rod is a simply supported beam structure, and a B slide groove is opened along the Y direction on the base on the opposite side of the A slide groove. One end of the limit rod is arranged in the A slide groove, and the other end is arranged in the B slide groove. Both ends of the limit rod move in the A slide groove and the B slide groove at the same time, and the middle area of ​​the limit rod abuts against the end of the connected sheet material.

7. The plate material connection and positioning device according to claim 5, characterized in that: A scale line is provided at the position of the A chute.

8. The plate material connection and positioning device according to claim 5, characterized in that: The stop structure includes a threaded section and a handle section fixedly connected to the threaded section, which is threadedly connected to one end of the limit rod located in the A slide groove through the threaded section, and is locked to the outer surface of the A slide groove through the handle section to limit the limit rod; or, The stop structure is a damping layer arranged on the A slide groove, which limits the movement of the limit rod at one end of the A slide groove through friction.

9. The plate material connection and positioning device according to any one of claims 1 to 8, characterized in that: The X-axis restraint mechanisms are provided in two pairs and are located on opposite sides of the base; The Z-direction constraint mechanism is provided with two pairs, which are respectively located on one side of the X-direction constraint mechanism; The Y-direction constraint mechanisms are provided in two pairs, and are respectively located on two opposite sides of the base where no X-direction constraint mechanisms are provided.

10. A connection device, comprising a frame, a lower die mounted on the frame, and a punch mechanism mounted on the frame suitable for coining connection or self-piercing riveting, wherein the punch mechanism comprises an upper die, characterized in that: It also includes the plate material connection and positioning device according to any one of claims 1 to 9, wherein the plate material connection and positioning device is fixedly mounted on the frame, and the lower mold is arranged in an open area of ​​the base.

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