Novel rear cover riveting tool
By canceling the rear cover positioning shaft on the lower mold seat and using the coordination of the guide sleeve, the first spring and the discharge ejector, the center of the rear cover is automatically directed, and the rivet is riveted under the compression of the guide sleeve and the discharge ejector through a riveting knife, the problems of rivet point offset and poor seams in the prior art are solved, and a more efficient and uniform riveting effect is achieved.
Patent Information
- Application Number
- CN202421200869.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing back cover riveting tooling has problems of inaccuracy and unevenness during positioning and riveting, resulting in rivet point offset and poor joints.
A new type of rear cover riveting tooling was designed, the rear cover positioning shaft on the lower mold seat was eliminated, and the guide sleeve, the first spring and the unloading ejector were used to automatically guide the center of the rear cover, and rivet was riveted under the compression of the guide sleeve and the unloading ejector through a riveting knife.
It improves the accuracy and uniformity of riveting, avoids the offset and poor seam of the rivet point, and shortens the downward stroke of the lower mold seat, reducing the floor space and driving energy consumption.
Smart Images
Figure CN222569039U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rear cover riveting tooling, in particular to a novel rear cover riveting tooling. Background Art
[0002] Most of the existing riveting tools for casing and back cover are as follows Figure 1 As shown, it includes a lower die base, a guide column vertically fixed on the lower die base, an upper die base arranged above the lower die base and connected to the guide column in a vertical sliding direction, two riveting parts and a discharge ejector installed at the bottom of the upper die base, a casing placement seat and a rear cover positioning shaft fixed on the top of the lower die base, and a lifting and lowering drive mechanism for driving the upper die base to move in a vertical direction. During the riveting process, the riveting part directly rivets the rear cover with the casing. However, this technical solution positions the casing and the rear cover on the lower die base through the casing placement seat and the rear cover positioning shaft, which makes it difficult for operators to place and take parts and products, and parts are easily placed inappropriately, resulting in poor seams at the riveting joint between the casing and the rear cover; moreover, the casing and the rear cover are positioned through the lower die, and the positioning is loose and the precision is poor; in addition, during the riveting process, the rear cover and the casing are directly riveted, and the rivet point is easily not in the center of the riveting part, so that the rivet point offset after the casing and the rear cover are riveted is uneven. Utility Model Content
[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a novel rear cover riveting tool.
[0004] The utility model provides a new type of rear cover riveting tool, comprising: an upper die seat, a lower die seat, two guide column assemblies, a first mounting plate, a second mounting plate, a plurality of rivet knives, a discharge ejector, a housing placement seat and a guide sleeve;
[0005] The lower die base is arranged horizontally, and two guide column assemblies are symmetrically fixed on the top surface of the lower die base; the upper die base is arranged horizontally just above the lower die base, and the upper die base and the guide columns in the two guide column assemblies are slidably connected in the vertical direction, and a receiving groove is opened in the middle of the bottom surface of the upper die base;
[0006] The housing placement seat is fixed to the middle of the top surface of the lower mold base, and the housing placement seat is provided with a placement groove for placing the housing; the first mounting plate is fixed to the middle of the bottom surface of the upper mold base and completely covers the receiving groove, and a first through hole is provided at a position corresponding to the first mounting plate and the receiving groove, and the cross-sectional area of the first through hole is smaller than the cross-sectional area of the receiving groove;
[0007] A plurality of rivet cutters are evenly and spacedly arranged on the first mounting plate along the circumference of the first through hole; the second mounting plate is located in the receiving groove, and the first spring is connected between the second mounting plate and the bottom wall of the receiving groove; the guide sleeve is arranged vertically, and the top end of the guide sleeve passes through the first through hole and is fixed on the second mounting plate, and the guide sleeve is slidably connected to the first through hole; the unloading ejector is located inside the guide sleeve, and the top end of the unloading ejector is fixedly connected to the second mounting plate;
[0008] When the first spring and the discharge ejector are in the initial state, the bottom end of the guide sleeve is flush with the bottom end of the discharge ejector, the bottom end of the rivet cutter is higher than the bottom end of the guide sleeve and the height difference between the bottom end of the rivet cutter and the bottom end of the guide sleeve is within a first preset range.
[0009] Preferably, the unloading ejector comprises an ejection member, a second spring and a fourth mounting plate.
[0010] The interior of the guide sleeve is a stepped through hole structure, which includes a first through hole located at the upper part and a second through hole located at the lower part, and the diameter of the first through hole is greater than the diameter of the second through hole;
[0011] The fourth mounting plate is slidably mounted in the first through hole along the vertical direction, and the second spring is fixedly connected between the fourth mounting plate and the second mounting plate;
[0012] The lifting member is slidably installed in the second through hole along the vertical direction, and the top end of the lifting member extends out of the second through hole and is fixedly connected to the fourth mounting plate.
[0013] Preferably, the mounting seat of the rivet cutter is slidably connected to the guide sleeve on the inner side wall in the radial direction of the first through hole.
[0014] Preferably, the mounting seat of the rivet cutter is provided with an arcuate surface on the inner side wall in the radial direction of the first through hole for sliding connection with the guide sleeve.
[0015] Preferably, at least two limiting protrusions are evenly and spaced apart along the circumferential direction on the outer side of the bottom end of the guide sleeve, and there is a gap between the radial outer wall of the limiting protrusion and the radial inner wall of the mounting seat of the rivet cutter of the first through hole, and the limiting protrusion cooperates with the mounting seat of the rivet cutter to limit the upward movement distance of the guide sleeve relative to the rivet cutter within a second preset range, and the second preset range is larger than the first preset range.
[0016] Preferably, the second mounting plate is slidably connected to the inner wall of the first through hole along the vertical direction.
[0017] Preferably, a die handle is fixedly connected to the middle of the top surface of the upper die base, the accommodating groove is a through groove that runs through the top and bottom surfaces of the upper die base, and the bottom of the die handle is fixedly connected to the top end of the first spring.
[0018] Preferably, it also includes a driving mechanism, which includes a third mounting plate and a cylinder, the third mounting plate is connected between the top ends of the two guide column assemblies, the cylinder is installed in the middle of the third mounting plate, and the telescopic rod of the cylinder extends from the bottom of the cylinder and is fixedly connected to the middle of the top surface of the lower mold base or the mold handle.
[0019] In the utility model, the proposed new rear cover riveting tool, compared with the prior art, cancels the rear cover positioning shaft on the lower die seat, which is convenient for operators to place and pick up parts and products. By adding the cooperation of the guide sleeve, the first spring and the unloading ejector, the center of the rear cover can be automatically corrected when the casing and the rear cover are riveted together, ensuring that the position to be riveted is not offset, and the rivet cutter rivets after the guide sleeve and the unloading ejector press the rear cover and the casing, thereby improving the riveting effect and avoiding gaps or uneven sizes of the riveting points; moreover, the downward pressing stroke of the lower die seat is shortened, reducing the space occupied by the tool and the energy consumed by the drive. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The present invention is a schematic structural diagram of a rear cover riveting tool proposed in the prior art.
[0021] Figure 2 The figure is a schematic structural diagram of a new rear cover riveting tool in one embodiment of the utility model.
[0022] Figure 3 for Figure 2 A local enlarged schematic diagram of the . DETAILED DESCRIPTION
[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0024] Reference Figure 2 The utility model proposes a new type of rear cover riveting tool, including: an upper die base 5, a lower die base 1, two guide column assemblies, a first mounting plate 6, a second mounting plate 10, a plurality of rivet knives 7, a discharge ejector, a housing placement seat 4 and a guide sleeve 8;
[0025] The lower die base 1 is arranged horizontally, and two guide column assemblies are symmetrically fixed on the top surface of the lower die base 1; the upper die base 5 is arranged horizontally just above the lower die base 1, and the upper die base 5 and the guide columns 2 of the two guide column assemblies are slidably connected in the vertical direction, and a receiving groove is opened in the middle of the bottom surface of the upper die base 5;
[0026] The housing placement seat 4 is fixed to the middle of the top surface of the lower mold base 1, and the housing placement seat 4 is provided with a placement groove for placing the housing; the first mounting plate 6 is fixed to the middle of the bottom surface of the upper mold base 5 and completely covers the receiving groove, and the first mounting plate 6 is provided with a first through hole at a position corresponding to the receiving groove, and the cross-sectional area of the first through hole is smaller than the cross-sectional area of the receiving groove;
[0027] A plurality of rivet cutters 7 are evenly and spacedly arranged on the first mounting plate 6 along the circumference of the first through hole; the second mounting plate 10 is located in the receiving groove, and the first spring 9 is connected between the second mounting plate 10 and the bottom wall of the receiving groove; the guide sleeve 8 is arranged vertically, and the top end of the guide sleeve 8 passes through the first through hole and is fixed on the second mounting plate 10, and the guide sleeve 8 is slidably connected to the first through hole; the unloading ejector is located inside the guide sleeve 8, and the top of the unloading ejector is fixedly connected to the second mounting plate 10;
[0028] When the first spring 9 and the discharge ejector are in the initial state, the bottom end of the guide sleeve 8 is flush with the bottom end of the discharge ejector, the bottom end of the rivet knife 7 is higher than the bottom end of the guide sleeve 8, and the height difference between the bottom end of the rivet knife 7 and the bottom end of the guide sleeve 8 is within a first preset range.
[0029] In specific implementation, when it is in the initial position, the casing is placed in the placement groove, the rear cover is placed on the casing, and the driving mechanism is used to drive the lower die base 1 to move downward in the vertical direction until the bottom end of the guide sleeve 8 and the bottom end of the discharge ejector are pressed on the rear cover;
[0030] The driving mechanism is used to continue to drive the lower die base 1 to move downward in the vertical direction until the rivet cutter 7 contacts the rear cover; at this time, the first spring 9 and the unloading ejector are both in a compressed state;
[0031] The driving mechanism is used to continue driving the lower die base 1 to move downward in the vertical direction until the riveting of the housing and the rear cover is completed;
[0032] Next, the driving mechanism drives the lower die base 1 to move upward in the vertical direction until the guide sleeve 8 and the discharge ejector continue to press the riveted rear cover and at the same time, the rivet cutter 7 is separated from the rear cover under the elastic force of the guide sleeve 8 and the discharge ejector;
[0033] The driving mechanism is used to drive the lower die base 1 to move upward in the vertical direction until the unloading ejector and the guide sleeve 8 are separated from the rear cover at the same time;
[0034] Next, the driving mechanism is used to drive the lower die base 1 to move upward in the vertical direction until the upper die base 5 returns to the initial position, and the staff takes out the product.
[0035] Compared with the prior art, the utility model cancels the rear cover positioning shaft on the lower die base 1, which is convenient for operators to place and pick up parts and products. By adding the cooperation of the guide sleeve 8, the first spring 9 and the unloading ejector, the center of the rear cover can be automatically corrected when the casing and the rear cover are riveted together, which is convenient for the rivet cutter 7 to perform riveting after the guide sleeve 8 and the unloading ejector press the rear cover and the casing, thereby improving the riveting effect and avoiding gaps or uneven sizes of riveting points; moreover, the downward pressing stroke of the lower die base 1 is shortened, reducing the space occupied by the tooling and the energy consumed by the drive.
[0036] In this embodiment, the unloading ejector includes an ejection member 12, a second spring 13 and a fourth mounting plate 3;
[0037] The interior of the guide sleeve 8 is a stepped through hole structure, which includes a first through hole located at the upper part and a second through hole located at the lower part, and the diameter of the first through hole is larger than the diameter of the second through hole;
[0038] The fourth mounting plate 3 is slidably mounted in the first through hole along the vertical direction, and the second spring 13 is fixedly connected between the fourth mounting plate 3 and the second mounting plate 10;
[0039] The lifting member 12 is slidably installed in the second through hole along the vertical direction, and the top end of the lifting member 12 extends out of the second through hole and is fixedly connected to the fourth mounting plate 3 .
[0040] Wherein, in the initial state, both the first spring and the second spring are in a compressed state.
[0041] In this embodiment, a guide sleeve for sliding connection with the upper die base 5 is provided on the guide column 2 .
[0042] In this embodiment, the mounting seat of the rivet cutter 7 is slidably connected to the guide sleeve 8 at the inner side wall in the radial direction of the first through hole.
[0043] In this way, the guide sleeve 8 can automatically align the center when sliding up and down, thereby avoiding the deviation of the rivet points after the riveting of the housing and the back cover, and ensuring that the rivet points are uniform in size.
[0044] In a further embodiment, the mounting seat of the rivet cutter 7 is provided with an arc surface on the inner side wall in the radial direction of the first through hole for sliding connection with the guide sleeve 8 .
[0045] Such an arrangement can increase the contact area between the mounting seat of the rivet cutter 7 and the guide sleeve 8, further improve the effect of automatic centering, effectively avoid the deviation of the rivet points, and further ensure that the rivet points are uniform in size.
[0046] like Figure 2 and Figure 3As shown, in a further embodiment, at least two limiting protrusions are evenly and spaced apart along the circumferential direction on the outer side of the bottom end of the guide sleeve 8, and there is a gap between the radial outer wall of the limiting protrusion and the radial inner wall of the mounting seat of the rivet knife 7 of the first through hole, and the limiting protrusion cooperates with the mounting seat of the rivet knife 7 to limit the upward movement distance of the guide sleeve 8 relative to the rivet knife 7 within a second preset range, and the second preset range is larger than the first preset range, thereby limiting the force of the guide sleeve 8 to press the back cover.
[0047] In this embodiment, the second mounting plate 10 is slidably connected to the inner wall of the first through hole in the vertical direction to further ensure the automatic guiding effect of the guide sleeve 8, effectively avoid the deviation of the rivet points, and further ensure the uniform size of the rivet points.
[0048] In order to facilitate the installation of the second mounting plate 10 and the first spring 9, in a further specific embodiment, a mold handle 11 is also fixedly connected to the middle of the top surface of the upper mold base 5, and the accommodating groove is a through groove that runs through the top and bottom surfaces of the upper mold base 5, and the bottom of the mold handle 11 is fixedly connected to the top of the first spring 9.
[0049] In this embodiment, a driving mechanism is also included, and the driving mechanism is used to drive the lower mold base 1 to slide in the vertical direction.
[0050] In one specific embodiment, the driving mechanism includes a third mounting plate and a cylinder. The third mounting plate is connected between the top ends of the guide columns 2 of the two guide column assemblies. The cylinder is installed in the middle of the third mounting plate. The telescopic rod of the cylinder extends from the bottom of the cylinder and is fixedly connected to the middle of the top surface of the lower mold base 1 or the mold handle 11. When the cylinder is working, the telescopic rod of the cylinder drives the lower mold base 1 to slide in the vertical direction.
[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A new type of rear cover riveting tool, characterized in that: include: An upper die base (5), a lower die base (1), two guide column assemblies, a first mounting plate (6), a second mounting plate (10), a plurality of rivet cutters (7), a discharge ejector, a casing placement seat (4) and a guide sleeve (8); The lower die base (1) is arranged horizontally, and the two guide column assemblies are symmetrically fixed on the top surface of the lower die base (1); the upper die base (5) is arranged horizontally just above the lower die base (1), and the upper die base (5) and the guide columns (2) in the two guide column assemblies are slidably connected in the vertical direction, and a receiving groove is provided in the middle of the bottom surface of the upper die base (5); The casing placement seat (4) is fixed at the middle of the top surface of the lower die seat (1), and the casing placement seat (4) is provided with a placement groove for placing the casing; the first mounting plate (6) is fixed at the middle of the bottom surface of the upper die seat (5) and completely covers the receiving groove, and a first through hole is provided at a position corresponding to the receiving groove of the first mounting plate (6), and the cross-sectional area of the first through hole is smaller than the cross-sectional area of the receiving groove; A plurality of rivet cutters (7) are evenly and spacedly arranged on the first mounting plate (6) along the circumference of the first through hole; the second mounting plate (10) is located in the receiving groove, and the first spring (9) is connected between the second mounting plate (10) and the bottom wall of the receiving groove; the guide sleeve (8) is arranged vertically, and the top end of the guide sleeve (8) passes through the first through hole and is fixed to the second mounting plate (10), and the guide sleeve (8) is slidably connected to the first through hole; the discharge ejector is located inside the guide sleeve (8), and the top end of the discharge ejector is fixedly connected to the second mounting plate (10); When the first spring (9) and the discharge ejector are in an initial state, the bottom end of the guide sleeve (8) is flush with the bottom end of the discharge ejector, the bottom end of the rivet cutter (7) is higher than the bottom end of the guide sleeve (8), and the height difference between the bottom end of the rivet cutter (7) and the bottom end of the guide sleeve (8) is within a first preset range.
2. The new rear cover riveting tool according to claim 1 is characterized in that: The unloading ejector comprises a lifting member (12), a second spring (13) and a fourth mounting plate (3); the interior of the guide sleeve (8) is a stepped through hole structure, the stepped through hole structure comprises a first through hole located at the upper part and a second through hole located at the lower part, the diameter of the first through hole being greater than the diameter of the second through hole; the fourth mounting plate (3) is slidably mounted in the first through hole along a vertical direction, the second spring (13) is fixedly connected between the fourth mounting plate (3) and the second mounting plate (10); the lifting member (12) is slidably mounted in the second through hole along a vertical direction, and the top end of the lifting member (12) extends out of the second through hole and is fixedly connected to the fourth mounting plate (3).
3. The new rear cover riveting tool according to claim 1 is characterized in that: The mounting seat of the rivet cutter (7) is slidably connected to the guide sleeve (8) on the inner side wall in the radial direction of the first through hole.
4. The new rear cover riveting tool according to claim 3 is characterized in that: The mounting seat of the rivet cutter (7) is provided with an arc surface on the inner side wall in the radial direction of the first through hole for sliding connection with the guide sleeve (8).
5. The new rear cover riveting tool according to claim 3 is characterized in that: At least two limiting protrusions are evenly and spaced apart along the circumferential direction on the outer side of the bottom end of the guide sleeve (8); a gap exists between the radial outer wall of the limiting protrusion and the radial inner wall of the mounting seat of the rivet cutter (7) of the first through hole; the limiting protrusion cooperates with the mounting seat of the rivet cutter (7) to limit the upward movement distance of the guide sleeve (8) relative to the rivet cutter (7) within a second preset range, and the second preset range is greater than the first preset range.
6. The new rear cover riveting tool according to claim 3 is characterized in that: The second mounting plate (10) is slidably connected to the inner wall of the first through hole along the vertical direction.
7. The new rear cover riveting tool according to claim 1 is characterized in that: A die handle (11) is also fixedly connected to the middle of the top surface of the upper die base (5); the accommodating groove is a through groove that penetrates the top and bottom surfaces of the upper die base (5); and the bottom of the die handle (11) is fixedly connected to the top end of the first spring (9).
8. The new rear cover riveting tool according to claim 1 or 7, characterized in that: The invention also comprises a driving mechanism, which comprises a third mounting plate and a cylinder. The third mounting plate is connected between the top ends of the guide columns (2) of the two guide column assemblies. The cylinder is mounted in the middle of the third mounting plate. The telescopic rod of the cylinder extends from the bottom of the cylinder and is fixedly connected to the middle of the top surface of the lower die base (1) or the die handle (11).