A mobile lower die structure of a press riveter

Abstract

The utility model discloses a kind of mobile lower die structures of riveting press, the mobile lower die structure of this riveting press includes lower die plate, the middle part of lower die plate is equipped with lifting ring flanging lower die, rear end is equipped with cylinder joint seat, front end is provided with rectangular opening slot, at least two first screw holes are provided in rectangular opening slot, the front side of lifting ring flanging lower die is provided with lower avoiding opening for placing workpiece.The mobile lower die structure of this riveting press is used as the common platform of bushing press mounting and flanging riveting, can be connected with cylinder and move forward and backward under the guidance of linear slide rail to switch station, realize the effect of dual use, improve the processing efficiency of bushing press mounting and flanging riveting.

Description

Technical Field

[0001] This utility model relates to the field of riveting machines, and more specifically to the moving lower die structure of a riveting machine. Background Technology

[0002] The shock absorber is a core component of the car suspension system. It is a vibration damping device whose main function is to attenuate the vibration caused by road impact, improve ride comfort and handling safety. The ends of the car shock absorber need to be pressed into the hanging ring with rubber bushings and then subjected to flanging and riveting operations.

[0003] The patented CN211102558U shock absorber lug rubber bushing press machine uses pneumatic components for power. An electric valve is installed between the pneumatic components and the air pump. The electric valve is connected to the valve controller to control the pneumatic components. A lower pressure rod is connected to the lower end of the pneumatic component's push shaft through a lower pressure rod connecting device. The lower pressure rod can be replaced with different specifications of lower pressure rod according to the different sizes of the rubber bushing, avoiding deformation and cracking of the rubber bushing due to excessive size difference, thus preventing it from losing its function.

[0004] The vibration damper lifting lug rubber bushing press-fitting machine adopts single-station press-fitting and does not have a flanged riveting station. Therefore, a moving lower mold structure for the press-fitting machine that can achieve dual-station sharing is required. Utility Model Content

[0005] The purpose of this utility model is to provide a movable lower die structure for a riveting machine. This movable lower die structure serves as a shared platform for bushing pressing and flanging riveting. It can be connected to a cylinder and moved back and forth to switch work positions under the guidance of a linear slide rail, achieving the effect of dual use on one platform. This improves the processing efficiency of bushing pressing and flanging riveting, thereby increasing the production efficiency of automotive shock absorbers.

[0006] To achieve the above objectives, this utility model provides a movable lower die structure for a riveting machine. The movable lower die structure includes a lower template, a lifting ring flanged lower die installed in the middle of the lower template, a cylinder connector seat installed at the rear end, and a rectangular opening groove provided at the front end. At least two first screw holes are provided in the rectangular opening groove, and a lower clearance opening for placing the workpiece is provided on the front side of the lifting ring flanged lower die.

[0007] Preferably, limit blocks are symmetrically arranged on both sides of the rear end of the lower template.

[0008] Preferably, the lower template has grooves on both sides for embedding the limiting block, the limiting block has a countersunk hole, the lower template has a second screw hole corresponding to the countersunk hole, and a screw is provided in the countersunk hole to be screwed into the second screw hole.

[0009] Preferably, the lower template has multiple sets of holes arranged in a rectangular pattern around the lower mold of the lifting ring flange, and each set of holes includes multiple mounting holes.

[0010] Preferably, the lower template is provided with a positioning groove, and the bottom of the lower mold for the lifting ring flange is provided with a positioning plate that is embedded and cooperates with the positioning groove. The two sides of the positioning plate are fixed by mold pressure plates.

[0011] Preferably, the mold platen includes a pressure block and a pressure plate fixed to one side of the pressure block, and the pressure plate is equipped with an indexing pin that is locked to the corresponding pin hole on the positioning plate.

[0012] Preferably, the cylinder connector seat is provided with a rectangular hole that runs through the front and back, and a positioning hole that runs vertically through the rectangular hole, and a positioning pin is inserted into the positioning hole.

[0013] Preferably, the lower template is provided with a water passage hole that communicates with the inner cavity of the lower mold of the lifting ring flange, a water passage sleeve is screwed to the bottom of the water passage hole, and an O-ring is provided between the water passage sleeve and the water passage hole.

[0014] According to the above technical solution, the present invention provides a moving lower die structure for a riveting machine. The moving lower die structure for the riveting machine includes a lower template, a lifting ring flanged lower die installed in the middle of the lower template, a cylinder connector seat installed at the rear end, and a rectangular opening groove provided at the front end. At least two first screw holes are provided in the rectangular opening groove, and a lower clearance opening for placing the workpiece is provided on the front side of the lifting ring flanged lower die.

[0015] The moving lower die structure of this riveting machine has the following advantages: 1. It can be quickly connected to the cylinder that pushes the lower die plate forward and backward through the cylinder joint seat installed at the rear end; 2. The lower die with the lifting ring flange can position the car shock absorber lifting ring in it, and the upper die groove under the guide die assembly can further clamp and position the lifting ring. The lower clearance opening can effectively avoid the end rod of the car shock absorber connected to the lifting ring, so that the lifting ring can be better clamped and positioned; 3. The rectangular opening slot set at the front end facilitates the positioning and installation of the base of the auxiliary support assembly, so as to better support the main body of the car shock absorber.

[0016] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1This is a schematic diagram of the overall structure of a preferred embodiment of the moving lower die structure of a riveting machine;

[0019] Figure 2 This is a side view of a preferred embodiment of the moving lower die structure of a riveting machine;

[0020] Figure 3 This is a front view schematic diagram of a preferred embodiment of the moving lower die structure of a riveting machine;

[0021] Figure 4 This is a top view schematic diagram of a preferred embodiment of the moving lower die structure of a riveting machine;

[0022] Figure 5 This is a schematic diagram of the overall assembly structure of the riveting machine.

[0023] Explanation of reference numerals in the attached figures

[0024] 1- Riveting machine mold frame structure; 101- Connecting slider; 102- Linear slide rail; 2- Moving lower mold structure; 201- Lower template; 202- Limiting block; 203- Mold pressure plate; 204- Indexing pin; 205- Cylinder connector seat; 206- Positioning pin; 207- Lifting ring flanged lower mold; 208- Water jacket; 209- O-ring seal; 210- Rectangular hole; 211- Lower clearance opening; 212- Rectangular... 213-First screw hole; 214-Mounting hole; 215-Counterhead hole; 216-Groove; 217-Positioning plate; 218-Positioning groove; 219-Water passage hole; 220-Screw; 221-Pin hole; 3-Bushing press-fitting mold assembly; 4-Flanging press-fitting mold assembly; 5-Guide press-fitting mold assembly; 6-Reverse press-fitting mechanism; 7-Auxiliary support assembly; 8-Cylinder; 9-Front-end electric cylinder; 10-Rear-end electric cylinder. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0026] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0027] See Figure 1-4The moving lower die structure 2 of the riveting machine shown includes a lower template 201, a lifting ring flanged lower die 207 installed in the middle of the lower template 201, a cylinder connector seat 205 installed at the rear end, and a rectangular opening slot 212 provided at the front end. At least two first screw holes 213 are provided in the rectangular opening slot 212. The front side of the lifting ring flanged lower die 207 is provided with a lower clearance opening 211 for placing the workpiece.

[0028] See Figure 5 The assembly structure diagram of the bushing riveting machine shown is as follows: In the assembly structure of the bushing riveting machine, the movable lower die structure 2 is mounted on the linear slide rail 102 via multiple connecting sliders 101. A cylinder 8 is mounted on the cylinder 8 mounting plate, and the cylinder 8 is connected to the movable lower die structure 2, enabling it to switch between the bushing pressing station and the riveting station. The guide die assembly 5 has a portal frame structure, spanning above the bushing pressing station. Guide rods on both sides slide and extend within corresponding bushings. The movable lower die structure 2 is provided with a lower die groove for positioning the workpiece, and the guide die assembly 5 is correspondingly provided with an upper die groove for positioning the workpiece. After the guide die assembly 5 moves downwards, the lower die groove and the upper die groove... The mold groove can close the mold and position the workpiece within it. The preparation work is completed by placing the bushing to be pressed into the positioning through hole on the upper mold groove. Then, the front electric cylinder 9 drives the bushing pressing mold assembly 3 to slide downwards, pressing the bushing into the workpiece through the corresponding pressure rod. Since the flange at the bottom of the bushing needs to be pressed below the workpiece hole, the upper end of the bushing needs to be over-pressed. After over-pressing, the upper push shaft on the reverse pressing mechanism 6 is used to push the over-pressed bushing back to the normal position, pressing out the upper flange of the bushing. Finally, the cylinder 8 pulls the lower mold structure 2 backwards, moving it to the riveting station. The rear electric cylinder 10 drives the flanging and riveting mold assembly 4 to slide downwards for riveting. When the workpiece is an automotive shock absorber, the installed auxiliary support assembly 7 supports the main body of the automotive shock absorber and positions the shock absorber's lifting ring between the upper and lower mold grooves.

[0029] Therefore, the riveting machine moving lower mold structure 2 in this utility model can be quickly connected to the cylinder 8 that pushes the lower template 201 to move back and forth through the cylinder joint seat 205 installed at the rear end; the lifting ring flange lower mold 207 can position the car shock absorber lifting ring in it, and cooperate with the upper mold groove under the guide mold assembly 5 to further clamp and position the lifting ring; the lower clearance opening 211 can effectively avoid the end rod of the car shock absorber connected to the lifting ring, so that the lifting ring is better clamped and positioned; the rectangular opening slot 212 set at the front end facilitates the positioning and installation of the base of the auxiliary support assembly 7, so as to better support the main body of the car shock absorber.

[0030] In this embodiment, limit blocks 202 are symmetrically arranged on both sides of the rear end of the lower template 201. In conjunction, a hydraulic buffer is provided at the front and rear ends of both sides of the linear slide rail 102 to cooperate with the limit blocks 202 and achieve buffering and stopping after the lower template 201 moves into position.

[0031] In this embodiment, the lower template 201 has grooves 216 on both sides for embedding the limiting block 202. The limiting block 202 has a countersunk hole 215, and the side of the lower template 201 has a second screw hole corresponding to the countersunk hole 215. A screw 220 is provided in the countersunk hole 215 and screwed into the second screw hole. With this arrangement, after the limiting block 202 is inserted into the groove 216 for positioning, it is then installed and fixed by screwing it into the second screw hole with the screw 220.

[0032] In this embodiment, the lower template 201 has multiple sets of holes arranged in a rectangular pattern around the lower mold 207 of the lifting ring flange. Each set of holes includes multiple mounting holes 214. Each set of holes has four mounting holes 214, and bolts for connecting the corresponding connecting sliders 101 are installed in the four mounting holes 214.

[0033] In this embodiment, the lower template 201 is provided with a positioning groove 218, and the bottom of the lower mold 207 for the lifting ring flange is provided with a positioning plate 217 that fits into the positioning groove 218. The two sides of the positioning plate 217 are fixed by mold pressure plates 203. During installation, the positioning plate 217 of the lower mold 207 for the lifting ring flange is first positioned in the positioning groove 218 to ensure that the position is aligned. Then, the mold pressure plates 203 on both sides are installed by bolts and pressed onto the positioning plate 217.

[0034] In this embodiment, the mold pressure plate 203 includes a pressure block and a pressure plate fixed to one side of the pressure block. An indexing pin 204 is installed on the pressure plate and locked to the corresponding pin hole 221 on the positioning plate 217. This arrangement, using the indexing pin 204 to engage with the corresponding pin hole 221 on the positioning plate 217 for locking, prevents the positioning plate 217 from rotating.

[0035] In this embodiment, the cylinder connector seat 205 is provided with a rectangular hole 210 that runs through the front and rear, and a positioning hole that runs vertically through the rectangular hole 210. A positioning pin 206 is inserted into the positioning hole. During installation, the shaft end of the cylinder 8 is inserted into the rectangular hole 210, and then the positioning pin 206 is sequentially inserted into the positioning hole and the shaft end of the cylinder 8 to achieve a quick connection between the positioning pin and the shaft end of the cylinder 8.

[0036] In this embodiment, the lower template 201 is provided with a water passage hole 219 communicating with the inner cavity of the lower mold 207 for the lifting ring flange. A water passage sleeve 208 is screwed to the bottom of the water passage hole 219, and an O-ring seal 209 is provided between the water passage sleeve 208 and the water passage hole 219. Through the water passage hole 219 and the water passage sleeve 208, the upper top shaft provided on the reverse pressing mechanism 6 below can pass through the riveting machine mold frame structure 1, the water passage sleeve 208 and the water passage hole 219 in sequence, pushing up the bushing that has been excessively pressed down, so that the bushing is properly fitted.

[0037] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0039] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A movable lower die structure for a riveting machine, characterized in that, The moving lower die structure (2) of the riveting machine includes a lower template (201), a lifting ring flange lower die (207) is installed in the middle of the lower template (201), a cylinder connector seat (205) is installed at the rear end, and a rectangular opening slot (212) is provided at the front end. At least two first screw holes (213) are provided in the rectangular opening slot (212), and a lower clearance opening (211) for placing the workpiece is provided on the front side of the lifting ring flange lower die (207).

2. The moving lower die structure of the riveting machine according to claim 1, characterized in that, Limiting blocks (202) are symmetrically arranged on both sides of the rear end of the lower template (201).

3. The moving lower die structure of the riveting machine according to claim 2, characterized in that, The lower template (201) has grooves (216) on both sides for embedding the limiting block (202). The limiting block (202) has a countersunk hole (215). The side of the lower template (201) has a second screw hole corresponding to the countersunk hole (215). The countersunk hole (215) has a screw (220) that is screwed into the second screw hole.

4. The moving lower die structure of the riveting machine according to claim 1, characterized in that, The lower template (201) is provided with multiple sets of holes arranged in a rectangular pattern around the lower mold (207) of the lifting ring flange, and each set of holes includes multiple mounting holes (214).

5. The moving lower die structure of the riveting machine according to claim 1, characterized in that, The lower template (201) is provided with a positioning groove (218), and the bottom of the lifting ring flange lower mold (207) is provided with a positioning plate (217) that is embedded and cooperates with the positioning groove (218). The two sides of the positioning plate (217) are fixed by the mold pressure plate (203).

6. The moving lower die structure of the riveting machine according to claim 5, characterized in that, The mold plate (203) includes a pressure block and a pressure plate fixed to one side of the pressure block. The pressure plate is equipped with an indexing pin (204) that is locked to the corresponding pin hole (221) on the positioning plate (217).

7. The moving lower die structure of the riveting machine according to claim 1, characterized in that, The cylinder connector seat (205) is provided with a rectangular hole (210) that runs through the front and back, and a positioning hole that runs vertically through the rectangular hole (210), and a positioning pin (206) is inserted into the positioning hole.

8. The moving lower die structure of the riveting machine according to claim 1, characterized in that, The lower template (201) is provided with a water passage hole (219) that communicates with the inner cavity of the lower mold (207) for the lifting ring flange. A water passage sleeve (208) is screwed to the bottom of the water passage hole (219), and an O-ring (209) is provided between the water passage sleeve (208) and the water passage hole (219).

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