A bush press-fit module assembly

Abstract

The utility model discloses a kind of bushing press-fit mould components, the bushing press-fit mould component includes guide sleeve base plate, both ends of the guide sleeve base plate are equipped with guide sleeve, the upper side of the middle part of the guide sleeve base plate is sequentially provided with force sensor and electric cylinder connecting rod, the lower side of the middle part of the guide sleeve base plate is sequentially provided with positioning flange, press-fit mould quick-lock clamp assembly and press head.The bushing press-fit mould component is connected with front end electric cylinder by electric cylinder connecting rod, can stably move in vertical direction under the guidance of two guide sleeves arranged symmetrically, realizes the bushing is pressed into automobile shock absorber lifting ring downwards.

Description

Technical Field

[0001] This utility model relates to the field of press riveting, and more specifically to a bushing press-fitting mold assembly. 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] CN115609265A discloses a pressing device for rubber bushings of automotive control arms; the device includes an automotive control arm horizontally clamped on a pressing platform by positioning and clamping elements, the control arm having two pressing areas, namely a front pressing area and a rear pressing area; a linear reciprocating drive vertically disposed on the pressing platform along the short side direction; a first pressing unit vertically fixedly disposed at the output end of the linear reciprocating drive; a second pressing unit disposed on the other side of the pressing platform opposite to the first pressing unit and facing the rear pressing area; a first limiting support unit fixedly disposed on the lower surface of the pressing platform and coaxially disposed with the front pressing area; and a second limiting support unit slidably disposed on the pressing platform and coaxially disposed with the rear pressing drive.

[0004] The first and second pressing units of the automotive control arm rubber bushing pressing equipment do not have guide sleeve structures for guidance. After too many pressing cycles, loosening occurs between the cylinder and the shaft, resulting in pressing misalignment, poor pressing effect of the bushing, and high rework rate. Utility Model Content

[0005] The purpose of this utility model is to provide a bushing press-fitting mold assembly. This bushing press-fitting mold assembly is connected to the front-end electric cylinder through an electric cylinder connecting rod. Under the guidance of two symmetrically arranged guide sleeves, it can move stably in the vertical direction, thereby pressing the bushing downward into the car shock absorber ring.

[0006] To achieve the above objectives, this utility model provides a bushing press-fitting mold assembly, which includes a guide sleeve seat plate, with guide sleeves installed at both ends of the guide sleeve seat plate. A force sensor and an electric cylinder connecting rod are sequentially arranged on the upper middle part of the guide sleeve seat plate, and a positioning flange, a press-fitting mold quick-locking clamp assembly, and a press-fitting head are sequentially arranged on the lower middle part of the guide sleeve seat plate.

[0007] Preferably, a quick connector is installed at the upper end of the force sensor, a T-slot is provided inside the quick connector, the side of the T-slot is set as an opening, and a T-shaped plug is provided at the lower end of the electric cylinder connecting rod.

[0008] Preferably, the force sensor is surrounded by a plurality of countersunk holes, and a screw is provided in the countersunk holes to pass through the guide sleeve seat plate and be screwed to the positioning flange.

[0009] Preferably, the guide sleeve base plate is provided with first screw holes at both ends, the upper outer side of the guide sleeve is provided with external threads that are screwed into the first screw holes, and the guide sleeve is provided with a limit ring.

[0010] Preferably, the press mold quick-lock clamp assembly includes a threaded sleeve rotatably disposed on the upper end of the press head, and a stud screwed to the bottom of the positioning flange is fixedly connected to the threaded sleeve, and the lower end of the stud is provided with an external thread.

[0011] Preferably, the head of the pressing head is provided with a positioning plate located within the threaded sleeve; the bottom of the threaded sleeve is provided with a positioning sliding hole passing through the upper end of the pressing head; and the bottom of the pressing head is provided with a frustoconical portion and a sleeve rod.

[0012] Preferably, the upper end of the electric cylinder connecting rod is provided with a second screw hole.

[0013] According to the above technical solution, the present invention provides a bushing press-fitting mold assembly, which includes a guide sleeve seat plate, with guide sleeves installed at both ends of the guide sleeve seat plate, a force sensor and an electric cylinder connecting rod arranged sequentially on the upper middle part of the guide sleeve seat plate, and a positioning flange, a press-fitting mold quick-locking clamp assembly and a press-fitting head arranged sequentially on the lower middle part of the guide sleeve seat plate.

[0014] The bushing press-fitting mold assembly has the following advantages: 1. It is connected to the front-end electric cylinder via the electric cylinder connecting rod, and can move stably in the vertical direction under the guidance of two symmetrically arranged guide sleeves, so as to press the bushing downward into the car shock absorber ring; 2. By setting a force sensor between the electric cylinder connecting rod and the guide sleeve seat plate, the downward pressure can be detected in real time, avoiding excessive pressure that could cause the bushing to burst; 3. The press-fitting mold quick-locking clamp assembly is used to quickly assemble the press-fitting head, improving assembly efficiency.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the bushing press-fitting mold assembly;

[0018] Figure 2This is a front view schematic diagram of a preferred embodiment of the bushing press-fitting mold assembly;

[0019] Figure 3 This is a schematic diagram of a preferred embodiment of the press-fitting mold quick-locking fixture;

[0020] Figure 4 This is a schematic diagram of a preferred embodiment of a rubber bushing for an automotive shock absorber.

[0021] Figure 5 This is a schematic diagram of the overall assembly structure of the riveting machine.

[0022] Explanation of reference numerals in the attached figures

[0023] 1-Riveting machine mold frame structure; 101-Column; 2-Moving lower mold structure; 301-Guide sleeve seat plate; 302-Force sensor; 303-Quick connector; 304-Electric cylinder connecting rod; 305-Guide sleeve; 306-Positioning flange; 307-Pressure fitting mold quick lock clamp assembly; 308-Pressure fitting head; 309-T-shaped insert; 310-T-slot; 311-Counterhead hole; 312-Frustum section; 313-Sleeve rod; 314-Stud; 315-Threaded sleeve; 316-External thread; 317-Positioning plate; 318-Second threaded hole; 319-Limiting ring; 4-Flanged riveting mold assembly; 5-Guide pressing mold assembly; 6-Reverse pressing mechanism; 7-Auxiliary support assembly; 8-Cylinder; 9-Front-end electric cylinder; 10-Rear-end electric cylinder; 1101-Inner tube of bushing; 1102-Outer damping rubber sleeve of bushing. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] See Figure 1-3 The bushing press-fitting mold assembly shown includes a guide sleeve seat plate 301, with guide sleeves 305 installed at both ends of the guide sleeve seat plate 301. A force sensor 302 and an electric cylinder connecting rod 304 are sequentially arranged on the upper middle part of the guide sleeve seat plate 301, and a positioning flange 306, a press-fitting mold quick-locking clamp assembly 307, and a press-fitting head 308 are sequentially arranged on the lower middle part of the guide sleeve seat plate 301.

[0027] See Figure 5The 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 a linear slide rail via multiple connecting sliders. A cylinder 8 is mounted on the cylinder 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 is a portal-shaped structure, spanning above the bushing pressing station. The guide rods on both sides slide and extend within the 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 provided with a corresponding upper die groove for positioning the workpiece. After the guide die assembly 5 moves down, the lower die groove and the upper die groove can be engaged. The mold positions the workpiece within it, and the bushing to be pressed is placed into the positioning through hole on the upper mold groove to complete the preparation work. Then, the front electric cylinder 9 drives the bushing pressing mold assembly to slide downward, and the corresponding pressing head 308 presses the bushing into the workpiece. Since the flange at the bottom of the bushing needs to be pressed below the hole in the workpiece, the upper end of the bushing needs to be overpressed. After overpressing the bushing, the upper top shaft on the reverse pressing mechanism 6 is used to push the overpressed bushing back to the normal position, so that the upper flange of the bushing is pressed out. Finally, the cylinder 8 pulls the lower mold structure 2 to move the lower mold structure 2 to the riveting station, and the rear electric cylinder 10 drives the flanging and riveting mold assembly 4 to slide downward for riveting. When the workpiece is an automobile shock absorber, the main body of the automobile shock absorber is supported by the installed auxiliary support assembly 7, and the lifting ring of the automobile shock absorber is positioned between the upper and lower mold grooves.

[0028] Therefore, the bushing press-fitting mold assembly of this utility model is connected to the front-end electric cylinder 9 via the electric cylinder connecting rod 304. Guided by the two symmetrically arranged guide sleeves 305, it can move stably in the vertical direction, thus pressing the bushing downward into the car shock absorber ring. A force sensor 302 is installed between the electric cylinder connecting rod 304 and the guide sleeve seat plate 301 to detect the downward pressure in real time, preventing excessive pressure from bursting the bushing. The press-fitting mold quick-lock clamp assembly 307 is used to quickly assemble the press-fitting head 308, improving assembly efficiency. The working process of using this bushing press-fitting mold assembly is as follows: the front-end electric cylinder 9 is connected to the electric cylinder connecting rod 304, and the electric cylinder drives the entire bushing press-fitting mold assembly to move stably downward under the guidance of the two side columns 101 and the guide sleeves 305. The press-fitting head 308 acts as... Figure 4 The upper end of the inner tube 1101 in the middle of the bushing pushes the bushing down, so that the outer damping rubber sleeve 1102 of the bushing is completely pushed into the lifting ring.

[0029] In this embodiment, a quick connector 303 is installed on the upper end of the force sensor 302. A T-slot 310 is provided inside the quick connector 303, with an opening on the side of the T-slot 310. A T-shaped insert 309 is provided at the lower end of the electric cylinder connecting rod 304. A screw is provided at the lower end of the quick connector 303, which can be screwed into a pre-drilled hole on the force sensor 302, enabling a quick connection. The lower end of the electric cylinder connecting rod 304 can also be quickly connected by laterally inserting it into the T-slot 310 from the opening.

[0030] In this embodiment, the force sensor 302 is surrounded by multiple countersunk holes 311, each containing a screw that passes through the guide sleeve base plate 301 and is then screwed onto the positioning flange 306. Simultaneously, the guide sleeve base plate 301 also has corresponding through holes for the screw to pass through and then be screwed into a third screw hole on the upper surface of the positioning flange 306, thus enabling the installation of the force sensor 302 and the positioning flange 306.

[0031] In this embodiment, the guide sleeve base plate 301 has first screw holes at both ends, and the upper outer side of the guide sleeve 305 has an external thread 316 that engages with the first screw holes. A limiting ring 319 is provided on the guide sleeve 305. With this configuration, the upper end of the guide sleeve 305 can be rotatably installed into the first screw hole, and the limiting ring 319 restricts the upward spiral stroke, thus controlling the screw connection height.

[0032] In this embodiment, the quick-lock clamping fixture assembly 307 includes a threaded sleeve 315 rotatably mounted on the upper end of the press-fitting head 308. A stud 314, screwed to the threaded sleeve 315, is fixedly connected to the bottom of the positioning flange 306. The stud 314 has an external thread 316 at its lower end. This arrangement, by screwing the threaded sleeve 315 onto the stud 314, secures the upper end of the press-fitting head 308 within the quick-lock clamping fixture assembly 307, achieving a rapid connection.

[0033] In this embodiment, the head of the pressing head 308 is provided with a positioning plate 317 located within the threaded sleeve 315; the bottom of the threaded sleeve 315 is provided with a positioning sliding hole passing through the upper end of the pressing head 308; the bottom of the pressing head 308 is provided with a frustum-shaped portion 312 and a sleeve rod 313. The pressing head 308 has a T-shaped structure. The upper positioning plate 317 is pressed and fixed between the stud 314 and the bottom surface of the threaded sleeve 315. The diameter of the sleeve rod 313 is not greater than the bottom diameter of the frustum-shaped portion 312, serving as a guide for insertion. The upper diameter of the frustum-shaped portion 312 is greater than the bottom diameter. The port diameter of the inner tube 1101 of the bushing is smaller than the upper diameter of the frustum-shaped portion 312 but larger than the bottom diameter of the frustum-shaped portion 312, allowing it to be pushed downwards.

[0034] In this embodiment, a second threaded hole 318 is provided at the upper end of the electric cylinder connecting rod 304. The second threaded hole 318 matches the threaded post provided on the bottom cylinder shaft of the front electric cylinder 9, and the two can be screwed together to achieve the purpose of quick installation.

[0035] 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.

[0036] 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.

[0037] 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 bushing press-fitting mold assembly, characterized in that, The bushing press-fitting mold assembly includes a guide sleeve seat plate (301), with guide sleeves (305) installed at both ends of the guide sleeve seat plate (301). A force sensor (302) and an electric cylinder connecting rod (304) are sequentially arranged on the upper middle part of the guide sleeve seat plate (301), and a positioning flange (306), a press-fitting mold quick-locking clamp assembly (307), and a press-fitting head (308) are sequentially arranged on the lower middle part of the guide sleeve seat plate (301).

2. The bushing press-fitting mold assembly according to claim 1, characterized in that, The force sensor (302) is equipped with a quick connector (303) at its upper end. The quick connector (303) is provided with a T-slot (310) and the side of the T-slot (310) is set as an opening. The electric cylinder connecting rod (304) is provided with a T-shaped plug (309) at its lower end.

3. The bushing press-fitting mold assembly according to claim 1, characterized in that, The force sensor (302) is surrounded by a plurality of countersunk holes (311); The countersunk hole (311) is provided with a screw that passes through the guide sleeve seat plate (301) and is screwed to the positioning flange (306).

4. The bushing press-fitting mold assembly according to claim 1, characterized in that, The guide sleeve base plate (301) has first screw holes at both ends; The upper outer side of the guide sleeve (305) is provided with an external thread (316) that is screwed into the first screw hole, and a limit ring (319) is provided on the guide sleeve (305).

5. The bushing press-fitting mold assembly according to claim 1, characterized in that, The press mold quick-lock clamp assembly (307) includes a threaded sleeve (315) rotatably disposed on the upper end of the press head (308), and a stud (314) screwed to the threaded sleeve (315) is fixedly connected to the bottom of the positioning flange (306), and the lower end of the stud (314) is provided with an external thread (316).

6. The bushing press-fitting mold assembly according to claim 5, characterized in that, The head of the press-fit head (308) is provided with a positioning plate (317) located within the screw sleeve (315); The bottom of the threaded sleeve (315) is provided with a positioning sliding hole that passes through the upper end of the press head (308), and the bottom of the press head (308) is provided with a frustum-cone portion (312) and a sleeve rod (313).

7. The bushing press-fitting mold assembly according to claim 1, characterized in that, The upper end of the electric cylinder connecting rod (304) is provided with a second screw hole (318).

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