Automatic nut pressing device
By designing an automatic nut pressing device that combines a linear motor and pneumatic fingers, automatic nut feeding and simultaneous pressing of multiple nuts are achieved, solving the problem of low nut installation efficiency in existing technologies and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, metal nuts are prone to misalignment when embedded in plastic parts and require individual tapping for installation, resulting in low efficiency.
An automatic nut pressing device was designed, comprising a nut pressing mechanism, a nut receiving mechanism, and a nut feeding mechanism. It combines a linear motor, pneumatic fingers, and an automatic feeding vibratory plate to realize the automatic feeding and pressing of nuts.
It simplifies the operation process, improves the efficiency of nut installation, enables the simultaneous pressing of multiple nuts, and reduces manual intervention.
Smart Images

Figure CN223971178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut assembly, specifically an automatic nut pressing device. Background Technology
[0002] When plastic parts require multiple disassembly and assembly, the best fastening method is to insert a metal nut into the plastic part. There are four methods for inserting metal nuts: hot insertion, ultrasonic insertion, nut injection molding, and cold pressing insertion.
[0003] For example, patent CN222662709U discloses a cold-pressing nut pressing device for manufacturing plastic furniture. Existing technology often results in misalignment when installing cold-pressed nuts, and requires individual tapping for installation, leading to low efficiency. The cold-pressing nut pressing device for manufacturing plastic furniture includes a support frame, with a placement platform fixed to the upper part of the support frame, and a placement groove formed on the placement platform.
[0004] The aforementioned patent involves an operator placing the workpiece into the placement slot of the placement table, ensuring the side of the workpiece is flush against the inner surface of the placement table. The operator then places the cold-pressed nuts into the suction holes of the magnetic head. The operator activates the extension rod of the hydraulic push rod, which retracts, causing the connecting frame to move downwards. The connecting frame then moves the mounting plate downwards, which in turn moves the magnetic head downwards, pressing all four cold-pressed nuts into the workpiece. This allows for the simultaneous installation of four cold-pressed nuts, improving work efficiency. However, the disadvantage of this patent is that the nuts need to be placed manually, resulting in low work efficiency.
[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content
[0006] The purpose of this invention is to provide an automatic nut clamping device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An automatic nut pressing device includes a nut pressing mechanism, a nut receiving mechanism, and a nut feeding mechanism; the nut pressing mechanism includes a base, a nut pressing lifting platform, and a linear motor.
[0009] A top plate is fixedly connected to the base via four guide columns; a nut-pressing lifting platform is located between the base and the top plate; an upper pressing head is fixedly installed at the bottom of the nut-pressing lifting platform; a linear motor is fixedly installed at the top center of the top plate, and the output shaft of the linear motor passes through the top plate and is fixedly connected to the top center of the nut-pressing lifting platform.
[0010] The nut receiving mechanism includes a first slide rail mounting plate, which is fixedly mounted on the base. A first feeding slide rail is provided on the top of the first slide rail mounting plate along the front-back direction. A feeding worktable is slidably connected to the first feeding slide rail via a slider. A linear module is provided on the first slide rail mounting plate along the front-back direction, and the slide of the linear module is fixedly connected to the side of the feeding worktable.
[0011] The nut feeding mechanism includes an X-axis moving mechanism and a Z-axis moving mechanism; the X-axis moving mechanism drives and connects to the Z-axis moving mechanism, and a pneumatic finger is installed on the Z-axis moving mechanism.
[0012] Furthermore, the four corners of the pressure nut lifting platform are slidably connected to the guide column via linear bearings.
[0013] Furthermore, a lower mold is fixedly installed on the top of the feeding workbench, and a receiving groove for accommodating nuts is opened on the top of the lower mold.
[0014] Furthermore, the X-axis moving mechanism includes an X-axis slide rail mounting plate and an X-axis moving cylinder. The X-axis slide rail mounting plate is fixedly installed on the right side of the column. An X-axis slide rail is provided on the right side of the X-axis slide rail mounting plate along the front-back direction. An X-axis moving stage is slidably connected to the X-axis slide rail via a slider. The X-axis moving cylinder is fixedly installed on the X-axis slide rail mounting plate, and the output shaft of the X-axis moving cylinder is fixedly installed on the rear side of the X-axis moving stage.
[0015] Furthermore, the Z-axis moving mechanism includes a Z-axis moving cylinder, which is vertically fixedly installed on the right side of the X-axis moving stage. The Z-axis moving stage is fixedly installed at the bottom of the output shaft of the Z-axis moving cylinder, and a pneumatic finger is fixedly installed at the bottom of the Z-axis moving stage.
[0016] Furthermore, the nut feeding mechanism also includes an automatic feeding vibratory feeder, with pneumatic fingers located at the end of the linear feeder of the automatic feeding vibratory feeder.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This invention can be used in conjunction with an automatic feeding vibratory feeder to supply nuts during the pressing process. Workers only need to place the workpiece above the lower mold to complete the pressing operation, which simplifies the operation process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of an automatic nut clamping device.
[0020] Figure 2 This is a front view of the automatic nut clamping device.
[0021] Figure 3This is a side view of the automatic nut clamping device.
[0022] Figure 4 This is a top view of the automatic nut clamping device.
[0023] Figure 5 This is a schematic diagram of the nut-pressing mechanism in an automatic nut-pressing device.
[0024] Figure 6 This is a front view of the nut-pressing mechanism in an automatic nut-pressing device.
[0025] Figure 7 This is a schematic diagram of the nut receiving mechanism in an automatic nut pressing device.
[0026] Figure 8 This is a schematic diagram of the nut feeding mechanism in an automatic nut pressing device.
[0027] Figure 9 for Figure 8 A magnified view of a portion of point a.
[0028] Figure 10 This is a schematic diagram of the automatic nut presser device during nut pressing.
[0029] Figure 11 This is a schematic diagram of the workpiece processed by this utility model. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0031] Please see Figure 1-9 The automatic nut pressing device includes a nut pressing mechanism 1, a nut receiving mechanism 2, and a nut feeding mechanism 3.
[0032] The nut pressing mechanism 1 includes a base 101, a nut pressing lifting platform 105, and a linear motor 110;
[0033] A top plate 103 is fixedly connected to the base 101 via four guide columns 102; a nut pressing lifting platform 105 is located between the base 101 and the top plate 103, and the four corners of the nut pressing lifting platform 105 are slidably connected to the guide columns 102 via linear bearings 106; an upper pressing head 104 is fixedly installed at the bottom of the nut pressing lifting platform 105.
[0034] The linear motor 110 is fixedly installed at the top center of the top plate 103, and the output shaft of the linear motor 110 passes through the top plate 103 and is fixedly connected to the top center of the pressing nut lifting platform 105; the linear motor 110 can drive the pressing nut lifting platform 105 to rise and fall along the guide column 102.
[0035] The nut receiving mechanism 2 includes a first slide rail mounting plate 201, which is fixedly mounted on the base 101. A first feeding slide rail 202 is provided on the top of the first slide rail mounting plate 201 along the front-back direction. A feeding worktable 203 is slidably connected to the first feeding slide rail 202 via a slider. A linear module 204 is provided on the first slide rail mounting plate 201 along the front-back direction. The slide of the linear module 204 is fixedly connected to the side of the feeding worktable 203. The linear module 204 can drive the feeding worktable 203 to move back and forth along the first feeding slide rail 202. A lower mold 205 is fixedly mounted on the top of the feeding worktable 203. A receiving groove 206 for accommodating nuts is opened on the top of the lower mold 205.
[0036] The nut feeding mechanism 3 includes an X-axis moving mechanism 310 and a Z-axis moving mechanism 320; the X-axis moving mechanism 310 drives and connects to the Z-axis moving mechanism 320, and a pneumatic finger 330 is installed on the Z-axis moving mechanism 320.
[0037] The X-axis moving mechanism 310 includes an X-axis slide rail mounting plate 311 and an X-axis moving cylinder 315. The X-axis slide rail mounting plate 311 is fixedly mounted on the right side of the column 312. An X-axis slide rail 313 is provided on the right side of the X-axis slide rail mounting plate 311 along the front-back direction. An X-axis moving stage 314 is slidably connected to the X-axis slide rail 313 via a slider. The X-axis moving cylinder 315 is fixedly mounted on the X-axis slide rail mounting plate 311. The output shaft of the X-axis moving cylinder 315 is fixedly mounted on the rear side of the X-axis moving stage 314.
[0038] The Z-axis moving mechanism 320 includes a Z-axis moving cylinder 321, which is vertically fixedly installed on the right side of the X-axis moving stage 314. The bottom of the output shaft of the Z-axis moving cylinder 321 is fixedly installed on the Z-axis moving stage 322, and the bottom of the Z-axis moving stage 322 is fixedly installed on the pneumatic finger 330.
[0039] The nut feeding mechanism 3 also includes an automatic feeding vibratory feeder 4, which includes a hopper 401 and a linear feeder 402. The automatic feeding vibratory feeder is existing technology and is described here only for the convenience of explaining the whole solution. The pneumatic finger 330 is located at the end of the linear feeder 402.
[0040] When this utility model is put into use, the automatic feeding vibratory plate 4 is used to feed the nut. When the nut moves to the end of the linear feeder 402, the Z-axis moving cylinder 321 drives the pneumatic finger 330 to descend and the pneumatic finger 330 grabs the nut. Then the Z-axis moving cylinder 321 drives the nut to rise, and the X-axis moving cylinder 315 moves the X-axis moving table 314 to move forward along with the nut.
[0041] At this time, the feeding worktable 203 is located at the rear of the first feeding slide rail 202. The first feeding slide rail 202 descends, the nut contacts the receiving groove 206 at the top of the lower mold 205, and the pneumatic finger 330 loosens the nut.
[0042] Then, the linear module 204 of the nut receiving mechanism 2 drives the feeding worktable 203 to move directly below the pressing nut lifting platform 105;
[0043] like Figure 10-11 As shown, the worker places the workpiece 900 on top of the nut above the lower mold 205; the linear motor 110 drives the nut lifting platform 105 to descend along the guide post 102, the upper pressure head 104 contacts the workpiece, presses the workpiece against the nut, and then the nut is pressed into the workpiece by the nut; the worker takes out the nut and workpiece together.
[0044] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. An automatic nut press apparatus comprising a nut press mechanism, characterized by, The nut receiving mechanism and the nut feeding mechanism are further included; the nut pressing mechanism comprises a base, a nut pressing lifting platform and a linear motor; a top plate is fixedly connected to the top of the base through four guide columns; the nut pressing lifting platform is located between the base and the top plate; an upper pressing head is fixedly installed at the bottom of the nut pressing lifting platform; the linear motor is fixedly installed at the top center of the top plate, and the output shaft of the linear motor is fixedly connected to the top center of the nut pressing lifting platform through the top plate; The nut receiving mechanism comprises a first sliding rail mounting plate, which is fixedly installed on the base, and a first feeding sliding rail is arranged on the top of the first sliding rail mounting plate along the front-rear direction, and a feeding workbench is slidably connected to the first feeding sliding rail through a sliding block; a linear module is arranged on the first sliding rail mounting plate along the front-rear direction, and the sliding table of the linear module is fixedly connected to the side of the feeding workbench. The nut feeding mechanism comprises an X-axis moving mechanism and a Z-axis moving mechanism; the X-axis moving mechanism is drivingly connected to the Z-axis moving mechanism, and a pneumatic finger is installed on the Z-axis moving mechanism.
2. The automatic nut press apparatus according to claim 1, characterized by The nut pressing lifting platform is slidably connected to the guide columns through linear bearings at four corners.
3. The automatic nut press apparatus according to claim 1, wherein A lower mold is fixedly installed on the top of the feeding workbench, and an accommodating groove for accommodating nuts is formed in the top of the lower mold.
4. The automatic nut press apparatus according to claim 1, wherein The X-axis moving mechanism comprises an X-axis sliding rail mounting plate and an X-axis moving cylinder, the X-axis sliding rail mounting plate is fixedly installed on the right side of the stand column, an X-axis sliding rail is arranged on the right side of the X-axis sliding rail mounting plate along the front-rear direction, an X-axis moving table is slidably connected to the X-axis sliding rail through a sliding block, the X-axis moving cylinder is fixedly installed on the X-axis sliding rail mounting plate, and the output shaft of the X-axis moving cylinder is fixedly installed on the rear side of the X-axis moving table.
5. The automatic nut press apparatus according to claim 1, wherein The Z-axis moving mechanism comprises a Z-axis moving cylinder, which is vertically fixedly installed on the right side of the X-axis moving table, and the output shaft of the Z-axis moving cylinder is fixedly installed on the bottom of the Z-axis moving table, and the pneumatic finger is fixedly installed on the bottom of the Z-axis moving table.
6. The automatic nut press apparatus according to claim 1, wherein The nut feeding mechanism further comprises an automatic feeding vibration disc, and the pneumatic finger is located at the end of the linear feeder of the automatic feeding vibration disc.
Citation Information
Patent Citations
Cold pressing nut press-in device for plastic furniture manufacturing
CN222662709U