Mechanical part assembly testing device

Abstract

The utility model discloses a mechanical part assembling and testing device which comprises a supporting table and a portal frame fixedly connected to the top of the supporting table, and the top of the supporting table is provided with a fixing assembly used for clamping and rotating parts to be assembled. An assembling assembly used for press fitting of mechanical parts is installed at the position, corresponding to the fixing assembly, of the portal frame, a testing assembly used for testing the mechanical parts is installed on the side face of the portal frame, and the fixing assembly comprises a fixing structure used for clamping parts to be assembled. According to the utility model, the functions of shaft body fixing, shaft sleeve press fitting and coaxial detection are integrated, and the integrated operation of mechanical part assembling and testing is realized. Transfer and waiting time among different working procedures is reduced, and production efficiency is improved. Meanwhile, through accurate fixing and detecting functions, the assembling quality is guaranteed, the overall quality of products is improved, and the competitiveness of enterprises in the market is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts assembly technology, and in particular to a mechanical parts assembly testing device. Background Technology

[0002] In the field of mechanical manufacturing, the assembly quality of mechanical parts directly affects the performance, precision, and reliability of the entire mechanical equipment. Among them, the assembly of shafts and bushings is a common assembly process, which requires high precision and coaxiality.

[0003] In existing technologies, such as the interference fit anti-error device for pin holes and pin shafts of mechanical parts disclosed in CN217475811U, although the press fit function of mechanical parts is realized to a certain extent, there are still obvious shortcomings in the assembly of shafts and shaft sets. Conventional mechanical parts assembly devices are not convenient for effectively fixing the shafts to be assembled. During the assembly process, the shafts may shift or wobble due to uneven force, resulting in a decrease in assembly accuracy, or even affecting the assembly quality and increasing the scrap rate.

[0004] Furthermore, the coaxiality detection of mechanical parts after assembly is also a crucial step. Most existing devices lack convenient and efficient coaxiality detection functions, making it impossible to accurately check the coaxiality of shafts and bushings promptly after assembly. Failure to detect assembly problems in a timely manner may lead to issues such as vibration, noise, and accelerated wear during equipment operation, shortening equipment lifespan and increasing maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a mechanical parts assembly and testing device that integrates shaft fixing, bushing pressing, and coaxiality detection functions, realizing integrated operation of mechanical parts assembly and testing. This reduces transfer and waiting time between different processes, improving production efficiency. Simultaneously, through precise fixing and detection functions, it ensures assembly quality, enhances the overall quality of the product, and strengthens the company's competitiveness in the market.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A mechanical parts assembly testing device, comprising:

[0008] The support platform and the gantry frame fixedly connected to the top of the support platform are provided. The top of the support platform is provided with a fixing component for clamping and rotating the parts to be assembled. An assembly component for press-fitting mechanical parts is installed on the gantry frame and at the position corresponding to the fixing component. A test component for testing mechanical parts is installed on the side of the gantry frame.

[0009] In the aforementioned mechanical parts assembly and testing device, the fixing component includes a fixing structure for clamping the parts to be assembled, and a rotary drive component for rotating the fixing structure is installed at the bottom of the fixing structure.

[0010] The aforementioned mechanical parts assembly and testing device includes a rotary drive assembly comprising a servo motor fixedly connected to the bottom of the support platform, and a rotating disk fixedly connected to the output shaft of the servo motor.

[0011] The aforementioned mechanical parts assembly and testing device includes a fixing structure comprising a placement seat fixedly connected to the top of the rotating disk, an abutment seat fixedly connected to the inner wall of the placement seat, a forward and reverse motor fixedly connected to the side of the placement seat, a bidirectional screw fixedly connected to the output shaft of the forward and reverse motor, the bidirectional screw having a reverse thread, a threaded sleeve threadedly connected to the bidirectional screw, a connecting slide rod fixedly connected to the threaded sleeve, a drive connecting rod fixedly connected to the other end of the connecting slide rod, two sliding clamping rods fixedly connected to the drive connecting rod, and the other end of the sliding clamping rod movably passing through the placement seat and extending into the interior of the placement seat, and an arc-shaped clamping seat for clamping the shaft parts to be assembled fixedly connected to the end of the sliding clamping rod away from the drive connecting rod.

[0012] In the aforementioned mechanical parts assembly and testing device, a clamping pad is fixedly connected to the inner wall of the arc-shaped clamp.

[0013] In the aforementioned mechanical parts assembly and testing device, a plurality of equidistant limiting balls are provided at the bottom edge of the rotating disk, and the rotating disk is rolledly connected to the top of the support platform through the limiting balls.

[0014] The aforementioned mechanical parts assembly and testing device includes an assembly component comprising an electric cylinder fixedly connected to the top of the gantry frame, and an assembly press sleeve for press-fitting the bushing to be assembled is fixedly connected to the output end of the electric cylinder.

[0015] The aforementioned mechanical parts assembly testing device includes a testing component comprising an electric push rod fixedly connected to the side of the gantry frame, wherein a dial indicator for inspecting assembled parts is mounted on the output end of the electric push rod.

[0016] This utility model has at least the following beneficial effects:

[0017] 1. In this utility model, a mechanical part assembly and testing device is realized, which integrates functions of shaft body fixing, bushing press-fitting and coaxiality detection, achieving integrated operation of mechanical part assembly and testing. It reduces the transfer and waiting time between different processes, improving production efficiency. At the same time, through precise fixing and detection functions, the assembly quality is guaranteed, the overall quality of the product is improved, and the competitiveness of the enterprise in the market is enhanced.

[0018] 2. Convenient shaft body fixing function: In this utility model, the bottom of the shaft body to be assembled is placed in the placement seat and abuts against the abutment seat. The forward and reverse motor on the side of the placement seat is turned on to drive the rotation of the bidirectional screw rod. Under the thread action of the two thread sleeves on the bidirectional screw rod, the two thread sleeves approach each other. Then, driven by the slide rod connected to the thread sleeve, the sliding clamping rod on the side of the driving connecting rod moves, and finally the shaft body to be assembled is clamped and fixed by the arc-shaped clamping seat. This fixing method is simple to operate, stable and reliable, can effectively prevent the shaft body from shifting or shaking during the assembly process, improves the assembly accuracy and quality, and reduces the scrap rate.

[0019] 3. Efficient bushing press-fitting function: After the shaft body is fixed, the bushing to be assembled is sleeved on the clamped shaft body, and the assembly press sleeve is moved down by the electric cylinder to press-fit the bushing onto the shaft body. This press-fitting process is convenient to operate, can ensure the assembly tightness and coaxiality between the bushing and the shaft body, improves the assembly efficiency, and meets the production requirements of mechanical part assembly.

[0020] 4. Precise coaxiality detection function: After the press-fitting is completed, the dial indicator is moved by the electric push rod so that the detection head of the dial indicator abuts against the bushing after the press-fitting. The servo motor is turned on to drive the rotation of the rotating disk, and then the placement seat on the rotating disk rotates circumferentially, making the shaft body and the bushing after the press-fitting rotate synchronously. At this time, whether the bushing after the press-fitting is qualified can be accurately judged through the reading of the dial indicator. This detection method can timely detect problems existing in the assembly process, facilitate timely adjustment and repair, ensure the assembly quality of mechanical parts, improve the performance and reliability of mechanical equipment, and reduce the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0022] Figure 1 is a structural schematic diagram of the mechanical part assembly and testing device of the present utility model;

[0023] Figure 2 is a structural schematic diagram of another perspective of the mechanical part assembly and testing device of the present utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the mechanical parts assembly and testing device of this utility model;

[0025] Figure 4 This is a schematic diagram of the fixing component in the mechanical parts assembly and testing device of this utility model;

[0026] Figure 5 This is a schematic diagram of the fixing structure in the mechanical parts assembly and testing device of this utility model;

[0027] Figure 6 This is a schematic diagram of the rotary drive assembly in the mechanical parts assembly and testing device of this utility model;

[0028] Figure 7 This is a schematic diagram of the assembly components in the mechanical parts assembly and testing device of this utility model;

[0029] Figure 8 This is a schematic diagram of the test component in the mechanical parts assembly and testing device of this utility model.

[0030] Explanation of icon numbers:

[0031] 1. Support platform; 2. Gantry frame; 3. Fixing components; 4. Assembly components; 5. Testing components;

[0032] 301. Fixed structure; 302. Rotation drive assembly;

[0033] 3011, Placement seat; 30111, Abutment seat; 3012, Forward and reverse motor; 3013, Bidirectional screw; 3014, Threaded sleeve; 3015, Connecting slide rod; 3016, Drive linkage; 3017, Sliding clamp rod; 3018, Arc-shaped clamp;

[0034] 3021, Servo motor; 3022, Rotary disk; 30221, Limit ball bearing;

[0035] 30181. Clamping pad;

[0036] 401. Electric cylinder; 402. Assembly press sleeve;

[0037] 501. Electric linear actuator; 502. Dial indicator. Detailed Implementation

[0038] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0039] Please refer to Figures 1 to 8As shown, an embodiment of the present invention provides a mechanical parts assembly and testing device, including: a support platform 1 and a gantry frame 2 fixedly connected to the top of the support platform 1. The top of the support platform 1 is provided with a fixing component 3 for clamping and rotating the parts to be assembled. An assembly component 4 for pressing mechanical parts is installed on the gantry frame 2 at a position corresponding to the fixing component 3. A testing component 5 for testing mechanical parts is installed on the side of the gantry frame 2.

[0040] The fixing component 3 includes a fixing structure 301 for clamping the parts to be assembled, and a rotary drive component 302 for rotating the fixing structure 301 is installed at the bottom of the fixing structure 301.

[0041] By adopting the above technical solution, the functions of shaft fixing, bushing press fitting, and coaxiality detection are integrated into one, realizing the integrated operation of mechanical parts assembly and testing. This reduces the transfer and waiting time between different processes, improving production efficiency. At the same time, through precise fixing and testing functions, assembly quality is guaranteed, the overall quality of the product is improved, and the company's competitiveness in the market is enhanced.

[0042] To achieve rotary drive during shaft assembly, in this embodiment, the rotary drive assembly 302 includes a servo motor 3021 fixedly connected to the bottom of the support platform 1. A rotating disk 3022 is fixedly connected to the output shaft of the servo motor 3021. The servo motor 3021 has precise control performance, enabling accurate control of the rotation angle and speed of the rotating disk 3022. During coaxiality testing after assembly, the servo motor 3021 drives the rotating disk 3022 to rotate, thereby causing the placement base 3011 and the shaft and bushing on it to rotate synchronously. This provides stable rotational power for the dial indicator 502 to test the coaxiality of the bushing, ensuring the accuracy and reliability of the test results.

[0043] To ensure stable fixation of the shaft to be assembled, in this embodiment: the fixing structure 301 includes a placement seat 3011 fixedly connected to the top of the rotating disk 3022; an abutment seat 30111 fixedly connected to the inner wall of the placement seat 3011; a forward / reverse motor 3012 fixedly connected to the side of the placement seat 3011; a bidirectional screw 3013 fixedly connected to the output shaft of the forward / reverse motor 3012; the bidirectional screw 3013 has a reverse thread; a threaded sleeve 3014 is threadedly connected to the bidirectional screw 3013; and a connecting rod is fixedly connected to the threaded sleeve 3014. A sliding rod 3015 is connected to a drive connecting rod 3016 at one end. Two sliding clamping rods 3017 are fixedly connected to the drive connecting rod 3016, and the other end of the sliding clamping rods 3017 movably passes through the placement seat 3011 and extends into the interior of the placement seat 3011. An arc-shaped clamping seat 3018 for clamping the shaft parts to be assembled is fixedly connected to the end of the sliding clamping rod 3017 away from the drive connecting rod 3016. The placement seat 3011 provides placement space for the shaft, and the abutment seat 30111 provides support for the bottom of the shaft. A forward and reverse motor 3012 drives a bidirectional screw 3013 to rotate. Because the bidirectional screw 3013 has reverse threads, the two threaded sleeves 3014 can move closer or further apart. Under the transmission action of connecting slide bar 3015, drive link 3016 and sliding clamping bar 3017, arc-shaped clamping seat 3018 can stably clamp the shaft to be assembled, preventing the shaft from shifting or shaking during the assembly process, thus improving assembly accuracy and quality.

[0044] To enhance the clamping effect and protect the shaft surface, in this embodiment, a clamping pad 30181 is fixedly connected to the inner wall of the arc-shaped clamp 3018. The clamping pad 30181 is typically made of a soft and elastic material. When the arc-shaped clamp 3018 clamps the shaft, the clamping pad 30181 increases the friction with the shaft surface, improving clamping stability. Simultaneously, the clamping pad 30181 also acts as a buffer, preventing the arc-shaped clamp 3018 from directly contacting the shaft surface and causing scratches or damage, thus protecting the surface quality of the shaft.

[0045] To reduce friction and improve rotational stability during the rotation of the rotating disk 3022, in this embodiment, a plurality of equidistant limiting balls 30221 are arranged at equal intervals along the bottom edge of the rotating disk 3022. The rotating disk 3022 is rolledly connected to the top of the support platform 1 via the limiting balls 30221. The limiting balls 30221 convert the sliding friction between the rotating disk 3022 and the support platform 1 into rolling friction, greatly reducing friction, energy loss, and wear during rotation. The equidistantly arranged limiting balls 30221 also limit the rotation of the rotating disk 3022, ensuring its stability during rotation and improving the overall stability and reliability of the device.

[0046] To achieve the press-fit function of the bushing, in this embodiment: the assembly assembly 4 includes an electric cylinder 401 fixedly connected to the top of the gantry 2. An assembly pressing sleeve 402 for press-fitting the bushing to be assembled is fixedly connected to the output end of the electric cylinder 401. The electric cylinder 401 features fast response speed and high control precision, enabling precise control of the downward movement distance and pressure of the assembly pressing sleeve 402. After the shaft is fixed, the bushing is placed on top of the shaft. By driving the assembly pressing sleeve 402 downward through the electric cylinder 401, the bushing can be accurately and smoothly pressed onto the shaft, ensuring the tightness and coaxiality of the assembly between the bushing and the shaft.

[0047] To facilitate coaxiality testing of the assembled bushing, in this embodiment, the test assembly 5 includes an electric push rod 501 fixedly connected to the side of the gantry 2. A dial indicator 502 for testing the assembled part is mounted on the output end of the electric push rod 501. The electric push rod 501 can drive the dial indicator 502 to move horizontally, allowing the measuring head of the dial indicator 502 to accurately contact the pressed bushing. When the servo motor 3021 drives the shaft and bushing to rotate synchronously, the dial indicator 502 can measure the runout of the bushing in real time. The reading is used to determine whether the pressed bushing is qualified, achieving rapid and accurate testing of the assembled part.

[0048] The working principle of this utility model is as follows:

[0049] When assembling the shaft and bushing, first place the shaft to be assembled in the placement seat 3011, ensuring that the bottom of the shaft is tightly abutted against the abutment seat 30111. Then, start the forward and reverse motor 3012 on the side of the placement seat 3011. The forward and reverse motor 3012 drives the bidirectional screw 3013 to rotate. Since the bidirectional screw 3013 has reverse threads, the two threaded sleeves 3014 will move closer to each other during its rotation. Driven by the connecting slide rod 3015, the drive connecting rod 3016 drives the sliding clamping rod 3017 to move, thereby making the arc-shaped clamping seat 3018 firmly clamp the shaft to be assembled.

[0050] After the shaft is fixed, the bushing to be assembled is placed on top of the clamped shaft. Then, the electric cylinder 401 at the top of the gantry 2 is activated. The electric cylinder 401 drives the assembly pressure sleeve 402 to move downward, accurately pressing the bushing onto the shaft, thus realizing the assembly of the shaft and the bushing.

[0051] After assembly, the electric push rod 501 on the side of the gantry 2 is activated. The electric push rod 501 moves the dial indicator 502, causing its probe to contact the pressed-fit bushing. Then, the servo motor 3021 at the bottom of the support platform 1 is activated. The servo motor 3021 drives the rotating disk 3022 to rotate, and the mounting seat 3011 on the rotating disk 3022 rotates circumferentially, thereby causing the pressed-fit shaft and bushing to rotate synchronously. During rotation, the change in the reading of the dial indicator 502 indicates whether the pressed-fit bushing meets the coaxiality requirements, thus determining whether the bushing is qualified. The entire assembly and inspection process is simple, precise, and efficient, effectively ensuring the assembly quality of mechanical parts.

[0052] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A mechanical part assembly testing device, comprising a support table (1) and a gantry (2) fixedly connected to the top of the support table (1), characterized in that, The top of the support platform (1) is provided with a fixing component (3) for clamping and rotating the parts to be assembled. The gantry (2) is provided with an assembly component (4) for press-fitting mechanical parts, and the side of the gantry (2) is provided with a test component (5) for testing mechanical parts.

2. A mechanical part assembly testing device according to claim 1, characterized in that: The fixing component (3) includes a fixing structure (301) for clamping the parts to be assembled, and a rotation drive component (302) for rotating the fixing structure (301) is mounted on the bottom of the fixing structure (301).

3. A mechanical part assembly testing device according to claim 2, wherein: The rotary drive assembly (302) includes a servo motor (3021) fixedly connected to the bottom of the support platform (1), and a rotating disk (3022) is fixedly connected to the output shaft of the servo motor (3021).

4. A mechanical part assembly testing device according to claim 3, wherein: The fixing structure (301) includes a placement seat (3011) fixedly connected to the top of the rotating disk (3022). An abutment seat (30111) is fixedly connected to the inner wall of the placement seat (3011). A forward / reverse motor (3012) is fixedly connected to the side of the placement seat (3011). A bidirectional screw (3013) is fixedly connected to the output shaft of the forward / reverse motor (3012). The bidirectional screw (3013) has a reverse thread. A threaded sleeve (3014) is threaded onto the bidirectional screw (3013). 14) A connecting slide rod (3015) is fixedly connected to the upper part. A driving link (3016) is fixedly connected to the other end of the connecting slide rod (3015). Two sliding clamp rods (3017) are fixedly connected to the driving link rod (3016). The other end of the sliding clamp rod (3017) is movably connected through the placement seat (3011) and extends into the interior of the placement seat (3011). An arc-shaped clamping seat (3018) for clamping the shaft part to be assembled is fixedly connected to the end of the sliding clamp rod (3017) away from the driving link rod (3016).

5. A mechanical part assembly testing device according to claim 4, wherein: A clamping pad (30181) is fixedly connected to the inner wall of the arc-shaped clamp (3018).

6. A mechanical part assembly testing device according to claim 5, wherein: The rotating disk (3022) has several equidistant limit balls (30221) arranged at the bottom edge, and the rotating disk (3022) is connected to the top of the support platform (1) by the limit balls (30221).

7. A mechanical part assembly testing device according to claim 6, wherein: The assembly assembly (4) includes an electric cylinder (401) fixedly connected to the top of the gantry (2), and an assembly press sleeve (402) for press-fitting the bushing to be assembled is fixedly connected to the output end of the electric cylinder (401).

8. A mechanical part assembly testing device according to claim 7, characterized in that: The test assembly (5) includes an electric push rod (501) fixedly connected to the side of the gantry (2), and a dial indicator (502) for inspecting assembled parts is installed on the output end of the electric push rod (501).

Images