A pin shaft circumferential polishing processing device

Abstract

The utility model discloses a kind of pin shaft circumferential polishing processing devices, belong to polishing equipment technical field, comprising: workbench, material supporting clamp, sliding mechanism and polishing mechanism.The material supporting clamp is set at the upper end of workbench, for clamping and driving pin shaft rotation, it includes adjustable clamp and the fixed-point support for auxiliary support.Two groups of the sliding mechanism are symmetrically set on workbench, located material supporting clamp two sides, and each group of sliding mechanism is driven screw by hand wheel, and installation plate is accurately moved along sliding rail.Two groups of the polishing mechanism are respectively installed on the installation plate of sliding mechanism, including driving motor, grinding disc and protective cover.The utility model adjusts polishing position by adjustable clamp to adapt to different diameter pin shaft, and combined with fixed-point support, realize the even, stable, efficient circumferential polishing of pin shaft outer circle, effectively improve processing quality and security.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a pin shaft circumferential grinding processing device. Background Technology

[0002] Pins are commonly used connecting and positioning parts in mechanical equipment. The smoothness and dimensional accuracy of their outer cylindrical surface have a significant impact on the assembly quality and performance of the equipment. During the processing, pin surfaces may have burrs, oxide scale, or require precision finishing.

[0003] Currently, grinding the outer diameter of pins is mostly done using handheld angle grinders or grinding wheels fixed on simple supports. Handheld operation suffers from uneven grinding, high labor intensity, and poor safety, and the processing quality depends on the operator's experience, making it difficult to guarantee consistency. While simple fixed grinding wheels improve stability, they have poor adaptability to pins of different diameters and lengths, are inconvenient to adjust, and lack effective support when grinding long shafts, making them prone to vibration that affects grinding accuracy and surface quality.

[0004] Therefore, there is an urgent need for a specialized device that can stably clamp, adapt to pins of different specifications, and achieve uniform, efficient, and safe circumferential grinding. Utility Model Content

[0005] The purpose of this utility model is to provide a pin shaft circumferential grinding processing device to solve the above problems. It has a reasonable structure, is easy to operate, has high grinding quality, and is highly adaptable.

[0006] Technical solution: This utility model provides a pin shaft circumferential grinding processing device, including: The workbench serves as the basic support platform for the entire device. Material support fixtures are installed at both ends of the upper middle part of the workbench frame and are used to support and clamp the pins to be polished; The sliding mechanism comprises two sets arranged symmetrically. Each set includes a base plate, a sliding rail, a sliding block, a mounting plate, and a handwheel. The base plate is symmetrically arranged on the workbench and perpendicular to the material guiding direction of the material-bearing clamp. The sliding rail is mounted on the base plate, and the sliding block is mounted on the sliding rail and can slide along it. The mounting plate is mounted on the sliding block, and a connecting plate is provided below the mounting plate. A fixing block is provided on the mounting plate, and a threaded through hole is provided in the middle of the fixing block, through which a screw rod is inserted. One end of the screw rod is connected to the connecting plate, and the handwheel is mounted on the other end of the screw rod. By turning the handwheel to rotate the screw rod, the mounting plate and its components can be driven to move precisely along the sliding rail. The grinding mechanism comprises two sets, each mounted on a mounting plate of a sliding mechanism. Each set includes a drive motor, a grinding disc, and a protective cover. The drive motor is mounted on the mounting plate, and the grinding disc is installed at the output end of the drive motor, which drives it to rotate at high speed. The protective cover covers the outside of the grinding disc for safety protection.

[0007] Furthermore, the material-bearing fixture of the aforementioned pin shaft circumferential grinding processing device includes an adjustable fixture and a fixed-point support. The adjustable fixture is located at both ends of the middle above the workbench and is used to actively clamp and drive the pin shaft to rotate. The fixed-point support is located on both sides of the middle of the workbench, on both sides of the middle grinding position of the two sets of grinding discs, and is used to provide auxiliary support for the pin shaft near the grinding point to prevent deformation and vibration caused by grinding force.

[0008] Furthermore, the adjustable fixture of the aforementioned pin shaft circumferential grinding processing device includes a support frame, an adjustment mechanism, a lower roller, an upper roller, and a rotating motor. The support frame is mounted on a workbench, the adjustment mechanism is mounted above the support frame and extends into its interior, there are two lower rollers, which are positioned at the same height in the lower middle part of the support frame, and the upper roller is mounted on the adjustment mechanism, located inside the upper end of the support frame, and directly opposite the middle position of the two lower rollers below. The rotating motor is located outside the support frame, connected to and driving one of the lower rollers to rotate.

[0009] Furthermore, the adjustment mechanism of the aforementioned pin circumferential grinding device includes a connecting frame, a rotating screw, and an adjusting rocker wheel. The rotating screw passes through a pre-set threaded hole in the middle of the upper end of the support frame. The connecting frame is located at the lower end of the rotating screw, and the upper roller is installed inside the connecting frame. The adjusting rocker wheel is located at the upper end of the rotating screw. By rotating the adjusting rocker wheel, the rotating screw can be driven to rotate, thereby causing the connecting frame and the upper roller to move up and down to adapt to and press pins of different diameters.

[0010] Furthermore, in order to improve the stability of the adjustment mechanism during movement, the above-mentioned pin shaft circumferential grinding device has sliding grooves on the upper ends of both sides of the support frame and protrusions at both ends of the connecting frame. The width of the protrusions is equal to that of the sliding grooves and they can be inserted into the sliding grooves and slide up and down to form a guide structure.

[0011] Furthermore, the fixed-point support component of the aforementioned pin shaft circumferential grinding processing device includes a fixed-point bracket and a fixed-point roller. The fixed-point bracket is set on the workbench and its setting direction is along the axial direction of the pin shaft (i.e., the grinding direction). The fixed-point roller is set between two fixed-point brackets and can rotate freely to provide rolling support for the pin shaft.

[0012] Furthermore, the protective cover of the aforementioned pin circumferential grinding device is designed to mimic the shape and structure of a grinding disc, so as to tightly wrap the grinding disc. An arc-shaped opening is provided on the side of the protective cover near the grinding position so that the grinding disc is partially exposed and in contact with the pin for grinding, while protecting the operator to the greatest extent.

[0013] Furthermore, in order to facilitate movement and stable placement, the aforementioned pin shaft circumferential grinding processing device is equipped with casters and adjustable support feet under the workbench. The device can be easily moved by the casters, and the workbench can be stably grounded by adjusting the adjustable support feet after it is in place.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: High-efficiency and uniform grinding: The rotating motor in the material clamp drives the pin to rotate at a uniform speed. Combined with the grinding discs on both sides that can be precisely fed, the pin is automatically and uniformly ground in the entire circumference, which significantly improves grinding efficiency and product quality consistency. Highly adaptable: The adjustable clamp can accommodate pins of different diameters by adjusting the upper roller; the sliding mechanism and grinding mechanism on both sides can be adjusted independently to accommodate pins of different lengths and different grinding area requirements. Good stability: In addition to the adjustable clamps at both ends, fixed support components are also set near the grinding point, which effectively prevents the long pin from bending and vibrating during the grinding process, ensuring grinding accuracy and surface finish. Safe and convenient operation: All adjustment mechanisms (such as hand cranks and adjusting cranks) are manually operated, ensuring precision and reliability. A protective cover is installed on the outside of the grinding disc, greatly improving operational safety. The bottom of the device is equipped with casters and adjustable feet, making movement and securing the device very convenient. Reasonable structure: The entire device has a compact layout, stable structure, clear functions of each component, and works in coordination. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a pin shaft circumferential grinding processing device according to the present invention; Figure 2 This is a schematic diagram of the adjustable clamp of this utility model; Figure 3 This is a schematic diagram of the fixed-point support component of this utility model; Figure 4 This is a schematic diagram of the sliding mechanism of this utility model.

[0016] In the picture: 1-Workbench frame, 11-Wheel casters, 12-Adjustable support legs; 2-Material receiving clamp; 21-Adjustable clamp; 211-Support frame; 2111-Slide groove; 212-Adjusting mechanism; 2121-Connecting frame; 2122-Rotating screw; 2123-Adjusting rocker wheel; 213-Lower roller; 214-Upper roller; 215-Rotating motor; 22-Fixed point support; 221-Fixed point bracket; 222-Fixed point roller; 3-Sliding mechanism, 31-Base plate, 32-Sliding rail, 33-Sliding block, 34-Mounting plate, 35-Hand crank; 4-Grinding mechanism, 41-Drive motor, 42-Grinding disc, 43-Protective cover. Detailed Implementation

[0017] Example 1 like Figure 1-4 The device for circumferential grinding of a pin shaft shown includes: a workbench 1, a material-bearing clamp 2, a sliding mechanism 3, and a grinding mechanism 4. The workbench 1 is equipped with casters 11 and adjustable support feet 12 for easy movement and leveling. The material-bearing clamp 2 is located at both ends of the upper part of the workbench 1. The sliding mechanism 3 has two sets, including a base plate 31, a sliding rail 32, a sliding block 33, a mounting plate 34, and a hand crank 35. The base plate 31 is symmetrically arranged in the middle of the workbench 1, perpendicular to the material-guiding direction of the material-bearing clamp 2. The sliding rail 32 is located on the base plate 31, and the sliding block 33 is located on the sliding rail 32. The mounting plate 34 is located on the sliding block 33, and a connecting plate is located below the mounting plate 34. A fixing block is provided on the mounting plate 34, with a threaded through hole in the middle of the fixing block through which a screw rod passes. One end of the screw rod is connected to the connecting plate, and a hand crank 35 is installed on the other end of the screw rod. By cranking the hand crank 35 to rotate the screw rod, the mounting plate 34 is moved to accommodate pins of different sizes. The grinding mechanism 4 has two sets, including a drive motor 41, a grinding disc 42, and a protective cover 43. The drive motor 41 is mounted on the mounting plate 34, the grinding disc 42 is mounted on the output end of the drive motor 41, and the protective cover 43 covers the grinding disc 42 for safety protection. The grinding range of the grinding mechanism 4 is controlled by adjusting the sliding mechanism 3 according to the size of the pin to be processed. The stability of the pin during the grinding process is improved by the position of the material clamp 2, thus improving the processing quality.

[0018] like Figure 2The device shown is a pin shaft circumferential grinding processing device. The material support fixture 2 includes an adjustable fixture 21 and a fixed support member 22. The adjustable fixture 21 is set at both ends of the middle above the workbench 1. The fixed support member 22 is set on both sides of the middle of the workbench 1, on both sides of the grinding position between the two sets of grinding discs 42. The adjustable fixture 21 includes a support frame 211, an adjustment mechanism 212, a lower roller 213, an upper roller 214, and a rotary motor 215. The support frame 211 is set on the workbench 1. The adjustment mechanism 212 is set above the support frame 211 and extends into the inside. There are two lower rollers 213 at the same height set at the lower middle of the support frame 211. The upper roller 214 is installed on the adjustment mechanism 212 and is located at the upper end of the inside of the support frame 211. The rotary motor 215 is set outside the support frame 211 and connected to one of the lower rollers 213 to drive the rotation and control the advance and retreat of the pin shaft.

[0019] Example 2 Based on Example 1, in this example, as... Figure 2 The device shown is a pin shaft circumferential grinding processing device. The adjustment mechanism 212 includes a connecting frame 2121, a rotating screw 2122, and an adjusting rocker wheel 2123. The rotating screw 2122 passes through the middle of the upper end of the support frame 211 and is installed through a threaded hole. The connecting frame 2121 is located at the lower end of the rotating screw 2122. An upper roller 214 is installed inside the connecting frame 2121. The upper roller 214 is directly opposite the middle of the two lower rollers 213 below. The adjusting rocker wheel 2123 is located at the upper end of the rotating screw 2122. Rotating the adjusting rocker wheel 2123 can raise and lower the upper roller 214, thereby cooperating with the two lower rollers 213 to limit the pin shaft.

[0020] In this embodiment, the upper ends of both sides of the support frame 211 are provided with sliding grooves 2111, and the two ends of the connecting frame 2121 are provided with protrusions. The width of the protrusions is equal to that of the sliding grooves 2111. The protrusions are inserted into the sliding grooves 2111 and can slide up and down to improve stability.

[0021] like Figure 3 The device for circumferential grinding of a pin shaft is shown. The fixed-point support 22 includes a fixed-point bracket 221 and a fixed-point roller 222. The fixed-point bracket 221 is arranged in the fixed-point bracket 221 with the setting direction along the grinding direction. The fixed-point roller 222 is arranged between the fixed-point brackets 221 to provide auxiliary support for the middle part of the pin shaft.

[0022] like Figure 1 The device shown is a pin shaft circumferential grinding processing device. The protective cover 43 is designed to resemble the shape of the grinding disc 42 so as to compactly wrap the grinding disc 42. The protective cover 43 has an arc-shaped opening on the side near the grinding position so that the grinding disc part is exposed to contact the pin shaft for grinding, while protecting the operator to the greatest extent.

[0023] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A device for circumferential grinding of a pin shaft, characterized in that: include: Workbench (1); Material support fixture (2), which is set at both ends above the middle of the workbench frame (1); The sliding mechanism (3) has two sets, including a base plate (31), a sliding rail (32), a sliding block (33), a mounting plate (34), and a hand crank (35). The base plate (31) is symmetrically arranged in the middle on the workbench (1) and perpendicular to the material guiding direction of the material support clamp (2). The sliding rail (32) is arranged on the base plate (31). The sliding block (33) is arranged on the sliding rail (32). The mounting plate (34) is arranged on the sliding block (33). A connecting plate is provided below the mounting plate (34). A fixing block is provided on the mounting plate (34). A threaded through hole is provided in the middle of the fixing block and a screw is inserted. One end of the screw is connected to the connecting plate. The hand crank (35) is installed on the other end of the screw. By cranking the hand crank (35) to rotate the screw, the mounting plate (34) is moved. The grinding mechanism (4) has two sets, including a drive motor (41), a grinding disc (42), and a protective cover (43). The drive motor (41) is mounted on the mounting plate (34), the grinding disc (42) is mounted on the output end of the drive motor (41), and the protective cover (43) covers the grinding disc (42).

2. The pin shaft circumferential grinding processing device according to claim 1, characterized in that: The material-bearing clamp (2) includes an adjustable clamp (21) and a fixed-point support (22). The adjustable clamp (21) is set at both ends of the middle of the workbench (1), and the fixed-point support (22) is set on both sides of the middle of the workbench (1), on both sides of the grinding position between the two sets of grinding discs (42).

3. The pin shaft circumferential grinding processing device according to claim 2, characterized in that: The adjustable clamp (21) includes a support frame (211), an adjustment mechanism (212), a lower roller (213), an upper roller (214), and a rotating motor (215). The support frame (211) is mounted on the workbench (1). The adjustment mechanism (212) is mounted above the support frame (211) and extends into the inside. There are two lower rollers (213) that are mounted at the same height in the lower middle part of the support frame (211). The upper roller (214) is mounted on the adjustment mechanism (212) and is located inside the upper part of the support frame (211). The rotating motor (215) is mounted outside the support frame (211) and connected to one of the lower rollers (213).

4. The pin shaft circumferential grinding processing device according to claim 3, characterized in that: The adjustment mechanism (212) includes a connecting frame (2121), a rotating screw (2122), and an adjusting rocker (2123). The rotating screw (2122) passes through the middle of the upper end of the support frame (211) and is installed through a threaded hole. The connecting frame (2121) is located at the lower end of the rotating screw (2122). An upper roller (214) is installed inside the connecting frame (2121). The upper roller (214) is directly opposite the middle of the two lower rollers (213) below. The adjusting rocker (2123) is located at the upper end of the rotating screw (2122).

5. The pin shaft circumferential grinding device according to claim 4, characterized in that: The support frame (211) has sliding grooves (2111) on both upper ends, and the connecting frame (2121) has protrusions at both ends. The width of the protrusions is equal to that of the sliding grooves (2111). The protrusions are inserted into the sliding grooves (2111) and can slide up and down to improve stability.

6. The pin shaft circumferential grinding processing device according to claim 5, characterized in that: The fixed-point support (22) includes a fixed-point bracket (221) and a fixed-point roller (222). The fixed-point bracket (221) is set in the fixed-point bracket (221) with the setting direction along the grinding direction. The fixed-point roller (222) is set between the fixed-point brackets (221).

7. The pin shaft circumferential grinding device according to claim 1, characterized in that: The protective cover (43) is designed to resemble the shape of the grinding disc (42), and an arc-shaped opening is provided on the side of the protective cover (43) near the grinding position.

8. The pin shaft circumferential grinding processing device according to claim 1, characterized in that: The workbench (1) is equipped with casters (11) and adjustable support legs (12) below.

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