A chain pin shaft assembly coaxiality guiding tool

Abstract

The utility model discloses a chain pin shaft assembly coaxality guide frock relates to pin shaft assembly technical field, the utility model discloses a supporting base is provided with clamping device on the top, the supporting base and clamping device are the stable support basis of device, still include assembly mechanism, the assembly mechanism is connected with the supporting plate and sets up, the utility model discloses a drive assembly and adjusting assembly are set up, specifically is the rotation of starting motor no.

Description

Technical Field

[0001] This utility model belongs to the field of pin assembly technology, and in particular relates to a coaxiality guiding tool for chain pin assembly. Background Technology

[0002] In the chain production process, the precise assembly of the pins and chain plates is a key link to ensure product quality and performance. In the past, in order to meet the needs of different specifications or models of products, it was usually necessary to replace the entire set of tooling. This is because the traditional tooling design lacks flexibility and adjustability, making it difficult to adapt to diverse production requirements. Each tooling replacement not only consumes a lot of time and manpower, but also increases the investment cost of equipment. For example, when the size, shape or process requirements of the product change, the original tooling may not be able to meet the new production needs, and new tooling must be redesigned and manufactured. This undoubtedly brings a great burden to the production of enterprises. For this reason, a coaxiality guiding tooling for chain pin assembly is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a coaxiality guiding fixture for chain pin assembly. By setting up a driving component and an adjusting component, specifically, starting motor one drives gear one and gear two to rotate, so that gear two drives the threaded rod to swing through the connecting block and synchronously drives the guide sleeve to move. Then, motor two drives the threaded rod to rotate, and the position of the guide sleeve is adjusted again through the stamping device. This solves the problem that in the previous production process, in order to meet the needs of different specifications or models of products, it is usually necessary to replace the entire set of fixtures. This is because the traditional fixture design lacks flexibility and adjustability, and it is difficult to adapt to diverse production requirements. Each time the fixture is replaced, it not only consumes a lot of time and manpower, but also increases the investment cost of equipment.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a coaxiality guiding fixture for chain pin assembly, comprising a support base, a clamping device disposed above the support base, the support base and the clamping device forming a stable support foundation for the fixture, and further comprising:

[0006] An assembly mechanism is connected to a support plate, and the assembly mechanism installs the pin and chain plate hole through adjustment and guidance.

[0007] The assembly mechanism includes a drive component and an adjustment component. The drive component includes a second gear with a connecting block welded to its inner wall. The adjustment component includes a threaded rod with a connecting bracket threaded to its outer surface.

[0008] Furthermore, the assembly mechanism also includes:

[0009] A guide assembly is disposed below the adjustment assembly, and the adjustment assembly is used to vertically guide the pin.

[0010] Furthermore, support rods are welded to the four corners of the top of the support base, the tops of the four connecting brackets are welded to the four corners of the bottom of the support plate, a clamping device is installed on the top of the support base, and a stamping device is provided above the clamping device.

[0011] Furthermore, a protective cover is installed on the top left side of the support plate, a motor is installed on the top of the protective cover, a gear is provided on the right side inside the protective cover, the bottom output end of the motor is connected to the inside of the gear through a coupling, the outer surface of the gear is meshed with the outer surface of the gear, and the connecting block penetrates the support plate and extends to the bottom.

[0012] The bottom of the connecting block is rectangular.

[0013] Furthermore, the left side of the outer surface of the threaded rod is rotatably connected to the inside of the connecting block, and a second motor is installed on the left side of the connecting block. The right output end of the second motor is connected to the left side of the threaded rod through a coupling.

[0014] Furthermore, a slide rail is provided on the side of the threaded rod away from the second motor. The top of the slide rail is welded to the bottom of the support plate. A slider is slidably connected inside the slide rail. The left side of the slider is rotatably connected to the right side of the threaded rod. A limiting slide rod is provided outside the threaded rod. The left and right sides of the limiting slide rod are respectively connected to the connecting block and the slider. The left and right sides of the outer surface of the limiting slide rod are slidably connected to the front and back sides inside the connecting bracket. The bottom of the connecting bracket is installed and connected to the top of the stamping device.

[0015] The slide rail is arc-shaped, the slider is rectangular, and the interior of the slide rail is adapted to the outer surface of the slider.

[0016] Furthermore, the guiding assembly includes a guide sleeve, a support frame welded to the outside of the guide sleeve, the end of the support frame away from the guide sleeve being connected to the outside of the stamping device, a plurality of cavities being opened inside the guide sleeve, springs being connected to the inner walls of the plurality of cavities, push rods being connected to the corresponding sides of the plurality of springs, and limit clamps being connected to the sides of the plurality of push rods away from the springs.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a drive component and an adjustment component, specifically starts a motor to drive gear one and gear two to rotate, so that gear two drives the threaded rod to swing through the connecting block and synchronously drives the guide sleeve to move. Then, motor two drives the threaded rod to rotate, and the position of the guide sleeve is adjusted again through the stamping device, which improves the axial accuracy of the guide sleeve and the chain plate hole. By adjusting the stamping device to compensate for processing and installation errors, the stamping force is accurately applied to the pin axis, avoiding the deformation of parts caused by misalignment, thereby reducing equipment investment and adapting to the production needs of multiple varieties.

[0019] 2. This utility model, by setting a guide component, specifically inserts the pin into the guide sleeve. The multiple limiting clamps inside it open outward after being squeezed, driving the push rod to compress the spring to store energy. The spring's rebound force causes the limiting clamps to reset and clamp the pin. When the stamping device applies pressure, it can accurately correct the perpendicularity between the pin and the chain plate hole, effectively preventing axis offset, one-sided friction and jamming caused by tilting, significantly improving coaxiality accuracy, and reducing uneven wear and abnormal noise problems during chain operation.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the slide rail of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the slider of this utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide sleeve of this utility model;

[0026] Figure 5 This utility model Figure 4 A magnified structural diagram of A.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 111. Support base; 112. Clamping device; 113. Support rod; 114. Support plate; 115. Stamping device; 2. Assembly mechanism; 21. Drive assembly; 211. Protective cover; 212. Motor 1; 213. Gear 1; 214. Gear 2; 215. Connecting block; 22. Adjustment assembly; 221. Motor 2; 222. Threaded rod; 223. Connecting bracket; 224. Slide rail; 225. Slider; 226. Limiting slide rod; 23. Guide assembly; 231. Guide sleeve; 232. Support frame; 233. Cavity; 234. Limiting clamp; 235. Push rod; 236. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 As shown, this utility model is a coaxiality guiding tool for chain pin assembly, including a support base 111, a clamping device 112 disposed above the support base 111, the support base 111 and the clamping device 112 forming a stable support foundation for the device, and further including:

[0031] Assembly mechanism 2 is connected to support plate 114. Assembly mechanism 2 installs the pin and chain plate hole through adjustment and guidance.

[0032] The assembly mechanism 2 includes a drive component 21 and an adjustment component 22. The drive component 21 includes a gear 214, and a connecting block 215 is welded to the inner wall of the gear 214. The adjustment component 22 includes a threaded rod 222, and a connecting bracket 223 is threadedly connected to the outer surface of the threaded rod 222.

[0033] Assembly mechanism 2 also includes:

[0034] Guide component 23 is located below adjustment component 22, which is used to vertically guide the pin.

[0035] Support rods 113 are welded to the four corners of the top of the support base 111. The tops of the four connecting brackets 223 are welded to the four corners of the bottom of the support plate 114. A clamping device 112 is installed on the top of the support base 111. A stamping device 115 is set above the clamping device 112.

[0036] A protective cover 211 is installed on the top left side of the support plate 114. A motor 212 is installed on the top of the protective cover 211. A gear 213 is located on the right side inside the protective cover 211. The bottom output end of the motor 212 is connected to the inside of the gear 213 via a coupling through the gear 214. The outer surface of the gear 213 meshes with the outer surface of the gear 214. A connecting block 215 penetrates the support plate 114 and extends to the bottom. The bottom of the connecting block 215 is rectangular. The left side of the outer surface of the threaded rod 222... The side is rotatably connected to the inside of the connecting block 215. A second motor 221 is installed on the left side of the connecting block 215. The right output end of the second motor 221 is connected to the left side of the threaded rod 222 via a coupling. A slide rail 224 is provided on the side of the threaded rod 222 away from the second motor 221. The top of the slide rail 224 is welded to the bottom of the support plate 114. A slider 225 is slidably connected inside the slide rail 224. The left side of the slider 225 is rotatably connected to the right side of the threaded rod 222. A limit slide rod 226 is provided outside the threaded rod 222. The left and right sides of the limiting slide rod 226 are connected to the connecting block 215 and the slider 225 respectively. The left and right sides of the outer surface of the limiting slide rod 226 are slidably connected to the front and back sides of the inside of the connecting bracket 223. The bottom of the connecting bracket 223 is installed and connected to the top of the stamping device 115. The slide rail 224 is arc-shaped and the slider 225 is rectangular. The inside of the slide rail 224 is adapted to the outer surface of the slider 225. The motor 1 212 drives the gear 1 213 and the gear 2 214 to rotate, so that the gear 2 214 drives the threaded rod 222 to swing through the connecting block 215 and simultaneously drive the guide sleeve 231 to move. Then the motor 2 221 drives the threaded rod 222 to rotate, and the position of the guide sleeve 231 is adjusted again through the stamping device 115 to improve the axial accuracy of the guide sleeve 231 and the chain plate hole. By adjusting the stamping device 115 to compensate for processing and installation errors, the stamping force is accurately applied to the pin axis, avoiding the deformation of parts caused by skewing, thereby reducing equipment investment and adapting to the needs of multi-variety production.

[0037] The guide assembly 23 includes a guide sleeve 231, with a support frame 232 welded to the outside of the guide sleeve 231. The end of the support frame 232 away from the guide sleeve 231 is connected to the outside of the stamping device 115. The guide sleeve 231 has several cavities 233 inside, and springs 236 are connected to the inner walls of each cavity 233. Push rods 235 are connected to the corresponding sides of each spring 236, and limit clamps 23 are connected to the sides of each push rod 235 away from the springs 236. 4. Insert the pin into the guide sleeve 231. The multiple limiting clamps 234 inside the sleeve are squeezed and open outward, driving the push rod 235 to compress the spring 236 to store energy. The spring 236 rebounds and causes the limiting clamps 234 to reset and clamp the pin. When the stamping device 115 applies pressure, the perpendicularity between the pin and the chain plate hole can be accurately corrected, effectively preventing axis offset, one-sided friction and jamming caused by tilting, significantly improving coaxiality accuracy and reducing uneven wear and abnormal noise problems during chain operation.

[0038] A specific application of this embodiment is as follows: In use, the chain is first clamped and fixed by the clamping device 112 to reduce chain movement during pin installation. Then, the operator starts motor 212 according to the position of the chain plate hole, driving gear 213 to rotate. When gear 213 rotates, it drives gear 214 to rotate as well. During the rotation of gear 214, the threaded rod 222 swings through the connecting block 215. At the same time, the threaded rod 222 moves the guide sleeve 231 through the stamping device 115. When the threaded rod 222 swings, it drives the slider 225 to slide inside the slide rail 224. The slide rail 224 supports the threaded rod 222 through the slider 225. Then, motor 221 is started to drive the threaded rod 222 to rotate. When the threaded rod 222 rotates, it will drive the connecting bracket 223 to move. At this time, the connecting bracket 223 will move by the limiting slide rod 226. During the movement of the connecting bracket 223, the stamping device 115 will drive the guide sleeve 231 to move again until the guide sleeve 231 is aligned with the axial direction of the chain plate hole. There is no need to replace the entire set of tooling. Only by adjusting the position of the stamping device 115, diversified production can be met, reducing equipment investment costs. At the same time, in actual production, the machining error of the chain plate hole, the installation error of the tooling, etc. may cause the relative position of the pin shaft and the stamping device 115 to be offset. By fine-tuning the stamping device 115, these accumulated errors can be offset, and the stamping force can be accurately applied to the axis of the pin shaft, reducing the situation of pin shaft bending or chain plate deformation caused by force misalignment.

[0039] Then, the pin is inserted into the guide sleeve 231. Simultaneously, the guide sleeve 231 is welded to the outside of the support rod 113 via the support frame 232. When the pin is inserted into the guide sleeve 231, the multiple limiting plates 234 inside the guide sleeve 231 are pushed away from each other by force. At the same time, the multiple limiting plates 234 drive the push rod 235 to slide into the cavity 233. During the sliding process of the push rod 235, it compresses the spring 236. Therefore, the spring 236 is limited by the inner wall of the cavity 233. The mechanism contracts and stores energy. Multiple springs 236 generate a certain rebound force, which drives the limiting clamp 234 to reset. During the reset process of the limiting clamp 234, the pin is clamped. When the pin is then pressured by the stamping device 115, the vertical angle between the pin and the chain plate hole is increased, avoiding the offset of the pin from the axis of the chain plate hole caused by the tilt of the pin. This directly reduces the unilateral friction or jamming between the pin and the hole wall, improves the coaxiality accuracy between the pin and the chain plate hole after assembly, and reduces problems such as uneven wear and abnormal noise during chain operation.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A chain pin assembly coaxiality guiding fixture, comprising a support base (111), wherein a clamping device (112) is disposed above the support base (111), the support base (111) and the clamping device (112) forming a stable support foundation for the fixture, characterized in that, Also includes: Assembly mechanism (2), which is connected to support plate (114), and the assembly mechanism (2) installs the pin and chain plate hole through adjustment and guidance; The assembly mechanism (2) includes a drive assembly (21) and an adjustment assembly (22). The drive assembly (21) includes a second gear (214), and a connecting block (215) is welded to the inner wall of the second gear (214). The adjustment assembly (22) includes a threaded rod (222), and a connecting bracket (223) is threaded to the outer surface of the threaded rod (222).

2. The chain pin assembly coaxiality guide fixture according to claim 1, characterized in that, The assembly mechanism (2) also includes: A guide component (23) is disposed below an adjustment component (22), which is used to vertically guide the pin.

3. The chain pin assembly coaxiality guiding fixture according to claim 1, characterized in that, The support base (111) has support rods (113) welded to the four corners of the top. The top of the four connecting brackets (223) is welded to the four corners of the bottom of the support plate (114). The support base (111) has a clamping device (112) installed on the top. The clamping device (112) has a stamping device (115) above it.

4. The chain pin assembly coaxiality guide fixture according to claim 1, characterized in that, A protective cover (211) is installed on the top left side of the support plate (114). A motor (212) is installed on the top of the protective cover (211). A gear (213) is provided on the right side inside the protective cover (211). The bottom output end of the motor (212) is connected to the inside of the gear (213) through a coupling through the gear (214). The outer surface of the gear (213) meshes with the outer surface of the gear (214). The connecting block (215) penetrates the support plate (114) and extends to the bottom. The bottom of the connecting block (215) is rectangular.

5. The chain pin assembly coaxiality guide fixture according to claim 1, characterized in that, The left side of the outer surface of the threaded rod (222) is rotatably connected to the inside of the connecting block (215). A second motor (221) is installed on the left side of the connecting block (215). The right output end of the second motor (221) is connected to the left side of the threaded rod (222) through a coupling.

6. The chain pin assembly coaxiality guide fixture according to claim 5, characterized in that, A slide rail (224) is provided on the side of the threaded rod (222) away from the motor (221). The top of the slide rail (224) is welded to the bottom of the support plate (114). A slider (225) is slidably connected inside the slide rail (224). The left side of the slider (225) is rotatably connected to the right side of the threaded rod (222). A limiting slide rod (226) is provided outside the threaded rod (222). The left and right sides of the limiting slide rod (226) are respectively connected to the connecting block (215) and the slider (225). The left and right sides of the outer surface of the limiting slide rod (226) are slidably connected to the front and back sides inside the connecting bracket (223). The bottom of the connecting bracket (223) is installed and connected to the top of the stamping device (115). The slide rail (224) is arc-shaped, the slider (225) is rectangular, and the interior of the slide rail (224) is adapted to the outer surface of the slider (225).

7. The chain pin assembly coaxiality guide fixture according to claim 2, characterized in that, The guide assembly (23) includes a guide sleeve (231), a support frame (232) is welded to the outside of the guide sleeve (231), and the end of the support frame (232) away from the guide sleeve (231) is connected to the outside of the stamping device (115). The guide sleeve (231) has several cavities (233) inside, and springs (236) are connected to the inner walls of the several cavities (233). Push rods (235) are connected to the corresponding side of the several springs (236), and limit clamps (234) are connected to the side of the several push rods (235) away from the springs (236).

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