High-efficiency anti-deviation nylon rod drawing positioning jig

Abstract

This utility model relates to the field of positioning fixture technology, and in particular to a high-efficiency anti-displacement nylon rod pulling positioning fixture, comprising a substrate, a product, and a nylon rod. A fixture mechanism is provided on the substrate for pulling the nylon rod to form a through hole inside the product. The fixture mechanism includes: a main body assembly, comprising a housing fixed to the bottom of the substrate; a positioning assembly, comprising a stand fixed to the front end of the top of the substrate, with a mounting groove at the upper end of the stand, into which a mounting block is inserted, and an insertion hole inside the mounting block; and a fixing block bolted to the upper end of the stand to fix the mounting block inside the mounting groove; and a pulling assembly, comprising a cylinder mounted at the rear end of the top of the substrate, with a slide fixed to the output end of the cylinder. By inserting the product with the nylon rod into the positioning assembly, and then clamping it with the pulling assembly and applying force along the axis to pull it, a high-quality through hole is formed inside the product, achieving high efficiency and preventing displacement throughout the process.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a high-efficiency anti-displacement nylon rod pull-out positioning fixture. Background Technology

[0002] In the field of modern industrial manufacturing, nylon rods, as a common engineering plastic material, are widely used in various precision parts and structural components due to their good mechanical properties, wear resistance and corrosion resistance. According to CN210333798U, a drawing die is disclosed. This technology discloses a technical solution including "a hollow sleeve, a hollow drawing head connected to one end of the sleeve, and a push rod sleeved in the sleeve and the drawing head. The free end sidewall of the drawing head is provided with multiple through holes with a diameter greater than the wall thickness of the drawing head. A steel ball with a diameter matching the through hole is provided in the through hole. The outer diameter of the through hole is smaller than the diameter of the steel ball. The part of the push rod located in the drawing head includes a limiting section at the end and an adjacent holding section. The diameter of the limiting section is smaller than the diameter of the holding section. When the push rod is pushed towards the drawing head, the sidewall of the holding section abuts against the steel ball and exposes the steel ball from the through hole." This technology has the technical effect of "drawing the hole wall of the pipe, which can increase the thickness of the welding position and improve the welding strength." Existing drawing methods lack effective radial constraints and concentricity guarantees, making it easy for the mandrel to deviate, jam, or be scratched on the surface during extraction, resulting in defects in the inner hole quality of the product and a decrease in yield. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a high-efficiency anti-deviation nylon rod pulling and positioning fixture. By inserting a product with a nylon rod into the positioning component, and then clamping it with the pulling component and applying force along the axis to pull it, a high-quality through hole is formed in the product, effectively preventing deviation throughout the entire process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency anti-displacement nylon rod pulling and positioning fixture, comprising a substrate, a product, and a nylon rod, wherein the substrate is provided with a fixture mechanism for pulling the nylon rod to form a through hole inside the product, and the fixture mechanism includes: The main component includes a housing fixed to the bottom of the substrate; The positioning component includes a stand fixed to the top front end of the substrate. The upper end of the stand has a mounting groove, into which a mounting block is inserted. The mounting block has an insertion hole. A fixing block is bolted to the upper end of the stand and is used to fix the mounting block inside the mounting groove. The drawing assembly includes a cylinder mounted on the rear end of the top of the substrate, a slide fixed to the front output end of the cylinder, and a clamping component on the slide for clamping the nylon rod.

[0005] Preferably, the clamping component positioning fixture includes a cylinder positioning fixture fixed to the front end of the slide positioning fixture, a shaft seat positioning fixture fixed to the front end of the cylinder positioning fixture, three circumferentially distributed gripper positioning fixtures hinged inside the shaft seat positioning fixture, a serrated plate positioning fixture fixed to the inner wall of the gripper positioning fixture, a piston rod positioning fixture installed inside the cylinder positioning fixture, a shaft frame positioning fixture fixed to the front end of the piston rod positioning fixture, and the gripper positioning fixture and the shaft frame positioning fixture hinged together.

[0006] Preferably, the main component further includes a discharge port opened inside the substrate, and the discharge port is located behind the stand. A material collection trough is installed at the front end of the housing and located directly below the discharge port, and a storage trough is installed at the rear end of the housing.

[0007] Preferably, the positioning component further includes grooves formed on the inner walls of the left and right ends of the mounting slot, and protrusions fixed on the outer walls of the left and right ends of the mounting block and cooperating with the grooves.

[0008] Preferably, the positioning component further includes a pad fixed to the top of the fixing block.

[0009] Preferably, the pulling assembly further includes a guide rail fixed to the center of the top of the substrate, a slider slidably mounted on the guide rail, and a slide block fixed on the slider.

[0010] Beneficial effects This invention provides a high-efficiency anti-deviation nylon rod pull-out positioning fixture. Compared with the prior art, it has the following advantages: 1. By passing a nylon rod through the product and allowing one end to extend fully, the product with the extended nylon rod end is inserted into the socket of the mounting block. The socket provides positioning and radial constraint for the product, ensuring it cannot move. Then, the cylinder output extends to push the slide and its clamping components forward to the clamping position, where the clamping components hold the extended portion of the nylon rod. Subsequently, the cylinder output retracts to drive the clamping components to apply a pulling force that is completely aligned with the axis of the nylon rod, pulling the nylon rod completely out of the product, thus forming a through hole inside the product.

[0011] 2. When clamping is required, the piston rod inside the cylinder retracts backward, pulling the hinged shaft to move backward. The shaft simultaneously pulls three circumferentially distributed grippers to synchronously retract inward with their hinge points with the shaft seat as the center. This causes the serrated plates fixed to the inner wall of the grippers to tightly contact and bite the outer circumferential surface of the nylon rod, thus achieving clamping. By using the synchronous movement of the three circumferentially distributed grippers, the clamping force generated is evenly distributed in the circumferential direction of the nylon rod, achieving automatic centering and ensuring that the clamping center coincides with the axis of the nylon rod, preventing pull-out deviation. Attached Figure Description

[0012] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the positioning component in this utility model; Figure 3 This is an exploded view of the pull-out assembly in this utility model; Figure 4 This is a schematic diagram of the structure of the nylon rod inserted into the product in this utility model.

[0013] In the diagram: 1. Base plate; 2. Fixture mechanism; 21. Main component; 211. Housing; 212. Discharge port; 213. Collection trough; 214. Storage trough; 22. Positioning component; 221. Stand; 222. Mounting groove; 223. Mounting block; 224. Insertion hole; 225. Fixing block; 226. Groove; 227. Raised strip; 228. Pad; 23. Pulling component; 231. Cylinder; 232. Slide; 233. Clamping component; 2331. Cylinder body; 2332. Shaft seat; 2333. Gripper; 2334. Serrated plate; 2335. Piston rod; 2336. Shaft bracket; 234. Guide rail; 235. Slider; 3. Product; 4. Nylon rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0015] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a high-efficiency anti-displacement nylon rod pulling and positioning fixture, including a base plate 1, a product 3, and a nylon rod 4. A fixture mechanism 2 is provided on the base plate 1 for pulling the nylon rod 4 to form a through hole inside the product 3. The fixture mechanism 2 includes: The main component 21 includes a housing 211 fixed to the bottom of the substrate 1; The positioning component 22 includes a stand 221 fixed to the top front end of the substrate 1. The upper end of the stand 221 has a mounting groove 222. A mounting block 223 is inserted into the mounting groove 222. The mounting block 223 has an insertion hole 224. A fixing block 225 is bolted to the upper end of the stand 221 and is used to fix the mounting block 223 inside the mounting groove 222. The drawing assembly 23 includes a cylinder 231 mounted on the top rear end of the substrate 1. A slide block 232 is fixed to the front output end of the cylinder 231. A clamping component 233 is provided on the slide block 232 for clamping the nylon rod 4.

[0016] In this embodiment, the nylon rod 4 is passed through the product 3 and one end is fully extended. Then, the end of the product 3 with the extended nylon rod 4 is inserted into the insertion hole 224 of the mounting block 223. The insertion hole 224 positions and radially constrains the product 3, ensuring that it cannot move. Then, the output end of the cylinder 231 extends to push the slide block 232 and its clamping component 233 forward to the clamping position. The clamping component 233 clamps the extended part of the nylon rod 4. Then, the output end of the cylinder 231 retracts to drive the clamping component 233 to apply a pulling force that is completely aligned with the axis of the nylon rod 4, pulling the nylon rod 4 completely out of the product 3, thereby forming a through hole inside the product 3.

[0017] Specifically, the clamping component 233 includes a cylinder 2331 fixed to the front end of the slide block 232, a bearing 2332 fixed to the front end of the cylinder 2331, three circumferentially distributed grippers 2333 hinged inside the bearing 2332, a serrated plate 2334 fixed to the inner wall of the grippers 2333, a piston rod 2335 installed inside the cylinder 2331, a shaft bracket 2336 fixed to the front end of the piston rod 2335, and the grippers 2333 are hinged to the shaft bracket 2336.

[0018] In this embodiment, when clamping is required, the piston rod 2335 inside the cylinder 2331 retracts backward, pulling the hinged shaft 2336 backward. The shaft 2336 simultaneously pulls three circumferentially distributed grippers 2333 to converge inward synchronously with their hinge point with the shaft seat 2332 as the center. This causes the serrated plate 2334 fixed on the inner wall of the grippers 2333 to come into close contact with and bite the outer circumferential surface of the nylon rod 4, thus achieving clamping. By using the synchronous movement of the three circumferentially distributed grippers 2333, the clamping force generated is evenly distributed in the circumferential direction of the nylon rod 4, achieving automatic centering and ensuring that the clamping center coincides with the axis of the nylon rod 4, preventing pull-out deviation.

[0019] Specifically, the main component 21 also includes a discharge port 212 opened inside the substrate 1, and the discharge port 212 is located behind the support frame 221. A material collection trough 213 is installed at the front end of the housing 211 and located directly below the discharge port 212. A storage trough 214 is installed at the rear end of the housing 211.

[0020] In this embodiment, after the nylon rod 4 is completely pulled out of the product 3, the clamping component 233 releases its clamp, allowing the nylon rod 4 to fall naturally under its own weight and accurately fall into the collection trough 213 located inside the housing 211 directly below it through the discharge port 212 opened on the substrate 1, thereby completing the automatic collection of the used nylon rod; the storage trough 214 is used to centrally store the mounting blocks 223 with other different diameter insertion holes 224, so that the operator can quickly select and replace the mounting block 223 with the matching insertion hole 224 from the storage trough 214 according to the different specifications of the product 3 being processed.

[0021] Specifically, the positioning component 22 also includes grooves 226 formed on the inner walls of the left and right ends of the mounting groove 222, and protrusions 227 fixed on the outer walls of the left and right ends of the mounting block 223 and cooperating with the grooves 226.

[0022] In this embodiment, when the mounting block 223 needs to be replaced, the operator aligns the protrusions 227 on both sides of its outer wall with the grooves 226 on the inner walls of the left and right ends of the mounting groove 222, and then pushes the mounting block 223 into the mounting groove 222 along the axial direction. The precise fit between the protrusions 227 and the grooves 226 provides precise radial constraint and guidance for the insertion movement of the mounting block 223, ensuring that it cannot be radially offset or rotated until it reaches the predetermined installation position, and finally is pressed and fixed by the fixing block 225.

[0023] Specifically, the positioning component 22 also includes a pad 228 fixed to the top of the fixing block 225.

[0024] In this embodiment, the pad 228 serves as a protective spacer between the product 3 and the upper end of the positioning component 22, preventing the product 3 from making direct hard contact and collision with the fixing block 225, and preventing the upper surface of the product 3 from being scratched, dented, or bumped during frequent clamping operations.

[0025] Specifically, the pull assembly 23 also includes a guide rail 234 fixed to the top center of the substrate 1, a slider 235 slidably mounted on the guide rail 234, and a slide block 232 fixed on the slider 235.

[0026] In this embodiment, the guide rail 234 and the slider 235 constitute a high-precision linear guide mechanism to ensure that the slide block 232 and the clamping component 233 move along a strict linear trajectory and avoid radial offset during the movement.

[0027] The working principle and usage process of this utility model are as follows: First, before operation, the operator selects the mounting block 223 with matching diameter insertion hole 224 from the storage groove 214 at the rear end of the shell 211 according to the specifications of the product 3 to be processed. The operator then aligns the protrusions 227 on both sides of the mounting block 223 with the groove 226 on the inner wall of the mounting groove 222 of the stand 221 and pushes it in precisely until the mounting block 223 is in place. Then, the operator uses bolts to press and fix the fixing block 225, thus completing the quick change of the fixture. Subsequently, the nylon rod 4 is passed through the product 3 and one end is fully extended. The product 3 is held with both hands and the end with the extended nylon rod 4 is vertically inserted into the insertion hole 224 of the mounting block 223 until the upper surface of the product 3 contacts the protective pad 228 on the top of the fixing block 225. At this time, the inner wall of the insertion hole 224 has formed a circumferential constraint on the product 3, ensuring that it is absolutely fixed in the subsequent pull-out. Then, the equipment is started, the piston rod of cylinder 231 extends, pushing slide 232 to move smoothly forward along the high-precision linear guide mechanism formed by guide rail 234 and slider 235, driving the clamping component 233 at the front end to move to the clamping position; the piston rod 2335 inside cylinder 2331 retracts, and through the shaft frame 2336, the three circumferentially distributed jaws 2333 are pulled inward synchronously around the hinge point of shaft seat 2332, so that the serrated plates 2334 on the inner wall of the jaws 2333 evenly hug and bite the protruding end of nylon rod 4; immediately afterward, the piston rod of cylinder 231 retracts, and through the clamping component 233, a pure axial pulling force completely coincides with the axis of nylon rod 4 is applied, so that it is smoothly and completely pulled out from product 3, thereby forming a through hole with precise dimensions and smooth inner wall inside product 3; After the pulling is completed, the clamping component 233 is released, and the pulled-out nylon rod 4 automatically falls into the collection trough 213 below through the discharge port 212 on the substrate 1 under the action of gravity.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency anti-deviation nylon rod pull-out positioning fixture, comprising a substrate (1), a product (3), and a nylon rod (4), characterized in that: A fixture mechanism (2) is provided on the substrate (1) and is used to pull the nylon rod (4) to form a through hole inside the product (3). The fixture mechanism (2) includes: The main component (21) includes a housing (211) fixed to the bottom of the substrate (1). The positioning component (22) includes a stand (221) fixed to the top front end of the substrate (1). The upper end of the stand (221) is provided with a mounting groove (222). A mounting block (223) is inserted into the mounting groove (222). An insertion hole (224) is provided inside the mounting block (223). A fixing block (225) is installed on the upper end of the stand (221) by bolts and is used to fix the mounting block (223) inside the mounting groove (222). The pulling assembly (23) includes a cylinder (231) mounted on the top rear end of the substrate (1), a slide (232) fixed at the front output end of the cylinder (231), and a clamping component (233) provided on the slide (232) for clamping the nylon rod (4).

2. The high-efficiency anti-deviation nylon rod drawing positioning jig according to claim 1, characterized in that: The clamping component (233) includes a cylinder (2331) fixed to the front end of the slide (232), a bearing (2332) fixed to the front end of the cylinder (2331), three circumferentially distributed grippers (2333) hinged inside the bearing (2332), a serrated plate (2334) fixed to the inner wall of the grippers (2333), a piston rod (2335) installed inside the cylinder (2331), a shaft frame (2336) fixed to the front end of the piston rod (2335), and the grippers (2333) are hinged to the shaft frame (2336).

3. The high-efficiency anti-deviation nylon rod pull-out positioning fixture according to claim 1, characterized in that: The main component (21) also includes a discharge port (212) opened inside the substrate (1), and the discharge port (212) is located behind the stand (221). A material collection trough (213) is installed at the front end of the housing (211) and located directly below the discharge port (212). A storage trough (214) is installed at the rear end of the housing (211).

4. The high-efficiency anti-deviation nylon rod pull-out positioning fixture according to claim 1, characterized in that: The positioning component (22) also includes grooves (226) formed on the inner walls of the left and right ends of the mounting groove (222), and protrusions (227) are fixed on the outer walls of the left and right ends of the mounting block (223) and cooperate with the grooves (226).

5. The high-efficiency anti-deviation nylon rod pull-out positioning fixture according to claim 1, characterized in that: The positioning component (22) also includes a pad (228) fixed to the top of the fixing block (225).

6. The high-efficiency anti-deviation nylon rod pull-out positioning fixture according to claim 1, characterized in that: The pull assembly (23) also includes a guide rail (234) fixed in the middle of the top of the substrate (1), a slider (235) is slidably mounted on the guide rail (234), and a slide block (232) is fixed on the slider (235).

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