Oil pipe end face grinding clamp with limiting and multiple clamping functions
By designing a multi-clamping oil pipe end face grinding fixture with limiting functions, the problem of single-time grinding error in the existing technology has been solved, realizing the synchronous clamping and stable grinding of multiple pipe parts, thus improving grinding quality and efficiency.
Patent Information
- Application Number
- CN202520209111.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing pipe end face grinding fixtures can only grind a single pipe part at a time and cannot stabilize the end, resulting in vibration during the grinding process, which causes positional deviation and errors.
A grinding fixture for oil pipe end faces with multiple clamping and limiting functions was designed. It includes a clamping and fixing plate, a pipe limiting port, a clamping structure and a feeding structure. It achieves synchronous clamping and limiting of multiple pipe parts through contour clamping parts and rotating folding plates, and realizes automatic feeding and stable positioning by combining with a feeding linear module.
This technology enables the simultaneous grinding of multiple pipe components, ensuring end stability, reducing vibration deviation, and improving grinding quality and production efficiency.
Smart Images
Figure CN223776743U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil pipe part machining frock, concretely relates to a kind of oil pipe end face polishing fixture with multiple clamping function of limiting. BACKGROUND
[0002] Oil transportation pipeline is a kind of pipeline parts that can transport liquefied petroleum and natural gas, which is usually buried underground for transportation and has good sealing performance.
[0003] During the processing of oil transportation pipeline, the two ends of the pipeline part need to be polished. Polishing smooth can install flange for sealing. Therefore, the existing polishing of pipeline parts is to fix the pipeline on a clamp and polish the surface of one end of the pipeline part by a polishing machine, which can polish the surface smooth.
[0004] In the existing polishing process, only one pipeline can be polished at the same time, and because the clamp uses a "V" block to fix, only the middle section of the pipeline part can be fixed and limited, and the part near the polishing section cannot be limited. During polishing, the pipeline part will vibrate due to the friction of the polishing machine, causing displacement deflection, which will cause polishing errors. Therefore, the existing polishing clamp has the problems of single polishing of single part and inability to stabilize the polishing end. SUMMARY
[0005] The utility model aims to polish multiple oil pipelines at the same time, and can clamp and fix the pipeline part near the polishing end to prevent the pipeline part from vibrating and causing position deviation during polishing, thereby preventing polishing errors.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: an oil pipe end face polishing fixture with multiple clamping and limiting functions, comprising a clamping and fixing plate, a plurality of pipeline limiting openings are formed in the clamping and fixing plate, a clamping structure is arranged on one side of the pipeline limiting opening, and a feeding structure is arranged on the other side. The clamping structure comprises two symmetrical clamping support plates, a clamping connecting block is fixedly connected to the clamping support plate, a profiling clamp is fixedly connected to the end of the clamping connecting block, two opposite profiling clamps form a group, the number of profiling clamps is the same as the number of pipeline limiting openings, the clamping structure further comprises a rotating flap rotatably connected to the clamping and fixing plate, a plurality of clamping support plates move with one end of the rotating flap, a blocking plate is fixedly arranged on the other end of the rotating flap, and the movement direction of the blocking plate is opposite to that of the clamping support plate.
[0007] Preferably, the clamping structure further includes a rotating bearing fixedly connected to the clamping plate, the rotating plate having a rotating groove, and the rotating bearing being rotatably connected within the rotating groove.
[0008] Preferably, the clamping structure further includes a clamping slide rod, on which a receiving block is fixedly connected. The receiving block and the clamping connecting block are fixedly connected. A clamping groove is provided on the clamping fixing plate, and the clamping slide rod is slidably connected in the clamping groove.
[0009] Preferably, the rotating folding plate has a first sliding groove and a second sliding groove, the clamping slide rod is slidably connected in the first sliding groove, and the clamping structure further includes a clamping cylinder fixedly connected to one side of the clamping fixing plate. The output end of the clamping cylinder is fixedly connected to a cylinder block, and a cylinder shaft is slidably connected in the cylinder block. The cylinder shaft is slidably connected in the second sliding groove.
[0010] Preferably, a blocking connecting rod is fixedly connected to one end of the rotating folding plate, and a blocking sliding rod is hinged to the blocking connecting rod, with the blocking sliding rod and the blocking plate being fixedly connected.
[0011] Preferably, the feeding structure includes a feeding linear module fixedly connected to the surface of the clamping plate, a feeding tray slidably connected to the feeding linear module, a feeding placement workpiece fixedly disposed on the feeding tray, and a contour groove formed on the feeding placement workpiece.
[0012] Preferably, a limit contact plate is fixedly connected to one end of the workpiece being placed.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The clamping structure is designed to allow for simultaneous switching between two modes: limiting contact and clamping the end of the pipe component. This achieves positioning and limiting functions, ensuring stability during processing and improving the grinding quality of the pipe component end.
[0015] 2. The feeding structure is set up to enable automatic feeding, and the feeding structure has limiters to ensure stability during the feeding process, further improving the quality of grinding.
[0016] 3. Multiple pipe limit ports are set up, which, together with the feeding structure and clamping structure, enable the simultaneous processing of multiple pipe parts, thereby improving the overall production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a grinding fixture for oil pipe end faces with limiting and multiple clamping functions according to this utility model. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the structure of a grinding fixture for oil pipe end faces with limiting and multiple clamping functions according to this utility model. Figure 2 ;
[0019] Figure 3 This is a schematic diagram of the structure of part of this utility model. Figure 1 ;
[0020] Figure 4 This is a schematic diagram of the structure of part of this utility model. Figure 2 .
[0021] In the picture:
[0022] 1. Clamping and fixing plate; 11. Pipe limiting port; 12. Clamping slide;
[0023] 2. Clamping structure; 21. Clamping support plate; 211. Clamping connecting block; 212. Contouring clamping component; 213. Clamping slide rod; 214. Receiving block; 22. Rotating folding plate; 221. Rotating bearing; 222. First slide groove; 223. Second slide groove; 224. Rotating groove; 23. Blocking plate; 231. Blocking connecting rod; 232. Blocking slide rod; 24. Clamping cylinder; 241. Cylinder block; 242. Cylinder shaft;
[0024] 3. Feeding structure; 31. Feeding linear module; 32. Feeding pallet; 33. Feeding and placing workpiece; 34. Contouring groove; 35. Limiting contact plate. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.
[0026] refer to Figures 1-4 A clamping and fixing plate 1 is set and fixed on the grinding table. Three pipe limiting ports 11 are opened on the clamping and fixing plate 1. Three pipe parts can be inserted into the three pipe limiting ports 11 for grinding one side surface of the three pipe parts at the same time.
[0027] refer to Figures 1-4A clamping structure 2 is provided on one side of the pipe limiting port 11. The clamping structure 2 can clamp and limit the processed end of the pipe part. The clamping structure 2 includes two symmetrically arranged clamping support plates 21. A clamping connecting block 211 is fixedly connected to the clamping support plate 21. A contour clamping member 212 is fixedly connected to the end of the clamping connecting block 211. The contour clamping member 212 is arc-shaped and can adapt to the outer wall shape of the pipe part. Two opposite contour clamping members 212 form a group. The number of groups of contour clamping members 212 is the same as the number of pipe limiting ports 11, which is three groups. The clamping structure 2 also includes a rotating folding plate 22 rotatably connected to the clamping fixing plate 1. Several clamping support plates 21 follow the rotation of the folding plate 22. The clamping structure 2 also includes a rotating bearing 221 fixedly connected to the clamping fixing plate 1. The rotating plate 22 rotates around the rotating bearing 221, which drives the two ends of the rotating plate 22 to move synchronously in opposite directions. The rotating plate 22 has a rotating groove 224, and the rotating bearing 221 is rotatably connected in the rotating groove 224. The clamping structure 2 also includes a clamping slide rod 213, and a receiving block 214 is fixedly connected to the clamping slide rod 213. The receiving block 214 and the clamping connecting block 211 are fixedly connected. The clamping fixing plate 1 has a clamping groove 12, and the clamping slide rod 213 is slidably connected in the clamping groove 12, so that the clamping support plate 21 moves along the length direction of the clamping groove 12 to realize the clamping action.
[0028] refer to Figures 1-4A blocking plate 23 is fixedly installed on the other end of the rotating folding plate 22. Two blocking plates 23 are symmetrically arranged and can move towards each other and abut against each other. The blocking plates 23 and the clamping support plate 21 move in opposite directions. When the two clamping support plates 21 drive the corresponding contour clamping parts 212 to move towards each other, the two blocking plates 23 move away from each other. The rotating folding plate 22 has a first sliding groove 222 and a second sliding groove 223. The clamping slide rod 213 is slidably connected in the first sliding groove 222. The clamping structure 2 also includes a clamping cylinder 24 fixedly connected to one side of the clamping fixed plate 1. The output end of the clamping cylinder 24 is fixedly connected to a cylinder block 241. A cylinder shaft 242 is slidably connected in the cylinder block 241. The cylinder shaft 242 is slidably connected in the second sliding groove 223, forming a clamping structure. The cylinder 24 drives the rotating baffle 22 to rotate, and drives the two ends of the rotating baffle 22 to move synchronously in opposite directions. This achieves the maximum distance between the two blocking plates 23 when the two contour clamping parts 212 are clamped on the side wall of the pipe part, so as not to affect the grinding process at the end of the pipe part. When the two contour clamping parts 212 are opened, the two blocking plates 23 will approach each other and abut. When the pipe part is loaded, it will abut against the surface of the blocking plate 23 and stop loading, thus achieving the positioning effect. One end of the rotating baffle 22 is fixedly connected to the blocking connecting rod 231, and the blocking connecting rod 231 is hinged to the blocking sliding rod 232. The blocking sliding rod 232 and the blocking plate 23 are fixedly connected, thus achieving the yielding effect between the mechanism of the blocking plate 23 part and the mechanism of the contour clamping part 212.
[0029] refer to Figures 1-4 On the other side of the pipe limiting port 11, a feeding structure 3 is provided, which can feed pipe parts. The feeding structure 3 includes a feeding linear module 31 fixedly connected to the surface of the clamping plate 1. The feeding linear module 31 is driven by a servo motor. A feeding tray 32 is slidably connected to the feeding linear module 31. A feeding placement workpiece 33 is fixedly set on the feeding tray 32. A contour groove 34 is opened on the feeding placement workpiece 33. The outer side of the pipe part is adapted to the shape of the contour groove 34, which can stably place the pipe component. The height of the contour groove 34 can be aligned with the position of the pipe limiting port 11 to ensure the accuracy of the position during the feeding process. A limit contact plate 35 is fixedly connected to one end of the feeding placement workpiece 33. The limit contact plate 35 can push the pipe part to move under the drive of the feeding linear module 31.
[0030] The working principle of this mechanism is as follows: When the pipe parts are being ground, three pipe parts are placed in the contour groove 34, and the feeding linear module 31 is started to feed them. After the pipe parts pass through the pipe limiting port 11, the clamping structure 2 is in a state where the two blocking plates 23 are in contact with each other and block the pipe parts on their travel path. When the pipe parts are pushed by the limiting contact plate 35 and come into contact with the surface of the blocking plate 23, the clamping cylinders 24 on both sides are activated. The piston rod of the clamping cylinder 24 will drive the rotating folding plate 22 to rotate, causing the blocking plate 23 to rise. At the same time, it will drive the contour clamping parts 212 at both ends to come closer to each other. When the contour clamping parts 212 at both ends come into contact with the side wall of the pipe parts, the contour clamping parts 212 will squeeze the side wall of the pipe parts, thereby fixing a small part of the end surface of the pipe parts. When the end of the pipe parts is being ground, it will not vibrate or shift due to the nearby clamping, making the grinding process of the pipe parts more precise.
[0031] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.
Claims
1. A grinding fixture for oil pipe end faces with multiple clamping and limiting functions, characterized in that: The device includes a clamping and fixing plate (1), which has several pipe limiting ports (11). A clamping structure (2) is provided on one side of each pipe limiting port (11), and a feeding structure (3) is provided on the other side. The clamping structure (2) includes two symmetrically arranged clamping support plates (21). A clamping connecting block (211) is fixedly connected to the clamping support plate (21), and a contour clamping member (212) is fixedly connected to the end of each clamping connecting block (211). The two opposing contour clamping members... The shaped clamping member (212) is a set, and the number of sets of the shaped clamping member (212) is the same as the number of pipe limiting ports (11). The clamping structure (2) also includes a rotating folding plate (22) rotatably connected to the clamping fixing plate (1). Several clamping support plates (21) follow one end of the rotating folding plate (22) to move. A blocking plate (23) is fixedly provided on the other end of the rotating folding plate (22). The blocking plate (23) and the clamping support plate (21) move in opposite directions.
2. The oil pipe end face grinding fixture with multiple clamping and limiting functions according to claim 1, characterized in that: The clamping structure (2) further includes a rotating bearing (221) fixedly connected to the clamping fixing plate (1). The rotating folding plate (22) has a rotating groove (224) and the rotating bearing (221) is rotatably connected in the rotating groove (224).
3. The oil pipe end face grinding fixture with multiple clamping functions according to claim 2, characterized in that: The clamping structure (2) further includes a clamping slide rod (213), on which a receiving block (214) is fixedly connected. The receiving block (214) and the clamping connecting block (211) are fixedly connected. A clamping groove (12) is provided on the clamping fixing plate (1), and the clamping slide rod (213) is slidably connected in the clamping groove (12).
4. The oil pipe end face grinding fixture with multiple clamping functions according to claim 3, characterized in that: The rotating folding plate (22) is provided with a first sliding groove (222) and a second sliding groove (223). The clamping slide rod (213) is slidably connected in the first sliding groove (222). The clamping structure (2) also includes a clamping cylinder (24) fixedly connected to one side of the clamping fixing plate (1). The output end of the clamping cylinder (24) is fixedly connected to a cylinder block (241). A cylinder shaft (242) is slidably connected in the cylinder block (241). The cylinder shaft (242) is slidably connected in the second sliding groove (223).
5. A grinding fixture for oil pipe end faces with multiple clamping functions according to claim 1, characterized in that: One end of the rotating folding plate (22) is fixedly connected to a blocking connecting rod (231), and a blocking sliding rod (232) is hinged on the blocking connecting rod (231). The blocking sliding rod (232) and the blocking plate (23) are fixedly connected.
6. The oil pipe end face grinding fixture with multiple clamping functions according to claim 1, characterized in that: The feeding structure (3) includes a feeding linear module (31) fixedly connected to the surface of the clamping plate (1), a feeding tray (32) is slidably connected to the feeding linear module (31), a feeding placement workpiece (33) is fixedly arranged on the feeding tray (32), and a contour groove (34) is opened on the feeding placement workpiece (33).
7. A grinding fixture for oil pipe end faces with multiple clamping functions according to claim 6, characterized in that: One end of the loading and placing workpiece (33) is fixedly connected to a limit contact plate (35).