A machining positioning device
By using a support frame and a motor-driven lead screw system in conjunction with limit blocks and guide rods, the problem of existing devices being unable to adapt to different pipe diameters is solved, enabling rapid positioning and welding of tubular parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YAJIN HIGH-TECH EQUIP MFG CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-31
AI Technical Summary
Existing machining positioning devices are difficult to adapt to tubular parts of different diameters, resulting in positioning difficulties during welding.
The system employs a support frame, protective frame, No. 1 motor, No. 1 worm gear reducer, lead screw, push plate, push rod, fixing plate, limit rod, and connecting plate to achieve horizontal movement of the No. 2 limit frame within the No. 1 limit frame. Furthermore, the system utilizes a positioning frame, limit block, and guide rod to adjust the internal space for clamping and fixing tubular parts of different diameters. Simultaneously, the system uses an mounting slot, No. 2 motor, No. 2 worm gear reducer, and bidirectional lead screw to drive the positioning frame and limit frame to move relative to each other, thus positioning the ends of the tubular parts.
It enables rapid fixing and positioning of tubular parts of different diameters, facilitating subsequent welding processes.
Smart Images

Figure CN224575032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and more specifically to a machining positioning device. Background Technology
[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using mechanical equipment. It mainly includes two categories: cutting and pressure processing. For example, when welding two tubular parts, it is usually necessary to position and align the ends of the two tubular parts to facilitate subsequent welding. However, different types of tubular parts have different diameters. Existing machining positioning devices are difficult to adapt to tubular parts with different diameters (for example, the diameters of the two tubular parts in the first group are different from those in the second group, making it difficult for the machining positioning device to adapt to the two groups of tubular parts with different diameters). Improvements are needed. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a machining positioning device to solve the problems existing in the background art.
[0004] This utility model provides the following technical solution: a machining positioning device, including a positioning machining table. Two positioning frames are symmetrically connected to the top of the positioning machining table. A first limiting frame and a second limiting frame are provided above each of the two positioning frames. The bottom end of the first limiting frame is fixedly connected to the rear of the top of the positioning frame. The upper and lower sides of the outer wall of the second limiting frame are slidably disposed inside the first limiting frame. A support frame is fixedly installed in the middle of the rear of the top of the positioning machining table. A protective frame is fixedly installed on the back of the support frame. A first motor and a first worm gear reducer are fixedly installed on the inner wall of the protective frame. The output end of the No. 1 motor is fixedly installed at the input end of the No. 1 worm gear reducer via a coupling. A lead screw is fixedly installed at the output end of the No. 1 worm gear reducer via a coupling. The front end of the lead screw is rotatably mounted on the back of the support frame via a bearing. The top of the positioning processing table is provided with a mounting groove. A bidirectional lead screw is provided inside the mounting groove. Two positioning blocks are symmetrically installed on the outer wall of the bidirectional lead screw. The two positioning blocks cooperate with the bidirectional lead screw. The outer wall of the positioning blocks is slidably disposed inside the mounting groove. The tops of the two positioning blocks are fixedly installed in the middle of the bottom of the two positioning frames.
[0005] Furthermore, the protective frame is provided with a push plate inside, the internal thread of the push plate is installed on the outer wall of the lead screw, and push rods are fixedly installed at the four corners of the front of the push plate, the number of push rods being four.
[0006] Furthermore, a fixing plate is provided at the front of the support frame, and the front ends of the four push rods penetrate the interior of the support frame and are fixedly installed around the back of the fixing plate.
[0007] Furthermore, two connecting plates are symmetrically arranged above the positioning processing table. The back of the second limiting frame is fixedly installed on the front of the connecting plate. Multiple limiting rods are fixedly sleeved inside the fixed plate. The interiors of the two connecting plates are symmetrically slidably sleeved on the outer walls of the multiple limiting rods.
[0008] Furthermore, a limiting block is slidably provided inside the positioning frame, and multiple guide rods are fixedly installed inside the positioning frame. The limiting block is slidably connected to the outer wall of the guide rods, and the bottom end of the second limiting frame is fixedly installed on the top of the limiting block.
[0009] Furthermore, a second motor and a second worm gear reducer are fixedly installed on the right side of the positioning machining table. The output end of the second motor is fixedly installed on the input end of the second worm gear reducer via a coupling. The output end of the second worm gear reducer extends into the interior of the mounting groove and is fixedly installed on the right end of the bidirectional lead screw via a coupling. The left end of the bidirectional lead screw is rotatably installed on the left side of the inner wall of the mounting groove via a bearing.
[0010] Furthermore, a tubular component is provided inside the space between the first limiting frame and the second limiting frame.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. This utility model, through the cooperation of a support frame, protective frame, No. 1 motor, No. 1 worm gear reducer, lead screw, push plate, push rod, fixing plate, limit rod, and connecting plate, facilitates the synchronous driving of two No. 2 limit frames to move horizontally within the two No. 1 limit frames. At the same time, the cooperation of the positioning frame, limit block, and guide rod facilitates the horizontal guidance of the No. 2 limit frames. Through the movement of the two No. 2 limit frames, the internal space between the No. 2 limit frames and the No. 1 limit frames can be adjusted, and tubular parts of different diameters can be clamped and fixed between the No. 1 and No. 2 limit frames, thereby facilitating the quick fixing and limiting of tubular parts and facilitating subsequent welding of tubular parts.
[0013] 2. This utility model, through the cooperation of mounting groove, No. 2 motor, No. 2 worm gear reducer, bidirectional lead screw and positioning block, facilitates the relative movement of two positioning frames, No. 1 limit frame and No. 2 limit frame, and can drive the ends of two tubular parts to dock together and position the ends of the two tubular parts, which is convenient for subsequent welding of the tubular parts. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.
[0016] Figure 3 This is a schematic diagram of the positioning frame, limiting block, guide rod, first limiting frame and second limiting frame of this utility model.
[0017] Figure 4 This is a cross-sectional view of the support frame and protective frame structure of this utility model.
[0018] Figure 5 This is a cross-sectional view of the positioning and processing table structure of this utility model.
[0019] The attached diagram is labeled as follows: 1. Positioning processing table; 2. Positioning frame; 21. Limiting block; 22. Guide rod; 3. First limiting frame; 4. Second limiting frame; 5. Support frame; 51. Protective frame; 52. First motor; 53. First worm gear reducer; 54. Lead screw; 55. Push plate; 56. Push rod; 57. Fixing plate; 58. Limiting rod; 59. Connecting plate; 6. Mounting slot; 61. Second motor; 62. Second worm gear reducer; 63. Bidirectional lead screw; 64. Positioning block; 7. Tubular part. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The machining positioning device involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1:
[0022] like Figure 1-5As shown, a machining positioning device includes a positioning machining table 1. Two positioning frames 2 are symmetrically overlapped on the top of the positioning machining table 1. A first limiting frame 3 and a second limiting frame 4 are provided above each positioning frame 2. The bottom end of the first limiting frame 3 is fixedly connected to the rear of the top of the positioning frame 2. The upper and lower sides of the outer wall of the second limiting frame 4 are slidably disposed inside the first limiting frame 3. A tubular part 7 is provided inside between the first limiting frame 3 and the second limiting frame 4. A limiting block 21 is slidably disposed inside the positioning frame 2. Multiple guide rods 22 are fixedly installed inside the positioning frame 2. The inner wall of the limiting block 21 is slidably connected to the outer wall of the guide rods 22. The bottom end of the second limiting frame 4 is fixedly installed on the top of the limiting block 21. A support frame 5 is fixedly installed in the middle of the rear of the top of the positioning machining table 1. A protective frame 51 is fixedly installed on the back of the support frame 5. A first motor 52 and a first worm gear reducer are fixedly installed on the inner wall of the protective frame 51. 53. The output end of motor 52 is fixedly installed at the input end of worm gear reducer 53 via a coupling. The output end of worm gear reducer 53 is fixedly installed with lead screw 54 via a coupling. The front end of lead screw 54 is rotatably installed on the back of support frame 5 via bearing. Push plate 55 is provided inside protective frame 51. The internal thread of push plate 55 is installed on the outer wall of lead screw 54. Push rods 56 are fixedly installed at the four corners of the front of push plate 55. There are four push rods 56. Fixed plate 57 is provided in front of support frame 5. The front ends of the four push rods 56 penetrate the interior of support frame 5 and are fixedly installed around the back of fixed plate 57. Two connecting plates 59 are symmetrically provided above positioning processing table 1. The back of second limit frame 4 is fixedly installed on the front of connecting plate 59. Multiple limit rods 58 are fixedly sleeved inside fixed plate 57. The interiors of the two connecting plates 59 are symmetrically slidably sleeved on the outer walls of multiple limit rods 58.
[0023] In this embodiment, the protective frame 51 facilitates the protection of the No. 1 motor 52, the No. 1 worm gear reducer 53, the lead screw 54, and the push plate 55. The outer wall of the protective frame 51 has a cable pass-through port and a heat dissipation port to facilitate heat dissipation for the No. 1 motor 52 and to facilitate connection between the No. 1 motor 52 and the cable. The cooperation of the No. 1 motor 52, the No. 1 worm gear reducer 53, the lead screw 54, and the push plate 55 facilitates the movement of the push rod 56, the fixed plate 57, the limiting rod 58, and the two connecting plates 59. The two connecting plates 59 can synchronously drive the upper part of the outer wall of the two No. 2 limiting frames 4. The lower two sides move inside the first limiting frame 3, while adjusting the internal space between the second limiting frame 4 and the first limiting frame 3 to facilitate the limiting and fixing of the tubular parts 7. In this application, when limiting and fixing the two tubular parts 7, it is necessary to keep the diameter of the two tubular parts 7 of the same specification. After the two tubular parts 7 of the first group are welded, the two tubular parts 7 of the second group can be positioned. During this process, the diameter of the tubular parts 7 of the first group and the second group can be different, but the diameter of the two tubular parts 7 of the first group or the second group needs to be kept to the same specification.
[0024] Example 2:
[0025] like Figure 1-5 As shown, the top of the positioning processing table 1 has a mounting groove 6. Inside the mounting groove 6 is a bidirectional lead screw 63. Two positioning blocks 64 are symmetrically mounted on the outer wall of the bidirectional lead screw 63. The two positioning blocks 64 and the bidirectional lead screw 63 cooperate to form a lead screw-slider drive mechanism. The outer walls of the positioning blocks 64 are slidably disposed inside the mounting groove 6. The tops of the two positioning blocks 64 are fixedly mounted in the middle of the bottom of the two positioning frames 2. A second motor 61 and a second worm gear reducer 62 are fixedly mounted on the right side of the positioning processing table 1. The output end of the second motor 61 is fixedly mounted on the input end of the second worm gear reducer 62 via a coupling. The output end of the second worm gear reducer 62 extends into the mounting groove 6 and is fixedly mounted on the right end of the bidirectional lead screw 63 via a coupling. The left end of the bidirectional lead screw 63 is rotatably mounted on the left side of the inner wall of the mounting groove 6 via a bearing. A dust cover is fitted onto the surface of the bidirectional lead screw 63.
[0026] In this embodiment, the cooperation of the second motor 61 and the second worm gear reducer 62 facilitates the rotation of the bidirectional lead screw 63. The bidirectional lead screw 63 can also drive the two positioning blocks 64 to slide relative to each other inside the mounting groove 6. The two positioning blocks 64 drive the two tubular parts 7 to move through the two positioning frames 2, the first limit frame 3 and the second limit frame 4, so that the ends of the two tubular parts 7 are connected together, which facilitates the positioning of the ends of the two tubular parts 7 and facilitates the subsequent welding of the tubular parts 7. In this application, an external controller can be used to control the electrical equipment in this application, or the controller can be installed in a position on the positioning processing table 1 that does not affect normal use.
[0027] In summary, as Figure 1-5 As shown, in use, this machining positioning device first places two tubular parts 7 between two first-level limit frames 3 and two second-level limit frames 4. At this time, the first motor 52 and the first worm gear reducer 53 drive the lead screw 54 to rotate. The first lead screw 54 drives the push plate 55 and the push rod 56 to move. The push rod 56 simultaneously drives the two second-level limit frames 4 to move through the fixed plate 57, the limit rod 58 and the two connecting plates 59. The bottom ends of the two second-level limit frames 4 drive the limit block 21 to slide on the outer wall of the guide rod 22, thereby adjusting the internal space between the second-level limit frame 4 and the first-level limit frame 3, and clamping and fixing the two tubular parts 7 to the two first-level limit frames. Between the first limit frame 3 and the two second limit frames 4, the two tubular parts 7 are limited and fixed. Then, the double-acting screw 63 is driven to rotate by the cooperation of the second motor 61 and the second worm gear reducer 62. The double-acting screw 63 drives the two positioning blocks 64 to move symmetrically. The positioning blocks 64 drive the first limit frame 3 and the second limit frame 4 to move through the positioning frame 2. The back of the second limit frame 4 drives the connecting plate 59 to slide on the outer wall of the multiple limit rods 58. At the same time, the tubular parts 7 are moved between the two first limit frames 3 and the second limit frames 4, so that the ends of the two tubular parts 7 are connected together, which facilitates the positioning of the ends of the two tubular parts 7 and facilitates the subsequent welding of the tubular parts 7.
[0028] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A machining positioning device comprising a positioning table (1), characterized in that, The top of the positioning processing table (1) is symmetrically connected to two positioning frames (2). Above each of the two positioning frames (2) is a first limiting frame (3) and a second limiting frame (4). The bottom end of the first limiting frame (3) is fixedly connected to the rear of the top of the positioning frame (2). The upper and lower sides of the outer wall of the second limiting frame (4) are slidably set inside the first limiting frame (3). A support frame (5) is fixedly installed in the middle of the rear of the top of the positioning processing table (1). A protective frame (51) is fixedly installed on the back of the support frame (5). A first motor (52) and a first worm gear reducer (53) are fixedly installed on the inner wall of the protective frame (51). The output end of the first motor (52) is fixedly installed through a coupling. The input end of the No. 1 worm gear reducer (53) and the output end of the No. 1 worm gear reducer (53) are fixedly installed with a lead screw (54) through a coupling. The front end of the lead screw (54) is rotatably installed on the back of the support frame (5) through a bearing. The top of the positioning processing table (1) is provided with an installation groove (6). The installation groove (6) is provided with a bidirectional lead screw (63). Two positioning blocks (64) are symmetrically installed on the outer wall of the bidirectional lead screw (63). The two positioning blocks (64) cooperate with the bidirectional lead screw (63). The outer wall of the positioning blocks (64) is slidably set inside the installation groove (6). The top of the two positioning blocks (64) is fixedly installed in the middle of the bottom of the two positioning frames (2).
2. A machine tool positioning device according to claim 1, characterised in that: The protective frame (51) is provided with a push plate (55) inside. The internal thread of the push plate (55) is installed on the outer wall of the lead screw (54). Push rods (56) are fixedly installed at the four corners of the front of the push plate (55). There are four push rods (56).
3. A machine tool positioning device according to claim 2, wherein: The support frame (5) has a fixing plate (57) in front of it, and the front ends of the four push rods (56) pass through the interior of the support frame (5) and are fixedly installed around the back of the fixing plate (57).
4. A machine tool positioning device according to claim 3, wherein: Two connecting plates (59) are symmetrically arranged above the positioning processing table (1). The back of the second limiting frame (4) is fixedly installed on the front of the connecting plate (59). Multiple limiting rods (58) are fixedly sleeved inside the fixing plate (57). The two connecting plates (59) are symmetrically slidably sleeved on the outer wall of the multiple limiting rods (58).
5. A machine tool positioning apparatus according to claim 1, wherein: The positioning frame (2) is provided with a limiting block (21) inside. Multiple guide rods (22) are fixedly installed inside the positioning frame (2). The limiting block (21) is slidably connected to the outer wall of the guide rod (22). The bottom end of the second limiting frame (4) is fixedly installed on the top of the limiting block (21).
6. A machine tool positioning apparatus according to claim 1, wherein: A second motor (61) and a second worm gear reducer (62) are fixedly installed on the right side of the positioning processing table (1). The output end of the second motor (61) is fixedly installed on the input end of the second worm gear reducer (62) through a coupling. The output end of the second worm gear reducer (62) extends into the interior of the mounting groove (6) and is fixedly installed on the right end of the double-acting screw (63) through a coupling. The left end of the double-acting screw (63) is rotatably installed on the left side of the inner wall of the mounting groove (6) through a bearing.
7. A machine tool positioning apparatus according to claim 1, wherein: A tubular part (7) is provided inside the space between the first limiting frame (3) and the second limiting frame (4).