Tool clamp for machining first section of rail chain section

By designing a machining fixture for the first section of the rail link, the precise positioning of the pin hole positioning block and the sleeve hole positioning block, and combined with the locking and fixing of the clamping pull rod, the problem of insufficient machining accuracy of the first section of the rail link is solved, and efficient and accurate machining effects are achieved.

CN222755242UActive Publication Date: 2025-04-15HUBEI SANSHENG CONSTR MASCH CO LTD
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Patent Information

Application Number
CN202421246588.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-04-15
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

The prior art is difficult to achieve separate precise processing of the first section of the rail link, resulting in insufficient processing accuracy and affecting the installation and use effect.

Method used

Design a first-section machining tool fixture for rail link links, including bottom plate, side plate, sleeve hole positioning block, pin hole positioning block and clamping pull rod. It is accurately positioned through pin hole positioning block and sleeve hole positioning block, and locked and fixed by clamping pull rod to ensure the stability and accuracy of rail links during processing.

Benefits of technology

It realizes high-precision separate processing of the first section of the rail link, improves processing efficiency and accuracy, avoids deviation problems during the processing process, and meets the market's demand for fine cutting rail links.

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Abstract

The utility model provides a tool clamp for machining a first section of a rail chain section. The tool clamp comprises a bottom plate, a side plate, a sleeve hole positioning block, a pin hole positioning block and a clamping pull rod. The side plate is vertically mounted at the center line of the top of the bottom plate; the trepanning positioning block and the pin hole positioning block are vertically mounted on the side plate at an interval left and right, and are fixedly connected with the side plate in a cross shape respectively; the two clamping pull rods are installed at the two ends of the pin hole positioning block in a threaded mode respectively so as to press the rail chain links. The rail chain link to be machined is accurately positioned through the pin hole positioning block and the sleeve hole positioning block, the accurately-positioned rail chain link is locked and fixed through the clamping pull rod on the outer side, the positioning reference is more reasonable, the positioning accuracy is higher, operation is more convenient and simpler, and the machining efficiency is higher.
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Description

Technical Field

[0001] The utility model relates to a rail chain segment processing auxiliary tool, in particular to a rail chain segment first segment processing tooling fixture. Background Art

[0002] Track links generally refer to the connecting parts of tracks used in construction machinery such as excavators and bulldozers, and military machinery such as tanks. The current market competition is fierce and the cost pressure is high, so it is necessary to use precision-cut track links, and the two sides and nut grooves are not processed to reduce costs. The first section of the track chain is assembled in the main engine factory, and the coaxiality of the left and right first section holes is required to be high. If there is a deviation, it will cause difficulties in installation and press-fitting. Therefore, the first sections need to be processed separately in pairs to ensure that their processing accuracy meets customer use and cope with the market environment. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the defects of the prior art, a tooling fixture for processing the first section of a rail chain section is provided, which can realize the separate processing of the rail chain section and ensure the processing accuracy.

[0004] The utility model adopts the following technical solutions to solve the above technical problems:

[0005] A tooling fixture for processing the first section of a rail chain link, comprising a base plate, a side plate, a sleeve hole positioning block, a pin hole positioning block and a clamping rod, wherein: the side plate is vertically installed at the midline position of the top of the base plate; the sleeve hole positioning block and the pin hole positioning block are vertically installed on the side plate at left and right intervals, and are respectively fixedly connected to the side plate in a cross shape; there are two clamping rods, which are respectively threadedly installed at both ends of the pin hole positioning block to clamp the rail chain link.

[0006] Preferably, the two ends of the side plate are fixedly connected to the bottom plate by a plurality of fastening bolts, and / or the connection between the side plate and the bottom plate is welded.

[0007] Preferably, the side plate is provided with a first positioning hole and a second positioning hole spaced apart from each other on the left and right sides, wherein:

[0008] The sleeve hole positioning block is fixedly penetrated in the first positioning hole, and the pin hole positioning block is fixedly penetrated in the second positioning hole.

[0009] Preferably, the side plates are respectively clamped and fixed with the sleeve hole positioning block and the pin hole positioning block by means of compression bolts arranged at intervals on the left and right sides of the top of the side plates;

[0010] And / or the side plate is connected to the sleeve hole positioning block and the pin hole positioning block by welding at the connection between the first positioning hole and the second positioning hole.

[0011] Preferably, the sleeve hole positioning block and the pin hole positioning block are arranged front-to-back symmetrically relative to the side plate.

[0012] Preferably, the center point of the sleeve hole positioning block and the center point of the pin hole positioning block are located on the same horizontal line.

[0013] Preferably, the pin hole positioning block comprises a pin hole positioning block body and a positioning end shaft which are integrally connected, wherein:

[0014] There are two positioning end shafts, which are coaxially arranged at two ends of the pin hole positioning block body; and a locking screw hole is opened at the axial center position of each positioning end shaft.

[0015] Preferably, the cross-sections of the positioning end shafts at the ends of the sleeve hole positioning block and the pin hole positioning block are both cylindrical, and their outer circumferences are clearance-fitted with the rail chain links sleeved thereon.

[0016] Preferably, the rail chain link first section processing fixture further comprises pressure plates respectively mounted on the clamping rods, and the pressure plates can abut against the outer side walls of the rail chain links to clamp the rail chain links on the pin hole positioning blocks.

[0017] Preferably, the bottom plate, the side plates, the sleeve hole positioning blocks, the pin hole positioning blocks and the clamping rod are made of stainless steel or aluminum alloy steel plates.

[0018] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0019] The utility model provides a first-section processing tooling fixture for rail chain links, which is assembled from a bottom plate, a side plate, a sleeve hole positioning block, a pin hole positioning block and a clamping pull rod. The rail chain link to be processed is accurately positioned by the pin hole positioning block and the sleeve hole positioning block, and the outer clamping pull rod is used to lock and fix the accurately positioned rail chain link to avoid deviation of the rail chain link during processing. Compared with traditional tooling, the positioning reference is more reasonable and the positioning accuracy is higher. The clamping pull rod is used for clamping, which is more convenient and simple to operate and has higher processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the top view of the structure of a tooling fixture for processing the first section of a rail chain section of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of a tooling fixture for processing the first section of a rail chain section of the utility model;

[0022] Figure 3 It is a side view structural schematic diagram of a tooling fixture for processing the first section of a rail chain section of the utility model;

[0023] Figure 4 It is a schematic diagram of the top view of the structure of a first-section processing fixture of a rail chain link of the utility model used for clamping the rail chain link;

[0024] Figure 5 The utility model is a schematic diagram of the exploded structure of a rail chain link first section processing tooling fixture used for clamping rail chain links. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a tooling fixture for processing the first section of a rail chain link is provided, which mainly includes a bottom plate 10, a side plate 20, a sleeve hole positioning block 30, a pin hole positioning block 40 and a clamping pull rod 50. The sleeve hole positioning block 30 and the pin hole positioning block 40 are fixedly mounted on the side plate 20; there are two clamping pull rods 50, which are detachably connected to the pin hole positioning block 40. The bottom plate 10, the side plate 20, the sleeve hole positioning block 30, the pin hole positioning block 40 and the clamping pull rod 50 are made of stainless steel or aluminum alloy steel plates.

[0028] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the bottom plate 10 and the side plate 20 are both square plates with a certain thickness, which can provide a stable structural foundation for the fixture. The side plate 20 is arranged vertically and is vertically installed at the midline position of the top of the bottom plate 10 to divide the bottom plate 10 into two symmetrical parts.

[0029] The sleeve hole positioning block 30 and the pin hole positioning block 40 are vertically installed on the side plate 20 at intervals on the left and right, and are arranged parallel to each other. The sleeve hole positioning block 30 is vertically installed at the left end of the side plate 20 and is fixedly connected to the side plate 20 in a cross shape, and the pin hole positioning block 40 is vertically installed at the right end of the side plate 20 and is fixedly connected to the side plate 20 in a cross shape. The two ends of the sleeve hole positioning block 30 and the pin hole positioning block 40 constitute a support platform for positioning the rail chain link 70.

[0030] like Figure 4 and Figure 5As shown, in order to achieve the locking and fixing of the rail chain link 90 and prevent the rail chain link 70 from deflecting during the processing, a clamping rod 50 is used to lock and fix the rail chain link 90. ​​The clamping rod 50 is two and is threadedly mounted on both ends of the pin hole positioning block 40 to press the rail chain link 70.

[0031] The first section processing fixture of the rail chain link adopts the above scheme, and the rail chain link 70 to be processed is accurately positioned by the pin hole positioning block 30 and the sleeve hole positioning block 40, and the rail chain link 70 is locked and fixed by the outer clamping rod 50 to prevent the rail chain link 70 from being offset during the processing. Compared with the traditional fixture, the fixture has a more reasonable positioning reference, higher positioning accuracy, more convenient and simple operation, and higher processing efficiency.

[0032] In some of the embodiments, Figure 1 , Figure 2 and Figure 3 As shown, the bottom plate 10 and the side plate 20 can be connected and fixed in a variety of ways, such as fixing the two ends of the side plate 20 to the bottom plate 10 with a plurality of fastening bolts, and / or welding the connection between the side plate 20 and the bottom plate 10.

[0033] Specifically, in order to achieve a stable connection between the side panel 20 and the bottom plate 10, the two ends of the side panel 20 are fixedly connected to the bottom plate 10 with a plurality of bolts, or as needed, the connection between the lower end of the side baffle 20 and the bottom plate 10 is welded at the same time for further welding reinforcement.

[0034] In some of the embodiments, Figure 2 As shown, in order to realize the installation of the sleeve hole positioning block 30 and the pin hole positioning block 40, a first positioning hole 21 and a second positioning hole 22 are arranged in a left-right interval on the side plate 20. The sleeve hole positioning block 30 is fixedly penetrated in the first positioning hole 21, and the pin hole positioning block 40 is fixedly penetrated in the second positioning hole 22.

[0035] Similarly, the sleeve hole positioning block 30 and the pin hole positioning block 40 can be connected and fixed to the side baffle 20 in a variety of ways. For example, screw holes communicating with the first positioning hole 21 and the second positioning hole 22 are respectively provided at the left and right ends of the top of the side plate 20, and clamping bolts are installed in the screw holes. The sleeve hole positioning block 30 and the pin hole positioning block 40 are clamped and fixed by the clamping bolts, so as to facilitate the installation and removal of the sleeve hole positioning block 30 and the pin hole positioning block 40.

[0036] Of course, as an alternative to the above scheme, the sleeve hole positioning block 30 and the pin hole positioning block 40 can be directly welded and installed on the side plate 20 as needed, that is, welding is used at the connection between the side plate 20 and the sleeve hole positioning block 30 and the pin hole positioning block 40.

[0037] In some of the embodiments, Figure 1 and Figure 3 As shown, in order to improve the production efficiency of the jig, the front and rear ends of each set of the hole positioning block 30 and the pin hole positioning block 40 are arranged symmetrically with respect to the side plate 20, and the center point of the hole positioning block 30 and the center point of the pin hole positioning block 40 are located on the same horizontal line. That is, clamping stations are formed at the front and rear ends of the hole positioning block 30 and the pin hole positioning block 40, respectively, so that the two rail chain links 70 can be accurately positioned and clamped at the same time, and the two rail chain links 70 can be processed at the same time.

[0038] In some of the embodiments, Figure 1 , Figure 3 and Figure 5 As shown, the pin hole positioning block 40 is composed of an integrally processed pin hole positioning block body 41 and positioning end shafts 42 at both ends thereof. There are two positioning end shafts 42, which are coaxially arranged at both ends of the pin hole positioning block body 41. In order to facilitate the detachable connection with the clamping pull rod 50, a locking screw hole 43 is opened at the axial center position of each positioning end shaft 42, and the clamping pull rod 50 passes through the pin hole of the rail chain link 70 and is threadedly installed in the locking screw hole 43 to clamp the rail chain link 70.

[0039] It is worth noting that, in order to facilitate the disassembly of the rail link 70, the cross section of the sleeve hole positioning block 30 is designed to be cylindrical, and its outer circumference is loosely matched with the sleeve hole of the rail link 70 sleeved thereon. The cross section of the positioning end shaft 42 at the end of the pin hole positioning block 40 is designed to be cylindrical, and its outer circumference is loosely matched with the pin hole of the rail link 70 sleeved thereon.

[0040] In addition, if Figure 5 As shown, in order to ensure the stability of the clamping rod 50 pressing the rail chain link 70, the first section processing fixture of the rail chain link also includes a pressing plate 60 respectively installed on the clamping rod 50. The pressing plate 60 is sleeved on the clamping rod 50, and when the clamping rod 50 is tightened, the pressing plate 60 can be driven to abut against the outer side wall of the rail chain link 70, and the rail chain link 70 is clamped on the side end surface of the pin hole positioning block body 41 by the pressing plate 60.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, after the entire fixture is assembled using the bottom plate 10, the side plate 20, the sleeve hole positioning block 30, and the pin hole positioning block 40, the mounting surfaces of the sleeve hole positioning block 30, the pin hole positioning block 40 and the rail chain link 70 are finely processed to ensure that the pin hole and the sleeve hole are clearance-matched.

[0042] like Figure 4 and Figure 5 As shown, when the tooling is working, first install the rail chain link 70 through the sleeve hole positioning block 30 and the pin hole positioning block 40 as shown in the attached figure, then insert the pressure plate 60, use a wrench to tighten the clamping rod 50, clamp the rail chain link 70, and then start the machine tool for processing. After the processing is completed, use a wrench to loosen the clamping rod 50, remove the pressure plate 60, and finally take out the rail chain link 70, and a working process can be completed.

[0043] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0044] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0045] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tooling fixture for processing the first section of a rail chain link, characterized in that: It includes a bottom plate, a side plate, a sleeve hole positioning block, a pin hole positioning block and a clamping rod, wherein: the side plate is vertically installed at the midline position of the top of the bottom plate; the sleeve hole positioning block and the pin hole positioning block are vertically installed on the side plate at left and right intervals, and are respectively fixedly connected to the side plate in a cross shape; there are two clamping rods, which are respectively threadedly installed at both ends of the pin hole positioning block to clamp the rail chain links.

2. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The two ends of the side plate are fixedly connected to the bottom plate by a plurality of fastening bolts, and / or the connection between the side plate and the bottom plate is welded.

3. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The side plate is provided with a first positioning hole and a second positioning hole which are arranged at intervals on the left and right sides, wherein: The sleeve hole positioning block is fixedly penetrated in the first positioning hole, and the pin hole positioning block is fixedly penetrated in the second positioning hole.

4. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The side plates are respectively clamped and fixed with the sleeve hole positioning block and the pin hole positioning block by means of clamping bolts arranged at intervals on the top left and right of the side plates; And / or the side plate is connected to the sleeve hole positioning block and the pin hole positioning block by welding at the connection between the first positioning hole and the second positioning hole.

5. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The sleeve hole positioning block and the pin hole positioning block are arranged front-to-back symmetrically relative to the side plate.

6. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The center point of the sleeve hole positioning block and the center point of the pin hole positioning block are located on the same horizontal line.

7. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The pin hole positioning block comprises a pin hole positioning block body and a positioning end shaft which are integrally connected, wherein: There are two positioning end shafts, which are coaxially arranged at two ends of the pin hole positioning block body; and a locking screw hole is opened at the axial center position of each positioning end shaft.

8. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The cross sections of the positioning end shafts at the ends of the sleeve hole positioning block and the pin hole positioning block are both cylindrical, and the outer circumferences thereof are clearance-matched with the rail chain links sleeved thereon.

9. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: It also includes pressure plates respectively installed on the clamping pull rods, and the pressure plates can abut against the outer side walls of the rail chain links to clamp the rail chain links on the pin hole positioning blocks.

10. The first section processing fixture of the rail chain link according to claim 1 is characterized in that: The bottom plate, the side plate, the sleeve hole positioning block, the pin hole positioning block and the clamping pull rod are made of stainless steel or aluminum alloy steel plates.