A chain fixture for machining shaft sleeves on a boring machine
By using chain fixtures in boring machine processing, the problem of insufficient contact area of existing clamp fixtures causing rotation or displacement of the shaft sleeve, achieving a larger contact area and higher machining accuracy and efficiency.
Patent Information
- Application Number
- CN202421204666.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Due to the different outer diameters of the shaft sleeves, the contact area between the arc-shaped clamping plate and the outer diameter of the shaft sleeve is limited, which causes the shaft sleeve to rotate or displace during the processing process, affecting the processing accuracy and efficiency.
A chain clamp is used to fix one end of the chain on the boring machine through a jaw, and a locking member and a mounting frame are used to fix the other end of the chain to form a chain structure across the sleeve, increasing the contact area between the clamp and the sleeve, and controlling the lowering of the locking member through a fastening bolt to tighten the chain to firmly clamp the sleeve.
It effectively increases the contact area between the clamp and the shaft sleeve, prevents the shaft sleeve from rotating or displaced during the processing, improves the machining accuracy and efficiency, and adapts to the sleeves of different sizes.
Smart Images
Figure CN222711524U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a chain clamp for machining shaft sleeves on a boring machine. Background Art
[0002] When machining sleeves on boring machines, the role and importance of clamping fixtures are self-evident. The clamping fixture is a key tool to ensure that the sleeve maintains a precise position and a stable posture during the machining process. It can effectively prevent the sleeve from being displaced or deformed under the influence of external factors such as cutting force and vibration, thereby ensuring machining accuracy and quality. Without a suitable clamping fixture, the sleeve may shake or deviate from the predetermined position during the machining process, resulting in the dimensional accuracy and surface quality of the machined parts failing to meet the requirements, and may even cause machine tool failure or safety accidents. Therefore, a clamping fixture that can firmly clamp the sleeve is of great significance for improving machining efficiency, ensuring machining quality, and ensuring production safety.
[0003] The existing clamping fixture is composed of two arc-shaped clamping plates, and a hydraulic drive system is arranged between the two arc-shaped clamping plates. The hydraulic drive system can accurately drive the two arc-shaped clamping plates to move closer to each other, so as to stably fasten the sleeve on the boring machine.
[0004] In practical applications, due to the different outer diameters of the sleeves, the curvature of the sleeve outer diameter often does not match the curvature of the arc clamping plate, resulting in point contact between the arc clamping plate and the sleeve outer diameter, with a limited contact area. This contact mode can easily cause the sleeve to rotate or shift during processing, thus affecting processing accuracy and efficiency. Summary of the invention
[0005] Aiming at the problem that the contact area between the existing clamping fixture and the shaft sleeve is limited and the shaft sleeve is prone to rotation or displacement, the utility model provides a chain clamp for machining the shaft sleeve on a boring machine, which can increase the contact area and prevent the shaft sleeve from rotating or displacing.
[0006] In order to solve the above problems, the technical solution adopted by the utility model is a chain clamp for machining shaft sleeves on a boring machine, comprising a claw, one end of which can be fixed on the boring machine, and the other end of which is fixedly connected to one end of a chain; and also comprising a mounting frame, one end of which can be fixed on the boring machine, and the other end of which is provided with a locking piece, and a side of the locking piece close to the chain is provided with sharp teeth, and the sharp teeth can be inserted into and lock the other end of the chain. The chain is straddled above the shaft sleeve so that its two ends are respectively located on both sides of the shaft sleeve. One end of the chain is firmly connected to the boring machine through the claw, and the other end of the chain is tightly fixed to the boring machine through the locking piece and the mounting frame, thereby ensuring that the shaft sleeve is stably locked. Therefore, the clamp fixes the shaft sleeve through the chain, which not only increases the contact area between the clamp and the shaft sleeve, but also can adapt to shaft sleeves of different sizes, effectively preventing the shaft sleeve from rotating or shifting during operation.
[0007] Preferably, a T-block 1 is provided at one end of the claw away from the chain, and the size of the T-block 1 matches the T-slot of the boring machine. By smoothly sliding the T-block 1 into the T-slot of the boring machine, the claw can be effectively ensured to be stably fixed on the boring machine.
[0008] Preferably, the mounting frame includes a mounting plate, two side plates are fixed on the mounting plate, both side plates are provided with through holes, and the center lines of the two through holes coincide, and the side plates are also provided with a connecting shaft that passes through the two through holes, and the locking piece is sleeved on the connecting shaft, the locking piece can rotate around the connecting shaft, and the locking piece is located between the two side plates. When the claw is fixed, it only needs to rotate the locking piece, and the sharp teeth on the locking piece will be smoothly inserted into the chain. The claw and the locking piece cooperate with each other, the chain is tightened, and then the sleeve is firmly clamped to ensure that it is stable and immovable.
[0009] Preferably, two locking members are provided between the two side plates. Two locking members provide double protection to ensure that the shaft sleeve is firmly clamped.
[0010] Preferably, the locking member has at least three sharp teeth, which effectively ensure that the locking member can firmly fix the chain.
[0011] Preferably, a fastening bolt is fixed on the upper surface of the mounting plate, and the bolt rod of the fastening bolt passes through the mounting plate and is fixed with a T-block 2, and the size of the T-block 2 matches the T-slot of the boring machine. By smoothly sliding the T-block 2 into the T-slot of the boring machine, the mounting plate can be effectively and stably fixed on the boring machine.
[0012] Preferably, a spring is sleeved on the bolt rod of the fastening bolt, the upper end of the spring abuts against the lower surface of the mounting plate, and the lower end of the spring can abut against the upper surface of the bed of the boring machine. When the sharp teeth of the locking piece are successfully inserted into the chain, the mounting plate will be lowered by rotating the fastening bolt, and the spring will be compressed appropriately. In this process, the locking piece will also be lowered synchronously, thereby tightening the chain to an appropriate degree, ensuring that the chain can stably and effectively clamp the sleeve.
[0013] Preferably, a support frame is further included, the top of the support frame is set in a V-shape with high sides and low middle, and a T-block three is fixed to the bottom of the support frame, and the size of the T-block three matches the T-slot of the boring machine. By smoothly sliding the T-block three into the T-slot of the boring machine, it can be effectively ensured that the support frame is stably fixed on the boring machine. At the same time, the V-shape on the top of the support frame can not only provide solid support for the shaft sleeve, but also effectively limit its movement, ensuring stability and accuracy during processing.
[0014] It can be seen from the above technical solutions that the advantage of the utility model is that the chain is placed across the top of the sleeve so that its two ends are located on both sides of the sleeve. One end of the chain is firmly connected to the boring machine through a claw, while the other end of the chain is tightly fixed to the boring machine through a locking piece and a mounting frame. In addition, by controlling the locking piece to descend by tightening the bolt, and then tightening the chain, it can be ensured that the sleeve is stably locked. In summary, the clamp fixes the sleeve through the chain, which not only increases the contact area between the clamp and the sleeve, but also can adapt to sleeves of different sizes, effectively preventing the sleeve from rotating or shifting during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 The structure of the specific implementation method of the utility model is shown in FIG. Figure 1 .
[0017] Figure 2 The structure of the specific implementation method of the utility model is shown in FIG. Figure 2 .
[0018] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.
[0019] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.
[0020] Description of main reference numerals
[0021] In the figure: 1. bushing, 2. boring machine, 21. T-slot, 3. support frame, 4. chain, 5. mounting frame, 51. mounting plate, 52. side plate, 53. connecting shaft, 54. fastening bolt, 541. bolt rod, 55. spring, 6. locking piece, 7. claw. DETAILED DESCRIPTION
[0022] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0023] A chain clamp for machining a shaft sleeve on a boring machine comprises a chain 4, one end of which is provided with a clamping claw 7. Figure 2 As shown, the claw 7 can be fixed on the boring machine 2 on one side of the sleeve 1. The other end of the chain 4 is provided with a mounting frame 5, as shown in FIG. Figure 1 As shown, the mounting frame 5 can be fixed on the boring machine 2 on the other side of the sleeve 1. The claw 7 and the mounting frame 5 cooperate with each other to tighten the chain 4 so that the chain 4 fixes the sleeve 1 on the boring machine 2.
[0024] like Figure 4 As shown, in this specific embodiment, the claw 7 specifically adopts the following structure: the claw 7 includes a connecting block, one end of the connecting block is provided with a groove, a hinge shaft is welded in the groove, and the hinge shaft passes through one end of the chain 4, that is, one end of the chain 4 is rotatably connected to the hinge shaft. A T-block 1 is provided at the other end of the connecting block, and the T-block 1 includes a wider horizontal rod end and a narrower vertical rod end, and the other end of the connecting block is fixedly connected to the vertical rod end of the T-block 1 by welding. In addition, the size of the T-block 1 matches the T-slot 21 of the boring machine 2, that is, the T-block 1 can slide in the T-slot 21.
[0025] like Figure 3 As shown, in this specific embodiment, the mounting frame 5 specifically adopts the following structure: the mounting frame 5 includes a mounting plate 51, and two side plates 52 are welded to the upper surface of the mounting plate 51, and the two side plates 52 are parallel to each other. Through holes are provided on the two side plates 52, and the center lines of the two through holes coincide, and the direction of the center lines of the through holes is parallel to the length direction of the T-slot 21 of the boring machine 2. A connecting shaft 53 passing through the two through holes is also provided on the side plate 52. In this embodiment, the connecting shaft 53 is a bolt, and the screw of the bolt passes through the through holes on the two side plates 52 in turn and is locked and fixed by a nut.
[0026] A locking member 6 is also provided between the two side plates 52. A connecting hole is provided on the locking member 6. The size of the connecting hole is the same as that of the through hole on the side plate 52, and the center line of the connecting hole coincides with the center line of the through hole. The locking member 6 is sleeved on the connecting shaft 53 through the connecting hole, that is, the locking member 6 can rotate around the axis of the connecting shaft 53. The locking member 6 is provided with sharp teeth on the side close to the chain 4, and the sharp teeth can be inserted into the chain 4 and fix the chain 4. There are at least three sharp teeth on the locking member 6. In this embodiment, there are three sharp teeth on the locking member 6. In addition, there are two locking members 6 between the two side plates 52, and both of them can rotate around the axis of the connecting shaft 53.
[0027] The mounting plate 51 is provided with a fastening hole, in which a fastening bolt 54 is installed. The bolt head of the fastening bolt 54 is in close contact with the upper surface of the mounting plate 51, and the bolt rod 541 of the fastening bolt 54 penetrates the mounting plate 51. A spring 55 is sleeved on the bolt rod 541 of the fastening bolt 54, the upper end of the spring 55 abuts against the lower surface of the mounting plate 51, and the lower end of the spring 55 can abut against the upper surface of the bed of the boring machine 2. A T-block 2 is provided below the fastening bolt 54, and the T-block 2 includes a wider horizontal bar end and a narrower vertical bar end. A screw hole is provided on the vertical bar end of the T-block 2, and the size of the screw hole is adapted to the bolt rod 541 of the fastening bolt 54, and the bolt rod 541 of the fastening bolt 54 is installed in the screw hole of the vertical bar end of the T-block 2. In addition, the size of the T-block 2 matches the T-slot 21 of the boring machine 2, that is, the T-block 2 can slide in the T-slot 21. In this embodiment, two fastening holes are provided, and correspondingly, two fastening bolts 54, two springs 55 and two T-blocks are provided.
[0028] In this specific embodiment, a support frame 3 is also included. The support frame 3 specifically adopts the following structure: the top of the support frame 3 is set in a V-shape with high sides and low middle, and a T-block 3 is set at the bottom of the support frame 3. The T-block 3 includes a wider horizontal rod end and a narrower vertical rod end, and the bottom of the support frame 3 is fixedly connected to the vertical rod end of the T-block 3 by welding. In addition, the size of the T-block 3 matches the T-slot 21 of the boring machine 2, that is, the T-block 3 can slide in the T-slot 21.
[0029] The specific use process of the utility model is as follows: first, slide the T-block 3 into the T-slot 21 of the boring machine 2. The T-slot 21 of the boring machine 2 is an inverted T-shape, which ensures that the support frame 3 can fit tightly against the upper surface of the bed of the boring machine 2. In this process, two T-blocks 3 are installed at the same time, and they slide into the same T-slot 21 together. Next, place the sleeve 1 securely on the top of the support frame 3. Then, take out the four claws 7 and the four chains 4 connected to them, and slide the T-blocks 1 on these claws 7 into the T-slot 21 on one side of the sleeve 1 of the boring machine 2 in turn. Then, the four chains 4 are stretched across the top of the sleeve 1 and extended to the other side of the sleeve 1.
[0030] Next, take out the two mounting frames 5, and slide the T-blocks 2 on the mounting frames 5 into the other T-slot 21 of the boring machine 2, which is located on the other side of the sleeve 1. In this process, special attention should be paid to ensure that the upper end of the spring 55 abuts against the lower surface of the mounting plate 51, and the lower end of the spring 55 also abuts against the upper surface of the bed of the boring machine 2.
[0031] Finally, the locking member 6 is rotated so that the sharp teeth on the locking member 6 are accurately inserted into the chain 4 and fixed. Subsequently, the height of the locking member 6 is lowered by rotating the fastening bolt 54, thereby tightening the chain 4 and ensuring that the shaft sleeve 1 is firmly clamped.
[0032] It can be seen from the above embodiments that the beneficial effect of the utility model is that the chain is placed across the top of the sleeve so that its two ends are located on both sides of the sleeve. One end of the chain is firmly connected to the boring machine through a claw, and the other end of the chain is tightly fixed to the boring machine through a locking member and a mounting frame. In addition, by controlling the locking member to descend by tightening the bolt, and then tightening the chain, it can be ensured that the sleeve is stably locked. In summary, the clamp fixes the sleeve through the chain, which not only increases the contact area between the clamp and the sleeve, but also can adapt to sleeves of different sizes, effectively preventing the sleeve from rotating or shifting during operation.
[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A chain clamp for machining a shaft sleeve on a boring machine, characterized in that: The invention comprises a claw (7), one end of which can be fixed on a boring machine (2), and the other end of which is fixedly connected to one end of a chain (4); and a mounting frame (5), one end of which can be fixed on the boring machine (2), and the other end of which is provided with a locking member (6), and a side of the locking member (6) close to the chain (4) is provided with sharp teeth, and the sharp teeth can be inserted into and lock the other end of the chain (4).
2. The chain clamp for machining a shaft sleeve on a boring machine according to claim 1, characterized in that: A T-shaped block 1 is arranged at one end of the clamping claw (7) away from the chain (4), and the size of the T-shaped block 1 matches the T-shaped slot (21) of the boring machine (2).
3. The chain clamp for machining a shaft sleeve on a boring machine according to claim 1, characterized in that: The mounting frame (5) comprises a mounting plate (51), two side plates (52) are fixed on the mounting plate (51), the two side plates (52) are both provided with through holes, and the center lines of the two through holes coincide with each other, the side plates (52) are also provided with a connecting shaft (53) penetrating the two through holes, the locking member (6) is sleeved on the connecting shaft (53), the locking member (6) can rotate around the connecting shaft (53), and the locking member (6) is located between the two side plates (52).
4. The chain clamp for machining a shaft sleeve on a boring machine according to claim 3, characterized in that: Two locking members (6) are provided between the two side plates (52).
5. The chain clamp for machining a shaft sleeve on a boring machine according to claim 4, characterized in that: There are at least three sharp teeth on the locking piece (6).
6. The chain clamp for machining a shaft sleeve on a boring machine according to claim 3, characterized in that: A fastening bolt (54) is fixed on the upper surface of the mounting plate (51), and a bolt rod (541) of the fastening bolt (54) penetrates the mounting plate (51) and is fixed with a T-shaped block 2, the size of which matches the T-shaped slot (21) of the boring machine (2).
7. The chain clamp for machining a shaft sleeve on a boring machine according to claim 6, characterized in that: A spring (55) is sleeved on the bolt rod (541) of the fastening bolt (54), the upper end of the spring (55) abuts against the lower surface of the mounting plate (51), and the lower end of the spring (55) can abut against the upper surface of the bed of the boring machine (2).
8. The chain clamp for machining a shaft sleeve on a boring machine according to claim 1, characterized in that: It also includes a support frame (3), the top of the support frame (3) is arranged in a V-shape with high sides and low middle, and a T-block three is fixed to the bottom of the support frame (3), the size of the T-block three matches the T-slot (21) of the boring machine (2).