Clamping tool for processing top surface of camshaft seat

Abstract

The utility model belongs to the technical field of camshaft seat processing, and provides a clamping tool for processing the top surface of a camshaft seat, which comprises a tool base provided with a plurality of supporting nails for supporting the camshaft seat and a first floating supporting cylinder. The tool base is further provided with a plurality of positioning rods, a hydraulic single-acting cylinder, a plurality of second floating supporting cylinders, a side pushing hydraulic cylinder and a pressing mechanism, the positioning rods and the hydraulic single-acting cylinder are used for positioning the cam shaft base, the second floating supporting cylinders and the side pushing hydraulic cylinder are used for clamping the side edges of the cam shaft base, and the pressing mechanism is used for pressing the cam shaft base. The hydraulic single-acting cylinders correspond to the positioning rods respectively, and the lateral pushing hydraulic cylinders correspond to the second floating supporting cylinders respectively. According to the clamping tool, accurate positioning and clamping of the camshaft seat can be achieved, clamping damage and deformation to the camshaft seat cannot be caused, in addition, the camshaft seat is easy and convenient to disassemble and assemble through the clamping tool, and therefore the machining efficiency and the machining quality of the camshaft seat are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft seat processing, in particular to a clamping tool for processing the top surface of a camshaft seat. Background Art

[0002] The camshaft seat is a component that fixes the camshaft. It is usually located in the engine cylinder and is an important component in the engine. It is directly related to the performance and operating efficiency of the engine. The design and manufacturing quality of the camshaft seat directly affects the normal operation of the camshaft, and then affects the opening and closing timing of the valve, which is a key factor in controlling the engine combustion process.

[0003] like Figure 1 As shown, a camshaft seat 1 structure is assembled in an engine cylinder body. During its production and processing, its top surface needs to be processed to meet the assembly and use requirements of the camshaft seat 1. Before the top surface of the camshaft seat 1 is processed, the camshaft seat 1 needs to be clamped and fixed to the corresponding clamping tooling to achieve the positioning, installation and fixation of the camshaft seat 1, ensuring the effective processing of the camshaft seat 1.

[0004] Since the camshaft seat wall is thin and easy to deform, it is difficult to clamp the camshaft seat. The current tooling fixtures used to clamp and fix the camshaft seat are not only cumbersome and inconvenient to clamp, but also difficult to achieve accurate positioning and firm clamping of the camshaft seat. If the clamping force is too large, it will cause clamping damage to the camshaft seat. If the clamping force is too small, the camshaft seat is prone to displacement, shaking, or even falling during the camshaft seat processing, which directly affects the processing quality and efficiency of the camshaft seat. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0006] Specifically, the technical problem to be solved by the utility model is: to provide a clamping tool for processing the top surface of the camshaft seat, so as to solve the problem that the current camshaft seat clamping structure is difficult to achieve accurate positioning and placement of the camshaft seat and firm clamping and fixation. If the clamping force is too large, it will cause clamping damage to the camshaft seat. If the clamping force is too small, the camshaft seat is prone to displacement, shaking, or even falling, which directly affects the technical problem of the camshaft seat processing quality and processing efficiency.

[0007] To achieve the above purpose, the technical solution of the utility model is:

[0008] A clamping fixture for machining the top surface of a camshaft seat, comprising a fixture base. A number of support pins and a first floating support cylinder for supporting the camshaft seat are provided on the fixture base. A number of positioning rods, a hydraulic single-acting cylinder for positioning the camshaft seat, a number of second floating support cylinders and side-pushing hydraulic cylinders for clamping the side of the camshaft seat, and a pressing mechanism for pressing the camshaft seat are also provided on the fixture base. The positioning rods are arranged at one end and one side edge of the fixture base respectively, the hydraulic single-acting cylinders correspond to the positioning rods respectively, and the side-pushing hydraulic cylinders correspond to the second floating support cylinders respectively.

[0009] As an improved technical solution, the support pins and the first floating support cylinder are both fixedly installed on the fixture base. The support pins are respectively close to both ends of the fixture base and are arranged in a triangular position, and the first floating support cylinder is arranged in sequence on the fixture base.

[0010] As an improved technical solution, side positioning blocks are fixedly installed at one end and one side edge of the fixture base, the positioning rods are respectively installed on the side positioning blocks, single-acting cylinder mounting blocks are fixedly installed at the other end and the other side edge of the fixture base, and the hydraulic single-acting cylinders are respectively installed on the single-acting cylinder mounting blocks.

[0011] As an improved technical solution, support cylinder mounting seats are fixedly installed on both side edges of the fixture base, and the second floating support cylinders are respectively installed on the tops of the support cylinder mounting seats;

[0012] A side-pushing cylinder mounting seat is also fixedly installed on the fixture base, and the side-pushing hydraulic cylinders are respectively fixedly installed on the side-pushing cylinder mounting seats.

[0013] As an improved technical solution, the support cylinder mounting seats are arranged in pairs on both side edges of the fixture base respectively, the side-pushing cylinder mounting seats are respectively located between two corresponding support cylinder mounting seats, and the side-pushing hydraulic cylinders are respectively fixedly installed on the side of the side-pushing cylinder mounting seats facing the support cylinder mounting seats.

[0014] As an improved technical solution, the pressing mechanism includes a lever oil cylinder, the lever oil cylinder is fixedly installed on the fixture base, and the lever oil cylinder corresponds to the support pins and the first floating support cylinder respectively.

[0015] As an improved technical solution, the clamping surface of the fixture base is an inclined chip guiding surface;

[0016] And / or, a sequence valve and an oil circuit board are also fixedly installed on the fixture base.

[0017] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] When positioning and clamping the camshaft seat with the clamping tooling for machining the top surface of the camshaft seat, first place the camshaft seat to be machined on the tooling base, use the support pins to support the camshaft seat, and ensure that the camshaft seat abuts against the positioning rod. Then, the hydraulic single-acting cylinder works, and the piston rod of the hydraulic single-acting cylinder abuts against the camshaft seat. The positioning of the camshaft seat is achieved through the hydraulic single-acting cylinder and the positioning rod, and the camshaft seat is limited between the hydraulic single-acting cylinder and the positioning rod to complete the positioning of the camshaft seat. After that, the first floating support cylinder and the second floating support cylinder act. The first floating support cylinder realizes the auxiliary support for the camshaft seat, and the second floating support cylinder contacts the side wall of the camshaft seat. Finally, the side push hydraulic cylinder and the pressing mechanism work. The side push hydraulic cylinder cooperates with the second floating support cylinder to clamp the side wall of the camshaft seat, and the pressing mechanism realizes the pressing of the camshaft seat, firmly fixing the camshaft seat on the tooling base. In this way, the positioning and clamping of the camshaft seat on this clamping tooling can be completed.

[0019] After the machining of the camshaft seat is completed, the side push hydraulic cylinder and the pressing mechanism work. The side push hydraulic cylinder resets to release the clamping of the side wall of the camshaft seat, and the pressing mechanism resets to release the pressing of the camshaft seat. After that, the second floating support cylinder, the first floating support cylinder, and the hydraulic single-acting cylinder reset, and the machined camshaft seat can be removed from this clamping tooling, and then the positioning and clamping of the next camshaft seat can be carried out. This process is repeated.

[0020] Through this clamping tooling for machining the top surface of the camshaft seat, not only can the accurate positioning and clamping of the camshaft seat be realized, but also the camshaft seat will not be damaged by clamping and will not be deformed. In addition, the disassembly and assembly operations of this clamping tooling for the camshaft seat are simple and convenient, the clamping is firm and reliable, ensuring that the camshaft seat will not shift or shake during the machining process, thus greatly improving the machining efficiency and machining quality of the camshaft seat. It has strong practicability and meets the usage requirements of the camshaft seat for production and machining on the assembly line. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0022] Figure 1 It is a schematic structural diagram of the camshaft seat of the present utility model;

[0023] Figure 2 It is a schematic structural diagram of the clamping tooling for machining the top surface of the camshaft seat of the present utility model;

[0024] Figure 3 Another three-dimensional structural schematic diagram of the clamping tool for machining the top surface of the camshaft seat of the present utility model;

[0025] Figure 4 A top view structural schematic diagram of the clamping tool for machining the top surface of the camshaft seat of the present utility model;

[0026] Figure 5 A structural schematic diagram of the positioning and placing state of the camshaft seat of the present utility model on the clamping tool for machining the top surface of the camshaft seat;

[0027] Figure 6 Another three-dimensional structural schematic diagram of the positioning and placing state of the camshaft seat of the present utility model on the clamping tool for machining the top surface of the camshaft seat;

[0028] Figure 7 A top view structural schematic diagram of the positioning and placing state of the camshaft seat of the present utility model on the clamping tool for machining the top surface of the camshaft seat;

[0029] Reference numerals: 1 - camshaft seat; 2 - tooling base; 3 - support pin; 4 - first floating support cylinder; 5 - side positioning block; 6 - positioning rod; 7 - single-acting cylinder mounting block; 8 - hydraulic single-acting cylinder; 9 - support cylinder mounting seat; 10 - second floating support cylinder; 11 - side push cylinder mounting seat; 12 - side push hydraulic cylinder; 13 - lever oil cylinder; 14 - sequence valve; 15 - oil circuit board. Detailed implementation manners

[0030] The present utility model will be further described below in conjunction with specific embodiments. However, the uses and purposes of these exemplary embodiments are only used to illustrate the present utility model, and do not constitute any form of limitation to the actual protection scope of the present utility model, nor limit the protection scope of the present utility model thereto.

[0031] As Figures 1 to 7 Collectively shown, this embodiment provides a clamping tool for machining the top surface of a camshaft seat, including a tooling base 2. A number of support pins 3 and a first floating support cylinder 4 for supporting the camshaft seat 1 are provided on the tooling base 2. A number of positioning rods 6, a hydraulic single-acting cylinder 8 for positioning the camshaft seat 1, a number of second floating support cylinders 10 and side push hydraulic cylinders 12 for clamping the side of the camshaft seat 1, and a pressing mechanism for pressing the camshaft seat 1 are also provided on the tooling base 2. The positioning rods 6 are respectively arranged at one end and one side of the tooling base 2, the hydraulic single-acting cylinders 8 correspond to the positioning rods 6 respectively, and the side push hydraulic cylinders 12 correspond to the second floating support cylinders 10 respectively.

[0032] As Figures 2 to 7As shown together, in one embodiment, the support pins 3 and the first floating support cylinders 4 are both fixedly installed on the tooling base 2. The support pins 3 are respectively close to both ends of the tooling base 2 and are arranged in a triangular position to realize the support of the camshaft seat 1. The first floating support cylinders 4 are arranged in sequence on the tooling base 2. After the camshaft seat 1 is placed and positioned, the first floating support cylinders 4 work, contact the bottom surface of the camshaft seat 1, and realize the auxiliary support of the camshaft seat 1.

[0033] As Figures 2 to 7 As shown together, in one embodiment, a side positioning block 5 is fixedly installed at one end and one side of the tooling base 2. The positioning rods 6 are respectively installed on the side positioning block 5. A single-acting cylinder mounting block 7 is fixedly installed at the other end and the other side of the tooling base 2. The single-acting cylinder mounting block 7 corresponds to the side positioning block 5. The hydraulic single-acting cylinders 8 are respectively installed on the single-acting cylinder mounting blocks 7, and the positioning blocks and the hydraulic single-acting cylinders 8 are respectively arranged on the sides opposite to the side positioning block 5 and the single-acting cylinder mounting block 7. After the camshaft seat 1 is placed against the positioning rods 6, the hydraulic single-acting cylinders 8 work to realize the positioning of the camshaft seat 1.

[0034] As Figures 2 to 7 As shown together, in one embodiment, support cylinder mounting seats 9 are fixedly installed on both sides of the tooling base 2. The second floating support cylinders 10 are respectively installed on the tops of the support cylinder mounting seats 9; after the camshaft seat 1 is placed and positioned, the second floating support cylinders 10 work and contact the side wall of the camshaft seat 1 to provide a force-bearing support point.

[0035] As Figures 2 to 7 As shown together, in one embodiment, side push cylinder mounting seats 11 are also fixedly installed on the tooling base 2. The side push hydraulic cylinders 12 are respectively fixedly installed on the side push cylinder mounting seats 11, and the side push hydraulic cylinders 12 respectively correspond to the second floating support cylinders 10. After the second floating support cylinders 10 contact the side wall of the camshaft seat 1, the side push hydraulic cylinders 12 work to realize the clamping and fixing of the side wall of the camshaft seat 1.

[0036] As Figures 2 to 7 As shown together, in one embodiment, the support cylinder mounting seats 9 are respectively arranged in pairs on both sides of the tooling base 2. The side push cylinder mounting seats 11 are respectively located between two corresponding support cylinder mounting seats 9. The side push hydraulic cylinders 12 are respectively fixedly installed on the sides of the side push cylinder mounting seats 11 facing the support cylinder mounting seats 9. Thus, the installation of the side push hydraulic cylinders 12 is realized and the structure is compact.

[0037] As Figures 2 to 7As shown together, in one embodiment, the pressing mechanism includes a lever oil cylinder 13, which is fixedly installed on the tooling base 2, and the lever oil cylinder 13 corresponds to the support pin 3 and the first floating support cylinder 4 respectively. The lever oil cylinder 13 can realize the automatic pressing of the camshaft seat 1, achieve the firm clamping and fixing of the camshaft seat 1, and make the clamping and disassembling operations of the camshaft seat 1 simple and convenient.

[0038] As Figure 2 and Figure 3 As shown together, in one embodiment, the clamping surface of the tooling base 2 is an inclined chip guiding surface, which facilitates the falling of the chips generated during the machining process and avoids the accumulation of chips on the tooling base 2.

[0039] As Figures 2 to 7 As shown together, in one embodiment, a sequence valve 14 and an oil circuit board 15 are also fixedly installed on the tooling base 2. The sequence valve 14 is a valve that controls the action sequence of the actuators according to the pressure of the circuit, enabling the actuators such as the hydraulic single-acting cylinder 8, the floating support cylinder, and the lever oil cylinder 13 to accurately achieve the sequence action; the oil circuit board 15 is used to realize the oil circuit connection.

[0040] When positioning and clamping the camshaft seat 1, first place the camshaft seat 1 to be machined on the tooling base 2, support the camshaft seat 1 through the support pin 3, and ensure that the camshaft seat 1 abuts against the positioning rod 6. Then, the hydraulic single-acting cylinder 8 works, and the piston rod of the hydraulic single-acting cylinder 8 abuts against the camshaft seat 1. The positioning of the camshaft seat 1 is achieved through the hydraulic single-acting cylinder 8 and the positioning rod 6, and the camshaft seat 1 is limited between the hydraulic single-acting cylinder 8 and the positioning rod 6 to complete the positioning of the camshaft seat 1. After that, the first floating support cylinder 4 and the second floating support cylinder 10 act. The first floating support cylinder 4 contacts the bottom surface of the camshaft seat 1 to realize the auxiliary support of the camshaft seat 1, and the second floating support cylinder 10 contacts the side wall of the camshaft seat 1 to provide a force-bearing support point for the side wall of the camshaft seat 1. Finally, the side push hydraulic cylinder 12 and the lever oil cylinder 13 work. The side push hydraulic cylinder 12 cooperates with the second floating support cylinder 10 to realize the clamping of the side wall of the camshaft seat 1, and the lever oil cylinder 13 realizes the pressing of the camshaft seat 1, firmly fixing the camshaft seat 1 on the tooling base 2. In this way, the positioning and clamping of the camshaft seat 1 on this clamping tooling can be completed.

[0041] After the machining of the camshaft seat 1 is completed, the side push hydraulic cylinder 12 and the lever oil cylinder 13 work. The side push hydraulic cylinder 12 resets to release the clamping of the side wall of the camshaft seat 1, and the lever oil cylinder 13 resets to release the pressing of the camshaft seat 1. After that, the second floating support cylinder 10, the first floating support cylinder 4, and the hydraulic single-acting cylinder 8 reset, and the machined camshaft seat 1 can be removed from this clamping tooling, and then the positioning and clamping of the next camshaft seat 1 can be carried out. Repeat this process.

[0042] Through the clamping tooling for machining the top surface of the camshaft seat, not only can the accurate positioning and clamping of the camshaft seat 1 be realized, but also the camshaft seat 1 will not be damaged by clamping, and the camshaft seat 1 will not be deformed. In addition, the disassembly and assembly operations of the camshaft seat 1 are simple and convenient with this clamping tooling, and the clamping is firm and reliable, ensuring that the camshaft seat 1 will not shift or shake during the machining process, thus greatly improving the machining efficiency and quality of the camshaft seat 1. It has strong practicability and meets the usage requirements of the camshaft seat 1 for production line machining.

[0043] It should be understood that the use of these embodiments is only for illustrating the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A clamping tooling for machining the top surface of a camshaft seat, characterized in that: It includes a tooling base, on which there are several support pins for supporting the camshaft seat and a first floating support cylinder. There are also several positioning rods, a hydraulic single-acting cylinder for positioning the camshaft seat, several second floating support cylinders and side-push hydraulic cylinders for clamping the side of the camshaft seat, and a pressing mechanism for pressing the camshaft seat. The positioning rods are arranged at one end and one side of the tooling base respectively, the hydraulic single-acting cylinders correspond to the positioning rods respectively, and the side-push hydraulic cylinders correspond to the second floating support cylinders respectively.

2. The clamping tooling for machining the top surface of the camshaft seat according to claim 1, wherein: The support pins and the first floating support cylinder are both fixedly installed on the tooling base. The support pins are respectively close to both ends of the tooling base and are arranged in a triangular position, and the first floating support cylinders are arranged in sequence on the tooling base.

3. The clamping fixture for machining the top surface of the camshaft seat according to claim 1, wherein: Side positioning blocks are fixedly installed at one end and one side of the tooling base, and the positioning rods are respectively installed on the side positioning blocks. Single-acting cylinder mounting blocks are fixedly installed at the other end and the other side of the tooling base, and the hydraulic single-acting cylinders are respectively installed on the single-acting cylinder mounting blocks.

4. The clamping tooling for machining the top surface of the camshaft seat according to claim 1, characterized in that: Support cylinder mounting seats are fixedly installed on both sides of the tooling base, and the second floating support cylinders are respectively installed on the tops of the support cylinder mounting seats; A side-push cylinder mounting seat is also fixedly installed on the tooling base, and the side-push hydraulic cylinders are respectively fixedly installed on the side-push cylinder mounting seats.

5. The clamping tooling for machining the top surface of the camshaft seat according to claim 4, characterized in that: The support cylinder mounting seats are arranged in pairs on both sides of the tooling base respectively. The side-push cylinder mounting seats are respectively located between two corresponding support cylinder mounting seats, and the side-push hydraulic cylinders are respectively fixedly installed on the side of the side-push cylinder mounting seats facing the support cylinder mounting seats.

6. The clamping tooling for machining the top surface of the camshaft seat according to claim 1, wherein: The pressing mechanism includes a lever oil cylinder, which is fixedly installed on the tooling base and corresponds to the support pins and the first floating support cylinder respectively.

7. The clamping tool for machining the top surface of the camshaft seat according to any one of claims 1-6, characterized in that: The clamping surface of the tooling base is an inclined chip guide surface; And / or, a sequence valve and an oil circuit board are also fixedly installed on the tooling base.

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