A chain link positioning processing fixture device

Abstract

The present invention relates to the field of mechanical processing technology, and discloses a chain link positioning processing fixture device, including a positioning plate, the front four corners of the positioning plate are provided with threaded holes, a hydraulic cylinder is fixedly installed on one side of the top of the positioning plate, the output end of the hydraulic cylinder is fixedly connected to a pressure transmission rod, the side wall of the pressure transmission rod is provided with a positioning clamping mechanism, the top of the positioning plate is provided with a sleeve and a driving motor, the output end of the driving motor is fixedly connected to a bearing locking disk, one end of the bearing locking disk is fixedly connected to a gear through a connecting shaft, both ends of the sleeve are slidably connected to a support head, and one side of the support head is correspondingly fixedly connected to a plurality of racks. The chain link positioning processing fixture device ensures that the chain link can be initially positioned before being clamped and fixed, avoids the need for measurement work before positioning, saves working procedures, and does not cause the positioning support force to be offset.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a chain link positioning processing fixture device. Background Art

[0002] Chain links are important components of some large-scale mechanical engineering equipment such as chain grates. They are usually composed of two left-right symmetrical chain plates (i.e. a pair of chain plates constitutes a chain link). Therefore, the structural symmetry accuracy of the two chain plates in the same section is required to be relatively high. The chain plate body is usually a forged steel part with two coaxial circular holes on the left and right. The outer side surface of the chain plate is usually the initial forming surface during forging. Since it is an important component of mechanical equipment, the assembly accuracy of the chain links is very strict, especially the structural symmetry accuracy requirements of the two chain plates in the same section and the assembly accuracy between chain links.

[0003] The current chain link clamping method is to clamp the two circular holes separately, with poor positioning accuracy. It is necessary to measure and complete the positioning before positioning. The process is cumbersome and it is easy to loosen during processing, which is not conducive to processing. At the same time, the accuracy is highly dependent on the workers' technical level and the accuracy of the measuring tools, which will produce large errors and increase the processing failure rate. In addition, the current positioning processing fixture has low processing strength and cannot stably position, clamp and fix the chain link. For this reason, we propose a chain link positioning processing fixture device. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a chain link positioning processing fixture device, which ensures that the chain link can be initially positioned before being clamped and fixed, avoids the need for measuring work before positioning, saves working procedures, facilitates subsequent positioning processing, improves the processing accuracy of the workpiece, improves the qualified rate of the product, makes the support degree of the positioning clamping effect better, and does not cause the positioning support force to be offset, etc., solves the problem that the current chain link clamping method is to clamp the two circular holes separately, with poor positioning accuracy, and requires measurement before positioning to complete the positioning. The process is cumbersome, and it is easy to loosen during processing, which is not conducive to processing. At the same time, the accuracy is highly dependent on the technical level of the workers and the accuracy of the measuring tools, which will produce large errors and increase the unqualified rate of processing. In addition, the current positioning processing fixture has low processing strength and cannot stably position, clamp and fix the chain links.

[0005] In order to achieve the above-mentioned purpose of ensuring that the chain link can perform preliminary positioning before clamping and fixing, avoiding the need for measurement work before positioning, saving working procedures, facilitating subsequent positioning processing, improving the processing accuracy of the workpiece, improving the qualified rate of the product, making the support degree of the positioning and clamping effect better, and not causing the positioning and supporting force to be offset, the present invention provides the following technical solutions: a chain link positioning and processing fixture device, including a positioning plate, threaded holes are provided at the four corners of the front end of the positioning plate, a hydraulic cylinder is fixedly installed on one side of the top end of the positioning plate, the output end of the hydraulic cylinder is fixedly connected to a pressure transmission rod, and a positioning and clamping mechanism is provided on the side wall of the pressure transmission rod, a sleeve and a driving motor are provided on the top end of the positioning plate, a bearing locking disk is fixedly connected to the output end of the driving motor, one end of the bearing locking disk is fixedly connected to a gear through a connecting shaft, a support head is slidably connected in the sleeve, and a plurality of racks are fixedly connected to the top end of one side of the support head, and the racks are meshed with the gears.

[0006] Preferably, a positioning column is fixedly connected to one side of the top end of the positioning plate, and the positioning column is matched and penetrates and is slidably connected in the pressure transmission rod.

[0007] Preferably, the positioning clamping mechanism includes a positioning auxiliary plate, a mounting cylinder and a connecting rope, the positioning auxiliary plate is rotatably connected to both sides of the pressure transmission rod, the bottom end of the pressure transmission rod is fixedly connected to the connecting rod, the mounting cylinder is fixedly connected to the bottom end of the connecting rod, a connecting rope is slidably installed in the mounting cylinder, and the two ends of the connecting rope are respectively fixedly connected to one end of the two positioning auxiliary plates, a supporting spring is fixedly installed between the positioning auxiliary plate and the mounting cylinder, an electric push rod is fixedly installed in the middle of the bottom end of the pressure transmission rod, and the output end of the electric push rod is fixedly connected to the middle of the connecting rope.

[0008] Preferably, a plurality of mounting frames are fixedly connected to corresponding inner sides of the positioning auxiliary plates, and positioning support wheels are rotatably connected to the mounting frames, and the positioning support wheels are supported by rubber.

[0009] Preferably, a mounting seat is fixedly connected to the side wall of the sleeve, and the mounting seat is fixedly connected to the top end of the positioning plate.

[0010] Preferably, one end of the support head is fixedly connected to a mounting plate, the inner wall of the sleeve is fixedly connected to a fixing plate, and a first mounting spring is fixedly installed between the fixing plate and the mounting plate.

[0011] Preferably, a mounting column is fixedly mounted on one end of the fixing plate, a matching groove is formed on the side wall of the supporting head, and the matching groove of the supporting head is slidably connected to the side wall of the mounting column.

[0012] Preferably, a second mounting spring is fixedly mounted between the fixing plate and one end of the supporting head, and a diameter of the second mounting spring is smaller than a thickness of one end of the supporting head.

[0013] Compared with the prior art, the present invention provides a chain link positioning and processing fixture device, which has the following beneficial effects:

[0014] 1. The chain link positioning processing fixture device drives the connecting rope to move upward from the side wall of the mounting tube through the electric push rod, and then the two positioning auxiliary plates can be pulled to move through the connecting rope, so that the positioning auxiliary plates can position the workpiece through the positioning support wheel, ensuring that the workpiece can be in a vertical state, so that the workpiece processing space is larger, which is convenient for subsequent processing of the chain link, avoiding the need for measurement work before positioning, saving working procedures, facilitating subsequent positioning processing, improving the processing accuracy of the workpiece, and improving the qualified rate of the product.

[0015] 2. The chain link positioning processing fixture device can alleviate the inclination caused by the transmission of the gear and the rack by sliding the support head on the side wall of the installation column, so that the support degree of the positioning clamping effect is better and the positioning support force will not be offset.

[0016] 3. The chain link positioning processing fixture device uses the elastic potential energy of the first mounting spring and the second mounting spring to pull the support head back to the initial position, and at the same time uses the second mounting spring to prevent the support head from colliding with the sleeve.

[0017] 4. The chain link positioning processing fixture device of the present invention can greatly reduce the technical level requirements of workers, and ordinary personnel can realize clamping processing, saving labor costs. At the same time, it can realize automatic clamping of workpieces, simplify the process, and greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is the front view of the present invention;

[0020] Figure 3 A side sectional view of a pressure transmission rod of the present invention;

[0021] Figure 4 It is a schematic diagram of the gear installation structure of the present invention;

[0022] Figure 5 is a cross-sectional view of a sleeve of the present invention;

[0023] Figure 6 It is a schematic diagram of the support head structure of the present invention.

[0024] In the figure: 1. positioning plate; 2. threaded hole; 3. hydraulic cylinder; 4. pressure transmission rod; 5. positioning column; 6. positioning auxiliary plate; 7. connecting rod; 8. mounting cylinder; 9. connecting rope; 10. supporting spring; 11. electric push rod; 12. positioning support wheel; 13. sleeve; 14. driving motor; 15. bearing locking plate; 16. gear; 17. supporting head; 18. rack; 19. mounting plate; 20. fixing plate; 21. first mounting spring; 22. mounting column; 23. second mounting spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-6 A chain link positioning processing fixture device includes a positioning plate 1, threaded holes 2 are opened at the four corners of the front end of the positioning plate 1, a hydraulic cylinder 3 is fixedly installed on one side of the top of the positioning plate 1, the output end of the hydraulic cylinder 3 is fixedly connected to a pressure transmission rod 4, and the side wall of the pressure transmission rod 4 is provided with a positioning clamping mechanism, a sleeve 13 and a driving motor 14 are provided at the top of the positioning plate 1, a bearing locking plate 15 is fixedly connected to the output end of the driving motor 14, one end of the bearing locking plate 15 is fixedly connected to a gear 16 through a connecting shaft, support heads 17 are slidably connected to both ends of the sleeve 13, and a plurality of racks 18 are correspondingly fixedly connected to one side of the support head 17, and the racks 18 are meshed with the gears 16.

[0027] The chain link positioning processing fixture device ensures that the chain link can be initially positioned before being clamped and fixed, thereby avoiding the need for measurement work before positioning, saving working procedures, facilitating subsequent positioning processing, improving the processing accuracy of the workpiece, improving the qualified rate of the product, making the support degree of the positioning clamping effect better, and preventing the positioning support force from being offset.

[0028] A positioning column 5 is fixedly connected to one side of the top of the positioning plate 1, and the positioning column 5 is matched and penetrated and slidably connected in the pressure transmission rod 4; the positioning clamping mechanism includes a positioning auxiliary plate 6, a mounting cylinder 8 and a connecting rope 9, the positioning auxiliary plate 6 is rotatably connected to both sides of the pressure transmission rod 4, the bottom end of the pressure transmission rod 4 is fixedly connected to the connecting rod 7, the mounting cylinder 8 is fixedly connected to the bottom end of the connecting rod 7, a connecting rope 9 is slidably installed in the mounting cylinder 8, and the two ends of the connecting rope 9 are respectively fixedly connected to one end of the two positioning auxiliary plates 6, a supporting spring 10 is fixedly installed between the positioning auxiliary plate 6 and the mounting cylinder 8, an electric push rod 11 is fixedly installed in the middle of the bottom end of the pressure transmission rod 4, and the output end of the electric push rod 11 is fixedly connected to the middle of the connecting rope 9; the corresponding inner sides of the positioning auxiliary plates 6 are fixedly connected It is connected to several mounting frames, and the mounting frames are rotatably connected with positioning support wheels 12, which are supported by rubber; the side walls of the sleeve 13 are fixedly connected with mounting seats, and the mounting seats are fixedly connected to the top of the positioning plate 1; one end of the support head 17 is fixedly connected with a mounting plate 19, the inner wall of the sleeve 13 is fixedly connected with a fixing plate 20, and a first mounting spring 21 is fixedly installed between the fixing plate 20 and the mounting plate 19; one end of the fixing plate 20 is fixedly installed with a mounting column 22, the side walls of the support head 17 are provided with matching grooves, and the matching grooves of the support head 17 are slidably connected to the side walls of the mounting columns 22; a second mounting spring 23 is fixedly installed between the fixing plate 20 and one end of the support head 17, and the diameter of the second mounting spring 23 is smaller than the thickness of one end of the support head 17.

[0029] During operation, when the workpiece is placed at the center of the workbench fixture positioning body, the drive motor 14 is turned on to work, and the drive motor 14 drives the gear 16 to rotate through the bearing locking plate 15, and then the gear 16 is meshed with the rack 18, thereby driving the two support heads 17 to slide in the sleeve 13, and then the two support heads 17 are used to position the workpiece, and when the support head 17 is on the side wall of the mounting column 22, the tilt caused by the transmission of the gear 16 and the rack 18 can be alleviated, so that the support degree of the positioning and clamping effect is better, and the electric push rod 11 is used to drive the connecting rope 9 to move upward from the side wall of the mounting tube 8, and then through The two positioning auxiliary plates 6 can be pulled to move by the connecting rope 9, so that the positioning auxiliary plates 6 can perform positioning operations on the workpiece through the positioning support wheel 12, ensuring that the workpiece can be in a vertical state, so that the workpiece processing space is larger, which is convenient for subsequent processing of the chain links. When the processing is completed, the drive motor 14 stops working, and the first mounting spring 21 and the second mounting spring 23 use their elastic potential energy to pull the support head 17 back to the initial position, and at the same time, the second mounting spring 23 can prevent the support head 17 from colliding with the sleeve 13. The device can realize automatic clamping of the workpiece, simplify the process, and greatly improve production efficiency.

[0030] In summary, the positioning column 5 is matched and penetrated to be slidably connected in the pressure transmission rod 4, and the positioning column 5 is used to slide in the pressure transmission rod 4, so as to ensure that the pressure transmission rod 4 can have good stability during the movement; the positioning clamping mechanism includes a positioning auxiliary plate 6, a mounting tube 8 and a connecting rope 9, and the electric push rod 11 can be used to drive the connecting rope 9 to be pulled, so as to move the connecting rope 9 in the mounting tube 8, and finally move the positioning auxiliary plate 6, and the positioning auxiliary plate 6 supports the workpiece through the positioning support wheel 12, so that it can be accurately pushed before positioning and fixing, so as to reach the specified position; the positioning support wheel 12 is supported by rubber, so that the positioning support wheel 12 can have a better buffering effect when supporting. , to avoid impact on the workpiece; a mounting seat is fixedly connected to the side wall of the sleeve 13, and the mounting seat can be used to install the sleeve 13 on the top of the positioning plate 1 with higher fixing strength; a first mounting spring 21 is fixedly installed between the fixing plate 20 and the mounting plate 19, and after the workpiece is processed, the drive motor 14 is stopped and the operation is stopped, and then the support head 17 can be moved to its original position by using the first mounting spring 21; the support head 17 is slidably connected to the side wall of the mounting column 22 through the matching groove, so as to ensure that the support head 17 has better stability during the movement; the second mounting spring 23 can not only pull the support head 17 back to its original position, but also prevent the support head 17 from colliding with the sleeve 13.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain link positioning processing fixture device, comprising a positioning plate (1), characterized in that: The front end of the positioning plate (1) is provided with threaded holes (2), one side of the top end of the positioning plate (1) is fixedly mounted with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is fixedly connected with a pressure transmission rod (4), the side wall of the pressure transmission rod (4) is provided with a positioning clamping mechanism, the top end of the positioning plate (1) is provided with a sleeve (13) and a drive motor (14), the output end of the drive motor (14) is fixedly connected with a bearing locking plate (15), one end of the bearing locking plate (15) is fixedly connected with a gear (16) via a connecting shaft, both ends of the sleeve (13) are slidably connected with a support head (17), one side of the support head (17) is correspondingly fixedly connected with a plurality of racks (18), and the racks (18) are meshed with the gears (16); A positioning column (5) is fixedly connected to one side of the top end of the positioning plate (1), and the positioning column (5) is matched and penetrates and is slidably connected to the pressure transmission rod (4); The positioning clamping mechanism comprises a positioning auxiliary plate (6), a mounting cylinder (8) and a connecting rope (9); the positioning auxiliary plate (6) is rotatably connected to both sides of a pressure transmission rod (4); the bottom end of the pressure transmission rod (4) is fixedly connected to a connecting rod (7); the mounting cylinder (8) is fixedly connected to the bottom end of the connecting rod (7); a connecting rope (9) is slidably installed in the mounting cylinder (8); and both ends of the connecting rope (9) are respectively fixedly connected to one end of the two positioning auxiliary plates (6); a supporting spring (10) is fixedly installed between the positioning auxiliary plate (6) and the mounting cylinder (8); an electric push rod (11) is fixedly installed in the middle of the bottom end of the pressure transmission rod (4); and the output end of the electric push rod (11) is fixedly connected to the middle of the connecting rope (9); A plurality of mounting frames are fixedly connected to the corresponding inner sides of the positioning auxiliary plates (6), and positioning support wheels (12) are rotatably connected to the mounting frames, wherein the positioning support wheels (12) are supported by rubber.

2. A chain link positioning and processing fixture device according to claim 1, characterized in that: A mounting seat is fixedly connected to the side wall of the sleeve (13), and the mounting seat is fixedly connected to the top end of the positioning plate (1).

3. A chain link positioning and processing fixture device according to claim 1, characterized in that: One end of the support head (17) is fixedly connected to a mounting plate (19), the inner wall of the sleeve (13) is fixedly connected to a fixing plate (20), and a first mounting spring (21) is fixedly mounted between the fixing plate (20) and the mounting plate (19).

4. A chain link positioning and processing fixture device according to claim 3, characterized in that: A mounting column (22) is fixedly mounted on one end of the fixing plate (20), a matching groove is provided on the side wall of the supporting head (17), and the matching groove of the supporting head (17) is slidably connected to the side wall of the mounting column (22).

5. The chain link positioning and processing fixture device according to claim 3, characterized in that: A second mounting spring (23) is fixedly mounted between the fixing plate (20) and one end of the supporting head (17), and the diameter of the second mounting spring (23) is smaller than the thickness of one end of the supporting head (17).

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