Stud machining clamp with stable clamping mechanism

Abstract

The utility model discloses a stud processing clamp with a stable clamping mechanism, which belongs to the technical field of stud processing, and comprises a support table, the top of the support table is fixedly connected with a clamping mechanism, and the bottom of the clamping mechanism is fixedly connected with an anti-deviation mechanism. The clamping mechanism can quickly and accurately position and clamp the cylindrical part of the stud, is particularly suitable for a round stud, greatly improves the clamping efficiency, reduces the time cost of manual adjustment and positioning, can effectively improve the overall machining efficiency for the condition of batch machining of studs, and reduces the labor intensity of workers. The anti-deviation mechanism can limit the stud from the bottom of the stud and effectively restrain possible deviation of the stud in the machining process, particularly when the stud is affected by lateral component force of cutting force, machine tool vibration and the like in the machining process, it can be guaranteed that the stud is always kept at the correct machining position, and the axial precision and straightness of stud machining are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stud machining, especially relates to a stud machining clamp with a stable clamping mechanism. BACKGROUND

[0002] Studs are generally cylindrical, and both ends are generally provided with threads, but the threads at one end are often used to screw into the threaded holes of the connected parts to achieve fixed connection, and this part of the threads is generally called the screw-in end thread; the other end is fastened together with another connected part through a nut, and the end thread is called the fastening end thread, and the length of the whole stud varies according to actual use requirements, from a few millimeters to tens of centimeters or even longer, and the diameter also varies in size, covering many cases from fine specifications used for precision instrument connection to larger sizes used in large machinery, building structures and other fields.

[0003] The existing welding clamp only holds the workpiece by clamping force, and since the shapes of the workpieces are different, the clamping force is unevenly distributed, which can easily cause the position of the workpiece to deviate during operation, thereby reducing the machining accuracy.

[0004] The existing patent (publication number: CN217438696U) discloses a stud welding clamp, which comprises a fixed support, a support plate is arranged on the fixed support, a clamping assembly is arranged on one side of the support plate, and a positioning pin is arranged on the clamping assembly.

[0005] In view of the above problems, the existing patent provides a solution, but it lacks a structure for auxiliary fixing during stud machining, which can cause unnecessary vibration and oscillation of the stud due to its large length-diameter ratio or under the action of cutting force, thereby making it difficult to maintain a stable relative positional relationship between the machining tool and the stud.

[0006] Therefore, a stud machining clamp with a stable clamping mechanism is proposed. UTILITY MODEL CONTENTS

[0007] The utility model discloses a purpose lies in, provide a kind of stud machining clamp with stable clamping mechanism, can solve the structure that the present stud machining lacks when being fixed in auxiliary to stud machining, leading to stud possibly because of its length-diameter ratio is larger or under the action of cutting force, unnecessary vibration and swing are generated, so that the problem that processing tool and stud are difficult to keep stable relative position relation between.

[0008] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of stud machining clamp with stable clamping mechanism, including support table, the top of the support table is fixedly connected with clamping mechanism, the bottom of the clamping mechanism is fixedly connected with anti-deviation mechanism;

[0009] The clamping mechanism includes several support rods, limit ring, three-jaw chuck and several fixed rods, the bottom of the support rod is fixedly connected at the top of support table, the limit ring is fixedly connected at the top of support rod, the fixed rod is fixedly connected at the surface of three-jaw chuck, the side of the fixed rod away from three-jaw chuck is fixedly connected at the inner wall of limit ring, and the three-jaw chuck is fixedly connected at the inner side of limit ring.

[0010] Preferably, the anti-deviation mechanism includes a limiting plate, a connecting rod, a sliding groove, a left limiting tube, a clamping groove, a right limiting tube, a clamping block, a plurality of spring telescopic rods, a contact block, a limiting rod, a threaded rod and a servo motor, and the limiting plate is fixedly connected to the top of the support table.

[0011] Preferably, the bottom of the connecting rod is fixedly connected to the top of the limiting plate, the top of the connecting rod is fixedly connected to the bottom of the three-jaw chuck, the sliding groove is formed in the inner side of the limiting plate, the left limiting tube is fixedly connected to the left side of the inner side of the sliding groove, the clamping groove is formed in the inner side of the left limiting tube, the right limiting tube is slidably connected to the right side of the inner side of the sliding groove, the clamping block is fixedly connected to the surface of the right limiting tube, the spring telescopic rods are respectively fixedly connected to the inner walls of the left limiting tube and the right limiting tube, and the contact block is fixedly connected to the side of the spring telescopic rods away from the left limiting tube and the right limiting tube.

[0012] Preferably, the limiting rod is fixedly connected to the bottom of the rear side of the left limiting tube, the bottom of the rear side of the right limiting tube is slidably connected to the surface of the limiting rod, the threaded rod is rotatably connected to the inner side of the front side of the left limiting tube, the inner side of the front side of the right limiting tube is threadedly connected with the threaded rod, the servo motor is fixedly connected to the inner side of the limiting plate, and the output end of the left side of the servo motor is fixedly connected to the right side of the threaded rod.

[0013] Preferably, the side of the contact block away from the spring telescopic rods is fixedly connected with a buffer pad, and the surface of the buffer pad is engraved with anti-skid lines.

[0014] Preferably, the bottom of the supporting rod is fixedly connected with a reinforcing ring, and the side, away from the supporting rod, of the reinforcing ring is fixedly connected to the top of the supporting table.

[0015] Preferably, the surface of the three-jaw chuck is sleeved with a rubber pad, and the surface of the rubber pad is engraved with anti-skid lines.

[0016] Preferably, the bottom of the supporting table is sleeved with a shock pad, the shock pad is made of rubber material, and the bottom of the shock pad is engraved with anti-skid lines.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The clamping mechanism can quickly and accurately position and clamp the cylindrical part of the stud, especially for circular studs, greatly improving the clamping efficiency and reducing the time cost of manual adjustment and positioning.

[0019] 2. The anti-deviation mechanism can limit the stud from the bottom, effectively constrain the deviation of the stud during processing, especially when affected by lateral force, machine vibration and other factors during processing, to ensure that the stud always remains in the correct processing position and improves the axial accuracy and straightness of the stud processing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure diagram of the stud machining clamp with the stable clamping mechanism.

[0021] Figure 2 It is a whole structure diagram of the clamping mechanism.

[0022] Figure 3 It is an enlarged schematic view of A in the utility model. Figure 2

[0023] Figure 4 It is a structure schematic view of the right limiting pipe.

[0024] Figure 5 It is an enlarged schematic view of B in the utility model. Figure 4

[0025] Figure 6 It is a structure schematic view of the shock pad.

[0026] ​​In the figure, 1, support table; 2, clamping mechanism; 201, support rod; 202, limiting ring; 203, three-jaw chuck; 204, fixed rod; 3, anti-deviation mechanism; 301, limiting plate; 302, connecting rod; 303, sliding groove; 304, left limiting tube; 305, clamping groove; 306, right limiting tube; 307, clamping block; 308, spring telescopic rod; 309, contact block; 310, limiting rod; 311, threaded rod; 312, servo motor; 4, buffer pad; 5, reinforcing ring; 6, rubber pad; 7, shock pad. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-6 The utility model provides technical scheme:

[0029] A kind of stud machining clamp with stable clamping mechanism, including support table 1, the top of support table 1 is fixedly connected with clamping mechanism 2, the bottom of clamping mechanism 2 is fixedly connected with anti-deviation mechanism 3;

[0030] Clamping mechanism 2 includes several support rods 201, limiting ring 202, three-jaw chuck 203 and several fixed rods 204, the bottom of support rod 201 is fixedly connected in the top of support table 1, limiting ring 202 is fixedly connected in the top of support rod 201, fixed rod 204 is fixedly connected on the surface of three-jaw chuck 203, the side of fixed rod 204 away from three-jaw chuck 203 is fixedly connected in the inner wall of limiting ring 202, three-jaw chuck 203 is fixedly connected on the inner side of limiting ring 202.

[0031] In the embodiment: by setting the support table 1 as the clamping mechanism 2 and the anti-deviation mechanism 3 provide a stable installation plane, can ensure that the whole fixture is placed stably on the machine tool workbench, the support rod 201 can evenly disperse the weight of the limiting ring 202 and the subsequent installation of three-jaw chuck 203 and other components to the support table 1, so that the stress of the whole clamping mechanism 2 is more balanced, the limiting ring 202 provides accurate installation positioning for the three-jaw chuck 203, the three-jaw chuck 203 can automatically center the cylindrical part of the stud, when clamping the stud, the operator only needs to put the stud into the three-jaw chuck 203, the three clamping jaws of the three-jaw chuck 203 will move synchronously to the center and tightly hold the stud, the fixing rod 204 connects the three-jaw chuck 203 and the limiting ring 202 firmly together to form a stable overall structure, which shares the external force borne by the three-jaw chuck 203 when clamping the stud.

[0032] Specifically, as shown in Figure 4 , Figure 5 , the anti-deviation mechanism 3 includes a limiting plate 301, a connecting rod 302, a sliding groove 303, a left limiting tube 304, a clamping groove 305, a right limiting tube 306, a clamping block 307, a plurality of spring telescopic rods 308, a contact block 309, a limiting rod 310, a threaded rod 311 and a servo motor 312, and the limiting plate 301 is fixedly connected to the top of the support table 1.

[0033] Specifically, as shown in Figure 4 , the bottom of the connecting rod 302 is fixedly connected to the top of the limiting plate 301, the top of the connecting rod 302 is fixedly connected to the bottom of the three-jaw chuck 203, the sliding groove 303 is opened in the inner side of the limiting plate 301, the left limiting tube 304 is fixedly connected to the left side of the inner side of the sliding groove 303, the clamping groove 305 is opened in the inner side of the left limiting tube 304, the right limiting tube 306 is slidingly connected to the right side of the inner side of the sliding groove 303, the clamping block 307 is fixedly connected to the surface of the two sides of the right limiting tube 306, the spring telescopic rod 308 is fixedly connected to the inner wall of the left limiting tube 304 and the right limiting tube 306 respectively, and the contact block 309 is fixedly connected to the side away from the left limiting tube 304 and the right limiting tube 306 of the spring telescopic rod 308.

[0034] Specifically, as shown in Figure 4 , the limiting rod 310 is fixedly connected to the bottom of the rear side of the left limiting tube 304, the bottom of the rear side of the right limiting tube 306 is slidingly connected to the surface of the limiting rod 310, the threaded rod 311 is rotationally connected to the inner side of the front side of the left limiting tube 304, the inner side of the front side of the right limiting tube 306 is threadedly connected with the threaded rod 311, the servo motor 312 is fixedly connected to the inner side of the limiting plate 301, and the output end on the left side of the servo motor 312 is fixedly connected to the right side of the threaded rod 311.

[0035] In the embodiment, the limiting plate 301 supports and limits the connecting rod 302, the sliding groove 303 and the servo motor 312, the connecting rod 302 transmits part of the external force borne by the three-jaw chuck 203 during clamping and machining to the limiting plate 301, further disperses and balances the stress of the whole clamp, the sliding groove 303 provides a precise sliding guide channel for the right limiting tube 306, so that the right limiting tube 306 can only slide in the direction defined by the sliding groove 303, the left limiting tube 304 can cooperate with the right limiting tube 306 to assist clamping the bottom of the stud when the stud is clamped, the clamping groove 305 can support and limit the clamping block 307 when the left limiting tube 304 contacts the right limiting tube 306, the clamping block 307 cooperates with the clamping groove 305 of the left limiting tube 304 to form clamping of the left limiting tube 304 and the right limiting tube 306, the spring telescopic rod 308 has elastic telescopic properties and can be self-adapted to adjust the length according to the actual diameter of the stud during clamping, the contact block 309 forms appropriate contact pressure with the surface of the stud, which can not only support the stud well to prevent the stud from being deflected due to its own gravity or external force during machining, but also will not damage the surface of the stud due to excessive rigid contact, thereby ensuring the stable state of the stud in the clamp, the limiting rod 310 provides a rear guide for the sliding of the right limiting tube 306, the threaded rod 311 drives the right limiting tube 306 to slide along the sliding groove 303 under the guidance of the limiting rod 310, and the servo motor 312 automatically and accurately adjusts the position of the right limiting tube 306 without manual operation, thereby improving the efficiency and precision of adjustment.

[0036] Specifically, as shown in Figure 5 The side of the contact block 309 away from the spring telescopic rod 308 is fixedly connected with a buffer pad 4, and the surface of the buffer pad 4 is engraved with anti-skid lines.

[0037] Specifically, as shown in Figure 2 The bottom of the supporting rod 201 is fixedly connected with a reinforcing ring 5, and the side of the reinforcing ring 5 away from the supporting rod 201 is fixedly connected to the top of the supporting table 1.

[0038] In the embodiment, the buffer pad 4 is arranged to further avoid slight scratches and wear between the contact block 309 and the stud when they are in contact, the anti-skid lines are arranged to increase the friction between the contact block 309 and the stud, and the reinforcing ring 5 is arranged to make the connection between the supporting rod 201 and the supporting table 1 more firm and reliable.

[0039] Specifically, as shown in Figure 3As shown, the surface of the three-jaw chuck 203 is sleeved with a rubber pad 6, and the surface of the rubber pad 6 is engraved with anti-skid lines.

[0040] Specifically, as shown in the drawings, the bottom of the support table 1 is sleeved with a shock pad 7, the shock pad 7 is made of rubber material, and the bottom of the shock pad 7 is engraved with anti-skid lines. Figure 6

[0041] In this embodiment: by setting the rubber pad 6, a buffering effect can be achieved between the stud and the three-jaw chuck 203, avoiding direct contact between the metal surface of the chuck and the stud to cause scratches on the surface of the stud, by setting the anti-skid lines, the friction with the surface of the stud can be increased, so that the stud is not easy to loosen, rotate or axially move after being clamped, by setting the shock pad 7, the vibration generated during the operation of the machine tool and the vibration caused by cutting force and other factors during machining can be effectively absorbed, by setting the shock pad 7 to be made of rubber material, the rubber itself has good elasticity and damping characteristics, which helps to improve the precision of stud machining, by setting the anti-skid lines, the friction with the surface of the machine tool workbench can be increased, so that the fixture is placed more stably on the workbench.

[0042] ​Working principle: first, the user will support the table 1 is fixed in the machine tool worktable suitable position, when need to process the stud, the operator puts the stud to be processed in the inside of three jaw chuck 203, then, power on and start three jaw chuck 203, three jaw chuck 203 starts to work, the inside chuck jaw will move to the center synchronously, gradually clamp and firmly fix the cylindrical surface of the stud, after the stud is firmly clamped by three jaw chuck 203, the operator then power on and start servo motor 312, servo motor 312 its output shaft drives the threaded rod 311 connected with it to rotate, because the threaded rod 311 and right limiting tube 306 between the threaded connection, and the right limiting tube 306 rear side is along the limiting rod 310 sliding, under the action of the rotation of threaded rod 311, the right limiting tube 306 will along the limiting rod 310 to the left side of the sliding groove 303 stable movement, with the right limiting tube 306 constantly moving to the left, until it contacts with the left limiting tube 304, the right limiting tube 306 both sides of the clamping block 307 will accurately clamp into the clamping groove 305 of the left limiting tube 304, so as to realize the clamping of both, at this time, the contact block 309 inside the left and right limiting tube 306 also will as the case may be with the surface of the bottom of the stud gently contact, after the contact block 309 contacts with the stud, it will drive the spring telescopic rod 308 connected with it to move to the inner wall of the left and right limiting tube 306 appropriately due to the shape of the stud and the extrusion force, the spring telescopic rod 308 relies on its elastic self adaptive characteristics, so that the contact block 309 can closely fit the shape of the stud, from both sides of the bottom of the stud to form stable and flexible support and limiting, finally, the operator can control the machine tool to carry out corresponding processing procedure on the stud, after the stud is processed, the operator reverses the servo motor 312, in the reverse process, the threaded rod 311 reverse rotation, drive the right limiting tube 306 along the limiting rod 310 to the direction away from the left limiting tube 304, realize the separation of both, and make the right limiting tube 306 return to the initial position, then, the user starts three jaw chuck 203 again, so that the chuck jaw reversely moves, loosen the clamping of the stud, the operator can take out the processed stud from the fixture.

[0043] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stud machining clamp having a stable clamping mechanism, comprising a support table (1), characterized in that: The top of the support table (1) is fixedly connected with a clamping mechanism (2), and the bottom of the clamping mechanism (2) is fixedly connected with an anti-deviation mechanism (3). The clamping mechanism (2) comprises a plurality of support rods (201), a limiting ring (202), a three-jaw chuck (203) and a plurality of fixed rods (204), the bottom of the support rod (201) is fixedly connected to the top of the support table (1), the limiting ring (202) is fixedly connected to the top of the support rod (201), the fixed rod (204) is fixedly connected to the surface of the three-jaw chuck (203), the side, away from the three-jaw chuck (203), of the fixed rod (204) is fixedly connected to the inner wall of the limiting ring (202), and the three-jaw chuck (203) is fixedly connected to the inner side of the limiting ring (202).

2. A stud machining clamp having a stable clamping mechanism according to claim 1, characterized in that: The anti-deviation mechanism (3) comprises a limiting plate (301), a connecting rod (302), a sliding groove (303), a left limiting tube (304), a clamping groove (305), a right limiting tube (306), a clamping block (307), a plurality of spring telescopic rods (308), a contact block (309), a limiting rod (310), a threaded rod (311) and a servo motor (312), and the limiting plate (301) is fixedly connected to the top of the support table (1).

3. A stud machining clamp having a stable clamping mechanism according to claim 2, characterized in that: The bottom of the connecting rod (302) is fixedly connected to the top of the limiting plate (301), the top of the connecting rod (302) is fixedly connected to the bottom of the three-jaw chuck (203), the sliding groove (303) is formed in the inner side of the limiting plate (301), the left limiting tube (304) is fixedly connected to the left side of the inner side of the sliding groove (303), the clamping groove (305) is formed in the inner side of the left limiting tube (304), the right limiting tube (306) is slidably connected to the right side of the inner side of the sliding groove (303), the clamping block (307) is fixedly connected to the surfaces of the two sides of the right limiting tube (306), the spring telescopic rods (308) are respectively fixedly connected to the inner walls of the left limiting tube (304) and the right limiting tube (306), and the contact block (309) is fixedly connected to the side, away from the left limiting tube (304) and the right limiting tube (306), of the spring telescopic rod (308).

4. A stud machining clamp having a stable clamping mechanism according to claim 2, characterized in that: The limiting rod (310) is fixedly connected to the bottom of the rear side of the left limiting tube (304), the bottom of the rear side of the right limiting tube (306) is slidably connected to the surface of the limiting rod (310), the threaded rod (311) is rotatably connected to the inner side of the front side of the left limiting tube (304), the inner side of the front side of the right limiting tube (306) is threadedly connected with the threaded rod (311), the servo motor (312) is fixedly connected to the inner side of the limiting plate (301), and the output end, on the left side of the servo motor (312), is fixedly connected to the right side of the threaded rod (311).

5. A stud machining clamp having a stable clamping mechanism according to claim 2, characterized in that: The side, away from the spring telescopic rod (308), of the contact block (309) is fixedly connected with a buffer pad (4), and the surface of the buffer pad (4) is marked with anti-skid lines.

6. A stud machining clamp having a stable clamping mechanism according to claim 1, characterized in that: The bottom of the support rod (201) is fixedly connected with a reinforcing ring (5), and the side, away from the support rod (201), of the reinforcing ring (5) is fixedly connected to the top of the support table (1).

7. A stud machining clamp having a stable clamping mechanism as claimed in claim 1, characterized in that: The surface of the three-jaw chuck (203) is sleeved with a rubber pad (6), and the surface of the rubber pad (6) is engraved with anti-skid lines.

8. A stud machining clamp having a stable clamping mechanism as claimed in claim 1, characterized in that: The bottom of the support table (1) is sleeved with a shock pad (7), the shock pad (7) is made of rubber material, and the bottom of the shock pad (7) is engraved with anti-skid lines.

Images