Multi-station tool clamp for crankshaft grinding

Abstract

The multi-station tool clamp comprises a workbench, supporting plates are symmetrically installed at the top end of the workbench, a machine case is installed on one sides of the supporting plates, a clamping mechanism is arranged on the sides, away from the machine case, of the supporting plates, and an adjusting mechanism is arranged in the workbench. The clamping mechanism comprises a mounting disc rotationally connected to one side of the supporting plate, a rotating disc is rotationally connected to one side of the mounting disc, spiral teeth are fixedly connected to one side of the rotating disc, a sliding groove is formed in one side of the mounting disc, and a clamping block is slidably connected to the interior of the sliding groove. Therefore, a worker can carry out rapid adjustment according to the thickness of the crankshaft, multi-station adjustment can be achieved through single operation, the crankshaft can be switched among different stations more rapidly, the pause and adjustment time in the production process is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft processing equipment, in particular to a multi-station fixture for crankshaft grinding. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. After machining, the crankshaft generally needs to be polished to remove burrs and cloaks left on the crankshaft surface by machining.

[0003] Publication No. CN216029763U discloses a crankshaft grinding clamping device, which inserts the two ends of the crankshaft into the corresponding limit grooves respectively, and drives the threaded rod to rotate by turning the knob, thereby driving the limit plate to move until the limit plate contacts the surface of the crankshaft, so as to clamp and fix the crankshaft. At the same time, it can adapt to crankshafts of various sizes to prevent the crankshaft from moving during the grinding process. By providing a hydraulic rod, the distance between the two mounting blocks can be adjusted, so as to facilitate the clamping and fixing of crankshafts of different lengths. The patent is highly practical, but the following problems still exist in the actual use of the patent:

[0004] The device can drive the threaded rod to rotate by turning the knob, thereby driving the limit plate to move until the limit plate contacts the surface of the crankshaft, so as to clamp and fix the crankshaft. Since the device is provided with multiple knobs to fix the two ends of the crankshaft, and the angles of the multiple knobs are relatively consistent when they are rotated, it brings inconvenience to the staff when using it, and greatly reduces the crankshaft processing efficiency.

[0005] A multi-station fixture for crankshaft grinding is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a multi-station tooling fixture for crankshaft grinding to solve the problem proposed in the above-mentioned background technology that the threaded rod can be rotated by turning a knob, thereby driving the limit plate to move until the limit plate contacts the surface of the crankshaft, so as to clamp and fix the crankshaft. Since the device is provided with multiple knobs to fix the two ends of the crankshaft, and the angles of the multiple knobs are relatively consistent when they are rotated, it brings inconvenience to the staff when using it, and greatly reduces the crankshaft processing efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-station fixture for crankshaft grinding, comprising a workbench, a support plate is symmetrically installed on the top of the workbench, and a chassis is installed on one side of the support plate, a clamping mechanism is arranged on the side of the support plate away from the chassis, and an adjustment mechanism is arranged inside the workbench;

[0008] In which, the clamping mechanism includes a mounting plate rotatably connected to one side of the support plate, and one side of the mounting plate is rotatably connected to a rotating plate, and one side of the rotating plate is fixedly connected to a spiral tooth, and a sliding groove is opened on one side of the mounting plate, and a clamping block is slidably connected inside the sliding groove, and a side of the clamping block away from the sliding groove is threadedly connected to the spiral tooth, and one side of the rotating plate is fixedly connected to a first toggle block, and a rotating block is rotatably connected inside one side of the mounting plate, and one end of the rotating block is fixedly connected to a second toggle block, and the first toggle block and the second toggle block are cross-slidingly connected.

[0009] Preferably, the adjusting mechanism includes a sliding groove opened on the top side of the workbench, and the sliding groove is rotatably connected with forward and reverse screws inside, and movable sleeves are threadedly connected on the outer walls at both ends of the forward and reverse screws, and the support plate and the bottom end of the chassis are fixedly connected to the movable sleeve, and one side of the workbench is fixedly connected to a mounting box, and one end of the forward and reverse screws penetrates the mounting box for rotational connection, and a sliding rod is slidably connected inside one end of the mounting box, and the sliding rod is located at one end of the mounting box and is fixedly connected to a push plate, and an insertion block is symmetrically fixedly connected to one side of the push plate, and the insertion block and the forward and reverse screws are clamped and fixedly connected, and a retraction rod is symmetrically fixedly connected between the push plate and the inside of the mounting box, and a second telescopic spring is sleeved on the outer wall of the retraction rod, and the internal connecting shaft of the chassis is fixedly connected to the mounting disk.

[0010] Preferably, a mounting tube is fixedly connected to one side of the mounting plate, and an insertion rod is slidably connected to the inside of the mounting tube, and a push block is symmetrically fixedly connected to the outer wall of the insertion rod, and an inner end of the mounting tube is symmetrically fixedly connected to a limiting tube, and an extrusion rod is slidably connected to the inside of one end of the limiting tube, and a first telescopic spring is fixedly connected between one end of the extrusion rod and the inside of the limiting tube, and a slot is opened on the outer wall of the rotating block, and one end of the insertion rod is fixedly connected to the slot by snap-fitting.

[0011] Preferably, the top side of the workbench is symmetrically provided with limiting grooves, and the bottom end of the support plate is snap-fitted and slidably connected to the limiting grooves.

[0012] Preferably, a rubber pad is fixedly connected to one side of the clamping block.

[0013] Preferably, one end of the forward and reverse screws is fixedly connected with a handle.

[0014] Preferably, one end of the extrusion rod away from the limiting tube is fixedly connected to the push block.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the multi-station tooling fixture for crankshaft grinding has the following specific contents: the second toggle block is driven to rotate by rotating the rotating block, and the second toggle block cross-slides with the first toggle block, and the rotation of the rotating disk drives the rotation of the spiral teeth, so that the two ends of the crankshaft are quickly fixed with the center of the rotating disk, so that the staff can quickly adjust according to the thickness of the crankshaft, and the adjustment of multiple stations can be achieved through a single operation, so that the switching of the crankshaft between different stations is faster, and the pause and adjustment time in the production process is reduced, thereby improving the production efficiency. Through the contractility of the first telescopic spring, the insertion rod and the slot are engaged and fixed, and then the adjusted rotating block can be fixed and limited, and the movement of the movable sleeve is driven by the rotation of the forward and reverse screws. Through the contractility of the second telescopic spring, the insertion block and the forward and reverse screws are engaged and fixed, thereby achieving the effect of quickly positioning the crankshaft length. Compared with the prior art method of using powered equipment to drive, it is more energy-saving and reduces the cost of using the device.

[0016] 1. The second toggle block is driven to rotate by rotating the rotating block, and the second toggle block cross-slides with the first toggle block, thereby driving the rotation of the rotating disk, and the rotation of the rotating disk drives the rotation of the spiral teeth, and the rotation of the spiral teeth makes the clamp block present a running trajectory of gathering and unfolding, so that the two ends of the crankshaft are quickly fixed at the center of the rotating disk, so that the staff can quickly adjust according to the thickness of the crankshaft, and the adjustment of multiple stations can be achieved through a single operation, so that the switching of the crankshaft between different stations is faster, and the pause and adjustment time in the production process is reduced, thereby improving the production efficiency. The movement of the push block drives the extrusion rod to extrude the first telescopic spring, and the contractility of the first telescopic spring makes the insertion rod and the slot engage and fix, so that the adjusted rotating block can be fixed and limited, thereby greatly improving the stability of the clamp block fixing the crankshaft;

[0017] 2. The movement of the movable sleeve is driven by the rotation of the forward and reverse screws. At this time, the movable sleeves gather and expand. When the crankshaft is positioned, the push plate is driven to move by pulling the slide bar. The movement of the push plate contracts the retractable rod and the second telescopic spring. The slide bar is loosened, and then the second telescopic spring is contracted, so that the insert block and the forward and reverse screws are engaged and fixed, thereby achieving the effect of quickly positioning the crankshaft length. Compared with the method of using powered equipment to drive in the prior art, it is more energy-saving and reduces the cost of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view of the clamping mechanism in the utility model;

[0020] Figure 3 It is a schematic diagram of the overall enlarged side view of the rotating disk in the utility model;

[0021] Figure 4 This is a schematic diagram of the overall enlarged structure of the transfer block of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall operation side view of the clamping mechanism in the utility model;

[0023] Figure 6 It is a partial enlarged structural diagram of the adjustment mechanism in the utility model;

[0024] Figure 7 It is a partial enlarged structural schematic diagram of the clamping mechanism in the utility model;

[0025] Figure 8 It is a schematic diagram of the overall side structure of the utility model.

[0026] In the figure: 1. workbench; 101. support plate; 102. chassis; 2. clamping mechanism; 201. mounting plate; 202. rotating plate; 203. spiral teeth; 204. slide groove; 205. clamping block; 206. first toggle block; 207. rotating block; 208. second toggle block; 209. mounting tube; 210. plug rod; 211. push block; 212. limit tube; 213. extrusion rod; 214. first telescopic spring; 215. slot; 216. rubber pad; 3. adjustment mechanism; 301. sliding groove; 302. forward and reverse screw rods; 303. movable sleeve; 304. mounting box; 305. slide rod; 306. push plate; 307. plug block; 308. retractable rod; 309. second telescopic spring; 310. limit groove; 311. handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-8 The utility model provides a technical solution: a multi-station fixture for crankshaft grinding, comprising a workbench 1, a support plate 101 is symmetrically mounted on the top of the workbench 1, a chassis 102 is mounted on one side of the support plate 101, a clamping mechanism 2 is arranged on the side of the support plate 101 away from the chassis 102, and an adjusting mechanism 3 is arranged inside the workbench 1;

[0029] The clamping mechanism 2 includes a mounting plate 201 rotatably connected to one side of the support plate 101, and one side of the mounting plate 201 is rotatably connected to a rotating plate 202, and one side of the rotating plate 202 is fixedly connected to a spiral tooth 203, and one side of the mounting plate 201 is provided with a slide groove 204, and the inside of the slide groove 204 is slidably connected to a clamping block 205, and the side of the clamping block 205 away from the slide groove 204 is threadedly connected to the spiral tooth 203, and one side of the rotating plate 202 is fixedly connected to a first toggle block 206, and the mounting plate 201 A rotating block 207 is rotatably connected to one side of the crankshaft, and one end of the rotating block 207 is fixedly connected to the second toggle block 208, and the first toggle block 206 and the second toggle block 208 are cross-slidably connected, so that the two ends of the crankshaft are quickly fixed to the center of the rotating disk 202, so that the staff can quickly adjust according to the thickness of the crankshaft, and the adjustment of multiple positions can be achieved through a single operation, so that the switching of the crankshaft between different positions is faster, the pause and adjustment time in the production process is reduced, and the production efficiency is improved. The side is fixedly connected with a mounting tube 209, and the inside of the mounting tube 209 is slidably connected with an insertion rod 210, and a push block 211 is symmetrically fixedly connected to the outer wall of the insertion rod 210, and one end of the inside of the mounting tube 209 is symmetrically fixedly connected with a limiting tube 212, and one end of the limiting tube 212 is slidably connected to an extrusion rod 213, and the end of the extrusion rod 213 away from the limiting tube 212 is fixedly connected to the push block 211, and a first telescopic spring 214 is fixedly connected between one end of the extrusion rod 213 and the inside of the limiting tube 212, and the rotating block 2 A slot 215 is provided on the outer wall of 07, and one end of the insertion rod 210 is engaged and fixedly connected with the slot 215. Through the contractility of the first telescopic spring 214, the insertion rod 210 and the slot 215 are engaged and fixed, so that the adjusted rotating block 207 can be fixed and limited, thereby greatly improving the fixing stability of the clamping block 205 to the crankshaft. A rubber pad 216 is fixedly connected to one side of the clamping block 205. Through the design of the rubber pad 216, the crankshaft surface and the clamping block 205 can be in rigid contact to avoid damage to the crankshaft.

[0030] The adjusting mechanism 3 includes a sliding groove 301 opened on the top side of the workbench 1, and the sliding groove 301 is rotatably connected with a forward and reverse screw rod 302 inside, and a movable sleeve 303 is threadedly connected to the outer side walls of the forward and reverse screw rods 302 at both ends, and the bottom ends of the support plate 101 and the chassis 102 are fixedly connected to the movable sleeve 303, and one side of the workbench 1 is fixedly connected to a mounting box 304, and one end of the forward and reverse screw rod 302 penetrates the mounting box 304 for rotational connection, and a sliding rod 305 is slidably connected to the inside of one end of the mounting box 304, and the sliding rod 305 is located at one end inside the mounting box 304 and is fixedly connected to a push plate 306, and one side of the push plate 306 is symmetrically fixedly connected with an insert block 307, and the insert block 307 is fixedly connected to the forward and reverse screw rods 302 by snapping, and the push plate 306 is symmetrically fixedly connected to the inside of the mounting box 304 It is connected to a retractable rod 308, and a second telescopic spring 309 is sleeved on the outer side wall of the retractable rod 308, and the internal connecting shaft of the chassis 102 is fixedly connected to the mounting plate 201, so that the plug block 307 and the forward and reverse screws 302 are engaged and fixed, thereby achieving the effect of quickly positioning the crankshaft length. Compared with the method of using powered equipment to drive in the prior art, it is more energy-efficient and reduces the cost of using the device. The top side of the workbench 1 is symmetrically provided with a limiting groove 310, and the bottom end of the support plate 101 is engaged and slidably connected with the limiting groove 310. Through the sliding connection between the bottom end of the support plate 101 and the limiting groove 310, the movement of the support plate 101 is more stable, and one end of the forward and reverse screws 302 is fixedly connected with a handle 311. Through the design of the handle 311, it is convenient for the staff to rotate the forward and reverse screws 302.

[0031] Working principle: Before using this multi-station fixture for crankshaft grinding, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 8As shown, by rotating the rotating block 207, the second toggle block 208 is driven to rotate, and the second toggle block 208 cross-slides with the first toggle block 206, thereby driving the rotation of the rotating disk 202. The rotation of the rotating disk 202 drives the rotation of the spiral teeth 203. The rotation of the spiral teeth 203 makes the clamping block 205 present a running trajectory of gathering and unfolding. At this time, one end of the clamping block 205 is engaged and slidably connected with the slide groove 204, so that the two ends of the crankshaft are quickly fixed with the center of the rotating disk 202, so that the staff can quickly adjust according to the thickness of the crankshaft, and the adjustment of multiple positions can be achieved through a single operation, making the switching of the crankshaft between different positions easier. The production process is accelerated, and the pause and adjustment time in the production process are reduced, thereby improving the production efficiency. By pulling the insertion rod 210, the push block 211 is driven to move, and the movement of the push block 211 drives the extrusion rod 213 to squeeze the first telescopic spring 214. By loosening the insertion rod 210, the contraction of the first telescopic spring 214 is used to make the insertion rod 210 and the slot 215 engage and fix, and then the adjusted rotating block 207 can be fixed and limited, thereby greatly improving the fixing stability of the clamping block 205 on the crankshaft. Through the design of the rubber pad 216, the crankshaft surface can be rigidly contacted with the clamping block 205 to avoid damage to the crankshaft.

[0032] The rotation of the forward and reverse screw rods 302 is driven by turning the handle 311, and the rotation of the forward and reverse screw rods 302 drives the movement of the movable sleeve 303. At this time, the movable sleeve 303 gathers and expands. When the crankshaft is positioned, the movement of the push plate 306 is driven by pulling the sliding rod 305. The movement of the push plate 306 contracts the contraction rod 308 and the second telescopic spring 309. By loosening the sliding rod 305, and then through the contractility of the second telescopic spring 309, the plug block 307 is engaged and fixed with the forward and reverse screw rods 302, thereby achieving the effect of quickly positioning the crankshaft length. Compared with the prior art method of using powered equipment to drive, it is more energy-efficient and reduces the cost of using the device. The bottom end of the support plate 101 is slidably connected with the limit groove 310, so that the movement of the support plate 101 is more stable. Finally, the rotating motor is started to drive the connecting shaft to rotate, and the connecting shaft drives the clamping mechanism 2 to rotate, thereby achieving the effect of adjusting the surface angle of the fixed crankshaft, which brings convenience to the staff when using it.

[0033] The chassis 102 is used as the second support plate in the prior art. Publication No. CN216029763U discloses a crankshaft grinding and clamping device, and the device used therein will not be described in detail here.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-station fixture for crankshaft grinding, comprising a workbench (1), a support plate (101) being symmetrically mounted on the top of the workbench (1), and a chassis (102) being mounted on one side of the support plate (101); It is characterized in that Also includes: A clamping mechanism (2) is provided on the side of the support plate (101) away from the chassis (102), and an adjusting mechanism (3) is provided inside the workbench (1); The clamping mechanism (2) comprises a mounting plate (201) rotatably connected to one side of the support plate (101), and one side of the mounting plate (201) is rotatably connected to a rotating plate (202), and one side of the rotating plate (202) is fixedly connected to a spiral tooth (203), and one side of the mounting plate (201) is provided with a slide groove (204), and a clamping block (205) is slidably connected inside the slide groove (204), and a side of the clamping block (205) away from the slide groove (204) is threadedly connected to the spiral tooth (203), and one side of the rotating plate (202) is fixedly connected to a first toggle block (206), and one side of the mounting plate (201) is rotatably connected to a rotating block (207), and one end of the rotating block (207) is fixedly connected to a second toggle block (208), and the first toggle block (206) and the second toggle block (208) are cross-slidably connected.

2. The multi-station fixture for crankshaft grinding according to claim 1, characterized in that: The adjusting mechanism (3) comprises a sliding groove (301) provided on the top side of the workbench (1), and a forward and reverse screw rod (302) is rotatably connected inside the sliding groove (301), and movable sleeves (303) are threadedly connected on the outer side walls at both ends of the forward and reverse screw rods (302), and the bottom ends of the support plate (101) and the chassis (102) are fixedly connected to the movable sleeve (303), and a mounting box (304) is fixedly connected to one side of the workbench (1), and one end of the forward and reverse screw rod (302) penetrates the mounting box (304) and is rotatably connected, and one end of the mounting box (304) is slidable inside A slide bar (305) is connected, and one end of the slide bar (305) located inside the installation box (304) is fixedly connected to a push plate (306), and one side of the push plate (306) is symmetrically fixedly connected to an insertion block (307), and the insertion block (307) and the forward and reverse screw rods (302) are engaged and fixedly connected, and a retractable rod (308) is symmetrically fixedly connected between the push plate (306) and the inside of the installation box (304), and a second telescopic spring (309) is sleeved on the outer wall of the retractable rod (308), and the internal connecting shaft of the chassis (102) is fixedly connected to the installation disk (201).

3. The multi-station fixture for crankshaft grinding according to claim 1, characterized in that: A mounting tube (209) is fixedly connected to one side of the mounting plate (201), and an insertion rod (210) is slidably connected inside the mounting tube (209), and a push block (211) is symmetrically fixedly connected to the outer wall of the insertion rod (210), and a limiting tube (212) is symmetrically fixedly connected to one end of the inner part of the mounting tube (209), and an extrusion rod (213) is slidably connected inside one end of the limiting tube (212), and a first telescopic spring (214) is fixedly connected between one end of the extrusion rod (213) and the inside of the limiting tube (212), and a slot (215) is provided on the outer wall of the rotating block (207), and one end of the insertion rod (210) is fixedly connected to the slot (215) by snap-fitting.

4. The multi-station fixture for crankshaft grinding according to claim 2, characterized in that: The top side of the workbench (1) is symmetrically provided with a limiting groove (310), and the bottom end of the support plate (101) is snap-fitted and slidably connected to the limiting groove (310).

5. The multi-station fixture for crankshaft grinding according to claim 1, characterized in that: A rubber pad (216) is fixedly connected to one side of the clamping block (205).

6. The multi-station fixture for crankshaft grinding according to claim 2, characterized in that: One end of the forward and reverse screw rods (302) is fixedly connected to a handle (311).

7. The multi-station fixture for crankshaft grinding according to claim 3, characterized in that: One end of the squeezing rod (213) away from the limiting tube (212) is fixedly connected to the pushing block (211).

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