CN204954417U - Crankshaft flywheel spot facing work anchor clamps - Google Patents

Abstract

The utility model discloses a clamp for crankshaft flywheel hole processing, which comprises a clamp body, a connecting rod pressing plate and two sets of positioning components arranged on the clamp body, and each set of positioning components includes a first set symmetrically arranged on the upper and lower parts of the clamp body. The V-shaped block and the second V-shaped block, between the first V-shaped block and the second V-shaped block, a supporting seat and a positioning seat are arranged sequentially from top to bottom, and the upper surface of the supporting seat passes through the first grooved cylinder The head screw is provided with a positioning liner, and the end surface of the positioning seat away from the clamp body is connected to the positioning plate through the second slotted cylindrical head screw. The utility model can clamp two crankshafts at one time, and ensure the position and depth of the flywheel hole after processing.

Description

Crankshaft Flywheel Hole Processing Fixture

technical field

The utility model belongs to the field of jigs, in particular to a jig for machining crankshaft flywheel holes.

Background technique

In the process of crankshaft machining, the position and machining depth of the flywheel hole are two very important indicators. Generally, in the process of machining the flywheel hole, a fixture is used to clamp the crankshaft to ensure the machining of the crankshaft. At present, the common crankshaft machining fixture structure is too complicated, the clamping effect is not good, and generally only one crankshaft can be clamped. With the development of the crankshaft processing industry, the commonly used fixtures can no longer meet the actual needs.

Utility model content

The technical problem to be solved by the utility model is to provide a crankshaft flywheel hole processing fixture for the above-mentioned deficiencies in the prior art, which can clamp two crankshafts at one time and ensure the position and depth of the flywheel hole after processing.

The technical solution adopted by the utility model is: a crankshaft flywheel hole processing fixture, including a clamp body, a connecting rod pressure plate and two sets of positioning components arranged on the clamp body, and each set of positioning components includes a set of positioning components symmetrically arranged on the clamp body The first V-shaped block and the second V-shaped block at the upper and lower parts, between the first V-shaped block and the second V-shaped block, a support seat and a positioning seat are arranged in sequence from top to bottom, and the upper surface of the support seat The first slotted cylindrical head screw is provided with a positioning liner, the end surface of the positioning seat away from the clamp body is connected to the positioning plate through the second slotted cylindrical head screw, and one end of the connecting rod pressure plate is fixed by a support nail and The nut is connected to the first V-shaped block of one set of positioning components, the support nail is hinged to the connecting rod pressing plate, and the other end of the connecting rod pressing plate is connected to the other set of positioning components through the joint bolt and the first shoulder nut. The first V-shaped block is connected, and the top of the connecting rod pressing plate is connected with a floating pressing block through a straight pin.

Preferably, the clamp body is connected to the lathe frame through the fourth shoulder nut and the third T-shaped screw.

Preferably, the first V-shaped block, the second V-shaped block and the supporting seat are all connected to the clip body through a third shoulder nut and a second T-shaped screw.

Preferably, the first V-shaped block and the second V-shaped block are also connected to the clamp body through a third slotted cylindrical head screw and a positioning key.

Preferably, cemented carbide pads are provided at the openings of the first V-shaped block and the second V-shaped block.

Preferably, the positioning seat is connected with the clip body through the second shoulder nut and the first T-shaped screw.

The beneficial effect of the utility model lies in that the position and depth of the flywheel hole after processing are ensured through the cooperative use of two sets of positioning components, the connecting rod pressing plate and the floating pressing block. Since there are two sets of positioning components, two crankshafts can be clamped at one time.

Description of drawings

Fig. 1 is a left view of the utility model;

Fig. 2 is a top view of the utility model.

In the figure: 1. Swing bolt; 2. The first shoulder nut; 3. The first slotted cylindrical head screw; 4. Positioning liner; 5. Support seat; 6. The second shoulder nut; 7. The first T-shaped screw; 8, positioning seat; 9, second slotted cylindrical head screw; 10, positioning plate; 11, second T-shaped screw; 12, third shoulder nut; 13, clip body; 14, fourth belt Shoulder nut; 15. The third T-shaped screw; 16. Carbide pad; 17. Support nail; 18. Fixed nut; 19. The first V-shaped block; 20. Connecting rod pressure plate; 21. Floating pressure plate; 22 Straight pin; 23, the third slotted cylinder head screw; 24, positioning key; 25, the second V-shaped block; 26, crankshaft.

detailed description

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1 and Fig. 2, a crankshaft flywheel hole processing jig includes a clamp body 13, a connecting rod pressure plate 20 and two sets of positioning assemblies arranged on the clamp body 13, and each set of positioning assemblies includes symmetrically arranged The first V-shaped block 19 and the second V-shaped block 25 on the upper and lower parts of the clamping body 13, between the first V-shaped block 19 and the second V-shaped block 25 are provided with a support seat 5 and a positioning mechanism in sequence from top to bottom. Seat 8, the upper surface of the support seat 5 is provided with a positioning liner 4 through the first slotted cylindrical head screw 3, and the end surface of the positioning seat 8 away from the clamp body 13 is connected with a positioning liner 4 through the second slotted cylindrical head screw 9. plate 10, one end of the connecting rod pressing plate 20 is connected to the first V-shaped block 19 of one of the positioning components through a supporting nail 17 and a fixing nut 18, the supporting nail 17 is hinged to the connecting rod pressing plate 20, and the connecting rod The other end of the rod pressing plate 20 is connected to the first V-shaped block 19 of another set of positioning components through the swing bolt 1 and the first shoulder nut 2 , and the top of the connecting rod pressing plate 20 is connected with a floating pressing block through a cylindrical pin 22 .

In this embodiment, the clamp body 13 is connected to the lathe frame through the fourth shoulder nut 14 and the third T-shaped screw 15 .

In this embodiment, the first V-shaped block 19 , the second V-shaped block 25 and the supporting seat 5 are all connected to the clip body 13 through the third shoulder nut 12 and the second T-shaped screw 11 .

In this embodiment, the first V-shaped block 19 and the second V-shaped block 25 are also connected to the clip body 13 through the third slotted cylindrical head screw 23 and the positioning key 24 .

In this embodiment, the openings of the first V-shaped block 19 and the second V-shaped block 25 are provided with cemented carbide pads 16 .

In this embodiment, the positioning seat 8 is connected to the clip body 13 through the second shoulder nut 6 and the first T-shaped screw 7 .

This processing fixture can place the crankshaft 26 in the first V-shaped block 19 and the second V-shaped block 25 of the two sets of positioning assemblies at the same time, then support the crankshaft 26 through the support seat 5 and the positioning seat 8, and then pass the connecting rod The pressure plate 20 fixes the crankshaft 26 . Due to the cooperative use of the two sets of positioning components, the connecting rod pressing plate 20 and the floating pressing block, the position and depth of the flywheel hole after processing are guaranteed. Because, positioning assembly is two groups, therefore can once clamp two crankshafts 26.

Claims (6)

1. A crankshaft flywheel hole processing fixture is characterized in that: comprise clamp body (13), connecting rod pressing plate (20) and two groups of locating assemblies that are arranged on the clamp body (13), described each group of locating assemblies all comprises The first V-shaped block (19) and the second V-shaped block (25) symmetrically arranged on the upper and lower parts of the clamp body (13), between the first V-shaped block (19) and the second V-shaped block (25) There are support bases (5) and positioning bases (8) in sequence from top to bottom, and the upper surface of the support base (5) is provided with a positioning liner (4) through the first slotted cylindrical head screw (3). The end surface of the positioning seat (8) away from the clamp body (13) is connected with the positioning plate (10) through the second slotted cylinder head screw (9), and one end of the connecting rod pressing plate (20) is connected with the supporting nail (17) ) and the fixing nut (18) are connected with the first V-shaped block (19) of one of the positioning components, the support nail (17) is hinged with the connecting rod pressing plate (20), and the other of the connecting rod pressing plate (20) One end is connected to the first V-shaped block (19) of another set of positioning components through the joint bolt (1) and the first shoulder nut (2), and the top of the connecting rod pressure plate (20) is connected through a cylindrical pin (22) There are floating blocks. 2. The crankshaft flywheel hole machining jig according to claim 1, characterized in that: the jig body (13) is connected to the lathe frame through a fourth shoulder nut (14) and a third T-shaped screw (15). 3. The crankshaft flywheel hole processing jig according to claim 1 or 2, characterized in that: the first V-shaped block (19), the second V-shaped block (25) and the support seat (5) pass through the third The shoulder nut (12) and the second T-shaped screw (11) are connected with the clip body (13). 4. The crankshaft flywheel hole machining fixture according to claim 3, characterized in that: the first V-shaped block (19) and the second V-shaped block (25) are also passed through the third slotted cylindrical head screw (23) Connect with the clamp body (13) with positioning key (24). 5. The crankshaft flywheel hole machining fixture according to claim 3, characterized in that: hard alloy pads (16) are provided at the openings of the first V-shaped block (19) and the second V-shaped block (25) ). 6. The crankshaft flywheel hole processing fixture according to claim 1 or 2, characterized in that: the positioning seat (8) is connected to the clamp body ( 13) Connect.