CN216178535U

CN216178535U - Center-adjustable fixture mounting structure with high reliability concentricity

Info

Publication number: CN216178535U
Application number: CN202122359559.1U
Authority: CN
Inventors: 张兆祥; 郭祥龙
Original assignee: Nanjing Kangni Precision Mechanics Co ltd
Current assignee: Nanjing Kangni Precision Mechanics Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a clamp mounting structure with high-reliability concentricity and adjustable center, which comprises a clamp seat, an adjusting block, a transition base plate and a fixed seat, wherein the bottom of the transition base plate is matched with the fixed seat in a positioning way, the top of the transition base plate is provided with a cross seat, the bottom of the clamp seat is provided with locking blocks which are uniformly distributed along the circumference and respectively correspond to the outer ends of the cross seat, the adjusting block is clamped between the outer end of the cross seat and the corresponding locking block, and the adjusting block is obliquely matched with the cross seat in a wedge way. The utility model achieves the purposes of reliably eliminating the radial clearance and adjusting the center of the clamp by the inclined wedge matching between the adjusting block and the cross seat, can avoid the radial displacement phenomenon of the clamp in the process of strong cutting machining, meets the machining requirement of high concentricity, effectively improves the machining precision and the production efficiency of workpieces, and has the characteristics of simple structure, convenient assembly and disassembly adjustment, reusability and the like.

Description

Center-adjustable fixture mounting structure with high reliability concentricity

Technical Field

The utility model relates to a clamp mounting structure with high reliability and concentricity and adjustable center, belonging to the technical field of high-precision clamp equipment.

Background

At present, a workpiece clamp is generally pressed by a T-shaped bolt, and in the high-speed powerful cutting machining process, due to the fact that high-strength vibration exists, the eccentric force generated by vibration cannot be effectively overcome by the aid of bolt pressing friction force, the clamp is prone to displacement deviating from the center, and machining precision of parts is affected.

In order to effectively prevent the clamp from generating radial displacement and influencing the part machining precision, the auxiliary radial positioning is generally performed by additionally using a taper pin, but the positioning precision is not high, the positioning precision of 0.01-0.02mm can be guaranteed at most, and meanwhile, because the clamp needs to be disassembled and maintained, the original taper hole can be failed after each disassembly, so that the positioning precision can not be guaranteed.

Therefore, a fixture mounting structure with high reliability and concentricity and adjustable center needs to be designed, the radial movement of the fixture is reliably limited, meanwhile, the fixture mounting structure is convenient to mount and dismount, the fixture can be repeatedly mounted and dismounted for use, and the processing precision and the production efficiency of workpieces are effectively improved.

Disclosure of Invention

The purpose of the utility model is as follows: aiming at the problems in the prior art, the utility model provides the fixture mounting structure with high reliability and concentricity and adjustable center, and the purposes of eliminating radial clearance with high rigidity and adjusting the center of the fixture with high precision are achieved through the inclined wedge matching between the adjusting block and the cross seat, so that the radial displacement of the fixture in the machining process can be effectively prevented, the concentricity of the fixture is ensured, and the machining precision and the production efficiency of workpieces are effectively improved.

The technical scheme is as follows: in order to achieve the purpose, the utility model provides a clamp mounting structure with high-reliability concentricity and adjustable center, which comprises a clamp seat, an adjusting block, a transition base plate and a fixed seat, wherein the bottom of the transition base plate is in positioning fit with the fixed seat, the top of the transition base plate is provided with a cross seat, the bottom of the clamp seat is provided with four locking blocks which are uniformly distributed along the circumference and respectively correspond to the four outer ends of the cross seat one by one, the adjusting block is clamped between the outer end of the cross seat and the corresponding locking block, the radial clearance among the locking block, the adjusting block and the cross seat is eliminated through the inclined wedge fit between the adjusting block and the cross seat, the center position of the clamp seat is adjusted, and the clamp seat, the transition base plate and the fixed seat are locked and fixed through bolt fastening.

The structure limits the radial movement of the clamp in principle, and radial gaps among the locking block, the adjusting block and the cross seat are eliminated through inclined wedge matching between the adjusting block and the cross seat during installation, so that the adjusting block expands the clamp tangentially, the clamp cannot move radially even if a bolt is loosened in the machining process, and the machining precision of a workpiece is guaranteed.

Furthermore, the whole adjusting block is in a concave shape and is in nested fit with the outer end of the cross seat, and the fitting surfaces of the adjusting block and the cross seat are inclined wedge surfaces, so that inclined wedge fit is formed.

Furthermore, two outer ends of the adjusting block are provided with locking screws for matching to realize sliding locking between the adjusting block and the cross seat.

Furthermore, the fixing seat is provided with a positioning hole, the bottom of the transition base plate is provided with a positioning shaft, and the transition base plate and the fixing seat are in positioning fit through butt joint of the positioning shaft and the positioning hole.

Furthermore, the positioning shaft and the positioning hole are in interference fit, so that the positioning precision of the transition base plate is improved.

Furthermore, the clamp seat, the transition base plate and the fixed seat are fastened by T-shaped bolts in a threaded manner.

Has the advantages that: according to the fixture mounting structure with high reliable concentricity and adjustable center, the purposes of eliminating radial clearance with high rigidity and adjusting the center of the fixture with high precision are achieved through the inclined wedge matching between the adjusting block and the cross seat, the radial displacement phenomenon of the fixture in the strong cutting process can be avoided, the machining requirement of high concentricity is met, the machining precision and the production efficiency of a workpiece are effectively improved, and the fixture mounting structure has the characteristics of simple structure, convenience in assembly, disassembly and adjustment, reusability and the like.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a transition pad according to an embodiment of the present invention;

FIG. 3 is a view showing an assembly structure of an adjusting block and a transition shim plate according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of the bottom of the fixture seat in an embodiment of the present invention;

the figure includes: 1. the clamp comprises a clamp seat, 2, an adjusting block, 3, a transition base plate, 4, a T-shaped bolt, 5, a fixed seat, 6, a cross seat, 7, a locking block, 8, a locking screw, 9, a positioning hole, 10 and a positioning shaft.

Detailed Description

The following description of the preferred embodiments of the present invention with reference to the accompanying drawings will more clearly and completely illustrate the technical solutions of the present invention.

Fig. 1 shows a fixture mounting structure with high reliability and concentricity and adjustable center, which comprises a fixture seat 1, an adjusting block 2, a transition pad 3 and a fixing seat 5, wherein the bottom of the transition pad 3 is matched with the fixing seat 5 in a positioning manner. In this embodiment, be equipped with locating hole 9 on fixing base 5, the bottom of transition backing plate 3 is equipped with location axle 10, be interference fit between location axle 10 and the locating hole 9, realize the location fit between transition backing plate 3 and the fixing base 5 from this.

As shown in fig. 2, 3 and 4, the top of the transition backing plate 3 is provided with a cross seat 6, the bottom of the clamp seat 1 is provided with four locking blocks 7 uniformly distributed along the circumference, which are respectively in one-to-one correspondence with the four outer ends of the cross seat 6, the adjusting block 2 is clamped between the outer end of the cross seat 6 and the corresponding locking block 7, the radial gap between the locking block 7, the adjusting block 2 and the cross seat 6 is eliminated through the inclined wedge fit between the adjusting block 2 and the cross seat 6, the central position of the clamp seat 1 is adjusted, and the locking among the clamp seat 1, the transition backing plate 3 and the fixing seat 5 is realized through bolt fastening.

In the embodiment, the whole adjusting block 2 is in a concave shape and is in nested fit with the outer end of the cross seat 6, and the fitting surfaces of the adjusting block 2 and the cross seat 6 are both inclined wedge surfaces, so that inclined wedge fit is formed; two outer ends of the adjusting block 2 are provided with locking screws 8 for matching to realize sliding locking between the adjusting block 2 and the cross seat 6.

Further, transition backing plate 3 wholly is cross structure, and realizes the screw fastening through four T shape bolts 4 between anchor clamps seat 1, transition backing plate 3, the fixing base 5, and T shape bolt 4 passes fixing base 5, transition backing plate 3, anchor clamps seat 1 (including latch segment 7) back through nut and gasket locking by supreme down in proper order promptly.

The specific embodiment of the utility model is as follows:

1) installing a transition base plate: the transition base plate 3 is aligned with the bolt hole on the fixed seat 5, and then the positioning connection is realized through the interference fit between the positioning shaft 10 and the positioning hole 9, so that the radial movement of the transition base plate 3 can be prevented;

2) installing an adjusting block: the adjusting block 2 is in inclined wedge fit with the cross seat 6, and the adjusting block 2 is not locked by the locking screw 8 at the moment;

3) center of the fixture is adjusted and radial clearance is eliminated: the clamp seat 1 is placed on the transition base plate 3, the T-shaped bolt 4 is installed, the locking blocks 7 respectively clamp the corresponding adjusting blocks 2, radial gaps among the locking blocks 7, the adjusting blocks 2 and the cross seat 6 can be eliminated through sliding adjustment of the adjusting blocks 2 along the inclined wedge surfaces, and the concentricity of the clamp seat 1 and the fixed seat 5 is guaranteed (the concentricity can be detected through an instrument);

4) locking a clamp: after the sliding adjustment of the adjusting block 2 is completed, the position of the adjusting block 2 is locked by the locking screw 8, and the T-shaped bolt 4 is screwed, so that the clamp is installed.

The utility model realizes the purposes of eliminating radial clearance with high rigidity and adjusting the center of the clamp with high precision by utilizing the inclined wedge structure, and can effectively prevent the radial displacement of the clamp in the processing process, thereby improving the processing precision and the production efficiency of workpieces.

The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the utility model. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a have high reliable concentricity and center adjustable anchor clamps mounting structure, a serial communication port, including anchor clamps seat (1), adjusting block (2), transition backing plate (3), fixing base (5), the bottom and fixing base (5) location fit of transition backing plate (3), its top is equipped with cross seat (6), the bottom of anchor clamps seat (1) is equipped with along four latch segment (7) of circumference equipartition, and is corresponding with four outer ends of cross seat (6) respectively, adjusting block (2) press from both sides tightly in cross seat (6) outer end and correspond between latch segment (7), carve the cooperation through inclining between adjusting block (2) and cross seat (6) and eliminate the radial clearance between latch segment (7), adjusting block (2), cross seat (6) to adjust the central point of anchor clamps seat (1) and put, and then realize anchor clamps seat (1) through bolt-up, The transition base plate (3) and the fixed seat (5) are locked and fixed.

2. The fixture mounting structure with high reliable concentricity and adjustable center according to claim 1, wherein the adjusting block (2) is concave and is nested with the outer end of the cross seat (6), and the matching surfaces of the adjusting block (2) and the cross seat (6) are inclined wedge surfaces, so that inclined wedge matching is formed.

3. The clamp mounting structure with high reliable concentricity and adjustable center as claimed in claim 2, wherein the two outer ends of the adjusting block (2) are provided with locking screws (8) for realizing sliding locking between the adjusting block (2) and the cross-shaped seat (6) in a matching way.

4. The fixture mounting structure with high reliability and concentricity and adjustable center as claimed in claim 1, wherein the fixing seat (5) is provided with a positioning hole (9), the bottom of the transition pad (3) is provided with a positioning shaft (10), and the transition pad (3) and the fixing seat (5) are matched in a positioning way by butting the positioning shaft (10) and the positioning hole (9).

5. The clamp mounting structure with high reliable concentricity and adjustable center as claimed in claim 4, wherein the locating shaft (10) and the locating hole (9) are in interference fit.

6. The fixture mounting structure with high reliable concentricity and adjustable center according to claim 1, wherein the fixture seat (1), the transition base plate (3) and the fixed seat (5) are fastened by a T-shaped bolt (4) in a threaded manner.