CN217095737U

CN217095737U - Expansion clamp for workpiece on lathe

Info

Publication number: CN217095737U
Application number: CN202220148076.9U
Authority: CN
Inventors: 施列兵; 李明星
Original assignee: Jiangsu Qianzhu Automation Equipment Research And Development Center Co ltd
Current assignee: Jiangsu Qianzhu Automation Equipment Research And Development Center Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-08-02
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a tight anchor clamps that expand of work piece on lathe relates to work piece positioning fixture field, the movable clamp comprises a roof, the equal fixedly connected with slide bar in the left and right sides of roof lower surface, slide bar middle part sliding connection has the carriage release disc, slide bar bottom fixedly connected with base, threaded connection has the screw rod in the middle of the carriage release disc, the screw rod bottom is rotated and is connected in the middle of the base, carriage release disc and base side install a plurality of tight subassembly that expands jointly, the tight subassembly that expands includes two last rotor plates, go up rotor plate left side fixed connection in carriage release disc side, two rotate between the last rotor plate and be connected with the dwang, dwang side middle part runs through and has seted up the quad slit, the dwang rotates through the quad slit and is connected with the rotor arm, the rotor arm all sets up flutedly with the front and back side of dwang handing-over department, the rotor arm left end front and back side all rotates and is connected with down the rotor plate. The utility model discloses a set up the tight subassembly that expands, can follow the inside of cover class work piece and expand tight centre gripping to it.

Description

Expansion clamp for workpiece on lathe

Technical Field

The utility model relates to a work piece positioning fixture field specifically is a tight anchor clamps that expand of work piece on lathe relates to.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

When clamping the sleeve part, the traditional numerical control lathe clamps the sleeve part by using the clamping jaws from the outer surface. The clamping jaw shields one part of the outer surface of the sleeve part, the processing of the part is influenced, the processing of the complete surface can be realized only by repeatedly clamping, and the reduction of the processing precision is also caused by repeatedly clamping. In order to solve the above problems, it is necessary to provide an expanding clamp for a workpiece on a lathe.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the technical scheme provides the expansion clamp for the workpiece on the lathe, and the technical scheme solves the problem that the traditional numerical control lathe provided in the background technology clamps sleeve parts by using clamping jaws from the outer surfaces when clamping the sleeve parts. The clamping jaw shields one part of the outer surface of the sleeve part, the processing of the part is influenced, the processing of the complete surface can be realized only by repeatedly clamping, and the problem of reduction of the processing precision is also caused by repeatedly clamping.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a tight anchor clamps expand of work piece on lathe, includes the roof, the equal fixedly connected with slide bar in roof lower surface left and right sides, slide bar middle part sliding connection has the carriage release disk, slide bar bottom fixedly connected with base, and threaded connection has the screw rod in the middle of the carriage release disk, and the screw rod bottom is rotated and is connected in the middle of the base, and carriage release disk and base side install a plurality of tight subassembly that expands jointly, and the tight subassembly that expands includes two last rotor plates, goes up rotor plate left side fixed connection in the carriage release disk side, two rotate between the last rotor plate and be connected with the dwang, dwang side middle part runs through and has seted up the quad slit, and the dwang rotates through the quad slit and is connected with the rotor arm, and the front and back side of rotor arm and dwang handing-over department all sets up flutedly, and the rotor arm left end front and back side all rotates and is connected with down rotor plate, lower rotor plate left side fixed connection in the base side.

Preferably, the solid fixed ring of screw rod below fixedly connected with, solid fixed ring front side sliding connection has the anchorage bar, and a plurality of hole has been seted up to the position that the base upper surface is located solid fixed ring below, and the anchorage bar bottom sets up in the hole, and anchorage bar top part has cup jointed reset spring, and reset spring top fixed connection is at the anchorage bar top, and reset spring bottom fixed connection is at solid fixed ring upper surface.

Preferably, the right end of the rotating arm is fixedly connected with a rubber sheet, and the right end of the rotating rod is fixedly connected with a rubber pad.

Preferably, a plurality of through holes are formed in the surface of the top plate in a penetrating mode, the through holes are arranged in a circumferential array mode, and bolts are connected to the through holes in an inner threaded mode.

Preferably, a plurality of the expansion assemblies are arranged at equal intervals on the circumference of the movable disk.

Preferably, the length of the rotating arm is consistent with that of the rotating rod, and the rotating arm and the rotating rod are arranged in an up-and-down symmetrical mode.

Preferably, the diameter of the moving plate is identical to the diameter of the base.

Compared with the prior art, the utility model provides a tight anchor clamps that expand of work piece on lathe possesses following beneficial effect:

1. by arranging the expansion assembly, the sleeve type workpiece can be expanded and clamped from the inside of the sleeve type workpiece through the synergistic effect of the expansion assemblies, so that the sleeve type part is prevented from being clamped by the clamping jaw from the outer surface, the clamping jaw shields one part of the outer surface of the sleeve type part, and the machining of the part is influenced, the machining of the complete surface of the workpiece can be realized at one time, the machining precision is prevented from being reduced, the expansion assembly expands the sleeve type part from multiple directions, the clamping is very firm, and the problem that the workpiece falls off is avoided;

2. through setting up reset spring and hole, can guarantee to the work piece centre gripping back, the screw rod does not take place to rotate, prevents that the rotation of screw rod from leading to the tight subassembly centre gripping work piece that expands to appear not hard up.

Drawings

Fig. 1 is a schematic front perspective view of the present invention;

fig. 2 is a schematic structural view of the expansion assembly of the present invention;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

The reference numbers in the figures are:

101. a top plate; 102. a fixing ring; 103. a through hole; 104. a bolt; 105. a screw; 106. a slide bar; 107. a movable tray; 108. a base; 109. a fastening rod; 110. a hole; 111. a return spring;

200. expanding the assembly; 201. rotating the plate upwards; 202. rotating the rod; 203. a groove; 204. a square hole; 205. a rubber sheet; 206. a lower rotating plate; 207. a rotating arm; 208. and (7) a rubber pad.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-3, an expanding clamp for a workpiece on a lathe comprises a top plate 101, wherein slide rods 106 are fixedly connected to the left side and the right side of the lower surface of the top plate 101, a movable plate 107 is slidably connected to the middle of each slide rod 106, a base 108 is fixedly connected to the bottom end of each slide rod 106, a screw 105 is in threaded connection with the middle of each movable plate 107, the bottom ends of the screw 105 are rotatably connected to the middle of the base 108, a plurality of expanding assemblies 200 are jointly installed on the side surfaces of the movable plate 107 and the base 108, each expanding assembly 200 comprises two upper rotating plates 201, the left sides of the upper rotating plates 201 are fixedly connected to the side surfaces of the movable plates 107, a rotating rod 202 is rotatably connected between the two upper rotating plates 201, a square hole 204 is formed in the middle of the side surface of the rotating rod 202 in a penetrating manner, the rotating rod 202 is rotatably connected with a rotating arm 207 through the square hole 204, grooves 203 are formed in the front side and the rear side of the joint of the rotating arm 207 and the front side of the left end of the rotating arm 206 are rotatably connected with the rotating plate 206, the left side of the lower rotating plate 206 is fixedly connected to the side surface of the base 108;

referring to fig. 1 and 3, first, the fastening rod 109 is pulled out of the hole 110, and the return spring 111 is stretched;

referring to fig. 1 and 2, when the device is used, the device is inserted into a tube cavity of a sleeve workpiece, the expansion assembly 200 is ensured to enter the tube cavity of the sleeve workpiece, the screw 105 is screwed, the moving disc 107 descends along the slide bar 106, so that the upper rotating plate 201 is driven to descend, the rotating rod 202 and the rotating arm 207 can rotate in a matched mode, the right ends of the rotating rod 202 and the rotating arm 207 can be jacked outwards and further jacked against the inner wall of the tube cavity of the sleeve workpiece, and the expansion assemblies 200 can tension the interior of the sleeve workpiece from multiple directions, so that the sleeve workpiece is fixed;

referring to fig. 1 and 3, the fastening rod 109 is loosened, the return spring 111 is contracted, the fastening rod 109 is inserted into the hole 110, and the hole 110 is sufficient enough to ensure the butt joint of the fastening rod 109;

referring to fig. 1, through holes 103 and bolts 104 are used to secure the device in place.

Specifically, the fixed ring 102 is fixedly connected to the lower portion of the screw 105, the fastening ring 102 is slidably connected to the front side of the fastening ring 109, the upper surface of the base 108 is located at the position below the fixed ring 102, a plurality of holes 110 are formed in the position below the fastening ring 102, the bottom end of the fastening rod 109 is arranged in the holes 110, the reset spring 111 is sleeved on the upper portion of the fastening rod 109, the top end of the reset spring 111 is fixedly connected to the top portion of the fastening rod 109, and the bottom end of the reset spring 111 is fixedly connected to the upper surface of the fixed ring 102.

The right end of the rotating arm 207 is fixedly connected with a rubber sheet 205, and the right end of the rotating rod 202 is fixedly connected with a rubber pad 208.

The surface of the top plate 101 is provided with a plurality of through holes 103 in a penetrating manner, the through holes 103 are arranged in a circumferential array, and the through holes 103 are internally threaded with bolts 104.

A plurality of the expansion assemblies 200 are arranged at equal intervals around the circumference of the moving plate 107.

The length of the rotating arm 207 is the same as that of the rotating lever 202, and the rotating arm 207 and the rotating lever 202 are arranged vertically symmetrically.

The diameter of the moving disk 107 coincides with the diameter of the base 108.

The utility model discloses a theory of operation and use flow: by arranging the expansion assembly 200, the sleeve type workpiece can be expanded and clamped from the inside of the sleeve type workpiece through the synergistic effect of the expansion assemblies 200, so that the sleeve type part is prevented from being clamped by the clamping jaw from the outer surface, the clamping jaw shields one part of the outer surface of the sleeve type part, and the processing problem of the part is influenced, the complete surface of the workpiece can be processed at one time, the processing precision is prevented from being reduced, the expansion assembly 200 expands the sleeve type part from multiple directions, the clamping is very firm, and the problem that the workpiece falls off is avoided; through setting up reset spring 111 and hole 110, can guarantee to the back of work piece centre gripping, screw rod 105 does not take place to rotate, prevents that the rotation of screw rod 105 from leading to the tight subassembly 200 centre gripping work piece of expanding to appear becoming flexible.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The expansion clamp for the workpiece on the lathe is characterized by comprising a top plate (101), wherein the left side and the right side of the lower surface of the top plate (101) are fixedly connected with a sliding rod (106), the middle of the sliding rod (106) is connected with a movable disc (107) in a sliding manner, the bottom of the sliding rod (106) is fixedly connected with a base (108), the middle of the movable disc (107) is connected with a screw (105) in a threaded manner, the bottom of the screw (105) is rotatably connected in the middle of the base (108), a plurality of expansion assemblies (200) are jointly installed on the side surfaces of the movable disc (107) and the base (108), each expansion assembly (200) comprises two upper rotating plates (201), the left sides of the upper rotating plates (201) are fixedly connected to the side surface of the movable disc (107), two upper rotating plates (201) are rotatably connected with rotating rods (202), the middle parts of the side surfaces of the rotating rods (202) are provided with square holes (204), and the rotating rods (202) are rotatably connected with rotating arms (207) through the square holes (204), the front side and the rear side of the joint of the rotating arm (207) and the rotating rod (202) are provided with grooves (203), the front side and the rear side of the left end of the rotating arm (207) are rotatably connected with a lower rotating plate (206), and the left side of the lower rotating plate (206) is fixedly connected to the side surface of the base (108).

2. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: screw rod (105) below fixedly connected with solid fixed ring (102), gu fixed ring (102) front side sliding connection has anchorage bar (109), a plurality of hole (110) have been seted up to the position that base (108) upper surface is located solid fixed ring (102) below, anchorage bar (109) bottom sets up in hole (110), anchorage bar (109) top part has cup jointed reset spring (111), reset spring (111) top fixed connection is at anchorage bar (109) top, reset spring (111) bottom fixed connection is at solid fixed ring (102) upper surface.

3. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: the right end of the rotating arm (207) is fixedly connected with a rubber sheet (205), and the right end of the rotating rod (202) is fixedly connected with a rubber pad (208).

4. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: a plurality of through holes (103) are formed in the surface of the top plate (101) in a penetrating mode, the through holes (103) are arranged in a circumferential array mode, and bolts (104) are connected to the inner threads of the through holes (103).

5. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: the expansion assemblies (200) are arranged at equal intervals according to the circumference of the movable disc (107).

6. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: the length of the rotating arm (207) is consistent with that of the rotating rod (202), and the rotating arm (207) and the rotating rod (202) are arranged in an up-and-down symmetrical mode.

7. The expanding clamp for the workpiece on the lathe according to claim 1, wherein: the diameter of the moving disk (107) is consistent with that of the base (108).