CN110744327A

CN110744327A - Machining clamp for cavity type casting parts

Info

Publication number: CN110744327A
Application number: CN201911017891.0A
Authority: CN
Inventors: 黄浩瑞; 刘燕
Original assignee: 黄浩瑞
Current assignee: Yantai modeteco mechanical fixture Co.,Ltd.
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-02-04
Anticipated expiration: 2039-10-24
Also published as: CN110744327B

Abstract

The invention discloses a die cavity type casting part machining clamp, which relates to the technical field of mechanical clamp production and machining and comprises a base and a bidirectional bolt, wherein the base is of a workbench structure, support columns are symmetrically arranged on two sides of the lower end of the base, a rack is fixed at the top end of the base, the rack is of a U-shaped structure with a downward opening, a hydraulic cylinder is fixed at the center of the inner wall of the top end of the rack, a piston rod extends out of the lower end of the hydraulic cylinder, a drive plate is fixed at the bottom end of the piston rod, and a plurality of clamping devices are arranged at the bottom end of the. According to the invention, the opposite surfaces of the supporting plates are provided with the internal clamping devices, the two-way bolts are arranged on the outer sides of the connecting lug plates, the other ends of the two-way bolts are provided with the first clamping plate, so that the two-way bolts can be adjusted to clamp the inner walls of the parts by the clamping plates while the internal clamping devices clamp the inner convex columns of the parts, and the stability of clamping the parts is improved.

Description

Machining clamp for cavity type casting parts

Technical Field

The invention relates to the technical field of mechanical fixture production and processing, in particular to a machining fixture for cavity type casting parts.

Background

After a mechanical part is formed, a series of subsequent processing needs to be performed, such as grinding and polishing, anticorrosive and antirust spraying, detection and inspection, etc., in the manufacturing process, a device used for fixing a processing object to enable the processing object to occupy a correct position so as to receive construction or detection is generally called a clamp, also called a fixture, in a broad sense, any procedure in the process of manufacturing, inspecting or maintaining a workpiece is used for quickly, conveniently and safely installing the workpiece, and called a clamp.

Currently, patent No. CN201610684399.9 discloses a component fixing device, which includes a bottom plate, a fixed fixture block, a movable fixture block and a pushing device, wherein the bottom plate is in a strip shape, the fixed fixture block is fixed at one end of the bottom plate, two sides of the bottom plate are both provided with sliding slots along the length direction of the bottom plate, the movable fixture block is provided with two sliding blocks respectively matched with different sliding slots, a matching surface formed by the side surface of the sliding slot and the bottom surface of the sliding block is an arc surface, and in the depth direction of the sliding slot, the highest point of the arc surface is located between the opening end of the sliding slot and the bottom end of the; two sliding chutes are arranged on each side of the bottom plate, and the two sliding chutes positioned on the same side of the bottom plate are respectively positioned at the upper end and the lower end of the bottom plate; the widths of the upper end and the lower end of the bottom plate are different, and the fixed clamping block and the pushing device are connected with the bottom plate in a detachable mode. When the structure is used for clamping parts, the stress uniformity of each point on the clamping surface is facilitated, the stability of the relative positions of the fixed clamping block and the movable clamping block is facilitated, and meanwhile, the service life is long.

The fixing device for parts described in the above still has some technical defects in practical use, and the specific technical defects are as follows:

firstly, current, when to large-scale die cavity class part centre gripping, press from both sides tightly from the outside more, can't accomplish to the part inner wall centre gripping simultaneously to the centre gripping of inside projection, lead to the fixed effect of part poor.

When the existing clamp is contacted with a part, the clamp cannot automatically return due to the fact that the clamp inclines, so that the position precision of the clamp for clamping the part is inaccurate, and the later-stage processing technology of the part is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a cavity type casting part machining clamp, which solves the problems that when a large-sized cavity type part is clamped, the clamping is mostly carried out from the outside, the inner wall of the part cannot be clamped and an inner convex column cannot be clamped simultaneously, so that the fixing effect of the part is poor, and the problems that when the existing clamp is contacted with the part, the position precision of the part clamped by the clamp is inaccurate and the later-stage machining process of the part is influenced because the clamp inclines and cannot automatically return to the original position are solved.

The technical problem to be solved by the invention is realized by adopting the following technical scheme that the machining clamp for the cavity type casting parts comprises a base and a bidirectional bolt, wherein the base is arranged into a workbench structure, supporting columns are symmetrically arranged on two sides of the lower end of the base, a rack is fixed at the top end of the base, the rack is of a U-shaped structure with a downward opening, a hydraulic cylinder is fixed at the center of the inner wall of the top end of the rack, a piston rod extends out of the lower end of the hydraulic cylinder, a driving plate is fixed at the bottom end of the piston rod, a plurality of clamping devices are arranged at the bottom end of the driving plate, the clamping devices are fixed at the bottom end of the driving plate at equal intervals, and the;

each clamping device comprises a driving rod and a supporting plate, the driving rod is fixed at the bottom end of the driving plate, a sleeve is fixed at the bottom end of the driving rod, first connecting rods are symmetrically hinged to the outer wall of the sleeve, second connecting rods are hinged to the bottom end of each first connecting rod, connecting lug plates are hinged to the hinged positions of the first connecting rods and the second connecting rods, the bottom ends of the second connecting rods on two sides are symmetrically hinged to the front end and the rear end of a fixing plate, the fixing plates are installed on a fixing frame at equal intervals, the two ends of the fixing frame are fixed on the inner walls on two sides of a rack, a V-shaped rod is hinged to the bottom end of each second connecting rod, a hinged support is hinged to the bottom;

the two supporting plates are symmetrically arranged, the supporting plates are vertically arranged below the fixed plate, the opposite surfaces of the supporting plates are fixed with internal clamping devices at equal intervals, tension springs are fixed at the top ends of the supporting plates, sliding blocks are fixed at the top ends of the tension springs, sliding grooves are formed in the bottom ends of the fixed plate, the top ends of the sliding blocks are embedded into the sliding grooves of the fixed plate in a sliding fit mode, linkage rods are hinged to the bottom ends of the sliding blocks, and the other ends of the linkage rods are hinged to the inner side wall of the V-shaped rod;

both sides connect otic placode lateral surface set up threaded hole, connect the threaded hole of otic placode and install two-way bolt, every two-way bolt's the grip block one is installed to the other end, grip block one is square block structure, every one side the back of grip block one, and the upper and lower bilateral symmetry that is located and connects the otic placode is equipped with the pressure spring, and the pressure spring other end that is located and connects the otic placode top is fixed with connecting rod one, and the pressure spring other end that is located and connects the otic placode below is fixed with connecting rod two.

Furthermore, in order to facilitate the tightening of the convex columns with different inner outer diameters of the parts, each inner clamping device comprises a plurality of bolts and a plurality of supporting blocks, one end of each supporting block is fixed on a clamping surface of the supporting plate, the other end of each supporting block is fixedly connected with a second clamping plate, the second clamping plate is of a square block structure, threaded holes which are communicated with each other are formed in the second clamping plate at equal intervals in the horizontal direction, and the bolts are installed in the threaded holes;

two opposite surfaces of the two clamping plates II which are symmetrically arranged are provided with rubber blocks II which are structurally matched with the clamping plates II, the back surfaces of the rubber blocks II are provided with a plurality of step holes with circular structures, and the bottom end of each bolt is embedded into the step holes in a sliding fit mode.

Furthermore, in order to adjust the distance between the supporting plates, a two-way screw rod is hinged between the V-shaped rod and the second connecting rod.

Furthermore, in order to increase the friction force and improve the clamping force on the part, a first rubber block matched with the structure of the clamping plate is fixed on the clamping surface of each first clamping plate.

Furthermore, in order to improve the tightness of the adhesion of the second rubber block and the clamping surface of the part and improve the clamping force on the part, a plurality of magnet sheets are embedded in the second rubber block and are distributed in the second rubber block at equal intervals.

Further, in order to fix the fixing plate and improve the stability of the clamping device, the fixing frame is of a cuboid structure.

Compared with the prior art, the invention at least comprises the following beneficial effects:

the opposite surfaces of the supporting plates are provided with internal clamping devices, the outer sides of the connecting lug plates are provided with bidirectional bolts, the other ends of the bidirectional bolts are provided with first clamping plates, and when the internal clamping devices clamp the internal convex columns of the parts, the bidirectional bolts are adjusted to clamp the inner walls of the parts, so that the stability of clamping the parts is improved.

And the back of the first clamping plate is symmetrically provided with pressure springs at the upper side and the lower side of the connecting lug plate, so that the first clamping plate is prevented from inclining before clamping a part, a tension spring is connected between the supporting plate and the sliding block, the second clamping plate is prevented from inclining before clamping the part, and the accuracy of the position of clamping the part by the clamp is improved.

The connecting lug plate and the clamping plate I are connected through the bidirectional bolt, so that the contact tightness between the clamping plate I and the part can be conveniently adjusted again, and the stability of clamping the part is improved.

The clamping devices are arranged at the lower end of the driving plate, and the driving plate moves to drive the clamping devices to simultaneously clamp a plurality of parts, so that the working efficiency is improved.

And fifthly, the contour structure of the second rubber block is adjusted through the bolt, so that the second rubber block deforms according to the surface contour structure of the convex column, the second rubber block is attached to the surface of the convex column more tightly, and the air on the surfaces of the second rubber block and the convex column is extruded out by applying extrusion pressure on the back of the second rubber block, so that the second rubber block is attached to the surface of the convex column tightly, and the clamping firmness of the second rubber block to cavity parts is improved.

Sixthly, because a plurality of convex columns are different in outer diameter, each internal clamping device is tightly attached to each convex column through independent adjustment, and the stability of part clamping is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of a machining fixture for cavity type casting parts according to the present invention;

FIG. 2 is a schematic view of the overall structure of the clamping device of the present invention;

FIG. 3 is a schematic view of a portion of FIG. 2 in the direction A;

FIG. 4 is a schematic view of the structure of FIG. 2 taken along the direction B;

FIG. 5 is a schematic structural view of a second rubber block of the present invention after deformation;

FIG. 6 is a schematic view of a connection structure of a supporting block and a second clamping plate according to the present invention;

FIG. 7 is a schematic structural view of a clamping device and a cavity part;

in the figure: 1. the device comprises a frame, 2, a hydraulic cylinder, 3, a piston rod, 4, a driving plate, 5, a fixing frame, 6, a base, 7, a supporting column, 8, a clamping device, 801, a driving rod, 802, a sleeve, 803, a first connecting rod, 8041, a first rubber block, 8042, a first clamping plate, 8043, a pressure spring, 8044, a two-way bolt, 8045, a connecting lug plate, 805, a fixing plate, 806, a threaded telescopic rod, 807 and a V-shaped rod, 808, a hinged support, 809, a supporting plate, 810, a sliding block, 811, a linkage rod, 812, a tension spring, 813, an internal clamping device, 8131, a second rubber block, 8132, a magnet piece, 8133, a second clamping plate, 8134, a bolt, 8135, a supporting block, 814 and a second connecting rod.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific figures.

It will be understood that when an element is referred to as being "secured to" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.

Please refer to fig. 1-7, which is a mold cavity type casting part machining clamp, including a base 6 and a bidirectional bolt 8044, the base 6 is set as a workbench structure, support columns 7 are symmetrically arranged on two sides of the lower end of the base 6, a frame 1 is fixed on the top end of the base 6, the frame 1 is a U-shaped structure with a downward opening, a hydraulic cylinder 2 is fixed on the center of the inner wall of the top end of the frame 1, a piston rod 3 extends out of the lower end of the hydraulic cylinder 2, a drive plate 4 is fixed on the bottom end of the piston rod 3, a plurality of clamping devices 8 are arranged on the bottom end of the drive plate 4, the clamping devices 8 are fixed on the bottom end of the drive.

According to the invention, the plurality of clamping devices 8 are arranged at the lower end of the drive plate 4, and the plurality of clamping devices 8 are driven to simultaneously clamp a plurality of parts through the movement of the drive plate 4, so that the working efficiency is improved.

Each clamping device 8 comprises a driving rod 801 and a supporting plate 809, the driving rod 801 is fixed at the bottom end of the driving plate 4, a sleeve 802 is fixed at the bottom end of the driving rod 801, first connecting rods 803 are symmetrically hinged to the outer wall of the sleeve 802, second connecting rods 814 are hinged to the bottom end of each first connecting rod 803, connecting ear plates 8045 are hinged to the hinged positions of the first connecting rods 803 and the second connecting rods 814, the bottom ends of the second connecting rods 814 at two sides are symmetrically hinged to the front end and the rear end of a fixing plate 805, the fixing plates 805 are installed on the fixing frame 5 at equal intervals, the fixing plate 805 is fixed on the front side face of the fixing frame 5, two ends of the fixing frame 5 are fixed on the inner walls at two sides of the rack 1, a V-shaped rod 807 is hinged to the.

The two supporting plates 809 are symmetrically arranged, the supporting plates 809 are vertically arranged below the fixed plate 805, the opposite surfaces of the supporting plates 809 are fixed with internal clamping devices 813 at equal intervals, the top end of each supporting plate 809 is fixed with a tension spring 812, the tension springs 812 enable the supporting plates 809 to be in a vertical state before working, the precision of clamping parts by the clamp is improved, the top end of each tension spring 812 is fixed with a sliding block 810, the bottom end of the fixed plate 805 is provided with a sliding groove, the sliding grooves are in the left and right horizontal directions, the top end of each sliding block 810 is embedded in the sliding grooves of the fixed plate 805 in a sliding fit mode, the bottom end of each sliding block 810 is hinged with a linkage rod 811, the other end of each linkage rod 811 is hinged on the inner, when the V-shaped rod 807 rotates to drive the linkage rod 811 to move, the linkage rod 811 moves to push the slider 810 to move horizontally at the bottom end of the fixed plate 805, so that the slider 810 and the support plate 809 are kept collinear in the vertical direction.

Threaded holes are formed in the outer side faces of the connecting lug plates 8045 on two sides, two-way bolts 8044 are mounted in the threaded holes of the connecting lug plates 8045, a first clamping plate 8042 is mounted at the other end of each two-way bolt 8044, the first clamping plate 8042 is of a square block structure, threaded holes meshed with the two-way bolts 8044 are formed in the back face of the first clamping plate 8042, the distance between the first clamping plate 8042 and the connecting lug plates 8045 is adjusted through the two-way bolts 8044, compression springs 8043 are symmetrically arranged on the upper side and the lower side of the connecting lug plates 8045 on the back of the first clamping plate 8042 on each side, the compression springs 8043 enable the first clamping plate 8042 to return to the vertical state before working, the accuracy of clamping parts of the clamp is improved, the other end of the compression spring 8043 above the connecting lug plates 8045 is fixed with the first connecting rod 803, and the other end of the compression spring.

An internal clamping device 813 is arranged on the opposite surface of a support plate 809, a bidirectional bolt 8044 is arranged on the outer side of a connecting lug plate 8045, a first clamping plate 8042 is arranged at the other end of the bidirectional bolt 8044, and when the internal clamping device 813 clamps a convex column in a part, the bidirectional bolt 8044 is adjusted to enable the first clamping plate 8042 to clamp the inner wall of the part, so that the stability of clamping the part is improved.

According to the invention, the pressure springs 8043 are symmetrically arranged on the back of the first clamping plate 8042 and positioned on the upper side and the lower side of the connecting lug plate 8045, so that the first clamping plate 8042 is prevented from inclining in front of a clamped part, the tension spring 812 is connected between the supporting plate 809 and the slider 810, the second clamping plate 8133 is prevented from inclining in front of the clamped part, and the accuracy of the position of the part clamped by the clamp is improved.

The connecting lug plate 8045 is connected with the clamping plate 8042 by the bidirectional bolt 8044, so that the contact tightness between the clamping plate 8042 and a part can be conveniently adjusted again, and the stability of clamping the part is improved.

Every inside clamping device 813 includes bolt 8134 and supporting shoe 8135, and supporting shoe 8135 is provided with a plurality ofly, and every supporting shoe 8135 one end is fixed in the clamping face of backup pad 809, and every supporting shoe 8135's the two 8133 of other end fixedly connected with grip block, grip block two 8133 are square block structure, and the threaded hole that link up is seted up to grip block two 8133 equidistance in the horizontal direction, and the threaded hole is installed bolt 8134.

Two 8131 of the two 8133 opposites of two grip blocks that the symmetry set up are equipped with the two 8133 structure assorted rubber blocks, the two 8131 increase of rubber block and the frictional force when part centre gripping, improve the clamp force to the part, the two 8131 of rubber block is easy to take place deformation simultaneously, conveniently adjust the two 8131 of rubber block and closely laminate with the projection surface that the appearance is different, improve the stability to the part centre gripping, the step hole of a plurality of circular structures is seted up to the back of rubber block two 8131, the bottom of every bolt 8134 is embedded into the step hole through the sliding fit mode, adjust like adding the distance of two 8131 of block and grip block 8133 through rotating bolt 8134.

Wherein, in order to facilitate the tightening of the convex column with different inner and outer diameters of the part, the outer ring is tightly attached with the adjusting bolt 8134, the problem of clamping the inner part of the part is solved, because the outer diameters of the plurality of convex columns are different, each inner clamping device 813 is tightly attached with each convex column by independently adjusting, and simultaneously, the outer shapes of the convex columns are different, when the clamping surfaces of the convex columns are circular, the bending structures shown in the figures from the rubber block II 8133 to the figure 5 are adjusted, namely, different adjustments are carried out according to the different outer shapes of the clamping surfaces of the convex columns, so that the rubber block II 8133 is tightly attached with the convex columns, and the stability of clamping the part is improved.

Two-way screw 806 is hinged between the V-shaped rod 807 and the second connecting rod 814, the upper end and the lower end of the two-way screw 806 are adjusted in a telescopic mode, the included angle between the V-shaped rod 807 and the second connecting rod 814 is changed, the distance between the two supporting plates 809 is adjusted twice according to the size of the inner convex column of the part, and the inner clamping device 813 is convenient to clamp the convex column.

A rubber block 8041 matched with the structure of the clamping plate 8042 is fixed on the clamping surface of each clamping plate 8042, and the rubber block 8041 increases the friction force contacted with a part and improves the force applied to the part.

The magnet 8132 is embedded in the rubber block II 8131, and a plurality of the magnet 8132 are arranged and distributed at equal intervals in the rubber block II 8131.

The magnet piece 8132 and the metal convex column generate attraction, the tightness of the fit between the rubber block II 8131 and a part clamping surface is improved, the clamping force between the rubber block II 8131 and the part is increased, and the stability of clamping the part is improved.

The fixing frame 5 is of a cuboid structure, so that a fixing plate is convenient to fix, and the stability of the clamping device is improved.

The working principle is as follows: when the machining clamp for the die cavity type cast parts is used, firstly, the distance between two support plates 809 is adjusted through a bidirectional bolt 806 according to the size of a convex column inside the part, so that a rubber block I8041 and an internal clamping device 813 simultaneously contact the part, secondly, the driving plate 4 is adjusted by a hydraulic cylinder 2 to move up and down in the vertical direction to drive a driving rod 801 to move up and down, the driving rod 801 moves up and down to drive a sleeve 802 to move up and down, the sleeve 802 pushes a connecting lug plate 8045 to be unfolded towards two sides through a connecting rod I803 and a connecting rod II 814, so that the rubber block I8041 contacts with the inner wall of a die cavity of the part, then the connecting rod II 814 is hinged with a V-shaped rod 807, the connecting rod II 814 is locked and connected through threaded telescopic rods 806 on two sides, the connecting rod II 814 swings to push the V-shaped rod 807 to perform clamping movement, so that the internal clamping device 813 inside the inner wall of the support plates 809, and the first clamping plate 8042 and the internal clamping device 813 are adjusted to move in a coordinated manner, so that the workpieces of the first clamping plate 8042 and the internal clamping device 813 synchronously contact and clamp, and the stable clamping of the machining clamp for the cavity type casting parts to the parts can be realized.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a die cavity class casting spare part machining anchor clamps, includes base (6) and two-way bolt (8044), its characterized in that: the base (6) is arranged to be of a workbench structure, support columns (7) are symmetrically arranged on two sides of the lower end of the base (6), a rack (1) is fixed to the top end of the base (6), the rack (1) is of a U-shaped structure with a downward opening, a hydraulic cylinder (2) is fixed to the center of the inner wall of the top end of the rack (1), a piston rod (3) extends out of the lower end of the hydraulic cylinder (2), a drive plate (4) is fixed to the bottom end of the piston rod (3), a plurality of clamping devices (8) are arranged at the bottom end of the drive plate (4), the clamping devices (8) are fixed to the bottom end of the drive plate (4) at equal intervals, and the clamping devices (8);

each clamping device (8) comprises a driving rod (801) and a supporting plate (809), the driving rod (801) is fixed at the bottom end of the driving plate (4), a sleeve (802) is fixed at the bottom end of the driving rod (801), a first connecting rod (803) is symmetrically hinged to the outer wall of the sleeve (802), a second connecting rod (814) is hinged to the bottom end of each first connecting rod (803), a connecting lug plate (8045) is hinged to the hinged position of each first connecting rod (803) and the second connecting rod (814), the bottom ends of the second connecting rods (814) on two sides are symmetrically hinged to the front end and the rear end of a fixing plate (805), the fixing plates (805) are installed on a fixing frame (5) at equal intervals, the fixing plates (805) are fixed on the front side face of the fixing frame (5), the two ends of the fixing frame (5) are fixed on the inner walls on two sides of a rack (1), and the bottom end, the bottom end of each V-shaped rod (807) is hinged with a hinged support (808), and the hinged supports (808) are fixed on the back of a support plate (809);

the two supporting plates (809) are symmetrically arranged, the supporting plates (809) are vertically arranged below the fixed plate (805), internal clamping devices (813) are fixed on opposite surfaces of the supporting plates (809) at equal intervals, tension springs (812) are fixed at the top end of each supporting plate (809), a sliding block (810) is fixed at the top end of each tension spring (812), a sliding groove is formed in the bottom end of the fixed plate (805), the top end of each sliding block (810) is embedded into the sliding groove of the fixed plate (805) in a sliding fit mode, a linkage rod (811) is hinged to the bottom end of each sliding block (810), and the other end of each linkage rod (811) is hinged to the inner side wall of the V-shaped rod (807);

both sides connect otic placode (8045) lateral surface set up threaded hole, connect the threaded hole of otic placode (8045) and install two-way bolt (8044), every the grip block (8042) is installed to the other end of two-way bolt (8044), grip block (8042) are square block structure, just the screw hole that meshes mutually with two-way bolt (8044) is seted up at the back of grip block (8042), each side the back of grip block (8042), and the upper and lower bilateral symmetry that is located connection otic placode (8045) are equipped with pressure spring (8043), and the pressure spring (8043) other end that is located connection otic placode (8045) top is fixed with connecting rod (803), and the pressure spring (8043) other end that is located connection otic placode (8045) below is fixed with connecting rod two (814).

2. The mold cavity type casting part machining clamp according to claim 1, characterized in that: each internal clamping device (813) comprises a bolt (8134) and a plurality of supporting blocks (8135), one end of each supporting block (8135) is fixed on a clamping surface of a supporting plate (809), the other end of each supporting block (8135) is fixedly connected with a second clamping plate (8133), each second clamping plate (8133) is of a square block structure, penetrating threaded holes are formed in the second clamping plates (8133) at equal intervals in the horizontal direction, and bolts (8134) are installed in the threaded holes;

two that the symmetry set up the opposite face of grip block two (8133) is equipped with two (8131) with grip block two (8133) structure assorted rubber block, the step hole of a plurality of circular structures is seted up at the back of rubber block two (8131), every the bottom of bolt (8134) is embedded in the step hole through sliding fit.

3. The mold cavity type casting part machining clamp according to claim 1, characterized in that: a bidirectional screw (806) is hinged between the V-shaped rod (807) and the second connecting rod (814).

4. The mold cavity type casting part machining clamp according to claim 1, characterized in that: and a first rubber block (8041) matched with the structure of the first clamping plate (8042) is fixed on the clamping surface of each first clamping plate (8042).

5. The mold cavity type casting part machining clamp according to claim 2, characterized in that: the magnet pieces (8132) are embedded into the rubber block II (8131), the magnet pieces (8132) are arranged in a plurality, and the magnet pieces are distributed in the rubber block II (8131) at equal intervals.

6. The mold cavity type casting part machining clamp according to claim 1, characterized in that: the fixing frame (5) is of a cuboid structure.