CN220971887U

CN220971887U - Machine tool fixture

Info

Publication number: CN220971887U
Application number: CN202322688178.7U
Authority: CN
Inventors: 王少雷; 张丽影; 梁尤宇; 邬海豹; 赵帅峰
Original assignee: Guangdong Ocean University
Current assignee: Guangdong Ocean University
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-05-17
Anticipated expiration: 2033-10-08

Abstract

The utility model discloses a machine tool clamp, which relates to the technical field of machine tool clamps and comprises a clamp chassis, wherein a protection plate is fixed at the front end of the clamp chassis by adopting a screw, a workpiece positioning assembly is arranged on the upper surface of the clamp chassis, and a grinding wheel clamping assembly is arranged above the workpiece positioning assembly; the workpiece positioning assembly comprises an L-shaped seat fixed with the clamp chassis through bolts, and a first positioning strip is fixed on the transverse surface of the L-shaped seat. According to the utility model, grinding wheels with different specifications can be stably fixed from multiple angles, so that the grinding wheels are ensured not to shake or separate during working, and a more stable and accurate processing effect is provided; fixing workpieces with different sizes from multiple angles, and ensuring that the grinding wheel can accurately grind and repair the workpieces; the protection plate can provide good protection measures and observe the processing condition at any time, so that the risk of injury of operators is reduced, and grinding wheel fragments and workpiece materials are prevented from splashing.

Description

Machine tool fixture

Technical Field

The utility model relates to the technical field of machine tool fixtures, in particular to a machine tool fixture.

Background

Machine tool fixtures are an important component of a machining process system, and are a device on a machine tool for clamping a workpiece (and guiding a tool). The function of this is to position the workpiece so that it obtains the correct position relative to the machine and tool and to clamp it reliably.

A machining fixture is a device for fixing and rotating grinding wheels and fixing workpieces in a machine tool (machining center), is generally used for grinding, polishing and finishing the surfaces of the workpieces, and is widely applied to the industrial fields of metal machining, manufacturing, grinding, polishing and the like. Conventional grinding wheel chucks typically consist of a chuck body and a clamping mechanism for securely mounting a grinding wheel to a machine tool, grinding machine or other processing equipment.

However, existing grinding wheel holders have several problems and limitations. First, the design of the grinding wheel holder needs to take the shape, size and machining requirements of the workpiece into consideration, so that when designing the grinding wheel holder, a workpiece fixing device for grinding, polishing and finishing is also designed. Secondly, the design and operation modes of the clamping mechanism may not be flexible enough to adapt to grinding wheels and workpieces of different sizes and types. Furthermore, the structure of the jig body may be unstable and easily loosened, which may cause vibration and instability of the grinding wheel at high rotation speeds. In addition, conventional grinding wheel jigs may require complicated operation steps in clamping and unclamping the grinding wheel, and are not sufficiently safe and efficient. Finally, safety is important in designing and using the grinding wheel clamp, and a protection device should be provided to ensure the safety of operators and avoid accidents.

Therefore, there is a need for a new solution for the field of grinding wheel clamps, providing a grinding wheel clamping device that is more flexible, stable, safe and efficient.

Disclosure of utility model

Based on this, it is an object of the present utility model to provide a machine tool fixture to solve the technical problems set forth in the background above.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the machine tool clamp comprises a clamp chassis, wherein a protection plate is fixed at the front end of the clamp chassis through screws, a workpiece positioning assembly is mounted on the upper surface of the clamp chassis, and a clamp grinding wheel assembly is arranged above the workpiece positioning assembly;

The workpiece positioning assembly comprises an L seat fixed with the clamp chassis through bolts, a first positioning strip is fixed on the transverse surface of the L seat, a pair of second positioning strips are fixed on the edges of two sides of the longitudinal surface of the L seat, a third positioning strip is fixed at one end of the L seat, a pair of screws are arranged on the outer walls of the first positioning strip, the second positioning strip and the third positioning strip, and the tail ends of each pair of screws penetrate through the first positioning strip, the second positioning strip and the third positioning strip;

The sand inclusion wheel subassembly is including the mechanical handle of a knife of being connected with external lathe, the bottom mounting of mechanical handle of a knife has the drill bit pillar, the diaphragm has been cup jointed to the outer wall of drill bit pillar, the both ends rotation of diaphragm are connected with the nut that contacts with the drill bit pillar, the bottom outer wall of drill bit pillar has cup jointed the emery wheel, the below of diaphragm is located the both sides of emery wheel and all is equipped with two sets of clamp that grab, every group grab the top of clamp and be equipped with and run through a pair of clamp strip that grabs to the diaphragm top.

As a preferable technical scheme of the machine tool fixture, a window penetrating through the front surface of the protection plate to the rear surface is formed in the front surface of the protection plate, and transparent glass is arranged in the window.

As a preferable technical scheme of the machine tool fixture, the two ends of the fixture chassis are provided with U-shaped notches, and the U-shaped notches are provided with bolts connected with a machine tool.

As a preferable technical scheme of the machine tool fixture, the handle extending out of the transverse plate is fixed on the inner wall of the clamping strip, a gap is formed at the contact position of the transverse plate, the clamping strip and the handle, the other end of the handle extends into the gap, and a travel groove is formed at the contact position of the transverse plate and the handle.

As a preferable technical scheme of the machine tool fixture, gears are rotationally arranged in the travel grooves, a pair of racks are connected to two sides of the gears in a meshed mode, and the bottom ends of the racks are fixed to the upper surface of a handle on the same side.

As a preferable technical scheme of the machine tool fixture, a guide rod which extends out of the end part of the rack and is fixed with the inner wall of the travel groove is arranged in the rack in a sliding manner, a spring is sleeved on the outer wall of the guide rod, and two ends of the spring are fixed with the travel groove and the rack.

In summary, the utility model has the following advantages:

According to the utility model, grinding wheels with different specifications can be stably fixed from multiple angles, so that the grinding wheels are ensured not to shake or separate during working, and a more stable and accurate processing effect is provided; fixing workpieces with different sizes from multiple angles, and ensuring that the grinding wheel can accurately grind and repair the workpieces; the protection plate can provide good protection measures and observe the processing condition at any time, so that the risk of injury of operators is reduced, and grinding wheel fragments and workpiece materials are prevented from splashing.

According to the utility model, six screws for fixing the workpiece are utilized, and washers with different numbers can be added at the nut for fixing according to the size of the workpiece; the nut for fixing the grinding wheel can be used for fixing the grinding wheel from the upper direction and the lower direction by adding a gasket; the grabbing clamp for fixing the grinding wheel can move through the gear, and the grinding wheel is fixed from four angles through the self-locking function of the gear; four screw connection work piece fixed stay and machining anchor clamps chassis, four U type breach are used for the workstation of fixed machining anchor clamps chassis and machining center, four screw connection protection casing and machining anchor clamps chassis, and removable when protection casing, machining anchor clamps chassis and fixed work piece device are not used are placed.

According to the utility model, by using the workpiece positioning assembly and the grinding wheel clamping assembly, operators can replace the grinding wheel and the workpiece more quickly and conveniently, so that the time is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a block diagram of a workpiece positioning assembly of the present utility model;

FIG. 3 is a block diagram of a sand inclusion wheel assembly of the present utility model;

Fig. 4 is a top view internal structural view of the cross plate of the present utility model.

In the figure: 100. a clamp chassis;

110. a workpiece positioning assembly; 111. an L seat; 112. a first positioning bar; 113. a second positioning strip; 114. a third positioning bar; 115. a screw;

120. Clamping a grinding wheel assembly; 121. a mechanical knife handle; 122. a drill prop; 123. a cross plate; 124. grinding wheel; 125. a grabbing clamp; 126. gripping the clamping strip; 1261. a handle; 127. a nut;

130. a protection plate;

1231. A travel groove; 1232. a notch; 1233. a gear; 1234. a rack; 1235. a guide rod; 1236. and (3) a spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

1-4, A machine tool clamp comprises a clamp chassis 100, wherein a protection plate 130 is fixed at the front end of the clamp chassis 100 by adopting screws, a workpiece positioning assembly 110 is arranged on the upper surface of the clamp chassis 100, and a clamp grinding wheel assembly 120 is arranged above the workpiece positioning assembly 110;

The workpiece positioning assembly 110 comprises an L-shaped seat 111 fixed with the clamp chassis 100 through bolts, a first positioning strip 112 is fixed on the transverse surface of the L-shaped seat 111, a pair of second positioning strips 113 are fixed on the edges of the two sides of the longitudinal surface of the L-shaped seat 111, a third positioning strip 114 is fixed at one end of the L-shaped seat 111, a pair of screws 115 are arranged on the outer walls of the first positioning strip 112, the second positioning strip 113 and the third positioning strip 114, and the tail ends of each pair of screws 115 penetrate through the first positioning strip 112, the second positioning strip 113 and the third positioning strip 114;

The clamping grinding wheel assembly 120 comprises a mechanical knife handle 121 connected with an external machine tool, a drill support column 122 is fixed at the bottom end of the mechanical knife handle 121, a transverse plate 123 is sleeved on the outer wall of the drill support column 122, nuts 127 in contact with the drill support column 122 are rotatably connected at two ends of the transverse plate 123, a grinding wheel 124 is sleeved on the outer wall of the bottom end of the drill support column 122, two groups of clamping clamps 125 are arranged at two sides of the grinding wheel 124 below the transverse plate 123, and a pair of clamping strips 126 penetrating to the upper side of the transverse plate 123 are arranged at the top end of each group of clamping clamps 125;

The inner wall of grabbing clip strip 126 is fixed with the handle 1261 that extends the diaphragm 123 outside, the diaphragm 123 with grab clip strip 126 and handle 1261 contact position department seted up breach 1232, the other end of handle 1261 extends to in breach 1232, the diaphragm 123 with handle 1261 contact position department set up travel groove 1231, travel groove 1231 internal rotation is equipped with gear 1233, the both sides interlock of gear 1233 is connected with a pair of rack 1234, the bottom and the handle 1261 upper surface fixed of homonymy of a pair of rack 1234, slide in the rack 1234 and be equipped with extend rack 1234 tip outside and with travel groove 1231 inner wall fixed guide bar 1235, spring 1236 has been cup jointed to guide bar's outer wall, spring 1236's both ends and travel groove 1231 and rack 1234 are fixed.

When the grinding wheel 124 is installed, an external force is applied to the handle 1261 of any one of the four groups to the side far away from the drill support 122, the rack 1234 on the upper surface of the end part of the handle 1261 moves along with the handle, the compression spring 1236 is linearly moved along the outer wall of the guide rod 1235, meanwhile, the gear 1233 rotates at the top end in the travel groove 1231, the rack 1234 of the other group on the same side drives the handle 1261 to be correspondingly moved, the two groups of clamping clamps 125 are correspondingly moved through the clamping strips 126, the grinding wheel 124 is sleeved on the outer wall of the bottom end of the drill support 122, the external force applied to the handle 1261 is taken out, the rack 1234 is pushed to reset under the left and right of the spring 1236, and the clamping clamps 125 are driven to be relatively close until contacting with the outer wall of the grinding wheel 124, so that the fixing effect of the grinding wheel 125 is completed;

Then, the workpiece is placed on the L seat 111, six groups of screws 115 on the outer walls of the first positioning strip 112, the second positioning strip 113 and the third positioning strip 114 are respectively rotated, the workpieces with different sizes are fixed from three directions, accurate grinding and workpiece trimming of the grinding wheel can be ensured, and the power is provided for the sand inclusion wheel assembly 120 on the machine tool, so that the rotation of the sand inclusion wheel assembly corrects the space.

Referring to fig. 1, a window penetrating to the rear surface is formed on the front surface of the protection plate 130, and transparent glass is installed in the window.

The transparent glass can provide good protection measures and observe the processing condition at any time, so that the risk of injury of operators is reduced, and the conditions of grinding wheel fragments, workpiece material splashing and the like are prevented.

Referring to fig. 1, two ends of the fixture chassis 100 are provided with U-shaped notches, and the U-shaped notches are provided with bolts connected with a machine tool.

The four U-shaped notches are used for fixing the chassis of the machining clamp and a workbench of a machining center.

When the grinding wheel 124 is installed, an external force is applied to the handle 1261 of any one of the four groups to the side far away from the drill support 122, the rack 1234 on the upper surface of the end part of the handle 1261 moves along with the handle, the compression spring 1236 is linearly moved along the outer wall of the guide rod 1235, meanwhile, the gear 1233 rotates at the top end in the travel groove 1231, the rack 1234 of the other group on the same side drives the handle 1261 to move along with the handle, the two groups of the clamping strips 126 are used for moving, the grinding wheel 124 is sleeved on the outer wall of the bottom end of the drill support 122, the external force applied to the handle 1261 is taken out, the rack 1234 is pushed to reset at the left and right sides of the spring 1236, and the clamping strips 125 are driven to be relatively close until contacting with the outer wall of the grinding wheel 124, so that the fixing effect of the grinding wheel 125 is completed;

Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.

Claims

1. A machine tool fixture comprising a fixture chassis (100), characterized in that: the front end of the clamp chassis (100) is fixed with a protection plate (130) by adopting screws, a workpiece positioning assembly (110) is arranged on the upper surface of the clamp chassis (100), and a grinding wheel clamping assembly (120) is arranged above the workpiece positioning assembly (110);

the workpiece positioning assembly (110) comprises an L-shaped seat (111) fixed with the clamp chassis (100) through bolts, a first positioning strip (112) is fixed on the transverse surface of the L-shaped seat (111), a pair of second positioning strips (113) are fixed on the edges of the two sides of the longitudinal surface of the L-shaped seat (111), a third positioning strip (114) is fixed at one end of the L-shaped seat (111), a pair of screws (115) are arranged on the outer walls of the first positioning strip (112), the second positioning strips (113) and the third positioning strips (114), and the tail ends of each pair of screws (115) penetrate through the first positioning strip (112), the second positioning strips (113) and the third positioning strips (114);

The grinding wheel clamping assembly (120) comprises a mechanical cutter handle (121) connected with an external machine tool, a drill bit support column (122) is fixed at the bottom end of the mechanical cutter handle (121), a transverse plate (123) is sleeved on the outer wall of the drill bit support column (122), nuts (127) in contact with the drill bit support column (122) are rotatably connected at the two ends of the transverse plate (123), grinding wheels (124) are sleeved on the outer wall of the bottom end of the drill bit support column (122), two groups of grabbing clips (125) are arranged on the two sides of the grinding wheels (124) below the transverse plate (123), and a pair of grabbing clip strips (126) penetrating through the transverse plate (123) are arranged on the top end of each grabbing clip (125).

2. A machine tool fixture as claimed in claim 1, wherein: the front surface of the protection plate (130) is provided with a window penetrating to the rear surface, and transparent glass is arranged in the window.

3. A machine tool fixture as claimed in claim 1, wherein: u-shaped notches are formed in two ends of the clamp chassis (100), and bolts connected with a machine tool are arranged in the U-shaped notches.

4. A machine tool fixture as claimed in claim 1, wherein: the inner wall of grabbing clip strip (126) is fixed with handle (1261) that extends the diaphragm (123) outside, gap (1232) have been seted up with grabbing clip strip (126) and handle (1261) contact position department to diaphragm (123), in the other end of handle (1261) extends to gap (1232), stroke groove (1231) have been seted up with handle (1261) contact position department to diaphragm (123).

5. A machine tool fixture as claimed in claim 4, wherein: the travel groove (1231) is rotationally provided with a gear (1233), two sides of the gear (1233) are connected with a pair of racks (1234) in a meshed mode, and the bottoms of the racks (1234) are fixed with the upper surface of a handle (1261) on the same side.

6. A machine tool fixture as claimed in claim 5, wherein: the guide rod (1235) which extends out of the end part of the rack (1234) and is fixed with the inner wall of the travel groove (1231) is arranged in the rack (1234) in a sliding mode, a spring (1236) is sleeved on the outer wall of the guide rod (1235), and two ends of the spring (1236) are fixed with the travel groove (1231) and the rack (1234).