Precise positioning clamp for precision part machining

Abstract

The utility model belongs to the technical field of precision part machining, and discloses a precision positioning clamp for precision part machining, which comprises a base, an L-shaped fixing plate is mounted on the upper surface of the base, a motor is arranged on the inner side wall of the L-shaped fixing plate, and a positioning mechanism for positioning the moving position of a precision part is mounted on an output shaft of the motor. A supporting mechanism for supporting the positioning mechanism is arranged in the positioning mechanism, and a motor is started to drive the positioning mechanism to clamp the precise part at the outer end or in the positioning mechanism, so that the subsequent positioning mechanism can clamp and sleeve the precise parts with different models and volumes in the use process, and the positioning precision is improved; therefore, the positioning range of the device in the subsequent use process is expanded; and the supporting mechanism is used for supporting the position of the small precision part in the positioning mechanism, so that a subsequent worker does not need to manually support the precision part in the process of positioning the precision part by using the positioning mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of precision part processing, and particularly relates to a precision positioning fixture for precision part processing. Background Technique

[0002] Part processing refers to the process of changing the external dimensions or performance of a workpiece through a part device. It can be divided into cutting processing and pressure processing according to the difference in processing methods. When formulating the part processing technological process, when processing precision parts, it is necessary to perform positioning and clamping operations on the parts.

[0003] For example, the utility model with the publication number CN215699787U discloses a precision positioning fixture for precision part processing, including a base. A bearing seat is arranged on the top of the base. A rotating rod is rotatably connected to the top of the bearing seat. A cylindrical barrel is arranged at the top of the rotating rod. The top and bottom of the cylindrical barrel are both provided with first bearings through holes. A plurality of groups of grooves are arranged in a circumferential array through the middle position of the surface of the cylindrical barrel. An arc-shaped plate located in the groove is fixedly connected to the inner wall of the cylindrical barrel. A positioning component is arranged inside the cylindrical barrel. The positioning component includes a first lead screw connected to the first bearing. A first threaded sleeve is sleeved on one end of the first lead screw. A plurality of sleeves are arranged around the circumference of the first threaded sleeve. By using the cylindrical barrel, the arc-shaped plate and the positioning component, it has the function of positioning gears with different inner diameters to prevent them from shaking, without having to replace the corresponding positioning fixture according to gears with different inner diameters, thereby reducing the working procedures and improving the working efficiency.

[0004] In the process of implementing the present application, it is found that this technology has the following problems: The existing precision positioning fixture for precision part processing can only sleeved the precision part on the outer end of the positioning mechanism during use, making it impossible for subsequent workers to use this device to position the precision part when processing the inner wall of the precision part. Therefore, the practicability of this device is reduced.

[0005] Therefore, a precision positioning fixture for precision part processing is proposed. Content of the Utility Model

[0006] The purpose of the present utility model is to solve the problem that the existing precision positioning fixture for precision part processing can only sleeved the precision part on the outer end of the positioning mechanism during use, making it impossible for subsequent workers to use this device to position the precision part when processing the inner wall of the precision part. The present utility model provides a precision positioning fixture for precision part processing.

[0007] The present utility model specifically adopts the following technical solutions to achieve the above purpose:

[0008] A precision positioning fixture for precision part processing, including a base, on the upper surface of the base is installed an L-shaped fixing plate, on the inner side wall of the L-shaped fixing plate is provided a motor, and the output shaft of the motor is installed with a positioning mechanism for positioning the moving position of the precision part, and inside the positioning mechanism is provided a support mechanism for supporting inside the positioning mechanism.

[0009] Further, the positioning mechanism includes a connecting rod and a support plate. The connecting rod is installed on the output shaft of the motor, the support plate is installed on the upper surface of the base, on the upper surface of the support plate is provided a first fixing ring, on the outer surface of the first fixing ring are opened four groups of grooves, inside the four groups of grooves of the first fixing ring are all slidably connected with positioning rods, on the side of the connecting rod away from the motor is provided a fixing disc, on the side of the fixing disc away from the L-shaped fixing plate are opened four groups of arc-shaped grooves, inside the four groups of arc-shaped grooves of the fixing disc are all slidably connected with sliders, on the side of the four sliders away from the fixing disc are all provided fixing rods, and on the side of the four fixing rods away from the fixing disc are respectively rotatably connected to the side of the four positioning rods close to the fixing disc, and on the side of the four positioning rods close to the inner wall of the first fixing ring are all provided triangular blocks.

[0010] Further, on the side of the four positioning rods away from the outer surface of the first fixing ring are all provided anti-slip bumps.

[0011] Further, on the upper surface of the first fixing ring is installed a positioning plate, and the side of the support plate and the positioning plate away from the fixing disc and the side of the four positioning rods away from the L-shaped fixing plate are kept parallel.

[0012] Further, the support mechanism includes a second fixing ring, the second fixing ring is installed on the inner wall of the first fixing ring, and inside the second fixing ring is slidably connected with a support rod, and the position of the support rod is inside the first fixing ring.

[0013] Further, on the side of the second fixing ring close to the support rod is provided an L-shaped connecting block, and the position of the inner side wall of the L-shaped connecting block is on the path of one side of the support rod.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The utility model drives the connecting rod and the fixed disc to rotate by starting the motor, so that the subsequent fixed disc drives the four sliders to slide inside the four arc-shaped grooves of the fixed disc during rotation. Then, during the sliding process of the four sliders, the four fixed rods are driven to pull the four positioning rods to slide inside the four grooves of the first fixed ring, and the outer surfaces of the four positioning rods are abutted against the inner wall of the precision part sleeved at the outer end of the first fixed ring, so that the four positioning rods position and limit the position of the precision part at the outer end of the first fixed ring, thus completing the positioning and clamping operation of the precision part in the horizontal direction; the positions of the four positioning rods can be adjusted and moved, so that the subsequent four positioning rods can clamp different models of precision parts.

[0016] 2. The utility model adjusts and moves the position of the small precision part to move the position of the small precision part to the inside of the first fixed ring, and then drives the four positioning rods to move by starting the motor, and the ends of the four triangular blocks far from the adjacent positioning rod are abutted against the outer surface of the small precision part, so that the subsequent positioning mechanism can clamp and position the small precision part inside the first fixed ring during use, thus expanding the positioning range of the subsequent device during use, and therefore improving the practicability of the device. Description of the Drawings

[0017] Figure 1 is a schematic side structure diagram of the utility model;

[0018] Figure 2 is a schematic front structure diagram of the utility model;

[0019] Figure 3 is a schematic side structure diagram of the support mechanism of the utility model;

[0020] Figure 4 is the utility model Figure 2 The enlarged view of part A in.

[0021] Reference numerals: 1, base; 2, positioning mechanism; 201, L-shaped fixing plate; 202, motor; 203, connecting rod; 204, fixed disc; 205, first fixed ring; 206, positioning rod; 207, fixed rod; 208, support plate; 209, triangular block; 210, slider; 3, anti-slip convex block; 4, L-shaped connecting block; 5, support mechanism; 501, support rod; 502, second fixed ring; 6, positioning plate. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, 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. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein generally can be arranged and designed in a variety of different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0026] As Figures 1 to 4 shown, a precision positioning fixture for precision part machining includes a base 1. An L-shaped fixing plate 201 is installed on the upper surface of the base 1. A motor 202 is provided on the inner side wall of the L-shaped fixing plate 201. A positioning mechanism 2 for positioning the moving position of the precision part is installed on the output shaft of the motor 202. A support mechanism 5 for supporting and placing inside the positioning mechanism 2 is provided inside the positioning mechanism 2. Specifically, by starting the motor 202 to drive the positioning mechanism 2 to clamp the precision part at the outer end or inside the positioning mechanism 2, the subsequent positioning mechanism 2 can clamp and sleeve different models and volumes of precision parts during use, thereby expanding the positioning range of the subsequent device during use, and thus improving the practicability of the device.

[0027] As Figure 1 、 Figure 2 and Figure 4As shown in the figure, the positioning mechanism 2 includes a connecting rod 203 and a support plate 208. The connecting rod 203 is installed on the output shaft of the motor 202, and the support plate 208 is installed on the upper surface of the base 1. A first fixed ring 205 is provided on the upper surface of the support plate 208. Four groups of grooves are provided on the outer surface of the first fixed ring 205. Four positioning rods 206 are slidably connected to the four groups of grooves inside the first fixed ring 205. A fixed disk 204 is provided on the side of the connecting rod 203 away from the motor 202. Four groups of arc-shaped grooves are provided on the side of the fixed disk 204 away from the L-shaped fixing plate 201. Four sliders 210 are slidably connected to the four groups of arc-shaped grooves inside the fixed disk 204. A fixed rod 207 is provided on the side of each of the four sliders 210 away from the fixed disk 204. The four fixed rods 207 are rotatably connected to the sides of the four positioning rods 206 close to the fixed disk 204 respectively. Triangular blocks 209 are provided on the sides of the four positioning rods 206 close to the inner wall of the first fixed ring 205;

[0028] Specifically, when a subsequent precision part is sleeved on the outer end of the first fixed ring 205, the motor 202 is started to drive the connecting rod 203 and the fixed disk 204 to rotate, so that the four sliders 210 slide inside the four groups of arc-shaped grooves of the fixed disk 204 during the rotation of the subsequent fixed disk 204. Then, during the sliding of the four sliders 210, the four fixed rods 207 are driven to pull the four positioning rods 206 to slide inside the four groups of grooves of the first fixed ring 205, and the outer surfaces of the four positioning rods 206 are abutted against the inner wall of the precision part sleeved on the outer end of the first fixed ring 205, so that the four positioning rods 206 position and limit the position of the precision part at the outer end of the first fixed ring 205, thereby completing the positioning and clamping operation of the precision part in the horizontal direction; the positions of the four positioning rods 206 can be adjusted and moved, so that the subsequent four positioning rods 206 can clamp different models of precision parts.

[0029] At the same time, when the subsequent device processes the inner wall of a small precision part; the position of the small precision part is adjusted and moved to the inside of the first fixed ring 205 by adjusting the position of the small precision part, and then the motor 202 is started to drive the four positioning rods 206 to move, and one end of each of the four triangular blocks 209 away from the adjacent positioning rod 206 is abutted against the outer surface of the small precision part, so that the subsequent positioning mechanism 2 can clamp and position the small precision part inside the first fixed ring 205 during use, thereby expanding the positioning range of the subsequent device during use, and thus improving the practicability of the device.

[0030] Such as Figure 1 、 Figure 2 and Figure 4As shown, anti-slip bumps 3 are provided on one side of the four groups of positioning rods 206 away from the outer surface of the first fixed ring 205. Specifically, by arranging the positions of the four groups of anti-slip bumps 3 between the joints of the four groups of positioning rods 206 and the inner wall of the precision part, the subsequent four groups of positioning rods 206 can increase the contact area with the inner wall of the precision part through the four groups of anti-slip bumps 3. Furthermore, during the subsequent use of the positioning mechanism 2, the friction force between the positioning mechanism 2 and the inner wall of the precision part increases, thereby minimizing the movement of the precision part when the ends of the subsequent four groups of positioning rods 206 away from the first fixed ring 205 abut against the inner wall of the precision part. Therefore, the stability of the positioning mechanism 2 when positioning large precision parts is improved.

[0031] As Figure 1 and Figure 2 shown, a positioning plate 6 is installed on the upper surface of the first fixed ring 205. The sides of the support plate 208 and the positioning plate 6 away from the fixed disc 204 are parallel to the sides of the four groups of positioning rods 206 away from the L-shaped fixing plate 201. Specifically, by keeping the sides of the support plate 208 and the positioning plate 6 away from the fixed disc 204 parallel to the sides of the four groups of positioning rods 206 away from the L-shaped fixing plate 201, the subsequent movement positions of the precision part when placed at the outer end of the first fixed ring 205 are restricted by the support plate 208 and the positioning plate 6. Furthermore, when the subsequent staff member pushes the precision part and makes the side of the precision part close to the L-shaped fixing plate 201 abut against the sides of the support plate 208 and the positioning plate 6 away from the L-shaped fixing plate 201, the precision part can be quickly placed at the outer ends of the four groups of positioning rods 206. Thus, the time consumed by the subsequent staff member when sleeving the precision part onto the outer ends of the four groups of positioning rods 206 is reduced. Therefore, the practicability of the device is improved.

[0032] Meanwhile, by pushing the precision part and making the side of the precision part close to the L-shaped fixing plate 201 abut against the sides of the support plate 208 and the positioning plate 6 away from the L-shaped fixing plate 201, the support plate 208 and the positioning rods 206 restrict the path of the precision part moving backward at the outer end of the first fixed ring 205. Thereby, it is minimized that the precision part moves backward during the subsequent processing of the precision part by the staff member. Therefore, the stability of the subsequent precision part during the processing at the outer end of the first fixed ring 205 is improved.

[0033] As Figure 2 and Figure 3As shown, the support mechanism 5 includes a fixed ring 2 502, which is installed on the inner wall of the fixed ring 1 205, and the interior of the fixed ring 202 is slidably connected with a support rod 501, and the position of the support rod 501 is located inside the fixed ring 1 205; specifically, before the small precision parts are clamped inside the subsequent fixed ring 1 205, the support rod 501 is driven to slide inside the fixed ring 2 502 by pushing the support rod 501, and the position of one end of the support rod 501 is adjusted to between the four groups of positioning rods 206, and then the small precision parts are moved by transporting and connecting the precision parts to the outer end of the support rod 501, so that the support mechanism 5 supports the position of the small precision parts inside the fixed ring 1 205, and then the subsequent staff does not need to manually support the precision parts when using the positioning mechanism 2 to position the precision parts, thereby reducing the labor and time consumed by the subsequent staff when using the positioning mechanism 2 to position the precision parts.

[0034] like Figure 3 As shown, an L-shaped connecting block 4 is provided on one side of the fixed circular ring 202 close to the support rod 501, and the position of the inner wall of the L-shaped connecting block 4 is located on one side path of the support rod 501; specifically, the position of the L-shaped connecting block 4 is located between the positions of the fixed circular ring 1 205 and the L-shaped fixed plate 201, and then the position of the L-shaped connecting block 4 is located on the moving path of the support rod 501, so that the L-shaped connecting block 4 limits the moving position of the support rod 501 inside the fixed circular ring 202, thereby preventing the motor 202 from driving the support rod 501 to slide inside the fixed circular ring 202 and come into contact with the fixed disk 204 during the startup process, thereby causing the support mechanism 5 to block the fixed disk 204 from rotating normally.

[0035] In summary, the connecting rod 203 and the fixed disc 204 are driven to rotate by starting the motor 202, so that the fixed disc 204 drives the four sets of sliders 210 to slide inside the four sets of arc grooves of the fixed disc 204 during the subsequent rotation process, and then the four sets of sliders 210 drive the four sets of fixed rods 207 to pull the four sets of positioning rods 206 to slide inside the four sets of grooves of the fixed ring 1 205 during the sliding process, so that the outer surface of the four sets of positioning rods 206 abuts against the inner wall of the precision part sleeved at the outer end of the fixed ring 1 205, so that the four sets of The positioning rod 206 positions and limits the position of the precision parts at the outer end of the fixed ring 205; by adjusting the position of the small precision parts, the position of the small precision parts is adjusted and moved to the inside of the fixed ring 205, and then the four groups of positioning rods 206 are driven to move by starting the motor 202, and the ends of the four groups of triangular blocks 209 away from the adjacent group of positioning rods 206 are all in contact with the outer surface of the small precision parts, so that the subsequent positioning mechanism 2 can clamp and position the small precision parts inside the fixed ring 205 during use.

[0036] Meanwhile, by keeping the side of the support plate 208 and the positioning plate 6 away from the fixed disc 204 parallel to the side of the four groups of positioning rods 206 away from the L-shaped fixing plate 201, the subsequent movement positions of the support plate 208 and the positioning plate 6 when placing precision parts at the outer end of the fixed ring one 205 are restricted. Furthermore, when the subsequent staff member pushes the precision parts to make the side of the precision parts close to the L-shaped fixing plate 201 abut against the side of the support plate 208 and the positioning plate 6 away from the L-shaped fixing plate 201, the precision parts can be quickly placed at the outer ends of the four groups of positioning rods 206; by pushing the support rod 501 to drive the support rod 501 to slide inside the fixed ring two 502, the position of one end of the support rod 501 is adjusted to between the four groups of positioning rods 206, and then by carrying and moving small precision parts, the precision parts are sleeved on the outer end of the support rod 501, so that the support mechanism 5 supports the position of the small precision parts inside the fixed ring one 205. Furthermore, during the subsequent positioning process of the precision parts by the positioning mechanism 2, the staff member does not need to manually hold the precision parts.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision positioning fixture for precision parts processing, comprising a base (1), characterized in that: An L-shaped fixing plate (201) is installed on the upper surface of the base (1), a motor (202) is arranged on the inner side wall of the L-shaped fixing plate (201), a positioning mechanism (2) for positioning the moving position of a precision part is installed on the output shaft of the motor (202), and a supporting device is arranged inside the positioning mechanism (2); a supporting mechanism (5) inside the positioning mechanism (2) is arranged.

2. The precision positioning fixture for precision parts processing according to claim 1, characterized in that: The positioning mechanism (2) comprises a connecting rod (203) and a support plate (208), wherein the connecting rod (203) is mounted on the output shaft of the motor (202), and the support plate (208) is mounted on the upper surface of the base (1), and a fixing ring (205) is arranged on the upper surface of the support plate (208), and four groups of grooves are arranged on the outer surface of the fixing ring (205), and the four groups of grooves of the fixing ring (205) are all slidably connected with a positioning rod (206), and a fixing disk (204) is arranged on the side of the connecting rod (203) away from the motor (202), and the fixing disk (204) Four groups of arc-shaped grooves are provided on a side away from the L-shaped fixed plate (204), and sliders (210) are slidably connected inside the four groups of arc-shaped grooves of the fixed disk (204). A fixing rod (207) is provided on the side away from the fixed disk (204). The side of the four groups of fixing rods (207) away from the fixed disk (204) is rotatably connected to the side of the four groups of positioning rods (206) close to the fixed disk (204), and a triangular block (209) is provided on the side of the inner wall of the four groups of positioning rods (206) close to the fixed ring (205).

3. The precision positioning fixture for precision parts processing according to claim 2, characterized in that: The four groups of positioning rods (206) are all provided with anti-slip bumps (3) on one side away from the outer surface of the fixing ring 1 (205).

4. The precision positioning fixture for precision parts processing according to claim 2, characterized in that: A positioning plate (6) is installed on the upper surface of the fixed circular ring (205), and the side of the support plate (208) and the positioning plate (6) away from the fixed disc (204) and the side of the four groups of positioning rods (206) away from the L-shaped fixed plate (201) remain parallel.

5. The precision positioning fixture for precision parts processing according to claim 2, characterized in that: The support mechanism (5) comprises a second fixed circular ring (502), wherein the second fixed circular ring (502) is mounted on the inner wall of the first fixed circular ring (205), and a support rod (501) is slidably connected inside the second fixed circular ring (502), and the support rod (501) is located inside the first fixed circular ring (205).

6. The precision positioning fixture for precision parts processing according to claim 5, characterized in that: An L-shaped connection block (4) is provided on one side of the second fixing ring (502) close to the support rod (501), and the inner side wall of the L-shaped connection block (4) is located on a path on one side of the support rod (501).

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