A positioning device for metal stamping

Abstract

This invention relates to the field of machining technology, specifically to a positioning device for metal stamping, comprising a main unit, a positioning unit including a positioning mechanism one mounted on a support for positioning the left and right sides of the workpiece, and a positioning mechanism two mounted between the support and the positioning mechanism one for positioning the rear side of the workpiece, and a pushing unit including a pushing mechanism mounted on the support for positioning the front side of the workpiece, and a transmission mechanism mounted on the support. By linking the positioning action with the stamping action, the device structure is simplified, reducing equipment procurement and subsequent maintenance costs, while also reducing operational difficulty. The positioning action is automatically completed along with the stamping movement of the main mechanism, avoiding safety hazards caused by operators having close contact with the stamping area, and eliminating the time-consuming separate positioning process. This effectively improves the overall efficiency of continuous stamping processing and achieves efficient and precise continuous stamping production.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a positioning device for metal stamping. Background Technology

[0002] Metal stamping is a widely used processing technology in the field of mechanical manufacturing. With its advantages of high efficiency, low cost and good forming quality, it is widely used in the mass production of various hardware parts. In actual production scenarios, continuous stamping operations have become the mainstream method of large-scale production because they can greatly improve production efficiency. The core requirement is to ensure the processing accuracy and stability of each workpiece in high-frequency stamping cycles and avoid problems such as dimensional deviation and forming defects. This places stringent requirements on the positioning accuracy and positioning efficiency of the workpiece. To ensure accurate workpiece positioning, operators often need to manually calibrate and fix the position of each workpiece to be processed. This method is cumbersome and time-consuming, which not only affects the overall efficiency of continuous stamping operations but also poses significant safety hazards. Operators need to be in close contact with the stamping area, making them highly susceptible to accidents caused by equipment malfunctions or operational errors. To address the drawbacks of manual positioning, some companies choose to add independent positioning equipment driven by pneumatic or electric power. However, the additional drive equipment and control system increase the company's equipment procurement and subsequent maintenance costs, raising production costs. Furthermore, to ensure that the positioning action is precisely matched with the stamping frequency and stroke rhythm of the stamping equipment, multiple coordinated adjustments to both the positioning and stamping equipment are required, demanding high levels of professional skills from operators. This limits its widespread application in small and medium-sized production enterprises and multi-specification workpiece processing scenarios.

[0003] In view of this, we propose a positioning device for metal stamping. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a positioning device for metal stamping, which can effectively solve the problems of low efficiency and poor safety of the existing manual positioning method in continuous stamping, and high cost and complicated debugging of the additional pneumatic or electric independent positioning equipment, making it difficult to balance positioning accuracy, efficiency and ease of use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a positioning device for metal stamping, comprising a main body unit, a support bracket, and a main mechanism disposed on the support bracket, comprising... The positioning unit includes a positioning mechanism 1 mounted on a support for positioning the left and right sides of the workpiece, and a positioning mechanism 2 mounted between the support and the positioning mechanism 1 for positioning the rear side of the workpiece. The positioning mechanism 1 is used to drive the positioning mechanism 2 to move. The pushing unit includes a pushing mechanism mounted on a support for positioning the front side of the workpiece, and a transmission mechanism mounted on the support, which drives the pushing mechanism to move when the main body is in motion.

[0006] Furthermore, the main structure includes a hydraulic cylinder fixedly connected to the top of the support, and an upper mold base is fixedly connected to the output end of the hydraulic cylinder.

[0007] Furthermore, a lower mold base is provided below the upper mold base. The bottom of the lower mold base is fixedly connected to the inner wall of the bracket. The surface of the lower mold base is provided with a second guide groove and two sets of first guide grooves, and the two sets of first guide grooves are symmetrically distributed.

[0008] Furthermore, the positioning mechanism includes two sets of upper trapezoidal blocks fixedly connected to the bottom of the upper mold base, and a lower trapezoidal block is correspondingly arranged below the upper trapezoidal blocks. The bottom of the lower trapezoidal block is slidably connected to the inner wall of the guide groove.

[0009] Furthermore, an elastic telescopic rod is fixedly connected to the inner wall of the guide groove, and the telescopic end of the elastic telescopic rod is fixedly connected to one side of the lower trapezoidal block.

[0010] Furthermore, the second positioning mechanism includes a connecting rod rotatably connected to one side of the lower trapezoidal block. An L-shaped fixing rod is rotatably connected to the end of the connecting rod away from the lower trapezoidal block. A rear stop block is fixedly connected to the end of the L-shaped fixing rod away from the connecting rod rotatably. The bottom of the rear stop block is slidably connected to the inner wall of the guide groove 2.

[0011] Furthermore, the transmission mechanism includes a fixed block fixedly connected to one side of the upper mold base, a connecting rod 2 rotatably connected to the end of the fixed block away from the upper mold base, and a crank rotatably connected to the end of the connecting rod 2 away from the fixed block.

[0012] Furthermore, a gear is fixedly connected to the end of the crank away from the connecting rod 2, and the gear is rotatably connected to the inner wall of the bracket on the axial side away from the crank.

[0013] Furthermore, a rack is meshed with the bottom of the gear, and a guide rail is slidably connected to the bottom of the rack. The bottom of the guide rail is fixedly connected to the inner wall of the bracket.

[0014] Furthermore, the pushing mechanism includes a second guide rail fixedly connected to the inner wall of the bracket, a front push block slidably connected to the inner wall of the second guide rail, and the side of the front push block away from the rear stop block fixedly connected to one end of the rack.

[0015] The technical solution provided by this invention has the following advantages compared with known public technologies: This invention links the positioning and stamping actions, using the synchronous motion of the main body to drive the positioning and pushing units. This eliminates the need for separate pneumatic or electric drive equipment, simplifying the device structure, reducing equipment procurement and maintenance costs, and lowering operational complexity. It is suitable for small and medium-sized production enterprises and multi-specification workpiece processing scenarios. The cooperation between the positioning and pushing units enables omnidirectional positioning of the workpiece in four directions (front, back, left, and right). The positioning action is automatically completed along with the stamping motion of the main body, avoiding safety hazards caused by close contact between operators and the stamping area, and eliminating the time-consuming separate positioning process. This effectively improves the overall efficiency of continuous stamping processing, achieving efficient and precise continuous stamping production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main unit structure of the present invention; Figure 3 This is a schematic diagram of the positioning unit and pushing unit structure of the present invention; Figure 4 This is a schematic diagram of the pushing unit structure of the present invention; Figure 5 This is a schematic diagram of the positioning unit structure of the present invention; Figure 6 This is a schematic diagram of the positioning mechanism of the present invention.

[0018] The labels in the diagram represent: 100, main unit; 101, bracket; 102, main mechanism; 1021, hydraulic cylinder; 1022, upper mold base; 1023, lower mold base; 1024, guide groove one; 1025, guide groove two; 200. Positioning unit; 201. Positioning mechanism one; 2011. Upper trapezoidal block; 2012. Lower trapezoidal block; 2013. Elastic telescopic rod; 202. Positioning mechanism two; 2021. Rear stop block; 2022. L-shaped fixing rod; 2023. Connecting rod one; 300. Pushing unit; 301. Transmission mechanism; 3011. Fixed block; 3012. Connecting rod two; 3013. Crank; 3014. Gear; 3015. Rack; 3016. Guide rail one; 302. Pushing mechanism; 3021. Guide rail two; 3022. Pushing block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] like Figures 1 to 6 As shown, a positioning device for metal stamping processing includes a main body unit 100, including a bracket 101, and a main body mechanism 102 mounted on the bracket 101. The main body mechanism 102 includes a positioning unit 200, comprising a positioning mechanism 201 mounted on the bracket 101 for positioning the left and right sides of the workpiece, and a positioning mechanism 202 mounted between the bracket 101 and the positioning mechanism 201 for positioning the rear side of the workpiece. The positioning mechanism 201 drives the positioning mechanism 202 to move. A pushing unit 300 includes a pushing mechanism 302 mounted on the bracket 101 for positioning the front side of the workpiece, and a transmission mechanism 301 mounted on the bracket 101. The support 301 is used to drive the push mechanism 302 to move when the main body 102 is in motion. The support 101 serves as the supporting foundation of the entire device, ensuring that it can bear the pressure during the stamping process. Then, the positioning unit 200 is assembled. Through the mechanical connection structure, the positioning mechanism 201 can be driven to move synchronously when it moves, ensuring the coordination of the two movements. Finally, the push unit 300 is assembled, and the push mechanism 302 is installed on the support 101 at the positioning position corresponding to the front side of the workpiece. The transmission mechanism 301 establishes a transmission connection with the main body 102 and the push mechanism 302 respectively, ensuring that the main body 102 can drive the push mechanism 302 to move through the transmission mechanism 301 when it moves. Specifically, refer to Figure 1 and Figure 2The main structure 102 includes a hydraulic cylinder 1021 fixedly connected to the top of the support 101. An upper die base 1022 is fixedly connected to the output end of the hydraulic cylinder 1021. A lower die base 1023 is located below the upper die base 1022. The bottom of the lower die base 1023 is fixedly connected to the inner wall of the support 101. The surface of the lower die base 1023 has a second guide groove 1025 and two sets of first guide grooves 1024, which are symmetrically distributed. The hydraulic cylinder 1021 is fixedly connected to the top of the support 101 by bolts or other means. The hydraulic cylinder 1021 can be a model matching the stamping pressure requirements. The output end is connected by welding or... The upper mold base 1022 is fixedly connected by flange connection or other means to ensure that the hydraulic cylinder 1021 can accurately drive the upper mold base 1022 to move up and down when it is actuated. The lower mold base 1023 is set directly below the upper mold base 1022. The bottom of the lower mold base 1023 is fixedly connected to the inner wall of the bracket 101 by bolts to ensure that the lower mold base 1023 does not shift during the stamping process. Guide groove 2 1025 and two sets of guide groove 1 1024 are machined on the surface of the lower mold base 1023. The two sets of guide groove 1 1024 are symmetrically distributed. The size of the guide groove is adapted to the sliding parts of the subsequent positioning unit 200 to ensure smooth sliding and reasonable gap. It should be noted that during use, the hydraulic cylinder 1021 is connected to the hydraulic system and the output end is extended and retracted through hydraulic drive, which in turn drives the upper die holder 1022 to move closer to or away from the lower die holder 1023 to complete the stamping or resetting action. The lower die holder 1023 serves as a support platform for the workpiece, and the guide groove 1024 and guide groove 2025 on its surface provide guidance for the movement of the positioning unit, ensuring that the positioning unit 200 always moves along the preset trajectory during the movement, thereby improving the positioning accuracy. Specifically, refer to Figure 3 , Figure 5 and Figure 6Positioning mechanism 1 201 includes two sets of upper trapezoidal blocks 2011 fixedly connected to the bottom of the upper mold base 1022. A lower trapezoidal block 2012 is correspondingly arranged below the upper trapezoidal blocks 2011. The bottom of the lower trapezoidal block 2012 is slidably connected to the inner wall of the guide groove 1 1024. An elastic telescopic rod 2013 is fixedly connected to the inner wall of the guide groove 1 1024. The telescopic end of the elastic telescopic rod 2013 is fixedly connected to one side of the lower trapezoidal block 2012. Positioning mechanism 202 includes a rotating connection on one side of the lower trapezoidal block 2012. Connecting rod 2023 is connected to an L-shaped fixing rod 2022 at the end of connecting rod 2023 away from the lower trapezoidal block 2012. A rear stop block 2021 is fixedly connected to the end of the L-shaped fixing rod 2022 away from connecting rod 2023. The bottom of the rear stop block 2021 is slidably connected to the inner wall of guide groove 1025. Two sets of upper trapezoidal blocks 2011 are fixedly connected to the bottom of the upper mold base 1022 by bolts. The positions of the two sets of upper trapezoidal blocks 2011 are aligned with the two sets of guide grooves on the lower mold base 1023. Corresponding to 1024, a lower trapezoidal block 2012 is slidably connected to the inner wall of each guide groove 1024. The shape of the lower trapezoidal block 2012 is adapted to the trapezoidal structure of the upper trapezoidal block 2011, ensuring that the upper trapezoidal block 2011 can accurately fit with the lower trapezoidal block 2012 and push it to move laterally when it moves downward. An elastic telescopic rod 2013 is fixedly connected to the inner wall of the guide groove 1024. The telescopic end of the elastic telescopic rod 2013 is fixedly connected to the lower trapezoidal block 2011 by welding or threaded connection. On one side of 2, the lower trapezoidal block 2012 is rotatably connected to the connecting rod 2023 via a rotating shaft. The end of the connecting rod 2023 away from the lower trapezoidal block 2012 is rotatably connected to the L-shaped fixing rod 2022 via a rotating shaft. The end of the L-shaped fixing rod 2022 away from the connecting rod 2023 is fixedly connected to the rear stop 2021 by welding. The bottom of the rear stop 2021 is slidably connected to the inner wall of the guide groove 1025 to ensure that the rear stop 2021 can move linearly in the front and back direction along the guide groove 1025. It should be noted that during use, when the main body mechanism 102 drives the upper mold base 1022 to move downward, the upper trapezoidal block 2011 moves downward accordingly and contacts the inclined surface of the lower trapezoidal block 2012. As the upper mold base 1022 continues to move downward, the upper trapezoidal block 2011 generates a lateral thrust on the lower trapezoidal block 2012, pushing the lower trapezoidal block 2012 to move inward along the guide groove 1024. At the same time, the elastic telescopic rod 2013 is stretched. During the movement of the lower trapezoidal block 2012, the L-shaped fixed rod 2022 is pulled through the connecting rod 2023. The L-shaped fixing rod 2022 drives the rear stop 2021 to move along the guide groove 1025 towards the workpiece until the rear stop 2021 is tightly fitted with the rear side of the workpiece, thus positioning the rear side of the workpiece. After stamping is completed, the upper die holder 1022 resets upward, the upper trapezoidal block 2011 disengages from the lower trapezoidal block 2012, and the elastic telescopic rod 2013 pulls the lower trapezoidal block 2012 back to its original position under elastic action. Through the connecting rod 2023, the L-shaped fixing rod 2022 and the rear stop 2021 return to their initial positions, making it easier to remove the workpiece. Specifically, refer to Figure 3 and Figure 4 The transmission mechanism 301 includes a fixed block 3011 fixedly connected to one side of the upper mold base 1022. A connecting rod 3012 is rotatably connected to the end of the fixed block 3011 away from the upper mold base 1022. A crank 3013 is rotatably connected to the end of the connecting rod 3012 away from the fixed block 3011. A gear 3014 is fixedly connected to the end of the crank 3013 away from the connecting rod 3012. The gear 3014 is rotatably connected to a support on the axial side away from the crank 3013. The inner wall of the bracket 101 has a gear 3014 with a rack 3015 meshing at the bottom. A guide rail 3016 is slidably connected to the bottom of the rack 3015. The bottom of the guide rail 3016 is fixedly connected to the inner wall of the bracket 101. The pushing mechanism 302 includes a guide rail 3021 fixedly connected to the inner wall of the bracket 101. A front push block 3022 is slidably connected to the inner wall of the guide rail 3021. The side of the front push block 3022 away from the rear stop block 2021 is fixedly connected to the rack 3015. One end of 015; the axial side of gear 3014 away from crank 3013 is rotatably connected to the inner wall of bracket 101 via bearing, ensuring that gear 3014 can rotate flexibly and be installed stably. Gear rack 3015 is meshed and connected at the bottom of gear 3014. Guide rail 1 3016 is slidably connected to the bottom of rack 3015. The bottom of guide rail 1 3016 is fixedly connected to the inner wall of bracket 101 by bolts. The length direction of guide rail 1 3016 is consistent with the movement direction of rack 3015, providing guidance and support for rack 3015. At the same time, guide rail 2 3021 is fixedly connected to the inner wall of bracket 101 by bolts. Front push block 3022 is slidably connected to the inner wall of guide rail 2 3021. The side of front push block 3022 away from rear stop block 2021 is fixed to one end of rack 3015 by welding or bolts, ensuring that rack 3015 can synchronously drive front push block 3022 to slide along guide rail 2 3021 when it moves. It should be noted that during use, when the upper mold base 1022 moves downward, it drives the fixed block 3011 to move downward synchronously. The fixed block 3011 pulls the crank 3013 to rotate around the axis of the gear 3014 through the connecting rod 3012, thereby driving the gear 3014 to rotate. The gear 3014 meshes with the rack 3015, converting the rotational motion of the gear 3014 into the linear motion of the rack 3015 along the guide rail 3016. The rack 3015 moves towards the workpiece. The front push block 3022 is synchronously driven to slide along the guide rail 3021 until the front push block 3022 is in contact with the front side of the workpiece. It cooperates with the rear stop block 2021 to achieve clamping and positioning of the workpiece in the front and rear directions. When the stamping is completed and the upper die holder 1022 is reset upward, the fixed block 3011 drives the connecting rod 3012 to move upward, pushes the crank 3013 to rotate in the opposite direction, and the gear 3014 rotates in the opposite direction, driving the rack 3015 and the front push block 3022 back to the initial position, which facilitates secondary loading.

[0022] The working principle of the present invention is as follows: First, the metal workpiece to be stamped is placed in the preset bearing area of ​​the lower die base 1023. After the device is started, the hydraulic cylinder 1021 in the main body mechanism 102 is connected to the hydraulic system and starts to work. The output end of the hydraulic cylinder 1021 extends and retracts downward, driving the upper die base 1022 to move synchronously towards the lower die base 1023. During the downward movement of the upper die holder 1022, the linkage positioning action of the positioning unit 200 is triggered simultaneously. First, the two sets of upper trapezoidal blocks 2011 fixed at the bottom of the upper die holder 1022 move down and gradually come into contact with the inclined surface of the lower trapezoidal block 2012 in the guide groove 1024 of the lower die holder 1023. As the upper die holder 1022 continues to move down, the upper trapezoidal blocks 2011 generate a lateral inward pushing force on the lower trapezoidal blocks 2012, pushing the two sets of lower trapezoidal blocks 2012 to slide synchronously along the guide groove 1024 towards the workpiece. During this process, the elastic telescopic rod 2013 on the inner wall of the guide groove 1024 is stretched and accumulates elastic potential energy. The two sets of lower trapezoidal blocks 2012 finally come into close contact with the left and right sides of the workpiece, realizing precise clamping and positioning of the workpiece in the left and right directions, and avoiding lateral displacement of the workpiece during stamping. At the same time, when the lower trapezoidal block 2012 moves laterally, the connecting rod 2023 connected to one side pulls the L-shaped fixed rod 2022, causing the L-shaped fixed rod 2022 to drive the rear stop 2021 to move in a straight line along the guide groove 1025 towards the workpiece until the rear stop 2021 is tightly attached to the rear side of the workpiece, thus completing the positioning limit of the rear side of the workpiece. Through the linkage of positioning mechanism 201 and positioning mechanism 202, the positioning actions of the left and right sides and the rear side of the workpiece are completed simultaneously, effectively shortening the positioning time. At the same time, the downward movement of the upper mold base 1022 will also drive the push unit 300 to move, realizing the positioning of the front side of the workpiece. The fixed block 3011 fixed on one side of the upper mold base 1022 will move down accordingly. Through the rotating connecting rod 3012, the crank 3013 will be pulled to rotate around the axis of the gear 3014, thereby driving the gear 3014 to rotate synchronously. The gear 3014 and the rack 3015 meshing at the bottom will form a transmission engagement, converting the rotational motion of the gear 3014 into the linear motion of the rack 3015 along the guide rail 3016. When the rack 3015 moves towards the workpiece, it will synchronously drive the front push block 3022 fixedly connected to it to slide along the guide rail 3021. Finally, the front push block 3022 fits tightly against the front side of the workpiece and forms a clamping and positioning in the front-back direction with the rear stop block 2021, ensuring that the workpiece has no displacement in the front-back direction. Thus, during the downward movement of the main body mechanism 102, the workpiece is precisely positioned in all directions in the front, back, left, and right directions through the synchronous linkage of the positioning unit 200 and the push unit 300. At this time, the upper die base 1022 continues to move down to complete the stamping process of the positioned workpiece. After stamping is completed, the output end of the hydraulic cylinder 1021 extends and retracts upward, driving the upper die holder 1022 to reset. The upper trapezoidal block 2011 moves upward and separates from the lower trapezoidal block 2012. The elastic telescopic rod 2013 releases elastic potential energy, pulling the lower trapezoidal block 2012 to reset outward along the guide groove 1024. The connecting rod 2023 drives the L-shaped fixed rod 2022 and the rear stop block 2021 back to the initial position. At the same time, the upper die holder 1022 resets and drives the fixed block 3011 to move upward. Through the connecting rod 3012, the crank 3013 is pushed to rotate in the opposite direction, and the gear 3014 rotates in the opposite direction, driving the rack 3015 and the front push block 3022 to reset, releasing the positioning restriction on the workpiece. At this time, the processed workpiece can be quickly taken out, and a loading space is reserved on the front side to facilitate the loading of the next workpiece, realizing a high-efficiency cycle of continuous stamping processing.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning device for metal stamping, comprising a main body unit (100), a support (101), and a main body mechanism (102) disposed on the support (101), characterized in that, include, The positioning unit (200) includes a positioning mechanism 1 (201) disposed on the bracket (101) for positioning the left and right sides of the workpiece, and a positioning mechanism 2 (202) disposed between the bracket (101) and the positioning mechanism 1 (201) for positioning the rear side of the workpiece. The positioning mechanism 1 (201) is used to drive the positioning mechanism 2 (202) to move. The pushing unit (300) includes a pushing mechanism (302) mounted on the bracket (101) for positioning the front side of the workpiece, and a transmission mechanism (301) mounted on the bracket (101). The transmission mechanism (301) is used to drive the pushing mechanism (302) to move when the main body (102) is in motion.

2. The positioning device for metal stamping according to claim 1, characterized in that, The main body (102) includes a hydraulic cylinder (1021) fixedly connected to the top of the bracket (101), and an upper mold base (1022) is fixedly connected to the output end of the hydraulic cylinder (1021).

3. The positioning device for metal stamping according to claim 2, characterized in that, A lower mold base (1023) is provided below the upper mold base (1022). The bottom of the lower mold base (1023) is fixedly connected to the inner wall of the bracket (101). The surface of the lower mold base (1023) is provided with a second guide groove (1025) and two sets of first guide grooves (1024), and the two sets of first guide grooves (1024) are symmetrically distributed.

4. The positioning device for metal stamping according to claim 1, characterized in that, The positioning mechanism (201) includes two sets of upper trapezoidal blocks (2011) fixedly connected to the bottom of the upper mold base (1022), and a lower trapezoidal block (2012) is correspondingly provided below the upper trapezoidal block (2011). The bottom of the lower trapezoidal block (2012) is slidably connected to the inner wall of the guide groove (1024).

5. A positioning device for metal stamping processing according to claim 3, characterized in that, An elastic telescopic rod (2013) is fixedly connected to the inner wall of the guide groove (1024), and the telescopic end of the elastic telescopic rod (2013) is fixedly connected to one side of the lower trapezoidal block (2012).

6. The positioning device for metal stamping according to claim 1, characterized in that, The second positioning mechanism (202) includes a connecting rod (2023) rotatably connected to one side of the lower trapezoidal block (2012). An L-shaped fixing rod (2022) is rotatably connected to the end of the connecting rod (2023) away from the lower trapezoidal block (2012). A rear stop (2021) is fixedly connected to the end of the L-shaped fixing rod (2022) away from the connecting rod (2023). The bottom of the rear stop (2021) is slidably connected to the inner wall of the second guide groove (1025).

7. A positioning device for metal stamping processing according to claim 1, characterized in that, The transmission mechanism (301) includes a fixed block (3011) fixedly connected to one side of the upper mold base (1022), a connecting rod (3012) rotatably connected to the end of the fixed block (3011) away from the upper mold base (1022), and a crank (3013) rotatably connected to the end of the connecting rod (3012) away from the fixed block (3011).

8. A positioning device for metal stamping processing according to claim 7, characterized in that, The crank (3013) is fixedly connected to a gear (3014) at the end away from the connecting rod (3012), and the gear (3014) is rotatably connected to the inner wall of the bracket (101) on the axial side away from the crank (3013).

9. A positioning device for metal stamping processing according to claim 8, characterized in that, The gear (3014) is meshed with a rack (3015) at the bottom, and a guide rail (3016) is slidably connected to the bottom of the rack (3015). The bottom of the guide rail (3016) is fixedly connected to the inner wall of the bracket (101).

10. A positioning device for metal stamping processing according to claim 1, characterized in that, The pushing mechanism (302) includes a guide rail (3021) fixedly connected to the inner wall of the bracket (101), and a front push block (3022) slidably connected to the inner wall of the guide rail (3021). The side of the front push block (3022) away from the rear stop block (2021) is fixedly connected to one end of the rack (3015).

Images