Lower cylinder housing casting press molding gate sawing and carrying gripper

Abstract

This utility model belongs to the field of material handling robot technology, specifically relating to a sawing and handling gripper for die-casting nozzles of lower cylinder housing castings. It includes a fixed base for fixing and connecting a robotic arm. At the front end of the fixed base, a first double-guide-rail slide finger cylinder and a second double-guide-rail slide finger cylinder are staggered for clamping and sawing the die-casting nozzles of the casting. The back of the first double-guide-rail slide finger cylinder is fixedly mounted on the fixed base. An adjustment mechanism for adjusting the clamping distance between the first and second double-guide-rail slide finger cylinders is provided between the back of the second double-guide-rail slide finger cylinder and the fixed base. Through this adjustment mechanism, the distance between the first and second double-guide-rail slide finger cylinders can be adjusted according to different casting models, reducing manual intervention, lowering adjustment time, and improving work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of material handling robot technology, specifically relating to a sawing and handling gripper for die-casting gates of lower cylinder housing castings. Background Technology

[0002] In the automotive parts manufacturing industry, the lower cylinder block housing, as a core engine component, is directly affected by its die-casting process, impacting product quality and production efficiency. Each lower cylinder block housing weighs 15-20 kg, requiring 2-3 people to handle manually, resulting in high labor intensity and a risk of falls. An annual accident report from a die-casting workshop showed that 40% of work-related injuries were caused by handling, with 70% of those injuries occurring during the handling of lower cylinder block housings. Furthermore, manual contact with the casting surface easily leads to oil contamination, affecting subsequent coating quality and increasing the product rework rate by 12%.

[0003] Existing automated sawing equipment mostly uses fixed clamps, which cannot adapt to the rapid switching of cylinder housings of different specifications. For example, when changing product models, a company's imported sawing line required adjusting 12 clamp positioning points, taking more than 2 hours and severely impacting production flexibility. Meanwhile, traditional robotic gripping methods easily scratch the surface of castings, resulting in an 8% decrease in product qualification rate.

[0004] In existing technologies, the lack of real-time data interaction between sawing equipment and handling robots results in the robot being unable to accurately position itself after sawing, requiring manual intervention and adjustments, which increases non-value-added time. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sawing and handling gripper for die-casting nozzles of lower cylinder housing castings. Through staggered first and second double-guide-rail slide finger cylinders, the gripper can be fixedly held and sawn for die-casting nozzles. An adjustment mechanism allows for adjustment of the distance between the first and second double-guide-rail slide finger cylinders according to different casting models, reducing manual intervention. This solves the problem in existing technologies where the sawing equipment and the handling robot lack real-time data interaction, leading to inaccurate positioning of the robot after sawing and requiring manual adjustment, thus increasing non-value-added time.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a sawing and handling gripper for die-casting nozzles of lower cylinder body castings, including a fixed base for fixing and connecting a robotic arm. The front end of the fixed base is staggered with a first double-guide rail slide finger cylinder and a second double-guide rail slide finger cylinder for clamping and sawing die-casting nozzles of the castings. The back of the first double-guide rail slide finger cylinder is fixedly mounted on the fixed base. An adjustment mechanism for adjusting the clamping distance between the first double-guide rail slide finger cylinder and the second double-guide rail slide finger cylinder is provided between the back of the second double-guide rail slide finger cylinder and the fixed base.

[0007] Preferably, a mounting base is fixedly provided on the back of the second double-guide rail slide finger cylinder, and a slider is provided on the back of the mounting base.

[0008] Preferably, the adjustment mechanism includes a fixed frame disposed at the front end of the fixed base, a slide rail that matches the slider on the fixed frame, and adjustment blocks disposed opposite to each other on both sides of the fixed frame, with the top ends of the two adjustment blocks respectively abutting against the two ends of the mounting base.

[0009] Preferably, positioning rods are provided on both sides of the fixing frame, the ends of the positioning rods abut against the two ends of the mounting base, and the positioning rods are installed on the fixing frame by bolts.

[0010] Preferably, the adjusting block includes a main rod and an abutment. The main rod is mounted on the fixing frame by bolts, and the end of the abutment abuts against the end of the mounting base.

[0011] Preferably, a spring is fitted onto the main rod, with one end of the spring contacting the bottom end of the abutment and the other end of the spring contacting the inner side of the fixing frame.

[0012] Preferably, the first double-guide rail slide finger cylinder and the second double-guide rail slide finger cylinder are provided with clamping blocks for contact with the die casting nozzle saw of the clamped casting, and the clamping blocks are provided with anti-slip textures.

[0013] Preferably, the mounting base has mounting holes for connecting to the robotic arm.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes staggered first and second double-guide-rail slide finger cylinders to fix and clamp castings for die casting nozzle sawing. Through an adjustment mechanism, the distance between the first and second double-guide-rail slide finger cylinders can be adjusted according to different casting models, reducing manual intervention, shortening adjustment time, and improving work efficiency.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the clamping state of the sawing and handling gripper for the die-casting gate of the lower cylinder body shell casting.

[0018] Figure 2 3D structural diagram of a sawing and handling gripper for die-casting nozzles of the lower cylinder block shell casting. Figure 1 .

[0019] Figure 3 3D structural diagram of a sawing and handling gripper for die-casting nozzles of the lower cylinder block shell casting. Figure 2 .

[0020] Figure 4 A three-dimensional structural diagram of the second double-guide rail slide finger cylinder of the die-casting gate sawing and handling gripper for the lower cylinder body shell casting.

[0021] Figure 5 An exploded view of the three-dimensional structure of the second double-guide rail slide finger cylinder of the die-casting gate sawing and handling gripper for the lower cylinder body shell casting.

[0022] Figure 6 This is a three-dimensional structural diagram of the adjustment mechanism for the sawing and handling gripper of the die-casting gate of the lower cylinder body shell casting.

[0023] In the diagram: 1. Fixed base; 2. First double-guide rail slide finger cylinder; 3. Second double-guide rail slide finger cylinder; 31. Mounting base; 32. Slider; 4. Adjustment mechanism; 41. Fixed frame; 411. Positioning rod; 42. Slide rail; 43. Adjustment block; 431. Main rod body; 4311. Spring component; 432. Abutment joint; 5. Clamping block; 6. Anti-slip texture; 7. Mounting hole. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lower cylinder body housing casting die casting nozzle sawing and handling gripper includes a fixed base 1 for fixing and connecting the robotic arm. The front end of the fixed base 1 is staggered with a first double guide rail slide finger cylinder 2 and a second double guide rail slide finger cylinder 3 for clamping the casting die casting nozzle sawing. The back of the first double guide rail slide finger cylinder 2 is fixedly mounted on the fixed base 1. An adjustment mechanism 4 is provided between the back of the second double guide rail slide finger cylinder 3 and the fixed base 1 for adjusting the clamping distance between the first double guide rail slide finger cylinder 2 and the second double guide rail slide finger cylinder 3.

[0026] This utility model proposes a gripper for sawing and transporting die-casting gates of lower cylinder housing castings. A fixed base 1 is used to fix and connect the gripper to the robotic arm, providing stable support and power transmission for subsequent gripper movements. A first double-guide-rail slide finger cylinder 2 is responsible for clamping and sawing the die-casting gates of the casting. It is fixedly installed on the fixed base 1 in a relatively fixed position and is one of the important actuators for the gripper to achieve its clamping function. A second double-guide-rail slide finger cylinder 3 is also used for clamping and sawing the die-casting gates of the casting. An adjustment mechanism 4 is provided between the back of the second double-guide-rail slide finger cylinder 3 and the fixed base 1.

[0027] The adjustment mechanism 4 is located between the back of the second double-guide-rail slide finger cylinder 3 and the fixed base 1, and is used to adjust the clamping distance between the first double-guide-rail slide finger cylinder 2 and the second double-guide-rail slide finger cylinder 3. By adjusting this distance, it can accommodate die-casting nozzles of different sizes and specifications, improving the versatility and flexibility of the gripper.

[0028] First, the entire gripper is fixedly connected to the robotic arm via the fixed base 1, ensuring that the gripper can move with the robotic arm and maintain stability during movement. The first double-rail slide finger cylinder 2 is directly fixed to the fixed base 1, so its position is relatively fixed. The second double-rail slide finger cylinder 3 can have its distance from the first double-rail slide finger cylinder 2 adjusted via the adjusting mechanism 4. Based on the size of the die-casting nozzle of the casting to be clamped, the adjusting mechanism 4 is operated to achieve a suitable distance between the two finger cylinders, enabling accurate and stable clamping of the nozzle.

[0029] Once the distance between the two finger cylinders is adjusted, the robotic arm moves the gripper to the position of the die-casting gate on the casting. At this time, the first double-guide-rail slide finger cylinder 2 and the second double-guide-rail slide finger cylinder 3 operate simultaneously, achieving precise finger movement through their respective double-guide-rail slide structures to clamp the die-casting gate. After clamping the gate, the robotic arm moves the gripper according to a preset program, transporting the die-casting gate to the designated sawing position. During sawing, the gripper maintains a stable grip on the gate, ensuring smooth sawing. After sawing, the robotic arm then moves the gripper to transport the processed casting to the location of the subsequent process or storage area.

[0030] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a mounting base 31 is fixedly provided on the back of the second double guide rail slide finger cylinder 3, and a slider 32 is provided on the back of the mounting base 31.

[0031] Specifically, the mounting base 31 is fixedly mounted on the back of the second double-rail slide finger cylinder 3. It serves as a connector and support, securely connecting the second double-rail slide finger cylinder 3 to other components, providing a foundation for the stable operation of the entire structure. The slider 32 is located on the back of the mounting base 31. The slider 32 engages with the guide rail, allowing the mounting base 31 and the connected second double-rail slide finger cylinder 3 to slide on the guide rail, thereby achieving position adjustment and movement.

[0032] Combination Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the adjustment mechanism 4 includes a fixed frame 41 disposed at the front end of the fixed base 1. The fixed frame 41 is provided with a slide rail 42 that matches the slider 32. Adjustment blocks 43 are disposed opposite to each other on both sides of the fixed frame 41. The top ends of the two adjustment blocks 43 respectively abut against the two ends of the mounting base 31.

[0033] Specifically, the mounting bracket 41 is located at the front end of the fixed base 1, providing a platform for the installation and fixation of other components, ensuring that the entire adjustment mechanism 4 can be securely connected to the fixed base 1. The slide rail 42 is mounted on the mounting bracket 41 and matches the slider 32. The slide rail 42 provides a track for the slider 32 to slide, allowing the slider 32 to move smoothly along a specific direction, thereby realizing the position adjustment of the connected components.

[0034] Adjusting blocks 43 are arranged opposite each other on both sides of the fixing frame 41, with the top ends of the two adjusting blocks 43 abutting against the two ends of the mounting base 31 respectively. The adjusting blocks 43 can be adjusted in a certain way to change their contact position and pressure with the mounting base 31, thereby fine-tuning the position of the mounting base 31.

[0035] Combination Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, positioning rods 411 are arranged opposite each other on both sides of the fixing frame 41. The ends of the positioning rods 411 abut against the two ends of the mounting base 31. The positioning rods 411 are installed on the fixing frame 41 by bolts.

[0036] Specifically, there are two positioning rods 411, positioned opposite each other on both sides of the fixing frame 41. These rods position and restrict the mounting base 31 from two directions, ensuring its horizontal positional accuracy. The positioning rods 411 are bolted to the fixing frame 41. Threaded holes matching the bolts are pre-drilled on both sides of the fixing frame 41. During installation, the positioning rods 411 are passed through the threaded holes, and then the bolts are tightened to securely connect the positioning rods 411 to the fixing frame 41. The ends of the positioning rods 411 abut against both ends of the mounting base 31, restricting its movement.

[0037] Combination Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the adjusting block 43 includes a main rod 431 and an abutment 432. The main rod 431 is mounted on the fixing frame 41 by bolts, and the end of the abutment 432 abuts against the end of the mounting base 31.

[0038] Specifically, the main rod 431 is bolted to the fixing frame 41. This bolted connection ensures the main rod 431 is securely fixed in its designated position on the fixing frame 41, and also provides a degree of detachability, facilitating maintenance, replacement, or adjustment of the adjusting block 43's position when needed. The abutment joint 432 is connected to the main rod 431, with its end directly abutting against the end of the mounting base 31. Through the contact between the abutment joint 432 and the end of the mounting base 31, the adjusting block 43 can adjust the position of the mounting base 31. The adjusting block 43 is entirely mounted on the fixing frame 41 and has an abutment relationship with the mounting base 31. The fixing frame 41 provides the mounting base for the adjusting block 43, while the mounting base 31 is the object onto which the adjusting block 43 applies adjustment force; together, these three components constitute a subsystem for adjusting the position of the mounting base 31.

[0039] When the equipment is not being adjusted, the adjusting block 43 is securely mounted on the fixed frame 41 with bolts, and the end of the abutment 432 is in initial contact with the end of the mounting base 31. At this time, the mounting base 31 is in a relatively fixed initial position, which is preset according to the design requirements and working needs of the equipment.

[0040] When the position of the mounting base 31 needs to be adjusted according to different working scenarios (such as handling workpieces of different sizes or shapes), the operator begins to adjust the adjusting block 43. Since the main rod 431 is mounted on the fixed frame 41 by bolts, the operator can move the position of the main rod 431 within a certain range by loosening the bolts, thereby changing the relative position of the abutment 432 and the end of the mounting base 31.

[0041] During the movement of the main rod 431, the abutment 432 applies a force to the end of the mounting base 31. The direction and magnitude of this force depend on the direction and distance of movement of the main rod 431. For example, if the main rod 431 is moved closer to the center of the mounting base 31, the abutment 432 will push the mounting base 31 to move in the corresponding direction; conversely, if the main rod 431 is moved away from the center of the mounting base 31, the mounting base 31 will remain relatively stable or make slight adjustments in the opposite direction under the action of other constraint forces.

[0042] Once the mounting base 31 has been moved to the desired position, the operator stops moving the main rod 431 and retightens the bolts to securely fix the main rod 431 to the mounting bracket 41. At this point, the abutment joint 432 maintains a new abutment with the end of the mounting base 31, and the mounting base 31 is stabilized in the adjusted position. Thus, the second double-guide rail slide finger cylinder 3, connected to the mounting base 31, can perform accurate work in the new position, such as clamping and transporting workpieces.

[0043] The tightening of the bolts and the contact between the abutment 432 and the end of the mounting base 31 ensure that the adjusting block 43 will not loosen due to vibration or other external forces during equipment operation, thereby ensuring the stability of the position of the mounting base 31 and enabling the entire equipment to continuously and accurately complete its work tasks.

[0044] Combination Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a spring member 4311 is sleeved on the main rod body 431. One end of the spring member 4311 contacts the bottom end of the abutment joint 432, and the other end of the spring member 4311 contacts the inner side of the fixing frame 41.

[0045] Specifically, one end of the spring element 4311 contacts the bottom end of the abutment 432, and the other end contacts the inner side of the fixing frame 41. This compresses the spring element 4311, generating a preload that pushes the abutment 432 towards the mounting base 31. Due to the pushing action of the spring element 4311, the abutment 432 maintains close contact with the end of the mounting base 31, and can quickly return to the abutment state even if vibration or displacement occurs during equipment operation. The fixing frame 41 provides the mounting foundation and support for the entire adjustment structure. It not only fixes the main rod 431 but also contacts the other end of the spring element 4311, providing a support surface for the reaction force of the spring element 4311. The fixing frame 41, the main rod 431, the spring element 4311, and the abutment 432 together constitute a complete adjustment subsystem, realizing the adjustment of the position of the mounting base 31.

[0046] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the first double-guide rail slide finger cylinder 2 and the second double-guide rail slide finger cylinder 3 are provided with clamping blocks 5 for contact with the die casting nozzle saw of the clamped casting. The clamping blocks 5 are provided with anti-slip textures 6.

[0047] Specifically, the clamping block 5 is located at the grippers of the first double-guide rail slide finger cylinder 2 and the second double-guide rail slide finger cylinder 3. The clamping block 5 directly contacts the clamped casting, serving to transmit clamping force and protect the grippers. Anti-slip textures 6 are provided on the surface of the clamping block 5 that contacts the casting. The shapes and arrangements of the anti-slip textures 6 are diverse, with common examples including grid patterns and stripes. These textures increase the friction between the clamping block 5 and the casting, preventing the casting from sliding or falling off due to vibration or external force during sawing.

[0048] Combination Figure 1 , Figure 2 and Figure 3 As shown, the fixed base 1 has a mounting hole 7 for connecting with the robotic arm.

[0049] Specifically, the mounting base 1 is the basic support component of the entire structure, and is usually made of materials with a certain strength and rigidity, such as metals (e.g., aluminum alloys, steel) or high-strength engineering plastics. Metal mounting base 1 can provide more reliable support and is suitable for environments that bear large loads and complex working conditions; while high-strength engineering plastic mounting base 1 has the advantages of being lightweight and corrosion-resistant, and is suitable for scenarios with strict weight requirements or where there is a risk of corrosion.

[0050] Mounting hole 7 is provided on the fixed base 1 to ensure accurate alignment with the connecting parts on the robotic arm. Typically, the position of mounting hole 7 is determined based on the position of the robotic arm's connecting flange or connecting shaft to ensure quick and accurate positioning during installation.

[0051] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A sawing and handling gripper for die-casting sprue of lower cylinder body shell casting, including a fixing base (1) for fixing and connecting a robotic arm, characterized in that, The front end of the fixed base (1) is provided with a first double guide rail slide finger cylinder (2) and a second double guide rail slide finger cylinder (3) for clamping the die casting nozzle sawing of the casting. The back of the first double guide rail slide finger cylinder (2) is fixedly installed on the fixed base (1). An adjustment mechanism (4) for adjusting the clamping distance between the first double guide rail slide finger cylinder (2) and the second double guide rail slide finger cylinder (3) is provided between the back of the second double guide rail slide finger cylinder (3) and the fixed base (1).

2. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting as described in claim 1, characterized in that, The back of the second double-rail slide finger cylinder (3) is fixedly provided with a mounting base (31), and the back of the mounting base (31) is provided with a slider (32).

3. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting according to claim 2, characterized in that, The adjustment mechanism (4) includes a fixed frame (41) set at the front end of the fixed base (1), a slide rail (42) matching the slider (32) is provided on the fixed frame (41), and adjustment blocks (43) are arranged opposite to each other on both sides of the fixed frame (41), with the top ends of the two adjustment blocks (43) respectively abutting against the two ends of the mounting base (31).

4. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting according to claim 3, characterized in that, Positioning rods (411) are provided on both sides of the fixing frame (41). The ends of the positioning rods (411) abut against the two ends of the mounting base (31). The positioning rods (411) are installed on the fixing frame (41) by bolts.

5. The sawing and handling gripper for die-casting nozzles of the lower cylinder body casting according to any one of claims 3 or 4, characterized in that, The adjusting block (43) includes a main rod (431) and an abutment (432). The main rod (431) is mounted on the fixing frame (41) by bolts, and the end of the abutment (432) abuts against the end of the mounting base (31).

6. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting according to claim 5, characterized in that, A spring (4311) is fitted on the main rod (431). One end of the spring (4311) contacts the bottom end of the abutment (432), and the other end of the spring (4311) contacts the inner side of the fixing frame (41).

7. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting according to claim 6, characterized in that, The first double-guide rail slide finger cylinder (2) and the second double-guide rail slide finger cylinder (3) are provided with a clamping block (5) for the die casting nozzle sawing contact of the clamped casting. The clamping block (5) is provided with anti-slip texture (6).

8. The sawing and handling gripper for die-casting gates of the lower cylinder housing casting according to claim 7, characterized in that, The mounting base (1) has a mounting hole (7) for connecting to the robotic arm.

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