An ATC test bench

Abstract

The present application relates to the technical field of ATC cam box testing equipment, and specifically discloses an ATC testing table, which is used to solve the technical problems of the existing ATC cam box testing equipment, such as complicated structure, complex assembly process, long time consumption for assembly and debugging, high difficulty for disassembly, carrying and maintenance in the later period, insufficient generality of the cam box positioning structure, replacement of the matching positioning structure for different specifications of products, complicated process and low testing efficiency, and specifically comprises the following: a testing assembly, which comprises a testing frame, a base plate installed on the top of the testing frame, an ATC cam box installed on the top of the base plate, a cutter arm seat sleeved on the outside of the output end of the ATC cam box, a cutter arm body sleeved on the outside of the cutter arm seat, a false main shaft base installed on the top of the base plate, and a false main shaft cutter sleeve sleeved on the inside of the cutter arm body and installed on the inside of the false main shaft base; the present application has a simple structure, and the assembly and disassembly operations are simple, time-saving and labor-saving, so that the difficulty for carrying and maintenance in the later period can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of ATC cam box testing equipment technology, and more particularly to an ATC testing bench. Background Technology

[0002] The ATC cam box is the core transmission component of the automatic tool changer mechanism in machining centers. Its operational stability, transmission accuracy, and action response speed directly determine the tool changing accuracy and operational reliability of the machine tool. Therefore, the ATC cam box must undergo comprehensive performance testing before leaving the factory and after maintenance to verify its smooth operation, positioning accuracy, and linkage stability, and to eliminate faults such as jamming, misalignment, and delayed response.

[0003] Currently, conventional ATC cam box testing equipment on the market generally suffers from drawbacks such as cumbersome structure and complex assembly process. Not only do they require professionals to spend a lot of time to complete the assembly and debugging, but the subsequent disassembly, transportation and maintenance of the equipment are also extremely difficult. At the same time, the cam box positioning structure of existing testing equipment has poor universality. For different specifications of ATC cam boxes, the corresponding positioning structure needs to be replaced, which makes the assembly process complicated and seriously affects the testing efficiency of ATC cam boxes. Summary of the Invention

[0004] The purpose of this invention is to provide an ATC test bench to solve the problems mentioned above.

[0005] The objective of this invention can be achieved through the following technical solution: an ATC test bench, comprising: The test assembly includes a test frame, a pad mounted on top of the test frame, an ATC cam box mounted on top of the pad, a tool arm holder fitted outside the output end of the ATC cam box, a tool arm body fitted outside the tool arm holder, a dummy spindle base mounted on top of the pad, a dummy spindle tool sleeve fitted inside the tool arm body and installed inside the dummy spindle base, and a tool holder counterweight installed inside the dummy spindle tool sleeve.

[0006] Preferably, an expansion sleeve is installed inside the cutter arm seat.

[0007] Preferably, the top of the pad is provided with a first connecting hole, and the top of the test frame is provided with a second connecting hole corresponding to the position of the first connecting hole; The first connecting hole and the second connecting hole are screwed with first fixing bolts.

[0008] Preferably, the bottom of the ATC cam box is provided with a first positioning groove; The top of the pad is provided with a first double circular keyway, and a first double circular key body that is inserted into the first positioning groove is provided inside the first double circular keyway. The first double circular key body has a third connecting hole at its top, and the first double circular keyway has a fourth connecting hole at its bottom corresponding to the position of the third connecting hole. The third and fourth connecting holes are screwed with second fixing bolts.

[0009] Preferably, the bottom of the pad is provided with a fifth connecting hole, and the bottom of the ATC cam box is provided with a sixth connecting hole corresponding to the position of the fifth connecting hole; The fifth and sixth connecting holes are screwed with third fixing bolts.

[0010] Preferably, the bottom of the dummy spindle base is provided with a second positioning groove; The top of the pad is provided with a second double circular keyway, and a second double circular key body is provided inside the second double circular keyway, which is inserted into the second positioning groove. The second double circular key body has a seventh connecting hole at its top, and the second double circular keyway has an eighth connecting hole at its bottom corresponding to the position of the seventh connecting hole. The seventh and eighth connecting holes are screwed with fourth fixing bolts.

[0011] Preferably, the dummy spindle base has a ninth connecting hole, and the top of the pad has a tenth connecting hole corresponding to the position of the ninth connecting hole; The ninth and tenth connecting holes are screwed with fifth fixing bolts.

[0012] Preferably, a bracket adjustment block is provided on the top of the pad, and the bracket adjustment block is located on the rear side of the dummy spindle base; The top of the bracket adjustment block is provided with an eleventh connecting hole, and the top of the pad is provided with a twelfth connecting hole corresponding to the position of the eleventh connecting hole. The eleventh and twelfth connecting holes are screwed with a sixth fixing bolt inside; The rear end of the bracket adjustment block is provided with a thirteenth connecting hole, and the rear end of the dummy spindle base is provided with a fourteenth connecting hole corresponding to the position of the thirteenth connecting hole; The thirteenth and fourteenth connecting holes are screwed with the seventh fixing bolt.

[0013] The beneficial effects of this invention are: During assembly, the first fixing bolt is screwed into the first and second connecting holes to complete the assembly of the test frame and the pad; the third fixing bolt is screwed into the fifth and sixth connecting holes to complete the assembly of the ATC cam box and the pad. During disassembly, the first fixing bolt is removed from the first and second connecting holes to release the assembly of the test frame and the pad; the third fixing bolt is removed from the fifth and sixth connecting holes to release the assembly of the ATC cam box and the pad. Compared with existing technologies, this invention has a simple structure, and the assembly and disassembly operations are convenient, time-saving, and labor-saving, effectively reducing the difficulty of later handling and maintenance. Because the pad has good assembly and disassembly capabilities, the appropriate pad can be selected for different ATC cam boxes, which helps to improve the overall versatility of the test fixture and ensure the testing efficiency of the ATC cam box. Attached Figure Description

[0014] The invention will now be further described with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the pad and ATC cam box in this invention; Figure 3 This is a schematic diagram of the first double circular keyway and the first double circular key body structure in this invention; Figure 4 This is a schematic diagram of the first double circular bond body structure in this invention; Figure 5 This is a schematic diagram of the first positioning groove structure in this invention; Figure 6 This is a schematic diagram of the support adjustment block structure in this invention; Figure 7 This is a schematic diagram of the second double circular keyway and the second double circular key body structure in this invention; Figure 8 This is a schematic diagram of the eighth connecting hole structure in this invention; Figure 9 This is a schematic diagram of the second positioning groove structure in this invention.

[0015] Legend: 11. Test fixture; 12. Pad; 13. ATC cam box; 14. First connecting hole; 15. First fixing bolt; 16. Dummy spindle tool holder; 17. Tool holder counterweight; 18. Dummy spindle base; 19. Bracket adjustment block; 110. First positioning groove; 111. First double circular keyway; 112. First double circular key body; 113. Fourth connecting hole; 114. Third connecting hole; 115. Second fixing bolt; 116. Fifth connecting hole; 117. Sixth connecting hole; 118. Third 119. Fixing bolt; 120. Second double circular keyway; 121. Second double circular key body; 122. Seventh connecting hole; 123. Eighth connecting hole; 124. Fourth fixing bolt; 125. Second positioning groove; 126. Ninth connecting hole; 127. Tenth connecting hole; 128. Tool arm body; 129. Eleventh connecting hole; 130. Twelfth connecting hole; 131. Sixth fixing bolt; 132. Fourteenth connecting hole; 133. Seventh fixing bolt; 134. Tool arm seat; 135. Expansion sleeve. Detailed Implementation

[0016] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The background of this invention is that existing conventional ATC cam box testing equipment generally suffers from defects such as cumbersome structure and complex assembly process. Not only do they require professional personnel to spend a lot of time to complete the assembly and debugging, but the subsequent disassembly, transportation, and maintenance of the equipment are also extremely difficult. At the same time, the cam box positioning structure of existing testing equipment has poor universality. For different specifications of ATC cam boxes, corresponding positioning structures need to be replaced, which is complicated in assembly process and seriously affects the testing efficiency of ATC cam boxes. The technical solution of this invention is to solve the technical problems of existing ATC cam box testing equipment having cumbersome structure, complex assembly process, long assembly and debugging time, high difficulty in subsequent disassembly, transportation, and maintenance, and insufficient universality of cam box positioning structure, which requires the replacement of matching positioning structures for different specifications of products, resulting in cumbersome process and low testing efficiency. Please see Figures 1-9As shown, this embodiment is an ATC test bench, including: a test assembly, the test assembly including a test frame 11, a pad 12 mounted on the top of the test frame 11, an ATC cam box 13 mounted on the top of the pad 12, a tool arm holder 133 sleeved outside the output end of the ATC cam box 13, a tool arm body 127 sleeved outside the tool arm holder 133, a dummy spindle base 18 mounted on the top of the pad 12, a dummy spindle tool sleeve 16 sleeved inside the tool arm body 127 and mounted inside the dummy spindle base 18, a tool holder counterweight 17 mounted inside the dummy spindle tool sleeve 16, and a tool holder counterweight 17 inside the tool arm holder 133. An expansion sleeve 134 is installed. A first connecting hole 14 is provided on the top of the pad 12, and a second connecting hole corresponding to the position of the first connecting hole 14 is provided on the top of the test fixture 11. First fixing bolts 15 are screwed into the first connecting hole 14 and the second connecting hole. A first positioning groove 110 is provided at the bottom of the ATC cam box 13. A first double circular keyway 111 is provided on the top of the pad 12, and a first double circular key body 112, which is inserted into the first positioning groove 110, is provided inside the first double circular keyway 111. A third connecting hole 114 is provided on the top of the first double circular key body 112, and a third connecting hole 114 is provided at the bottom of the first double circular keyway 111. A fourth connecting hole 113 is provided, corresponding to the position of the third connecting hole 114; a second fixing bolt 115 is screwed into the third connecting hole 114 and the fourth connecting hole 113; a fifth connecting hole 116 is provided at the bottom of the pad 12; a sixth connecting hole 117 is provided at the bottom of the ATC cam box 13, corresponding to the position of the fifth connecting hole 116; a third fixing bolt 118 is screwed into the fifth connecting hole 116 and the sixth connecting hole 117; a second positioning groove 124 is provided at the bottom of the dummy spindle base 18; a second double circular keyway 119 is provided at the top of the pad 12, and a retaining device is provided inside the second double circular keyway 119. The second double key body 120 is inserted into the second positioning groove 124; the top of the second double key body 120 is provided with a seventh connecting hole 121, and the bottom of the second double keyway 119 is provided with an eighth connecting hole 122 corresponding to the position of the seventh connecting hole 121; a fourth fixing bolt 123 is screwed into the seventh connecting hole 121 and the eighth connecting hole 122; a ninth connecting hole 125 is provided on the dummy spindle base 18; a tenth connecting hole 126 corresponding to the position of the ninth connecting hole 125 is provided on the top of the pad 12; a fifth fixing bolt is screwed into the ninth connecting hole 125 and the tenth connecting hole 126.

[0018] Specifically, during assembly, the first fixing bolt 15 is screwed into the first connecting hole 14 and the second connecting hole to complete the assembly between the test frame 11 and the pad 12; the third fixing bolt 118 is screwed into the fifth connecting hole 116 and the sixth connecting hole 117 to complete the assembly between the ATC cam box 13 and the pad 12. During disassembly, the first fixing bolt 15 is removed from the first connecting hole 14 and the second connecting hole to release the assembly between the test frame 11 and the pad 12; the third fixing bolt 118 is removed from the fifth connecting hole 116 and the sixth connecting hole 117 to release the assembly between the ATC cam box 13 and the pad 12. Compared with existing technologies, this invention has a simple structure, and the assembly and disassembly operations are convenient, time-saving, and labor-saving, effectively reducing the difficulty of later handling and maintenance. Because the pad 12 has good assembly and disassembly capabilities, the appropriate pad 12 can be selected for different ATC cam boxes 13, which helps to improve the overall versatility of the test fixture 11 and ensure the testing efficiency of the ATC cam box 13.

[0019] Before assembling the ATC cam box 13, the first double key body 112 is placed inside the first double keyway 111, and then the second fixing bolt 115 is screwed into the third connecting hole 114 and the fourth connecting hole 113 to fix the first double key body 112 into the first double keyway 111. When assembling the ATC cam box 13, the first double key body 112 is preferentially inserted into the first positioning groove 110 at the bottom of the ATC cam box 13 to achieve the purpose of pre-positioning the ATC cam box 13 and improve the assembly accuracy of the ATC cam box 13.

[0020] The dummy spindle base 18 can fix the dummy spindle tool holder 16, and at the same time, it can finely adjust the dummy spindle tool holder 16 to make the tool holder counterweight 17 and the dummy spindle tool holder 16 have good concentricity.

[0021] Before assembling the dummy spindle base 18, the second double key body 120 is placed inside the second double keyway 119, and then the fourth fixing bolt 123 is screwed into the seventh connecting hole 121 and the eighth connecting hole 122 to fix the second double key body 120 into the second double keyway 119. When assembling the dummy spindle base 18, the second double key body 120 is preferentially inserted into the second positioning groove 124 to achieve the purpose of pre-positioning the dummy spindle base 18 and improve the assembly accuracy of the dummy spindle base 18.

[0022] Please see Figures 1-3 , Figures 6-8As shown, a bracket adjustment block 19 is provided on the top of the pad 12, and the bracket adjustment block 19 is located on the rear side of the dummy spindle base 18; the top of the bracket adjustment block 19 has an eleventh connecting hole 128, and the top of the pad 12 has a twelfth connecting hole 129 corresponding to the position of the eleventh connecting hole 128; a sixth fixing bolt 130 is screwed into the eleventh connecting hole 128 and the twelfth connecting hole 129; a thirteenth connecting hole is provided at the rear end of the bracket adjustment block 19, and a fourteenth connecting hole 131 corresponding to the position of the thirteenth connecting hole is provided at the rear end of the dummy spindle base 18; a seventh fixing bolt 132 is screwed into the thirteenth connecting hole and the fourteenth connecting hole 131.

[0023] Specifically, the bracket adjustment block 19 is placed on top of the pad 12, and the sixth fixing bolt 130 is screwed into the eleventh connecting hole 128 and the twelfth connecting hole 129 to fix the bracket adjustment block 19 on top of the pad 12. Then, the seventh fixing bolt 132 is screwed into the thirteenth connecting hole and the fourteenth connecting hole 131 to connect and fix the bracket adjustment block 19 to the dummy spindle base 18, which improves the stability of the dummy spindle base 18 and avoids vibration deviation of the dummy spindle base 18 during tool changing.

[0024] In summary, firstly, the original test bench used a common motor, requiring an induction wheel or an external encoder. Compared to traditional test benches, this application uses a servo motor with a built-in encoder to form a closed-loop control system. This results in high positioning accuracy, adjustable motion parameters, and real-time acquisition of position data, accurately simulating the actual operating conditions of the tool magazine and achieving quantitative performance testing and anti-collision protection. Secondly, this application adopts a modular and universal design, equipped with a quick-change adapter plate 12 structure. For different sizes and models of ATC cam boxes 13, only the corresponding dedicated plate 12 needs to be replaced to achieve accurate product positioning and stable clamping. This versatile design significantly reduces equipment procurement and maintenance costs, improves equipment utilization, and is suitable for mass production testing scenarios of ATC cam boxes 13 in multiple specifications and batches. Furthermore, this ATC cam box 13 testing equipment uses a dual-sided synchronous loading method to accurately match the pressure changes, dynamic impacts, and reciprocating load characteristics during cam operation. This can completely replicate the complex dynamic loads in actual equipment operation, effectively avoiding testing errors caused by traditional loading methods. Meanwhile, the loading structure is highly responsive, has high control precision, and operates smoothly and reliably. It can accurately capture performance changes and subtle potential faults during the operation of the ATC cam box 13. Finally, compared with the traditional horizontal test structure, the vertical installation can truly restore the gravity distribution, load transmission and motion coordination state of the ATC cam box 13 during operation, accurately simulate various working parameters of the equipment in actual operation, and make the test environment highly consistent with the on-site installation environment.

[0025] Working principle: During assembly, the first fixing bolt 15 is screwed into the first connecting hole 14 and the second connecting hole to complete the assembly between the test frame 11 and the pad 12; the third fixing bolt 118 is screwed into the fifth connecting hole 116 and the sixth connecting hole 117 to complete the assembly between the ATC cam box 13 and the pad 12. During disassembly, the first fixing bolt 15 is removed from the first connecting hole 14 and the second connecting hole to release the assembly between the test frame 11 and the pad 12; the third fixing bolt 118 is removed from the fifth connecting hole 116 and the sixth connecting hole 117 to release the assembly between the ATC cam box 13 and the pad 12. Compared with the existing inventions, this invention has a simple structure, and the assembly and disassembly operations are convenient, time-saving, and labor-saving, effectively reducing the difficulty of later handling and maintenance. Since the pad 12 has good assembly and disassembly capabilities, the appropriate pad 12 can be selected for different ATC cam boxes 13, which helps to improve the overall versatility of the test frame 11 and ensure the testing efficiency of the ATC cam box 13. Before assembling the ATC cam box 13, the first double key body 112 is placed inside the first double keyway 111. Then, the second fixing bolt 115 is screwed into the third connecting hole 114 and the fourth connecting hole 113, thus fixing the first double key body 112 into the first double keyway 111. During the assembly of the ATC cam box 13, the first double key body 112 is preferentially inserted into the first positioning groove 110 at the bottom of the ATC cam box 13, achieving the purpose of pre-positioning the ATC cam box 13 and improving the assembly accuracy of the ATC cam box 13. The dummy spindle base 18 can fix the dummy spindle tool holder 16 and can also finely adjust the dummy spindle tool holder 16 to ensure good concentricity between the tool holder counterweight 17 and the dummy spindle tool holder 16. Before assembling the dummy spindle base 18, the second double key body 120 is placed inside the second double keyway 119. Then, the fourth fixing bolt 123 is screwed into the seventh connecting hole 121 and the eighth connecting hole 122, thus fixing the second double key body 120 into the second double keyway 119. During the assembly of the dummy spindle base 18, the second double key body 120 preferentially engages with the second positioning groove 124, achieving pre-positioning of the dummy spindle base 18 and improving the assembly precision of the dummy spindle base 18. For accuracy, place the bracket adjustment block 19 on top of the pad 12, and then screw the sixth fixing bolt 130 into the eleventh connecting hole 128 and the twelfth connecting hole 129 to fix the bracket adjustment block 19 on top of the pad 12; then screw the seventh fixing bolt 132 into the thirteenth connecting hole and the fourteenth connecting hole 131 to connect and fix the bracket adjustment block 19 to the dummy spindle base 18, which improves the stability of the dummy spindle base 18 and avoids vibration deviation of the dummy spindle base 18 during tool changing.

[0026] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An ATC test bench, characterized in that, include: The test assembly includes a test frame (11), a pad (12) mounted on top of the test frame (11), an ATC cam box (13) mounted on top of the pad (12), a tool arm seat (133) sleeved outside the output end of the ATC cam box (133), a tool arm body (127) sleeved outside the tool arm seat (133), a dummy spindle base (18) mounted on top of the pad (12), a dummy spindle tool sleeve (16) sleeved inside the tool arm body (127) and installed inside the dummy spindle base (18), and a tool holder counterweight (17) installed inside the dummy spindle tool sleeve (16).

2. The ATC test bench according to claim 1, characterized in that, An expansion sleeve (134) is installed inside the cutter arm holder (133).

3. An ATC test bench according to claim 1, characterized in that, The pad (12) has a first connecting hole (14) on its top, and the test frame (11) has a second connecting hole on its top corresponding to the position of the first connecting hole (14). The first connecting hole (14) and the second connecting hole are screwed with a first fixing bolt (15).

4. An ATC test bench according to claim 1, characterized in that, The bottom of the ATC cam box (13) is provided with a first positioning groove (110); The top of the pad (12) is provided with a first double circular keyway (111), and a first double circular key body (112) is provided inside the first double circular keyway (111) and inserted into the first positioning groove (110); The first double circular key body (112) has a third connecting hole (114) at the top, and the first double circular keyway (111) has a fourth connecting hole (113) at the bottom corresponding to the position of the third connecting hole (114); The third connecting hole (114) and the fourth connecting hole (113) are screwed with second fixing bolts (115).

5. An ATC test bench according to claim 1, characterized in that, The bottom of the pad (12) is provided with a fifth connecting hole (116), and the bottom of the ATC cam box (13) is provided with a sixth connecting hole (117) corresponding to the position of the fifth connecting hole (116); The fifth connecting hole (116) and the sixth connecting hole (117) are screwed with a third fixing bolt (118).

6. An ATC test bench according to claim 1, characterized in that, The bottom of the dummy spindle base (18) is provided with a second positioning groove (124); The top of the pad (12) is provided with a second double circular keyway (119), and a second double circular key body (120) is provided inside the second double circular keyway (119) and is inserted into the second positioning groove (124); The second double circular key body (120) has a seventh connecting hole (121) at the top, and the second double circular keyway (119) has an eighth connecting hole (122) at the bottom corresponding to the position of the seventh connecting hole (121); The seventh connecting hole (121) and the eighth connecting hole (122) are screwed with a fourth fixing bolt (123).

7. An ATC test bench according to claim 1, characterized in that, The dummy spindle base (18) is provided with a ninth connecting hole (125), and the top of the pad (12) is provided with a tenth connecting hole (126) corresponding to the position of the ninth connecting hole (125); The ninth connecting hole (125) and the tenth connecting hole (126) are screwed with fifth fixing bolts.

8. An ATC test bench according to claim 1, characterized in that, The top of the pad (12) is provided with a bracket adjustment block (19), which is located behind the dummy spindle base (18); The bracket adjustment block (19) has an eleventh connecting hole (128) on its top, and the pad (12) has a twelfth connecting hole (129) on its top, which corresponds to the position of the eleventh connecting hole (128). The eleventh connecting hole (128) and the twelfth connecting hole (129) are screwed with a sixth fixing bolt (130); The bracket adjustment block (19) has a thirteenth connecting hole at its rear end, and the dummy spindle base (18) has a fourteenth connecting hole (131) at its rear end, which corresponds to the position of the thirteenth connecting hole. The thirteenth and fourteenth connecting holes (131) are screwed with a seventh fixing bolt (132).

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